diff --git a/testsuites/unittest/config.gni b/testsuites/unittest/config.gni
index d7c6da1c69fe6a336d5406c1e0c4644e3bae1a2e..0520a70294b15b560725edf40c871342d69a01fb 100644
--- a/testsuites/unittest/config.gni
+++ b/testsuites/unittest/config.gni
@@ -73,4 +73,4 @@ LOSCFG_USER_TEST_SIGNAL = true
 LOSCFG_USER_TEST_SYS = true
 LOSCFG_USER_TEST_TIME_CLOCK = true 
 LOSCFG_USER_TEST_TIME_TIMER = true
-LOSCFG_USER_TEST_UTIL = true
\ No newline at end of file
+LOSCFG_USER_TEST_UTIL = true
diff --git a/testsuites/unittest/fs/BUILD.gn b/testsuites/unittest/fs/BUILD.gn
index 7fc066b366c290c7e058e549a61502437253bb85..bc1b6d76964410807428ed59cdd6a1333b6bb740 100644
--- a/testsuites/unittest/fs/BUILD.gn
+++ b/testsuites/unittest/fs/BUILD.gn
@@ -55,7 +55,7 @@ sources_smoke = [
   "jffs/smoke/It_vfs_jffs_035.cpp",
   "jffs/smoke/It_vfs_jffs_094.cpp",
   "jffs/smoke/It_vfs_jffs_095.cpp",
-  #"jffs/smoke/It_vfs_jffs_103.cpp",
+  "jffs/smoke/It_vfs_jffs_103.cpp",
   "jffs/smoke/It_vfs_jffs_535.cpp",
   "jffs/smoke/It_vfs_jffs_Dac_001.cpp",
 ]
@@ -128,7 +128,7 @@ sources_pressure = [
   "jffs/pressure/It_fs_jffs_pressure_053.cpp",
   "jffs/pressure/It_fs_jffs_pressure_301.cpp",
   "jffs/pressure/It_fs_jffs_pressure_302.cpp",
-  #"jffs/pressure/It_fs_jffs_pressure_303.cpp",
+  "jffs/pressure/It_fs_jffs_pressure_303.cpp",
   "jffs/pressure/It_fs_jffs_pressure_304.cpp",
   "jffs/pressure/It_fs_jffs_pressure_305.cpp",
   "jffs/pressure/It_fs_jffs_pressure_306.cpp",
@@ -289,7 +289,7 @@ sources_full = [
   "jffs/full/It_vfs_jffs_048.cpp",
   "jffs/full/It_vfs_jffs_049.cpp",
   "jffs/full/It_vfs_jffs_050.cpp",
-  #"jffs/full/It_vfs_jffs_051.cpp",
+  "jffs/full/It_vfs_jffs_051.cpp",
   "jffs/full/It_vfs_jffs_053.cpp",
   "jffs/full/It_vfs_jffs_055.cpp",
   "jffs/full/It_vfs_jffs_056.cpp",
@@ -837,4 +837,4 @@ if (LOSCFG_USER_TEST_LEVEL >= TEST_LEVEL_HIGH) {
     configs = [ "..:public_config_for_pressure" ]
     deps = [ "//third_party/bounds_checking_function:libsec_shared" ]
   }
-}
\ No newline at end of file
+}
diff --git a/testsuites/unittest/fs/jffs/It_vfs_jffs.h b/testsuites/unittest/fs/jffs/It_vfs_jffs.h
index f1fd0b3055a89bceb3ca317b6ca9c2a1e2ce3789..a64eddb87e0d00756f104a39d58a233c15db8c63 100644
--- a/testsuites/unittest/fs/jffs/It_vfs_jffs.h
+++ b/testsuites/unittest/fs/jffs/It_vfs_jffs.h
@@ -137,7 +137,7 @@ constexpr int JFFS_MAX_DEF_BUF_NUM = 21;
 constexpr int JFFS_FILE_LIMITTED_NUM = 200;
 
 constexpr int JFFS_FILE_SIZE_TEST = 100 * 1024 * 1024; // *1024
-constexpr int JFFS_PERFORMANCE_W_R_SIZE = 10 * 1024 * 1024;
+constexpr int JFFS_PERFORMANCE_W_R_SIZE = 5 * 1024 * 1024;
 constexpr int JFFS_FILE_PER_WRITE_SIZE = 5 * 1024 * 1024;
 constexpr int JFFS_PRESSURE_W_R_SIZE1 = 1 * 1024 * 1024;
 constexpr int JFFS_PRESSURE_W_R_SIZE2 = 5 * 1024 * 1024;
diff --git a/testsuites/unittest/fs/jffs/full/It_jffs_011.cpp b/testsuites/unittest/fs/jffs/full/It_jffs_011.cpp
index 451e274ac598f0d5e054fab67cb29a8bf6f86060..df31ea3f7e6a4a1d2f4aa78922e7c5d1d54ad04e 100644
--- a/testsuites/unittest/fs/jffs/full/It_jffs_011.cpp
+++ b/testsuites/unittest/fs/jffs/full/It_jffs_011.cpp
@@ -40,7 +40,7 @@ static UINT32 Testcase(VOID)
     CHAR *pfd = NULL;
 
     ret = chdir(pathname1);
-    ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT);
+    ICUNIT_GOTO_NOT_EQUAL(ret, JFFS_IS_ERROR, ret, EXIT);
 
     pfd = mktemp(tempFile);
     ICUNIT_GOTO_NOT_EQUAL(pfd, NULL, pfd, EXIT1);
diff --git a/testsuites/unittest/fs/jffs/full/It_jffs_012.cpp b/testsuites/unittest/fs/jffs/full/It_jffs_012.cpp
index 29ea6a29c318affb5fb630a9d7d032f04a8ade81..931adfd65fe9eee6f9bfab754897f7d0cab5a89f 100644
--- a/testsuites/unittest/fs/jffs/full/It_jffs_012.cpp
+++ b/testsuites/unittest/fs/jffs/full/It_jffs_012.cpp
@@ -40,7 +40,7 @@ static UINT32 Testcase(VOID)
     CHAR *pfd = NULL;
 
     ret = chdir(pathname1);
-    ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT);
+    ICUNIT_GOTO_NOT_EQUAL(ret, JFFS_IS_ERROR, ret, EXIT);
 
     pfd = mkdtemp(tempFile);
     ICUNIT_GOTO_NOT_EQUAL(pfd, NULL, pfd, EXIT1);
diff --git a/testsuites/unittest/fs/jffs/full/It_vfs_jffs_045.cpp b/testsuites/unittest/fs/jffs/full/It_vfs_jffs_045.cpp
index 650663b734e08dd809865d0e89bd6111e5330ca8..f99e7df8356836822ee5f1decfb45252af58e72b 100644
--- a/testsuites/unittest/fs/jffs/full/It_vfs_jffs_045.cpp
+++ b/testsuites/unittest/fs/jffs/full/It_vfs_jffs_045.cpp
@@ -55,7 +55,7 @@ static UINT32 Testcase(VOID)
     ICUNIT_GOTO_NOT_EQUAL(fd1, -1, fd1, EXIT3);
 
     len = read(fd1, readbuf, JFFS_STANDARD_NAME_LENGTH);
-    ICUNIT_GOTO_EQUAL(len, 0, len, EXIT3);
+    ICUNIT_GOTO_EQUAL(len, 10, len, EXIT3); // 10 means read size
 
     len = write(fd1, "abcde", 6); // 6 means write len
     ICUNIT_GOTO_EQUAL(len, 6, len, EXIT3);
diff --git a/testsuites/unittest/fs/jffs/full/It_vfs_jffs_077.cpp b/testsuites/unittest/fs/jffs/full/It_vfs_jffs_077.cpp
index 127ad1b7042fda5576c868aebb98222db726879a..0665026f83c81a21af26c60a6ae108ca029dfb6f 100644
--- a/testsuites/unittest/fs/jffs/full/It_vfs_jffs_077.cpp
+++ b/testsuites/unittest/fs/jffs/full/It_vfs_jffs_077.cpp
@@ -47,6 +47,7 @@ static UINT32 Testcase(VOID)
     ret = mkdir(pathname1, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT1);
 
+    strcat_s(pathname2, sizeof(pathname2), "/test");
     strcat_s(pathname2, sizeof(pathname2), "/test");
     ret = mkdir(pathname2, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT2);
diff --git a/testsuites/unittest/fs/jffs/full/It_vfs_jffs_078.cpp b/testsuites/unittest/fs/jffs/full/It_vfs_jffs_078.cpp
index 7399288bfa663e669b9a0a4b64d1eccba965c38f..c9d5c6d71b5ff18c72b8450959e235d411b5f369 100644
--- a/testsuites/unittest/fs/jffs/full/It_vfs_jffs_078.cpp
+++ b/testsuites/unittest/fs/jffs/full/It_vfs_jffs_078.cpp
@@ -48,7 +48,7 @@ static UINT32 Testcase(VOID)
     fd1 = open(pathname1, O_NONBLOCK | O_CREAT | O_RDWR | O_EXCL, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_NOT_EQUAL(fd1, -1, fd1, EXIT1);
 
-    strcat_s(pathname2, sizeof(pathname2), "/test");
+    strcat_s(pathname2, sizeof(pathname2), "/TEst");
     fd2 = open(pathname2, O_NONBLOCK | O_CREAT | O_RDWR | O_EXCL, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_NOT_EQUAL(fd2, -1, fd2, EXIT2);
 
diff --git a/testsuites/unittest/fs/jffs/full/It_vfs_jffs_215.cpp b/testsuites/unittest/fs/jffs/full/It_vfs_jffs_215.cpp
index 70ad022a647402d601f383a09127456068e57644..6927fc30b10609a29d600b3cb1113201721d4777 100644
--- a/testsuites/unittest/fs/jffs/full/It_vfs_jffs_215.cpp
+++ b/testsuites/unittest/fs/jffs/full/It_vfs_jffs_215.cpp
@@ -48,7 +48,7 @@ static UINT32 TestCase(VOID)
     ICUNIT_GOTO_NOT_EQUAL(pret, NULL, pret, EXIT);
     ICUNIT_GOTO_STRING_EQUAL(buf, JFFS_PATH_NAME0, buf, EXIT);
 
-    pret = getcwd(buf, JFFS_STANDARD_NAME_LENGTH);
+    pret = getcwd(buf, 5); // 5 is less than path length
     ICUNIT_GOTO_EQUAL(pret, NULL, pret, EXIT);
     ICUNIT_GOTO_EQUAL(errno, ERANGE, errno, EXIT);
 
diff --git a/testsuites/unittest/fs/jffs/full/It_vfs_jffs_427.cpp b/testsuites/unittest/fs/jffs/full/It_vfs_jffs_427.cpp
index a36d242fd521e4cbd60f34f413d60033a78edcdb..4f3b227c4dbf7ca110183ba08c6ba382c2a0fb98 100644
--- a/testsuites/unittest/fs/jffs/full/It_vfs_jffs_427.cpp
+++ b/testsuites/unittest/fs/jffs/full/It_vfs_jffs_427.cpp
@@ -105,12 +105,12 @@ static UINT32 Testcase(VOID)
     memset(bufW2, 0, JFFS_SHORT_ARRAY_LENGTH + 1);
 
     off = lseek(fd3, 0, SEEK_SET);
-    ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT6);
+    ICUNIT_GOTO_EQUAL(off, JFFS_NO_ERROR, off, EXIT6);
 
     g_jffsIov[0].iov_base = bufW1;
-    g_jffsIov[0].iov_len = 0xffff;
+    g_jffsIov[0].iov_len = JFFS_SHORT_ARRAY_LENGTH;
     g_jffsIov[1].iov_base = bufW2;
-    g_jffsIov[1].iov_len = 0xffff;
+    g_jffsIov[1].iov_len = JFFS_SHORT_ARRAY_LENGTH;
 
     lenV = readv(fd3, g_jffsIov, 2); // reads 2 buffers from the fd
     ICUNIT_GOTO_EQUAL(lenV, 20, lenV, EXIT6); // compare ret lenV to target 20 lenV
diff --git a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_performance_009.cpp b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_performance_009.cpp
index ac22734f3d097bdaeadd925d09ce4767f3e579bb..3d744ad570d54d10de6aa7e21603341684a0cddf 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_performance_009.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_performance_009.cpp
@@ -75,6 +75,8 @@ static UINT32 TestCase(VOID)
         len = write(fd[index], bufW, strlen(bufW));
         if (len <= 0) {
             flag = 1;
+            ret = close(fd[index]);
+            ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT2);
             break;
         }
 
diff --git a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_023.cpp b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_023.cpp
index 2c827eeb1a97e28e121985e63f8feb00d9d911be..842ed161c8ccd5dfc899aa84d814d02bc854f34d 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_023.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_023.cpp
@@ -38,6 +38,7 @@ static UINT32 TestCase(VOID)
     INT32 i = 0;
     INT32 j = 0;
     INT32 k = JFFS_SHORT_ARRAY_LENGTH;
+    INT32 jffsPressureCycles = 4;  // write size 4 * 1024 * 1024
     signed long long offset;
 
     CHAR filebuf[FILE_BUF_SIZE] =
@@ -101,11 +102,11 @@ static UINT32 TestCase(VOID)
     fd = open(pathname1, O_NONBLOCK | O_CREAT | O_RDWR | O_EXCL, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_NOT_EQUAL(fd, -1, fd, EXIT2);
 
-    for (j = 0; j < JFFS_PRESSURE_CYCLES; j++) {
+    for (j = 0; j < jffsPressureCycles; j++) {
         off = lseek(fd, 0, SEEK_SET);
         ICUNIT_GOTO_EQUAL(off, 0, off, EXIT2);
 
-        for (i = 0; i < JFFS_PRESSURE_CYCLES; i++) {
+        for (i = 0; i < jffsPressureCycles; i++) {
             ret = write(fd, bufW, strlen(bufW));
             printf("cnt=%d %d\n", i, j);
             ICUNIT_GOTO_EQUAL(ret, BYTES_PER_MBYTE, ret, EXIT2);
@@ -115,8 +116,8 @@ static UINT32 TestCase(VOID)
         }
         ret = stat(pathname1, &statfile);
         ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT2);
-        // file size: 10 * 1024 * 1024
-        ICUNIT_GOTO_EQUAL(statfile.st_size, 10 * 1024 * 1024, statfile.st_size, EXIT2);
+        // file size: 4 * 1024 * 1024
+        ICUNIT_GOTO_EQUAL(statfile.st_size, 4 * 1024 * 1024, statfile.st_size, EXIT2);
     }
 
     ret = close(fd);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_026.cpp b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_026.cpp
index 8b4fb5498e14d25c7847442b271d44b127030607..c0075f20b82dd6f317b52d42a649a4749cef9e37 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_026.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_026.cpp
@@ -44,7 +44,7 @@ static UINT32 TestCase(VOID)
     CHAR readbuf[JFFS_STANDARD_NAME_LENGTH] = "liteos";
     CHAR bufname[JFFS_STANDARD_NAME_LENGTH] = "123";
     CHAR pathname1[JFFS_STANDARD_NAME_LENGTH] = { JFFS_PATH_NAME0 };
-    CHAR pathname2[JFFS_STANDARD_NAME_LENGTH] = { JFFS_PATH_NAME0 };
+    CHAR pathname2[JFFS_NAME_LIMITTED_SIZE] = { JFFS_PATH_NAME0 };
     CHAR pathname3[JFFS_SHORT_ARRAY_LENGTH][JFFS_NAME_LIMITTED_SIZE] = {0};
     CHAR pathname4[JFFS_SHORT_ARRAY_LENGTH][JFFS_NAME_LIMITTED_SIZE] = {0};
     CHAR pathname5[JFFS_SHORT_ARRAY_LENGTH][JFFS_NAME_LIMITTED_SIZE] = {0};
@@ -67,7 +67,8 @@ static UINT32 TestCase(VOID)
 
     for (i = 0; i < JFFS_SHORT_ARRAY_LENGTH; i++) {
         snprintf_s(bufname, JFFS_STANDARD_NAME_LENGTH, JFFS_STANDARD_NAME_LENGTH - 1, "/test%d", i);
-        strcat_s(pathname2, JFFS_STANDARD_NAME_LENGTH, bufname);
+        strcat_s(pathname2, JFFS_NAME_LIMITTED_SIZE, bufname);
+
         strcpy_s(pathname3[i], JFFS_NAME_LIMITTED_SIZE, pathname2);
 
         ret = mkdir(pathname3[i], HIGHEST_AUTHORITY);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_033.cpp b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_033.cpp
index e6e486aabe51220af9f02683a0802d5e9ce356be..04498908f8eb3ea7d827ffbb511ae4f31103fb41 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_033.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_033.cpp
@@ -170,7 +170,7 @@ static VOID *PthreadF02(void *arg)
     CHAR *bufR = NULL;
     CHAR *bufW = NULL;
     off_t off;
-    INT32 bufRSize = 6075; // 6075: read length
+    INT32 bufRSize = 6074; // 6074: read length
 
     ret = pthread_mutex_lock(&g_jffs2GlobalLock1);
     printf("[%d] Thread2 Start frist get lock\n", __LINE__);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_047.cpp b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_047.cpp
index 10c0ebb0c5a18e3eaa47fbad3b76521ba0f92e16..2e207ae334a13ffcf54724eda2ef86dcf55894f3 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_047.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_047.cpp
@@ -34,7 +34,7 @@
 static VOID *PthreadF01(void *arg)
 {
     INT32 ret, len;
-    UINT32 writeSize = JFFS_PRESSURE_W_R_SIZE2;
+    UINT32 writeSize = JFFS_PRESSURE_W_R_SIZE1;
     CHAR pathname1[JFFS_STANDARD_NAME_LENGTH] = { JFFS_PATH_NAME0 };
     CHAR writebuf[JFFS_STANDARD_NAME_LENGTH] = "0123456789";
     CHAR *writeBuf = NULL;
@@ -66,7 +66,7 @@ static VOID *PthreadF01(void *arg)
     printf("[%d]lseek64 off64:%lld Fd:%d \n", __LINE__, off64, g_jffsFd);
     ICUNIT_GOTO_EQUAL(statbuf1.st_size, off64, statbuf1.st_size, EXIT1);
 
-    len = write(g_jffsFd, writebuf, strlen(writebuf));
+    len = write(g_jffsFd, writeBuf, strlen(writeBuf));
     printf("[%d]lseek64 len:%d Fd:%d, errno:%d\n", __LINE__, len, g_jffsFd, errno);
     ICUNIT_GOTO_EQUAL(len, JFFS_IS_ERROR, len, EXIT1);
     ICUNIT_GOTO_EQUAL(errno, ENOSPC, errno, EXIT1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_052.cpp b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_052.cpp
index 06ea0f943eea204db1571276e3b52844a9e5e1f2..de6b6c9a4126a90c9436f7a17215a70f38852877 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_052.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_052.cpp
@@ -98,8 +98,9 @@ static VOID *PthreadF01(void *arg)
         testSpeed);
 
     return NULL;
-EXIT:
+EXIT1:
     close(g_jffsFd);
+EXIT:
     return NULL;
 }
 
diff --git a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_310.cpp b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_310.cpp
index 3549107e247b42e8de55f0cbf947c4d84348ce2d..bec8b3f2a6e142213a7097954ae3a16f88761c06 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_310.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_310.cpp
@@ -33,7 +33,8 @@
 
 static UINT32 TestCase(VOID)
 {
-    INT32 ret, i;
+    INT32 ret;
+    INT32 i = 0;
     INT32 scandirCount = 0;
     CHAR pathname1[JFFS_STANDARD_NAME_LENGTH] = { JFFS_PATH_NAME0 };
     CHAR pathname2[JFFS_NAME_LIMITTED_SIZE] = "";
@@ -52,7 +53,6 @@ static UINT32 TestCase(VOID)
     memset_s(pathname2, JFFS_NAME_LIMITTED_SIZE, 0, JFFS_NAME_LIMITTED_SIZE);
     memset_s(pathname3, JFFS_NAME_LIMITTED_SIZE, 0, JFFS_NAME_LIMITTED_SIZE);
     strcat_s(pathname6, JFFS_NAME_LIMITTED_SIZE, "/");
-
     // PATH_MAX test. The dirname has occupied 14 bytes.
     while (i < 241) { // loop times: 241
         i++;
diff --git a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_311.cpp b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_311.cpp
index 5b36e4b7c8f0684913fa554bbca72da8f801ab84..40fa396cd6185f61e666b4bdabcfd2a9ca6e70fe 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_311.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_fs_jffs_pressure_311.cpp
@@ -33,7 +33,8 @@
 
 static UINT32 TestCase(VOID)
 {
-    INT32 ret, i;
+    INT32 ret;
+    INT32 i = 0;
     INT32 fd = -1;
     INT32 scandirCount = 0;
     CHAR pathname1[JFFS_STANDARD_NAME_LENGTH] = { JFFS_MAIN_DIR0 };
@@ -82,7 +83,7 @@ static UINT32 TestCase(VOID)
     ICUNIT_GOTO_EQUAL(strlen(pathname3), 256, strlen(pathname3), EXIT); // pathname length: 256
     fd = open(pathname3, O_NONBLOCK | O_CREAT | O_RDWR | O_EXCL, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_EQUAL(fd, -1, fd, EXIT1);
-    ICUNIT_GOTO_EQUAL(errno, ENAMETOOLONG, errno, EXIT2);
+    ICUNIT_GOTO_EQUAL(errno, EINVAL, errno, EXIT2);
     ret = chdir("/");
     ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT2);
 
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_002.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_002.cpp
index 98175ae35a0780872028ed4110ad54c654beb7ee..f09d48cddf7039339abc0ffe3529e83d950af06f 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_002.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_002.cpp
@@ -40,6 +40,7 @@ static VOID *PthreadF01(void *arg)
     INT32 i = 0;
     INT32 j = 0;
     INT32 k = JFFS_SHORT_ARRAY_LENGTH;
+    INT32 jffsMaxCycles = 1; // 1 means 1 * 1024 * 1024 byte size
     CHAR filebuf[FILE_BUF_SIZE] =
         "abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123"
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
@@ -87,7 +88,7 @@ static VOID *PthreadF01(void *arg)
 
     strcat_s(pathname2, JFFS_STANDARD_NAME_LENGTH, "/004.txt"); //  /storage/test/004.txt
     fd1 = open(pathname2, O_NONBLOCK | O_CREAT | O_RDWR | O_EXCL, HIGHEST_AUTHORITY);
-    ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT2);
+    ICUNIT_GOTO_NOT_EQUAL(fd1, JFFS_IS_ERROR, fd1, EXIT2);
 
     len = write(fd1, writebuf, strlen(writebuf));
     ICUNIT_GOTO_EQUAL(len, strlen(writebuf), len, EXIT2);
@@ -112,7 +113,7 @@ static VOID *PthreadF01(void *arg)
     off = lseek(fd, 0, SEEK_SET);
     ICUNIT_GOTO_EQUAL(off, JFFS_NO_ERROR, off, EXIT2);
 
-    for (i = 0; i < JFFS_MAX_CYCLES; i++) {
+    for (i = 0; i < jffsMaxCycles; i++) {
         ret = write(fd, bufW, strlen(bufW));
         ICUNIT_GOTO_EQUAL(ret, BYTES_PER_MBYTE, ret, EXIT2);
 
@@ -131,8 +132,8 @@ static VOID *PthreadF01(void *arg)
 
     ret = stat(pathname1, &statfile);
     ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT2);
-    // 5 * 1024 * 1024: filesize
-    ICUNIT_GOTO_EQUAL(statfile.st_size, 5 * 1024 * 1024, statfile.st_size, EXIT2);
+    // 1 * 1024 * 1024: filesize
+    ICUNIT_GOTO_EQUAL(statfile.st_size, 1 * 1024 * 1024, statfile.st_size, EXIT2);
 
     ret = close(fd);
     ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT2);
@@ -167,6 +168,7 @@ static VOID *PthreadF02(void *arg)
     INT32 i = 0;
     INT32 j = 0;
     INT32 k = JFFS_SHORT_ARRAY_LENGTH;
+    INT32 jffsMaxCycles = 1; // 1 means 1 * 1024 * 1024 byte size
     CHAR filebuf[FILE_BUF_SIZE] =
         "abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123"
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
@@ -213,7 +215,7 @@ static VOID *PthreadF02(void *arg)
 
     strcat_s(pathname2, JFFS_STANDARD_NAME_LENGTH, "/005.txt");
     fd1 = open(pathname2, O_NONBLOCK | O_CREAT | O_RDWR | O_EXCL, HIGHEST_AUTHORITY);
-    ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT2);
+    ICUNIT_GOTO_NOT_EQUAL(fd1, JFFS_IS_ERROR, fd1, EXIT2);
 
     len = write(fd1, writebuf, strlen(writebuf));
     ICUNIT_GOTO_EQUAL(len, strlen(writebuf), len, EXIT2);
@@ -238,7 +240,7 @@ static VOID *PthreadF02(void *arg)
     off = lseek(fd, 0, SEEK_SET);
     ICUNIT_GOTO_EQUAL(off, JFFS_NO_ERROR, off, EXIT2);
 
-    for (i = 0; i < JFFS_MAX_CYCLES; i++) {
+    for (i = 0; i < jffsMaxCycles; i++) {
         ret = write(fd, bufW, strlen(bufW));
         ICUNIT_GOTO_EQUAL(ret, BYTES_PER_MBYTE, ret, EXIT2);
 
@@ -257,8 +259,8 @@ static VOID *PthreadF02(void *arg)
 
     ret = stat(pathname1, &statfile);
     ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT2);
-    // 5 * 1024 * 1024: filesize
-    ICUNIT_GOTO_EQUAL(statfile.st_size, 5 * 1024 * 1024, statfile.st_size, EXIT2);
+    // 1 * 1024 * 1024: filesize
+    ICUNIT_GOTO_EQUAL(statfile.st_size, 1 * 1024 * 1024, statfile.st_size, EXIT2);
 
     ret = close(fd);
     ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT2);
@@ -293,6 +295,7 @@ static VOID *PthreadF03(void *arg)
     INT32 i = 0;
     INT32 j = 0;
     INT32 k = JFFS_SHORT_ARRAY_LENGTH;
+    INT32 jffsMaxCycles = 1; // 1 means 1 * 1024 * 1024 byte size
     CHAR filebuf[FILE_BUF_SIZE] =
         "abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123"
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
@@ -339,7 +342,7 @@ static VOID *PthreadF03(void *arg)
 
     strcat_s(pathname2, JFFS_STANDARD_NAME_LENGTH, "/006.txt");
     fd1 = open(pathname2, O_NONBLOCK | O_CREAT | O_RDWR | O_EXCL, HIGHEST_AUTHORITY);
-    ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT2);
+    ICUNIT_GOTO_NOT_EQUAL(fd1, JFFS_IS_ERROR, fd1, EXIT2);
 
     len = write(fd1, writebuf, strlen(writebuf));
     ICUNIT_GOTO_EQUAL(len, strlen(writebuf), len, EXIT2);
@@ -364,7 +367,7 @@ static VOID *PthreadF03(void *arg)
     off = lseek(fd, 0, SEEK_SET);
     ICUNIT_GOTO_EQUAL(off, JFFS_NO_ERROR, off, EXIT2);
 
-    for (i = 0; i < JFFS_MAX_CYCLES; i++) {
+    for (i = 0; i < jffsMaxCycles; i++) {
         ret = write(fd, bufW, strlen(bufW));
         ICUNIT_GOTO_EQUAL(ret, BYTES_PER_MBYTE, ret, EXIT2);
 
@@ -383,8 +386,8 @@ static VOID *PthreadF03(void *arg)
 
     ret = stat(pathname1, &statfile);
     ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT2);
-    // 5 * 1024 * 1024: filesize
-    ICUNIT_GOTO_EQUAL(statfile.st_size, 5 * 1024 * 1024, statfile.st_size, EXIT2);
+    // 1 * 1024 * 1024: filesize
+    ICUNIT_GOTO_EQUAL(statfile.st_size, 1 * 1024 * 1024, statfile.st_size, EXIT2);
 
     ret = close(fd);
     ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT2);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_014.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_014.cpp
index 6173228a4c6b25109d153e216b3e83cd01dfa763..da8bed1201fd53b237de617da9f3071cb5aadf11 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_014.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_014.cpp
@@ -30,7 +30,7 @@
  */
 
 #include "It_vfs_jffs.h"
-static INT32 g_testNum = 20;
+static INT32 g_testNum = 2;
 
 static VOID *PthreadF01(void *arg)
 {
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_015.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_015.cpp
index 0f963dfc8a52d2d04596058185f61ee91253f719..2c1b72f47f6935a055b4427c571873e77fcee48d 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_015.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_015.cpp
@@ -48,7 +48,7 @@ static VOID *PthreadF01(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
+    INT32 bufWLen = 4 * BYTES_PER_KBYTE; // 4 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(BYTES_PER_MBYTE + 1);
@@ -224,7 +224,7 @@ static VOID *PthreadF02(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
+    INT32 bufWLen = 4 * BYTES_PER_KBYTE; // 4 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(BYTES_PER_MBYTE + 1);
@@ -400,7 +400,7 @@ static VOID *PthreadF03(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
+    INT32 bufWLen = 4 * BYTES_PER_KBYTE; // 4 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(BYTES_PER_MBYTE + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_016.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_016.cpp
index 33752c4e8e802aec1f26718ee1963dcc539a242e..fde6104ece83ff965d172c605492a8639fb3303c 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_016.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_016.cpp
@@ -49,7 +49,7 @@ static VOID *PthreadF01(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 16 * BYTES_PER_KBYTE; // 16 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -219,7 +219,7 @@ static VOID *PthreadF02(void *arg)
     DIR *dirbuf[100] = {NULL};
     struct stat buf1 = { 0 };
     struct stat buf2 = { 0 };
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 16 * BYTES_PER_KBYTE; // 16 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -390,7 +390,7 @@ static VOID *PthreadF03(void *arg)
     DIR *dirbuf[100] = {NULL};
     struct stat buf1 = { 0 };
     struct stat buf2 = { 0 };
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 16 * BYTES_PER_KBYTE; // 16 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_017.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_017.cpp
index 6600a7e2854403a4e983759de1c973727d9f27ed..63cad8e1b88bfff65dd11e94f71752bfdafb6f1b 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_017.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_017.cpp
@@ -47,7 +47,7 @@ static VOID *PthreadF01(void *arg)
     DIR *dirbuf[100] = {NULL};
     struct stat buf1 = { 0 };
     struct stat buf2 = { 0 };
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 128 * BYTES_PER_KBYTE; // 128 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -150,7 +150,7 @@ static VOID *PthreadF02(void *arg)
     DIR *dirbuf[100] = {NULL};
     struct stat buf1 = { 0 };
     struct stat buf2 = { 0 };
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 128 * BYTES_PER_KBYTE; // 128 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -256,7 +256,7 @@ static VOID *PthreadF03(void *arg)
     DIR *dirbuf[100] = {NULL};
     struct stat buf1 = { 0 };
     struct stat buf2 = { 0 };
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 128 * BYTES_PER_KBYTE; // 128 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_018.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_018.cpp
index f40476641bf2060aeacdd45c437a728af4459dc4..6c0976010e2d20cd3d93846555aa2018dfc48965 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_018.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_018.cpp
@@ -49,7 +49,7 @@ static VOID *PthreadF01(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -217,7 +217,7 @@ static VOID *PthreadF02(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -388,7 +388,7 @@ static VOID *PthreadF03(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_019.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_019.cpp
index cdfb448fa210bdf284264465e3599205201ad3bc..cd24c4cf06b20883d1b59ef76c7e7b827cd9807f 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_019.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_019.cpp
@@ -45,7 +45,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -153,7 +153,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -262,7 +262,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_020.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_020.cpp
index ff23eca55bcbaa29be7207480fac696aa96b53f0..079ada44a6c1d50690f7866c08beb8d0989e41fd 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_020.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_020.cpp
@@ -45,7 +45,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -153,7 +153,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0000";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -260,7 +260,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0000";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_021.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_021.cpp
index 4a1f53230eabb070930aaf0f5dce8ea83b6a433a..ef2ffbb77ea8366755eb4005663b41d315dd30e3 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_021.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_021.cpp
@@ -44,7 +44,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -151,7 +151,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0000";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -257,7 +257,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0000";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_022.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_022.cpp
index 6d0036623ccf27ddcaab391542115e9954598b98..59e7a066d41a450fe894b99b947393f7e697baa9 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_022.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_022.cpp
@@ -44,7 +44,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -151,7 +151,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0000";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -260,7 +260,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_023.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_023.cpp
index 77dd872ef45019c81d4cb5208c470a264d51d12c..962a5d3cbcc96fcd83a2852752d23c6e89fcb777 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_023.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_023.cpp
@@ -44,7 +44,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -153,7 +153,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0000";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -261,7 +261,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0000";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_024.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_024.cpp
index 9ad59b44cc51999dfce030cd443b4166022ab6ab..c08fb7cbfa70d60232fa80477a3f58e12d3d7461 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_024.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_024.cpp
@@ -45,7 +45,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -153,7 +153,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0000";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -260,7 +260,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0000";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_025.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_025.cpp
index 735e5276d6a7c5b8f3e0130ad13dddfe68e88181..047d1e90ea4113e7beb291c988cc60429e1058e0 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_025.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_025.cpp
@@ -44,7 +44,7 @@ static VOID *PthreadF01(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     bufW = (CHAR *)malloc(bufWLen + 1);
     ICUNIT_ASSERT_NOT_EQUAL_NULL(bufW, NULL, NULL);
@@ -107,7 +107,7 @@ static VOID *PthreadF02(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     bufW = (CHAR *)malloc(bufWLen + 1);
     ICUNIT_ASSERT_NOT_EQUAL_NULL(bufW, NULL, NULL);
@@ -170,7 +170,7 @@ static VOID *PthreadF03(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     bufW = (CHAR *)malloc(bufWLen + 1);
     ICUNIT_ASSERT_NOT_EQUAL_NULL(bufW, NULL, NULL);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_036.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_036.cpp
index a23040fd1c00a1f99de42354bd54e8563ff0f7c3..13e106f0f2e0dc3c3ca08025040f9de2a592d34c 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_036.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_036.cpp
@@ -43,7 +43,7 @@ static VOID *PthreadF01(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -147,7 +147,7 @@ static VOID *PthreadF02(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -251,7 +251,7 @@ static VOID *PthreadF03(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_038.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_038.cpp
index 93ed9ff72cd1bf7b3862d97f1ffcfa833209ebda..55fb8abe3fb6c9e8affc73581ec299d739888ae5 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_038.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_038.cpp
@@ -43,7 +43,7 @@ static VOID *PthreadF01(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -148,7 +148,7 @@ static VOID *PthreadF02(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -253,7 +253,7 @@ static VOID *PthreadF03(void *arg)
         "456789abcedfghij9876543210abcdeabcde0123456789abcedfghij9876543210abcdeabcde0123456789abcedfgh"
         "ij9876543210abcdeabcde0123456789abcedfghij9876543210lalalalalalalala";
     CHAR *bufW = NULL;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_039.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_039.cpp
index 1137fe71fec23d0bfb70fdfccbcf87d8770012ba..9d3ce6cec409cfe09ee65bdb70a2c70c23a332b3 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_039.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_039.cpp
@@ -44,7 +44,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -156,7 +156,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -267,7 +267,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_040.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_040.cpp
index 5709c906a0982ef275d0a16d4967581777330194..d1eaae8d06fcc518a7afbe4eed09d2de570d6636 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_040.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_040.cpp
@@ -44,7 +44,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -156,7 +156,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -267,7 +267,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_041.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_041.cpp
index 95b1a84d96035f14651504b0f7f92cf3e786b4e1..516ac388693c42b9b3da56c4dc1b9340e6b439eb 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_041.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_041.cpp
@@ -44,7 +44,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -156,7 +156,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -267,7 +267,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_042.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_042.cpp
index 73a96e72b91957e7d2f5feed4096a2ead5df86ed..5786640dab97c3703da17b380b9715d76171aeaf 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_042.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_042.cpp
@@ -45,7 +45,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -158,7 +158,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -270,7 +270,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_043.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_043.cpp
index d8297b09d8fa2881210367205f6726a2c0383ca0..b5d8dcf8c4a3e5f0fd0f6c6a576a4e89f9ce6021 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_043.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_043.cpp
@@ -45,7 +45,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -158,7 +158,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -270,7 +270,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_044.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_044.cpp
index 6330ae3d276466070275d4a80dd05cf1d737698c..543b261a5706cf5f1a3c11ba37dbe13186f8d18c 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_044.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_044.cpp
@@ -45,7 +45,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -158,7 +158,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -270,7 +270,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_045.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_045.cpp
index 7ab2bf69a7430587742a6549db82affebf05f7e8..0ebe9c365e48ad1fbde38fb03d99db21c90e70aa 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_045.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_045.cpp
@@ -45,7 +45,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -158,7 +158,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -270,7 +270,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_046.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_046.cpp
index 0ee85f3607180f5bf336e63b68ee28f97bebfac5..a4269f457372a03bf69e20949839b8b02130ffa0 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_046.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_046.cpp
@@ -45,7 +45,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -158,7 +158,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -270,7 +270,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_047.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_047.cpp
index 9cb764842d9be18f50a28c3b9c1c8a64b99556b8..b17c81f5f8f99bde31f6bb2975a9a3f7da1c5bf0 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_047.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_047.cpp
@@ -45,7 +45,7 @@ static VOID *PthreadF01(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -158,7 +158,7 @@ static VOID *PthreadF02(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
@@ -270,7 +270,7 @@ static VOID *PthreadF03(void *arg)
     CHAR writebuf[20] = "0123456789";
     CHAR *bufW = NULL;
     struct stat statbuf;
-    INT32 bufWLen = BYTES_PER_MBYTE;
+    INT32 bufWLen = 256 * BYTES_PER_KBYTE; // 256 KB
 
     flag = 0;
     bufW = (CHAR *)malloc(bufWLen + 1);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_052.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_052.cpp
index a4529faefd10a6a6f4731cb5a119bd99bcd971a0..fe64c53757d8dc7c9b3c95f29912b5ef31edb238 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_052.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_052.cpp
@@ -71,8 +71,6 @@ static VOID *MutiJffs05202(void *arg)
 
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_52");
 
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
-
     // file size: 1024, write size: 1024
     ret = JffsMultiWrite(pathname, 1024, 1024, O_RDWR | O_CREAT, JFFS_WR_TYPE_TEST);
     ICUNIT_GOTO_EQUAL(ret, JFFS_NO_ERROR, ret, EXIT);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_053.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_053.cpp
index 57639165c7ca9a0b9605b13771654081c63480b2..454c190ca288342804f831fa82275c0448c57190 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_053.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_053.cpp
@@ -68,7 +68,6 @@ static VOID *MutiJffs05302(void *arg)
     dprintf(" start muti_jffs_053_02  1 \n");
 
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_53");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
 
     fd = open(pathname, O_RDONLY, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_054.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_054.cpp
index b6edd4897565fdfc75fa71d661a9b9cbac4af345..0ca30aa14e113a7f7b2d90087d1b26b8827e44b0 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_054.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_054.cpp
@@ -69,7 +69,6 @@ static VOID *MutiJffs05402(void *arg)
     dprintf(" start muti_jffs_054_02  1 \n");
 
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_54");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
 
     fd = open(pathname, O_WRONLY | O_CREAT, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_055.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_055.cpp
index 083a137a7d88df2570314c0031acbfd76d707dc0..3c26506fe67967b236a5028469691c7f0aff47fd 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_055.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_055.cpp
@@ -68,7 +68,6 @@ static VOID *MutiJffs05502(void *arg)
     dprintf(" start muti_jffs_055_02  1 \n");
 
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_55");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
     fd = open(pathname, O_WRONLY | O_CREAT, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT);
 
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_056.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_056.cpp
index 69bc0f79abbab604ea9ad76dfa40cf18cbac89bb..7a3de5d9e5f618e906479416f5a5e0402079948c 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_056.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_056.cpp
@@ -69,7 +69,6 @@ static VOID *MutiJffs05602(void *arg)
 
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_56");
     strcat_s(pathname1, JFFS_STANDARD_NAME_LENGTH, "/test_56_rename");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
 
     rename(pathname, pathname1);
 
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_057.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_057.cpp
index eee55b4c830272c96d8da437fa538c008b13483b..479eeb7bcbe88600caa0318ce3172009a0708031 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_057.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_057.cpp
@@ -66,7 +66,6 @@ static VOID *MutiJffs05702(void *arg)
     dprintf(" start muti_jffs_057_02  1 \n");
 
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_57");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
 
     umount(pathname);
     mount(JFFS_DEV_PATH0, JFFS_MAIN_DIR0, JFFS_FILESYS_TYPE, 0, NULL);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_058.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_058.cpp
index c7b92b9ff043dbe1ad8325dbb6982f07306370b7..ffdc0c1153a4661d002e8e7286e134148a98938d 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_058.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_058.cpp
@@ -66,7 +66,6 @@ static VOID *MutiJffs05802(void *arg)
     CHAR pathname[JFFS_STANDARD_NAME_LENGTH] = { JFFS_PATH_NAME0 };
     dprintf(" start muti_jffs_058_02  1 \n");
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_58");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
 
     // file size: 1024, write size: 16
     ret = JffsMultiWrite(pathname, 1024, 16, O_RDWR | O_CREAT, JFFS_WR_TYPE_TEST);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_059.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_059.cpp
index bfc980c8be22fb187ecf89c3be56ecee18b437f8..909e76f2dba7d76d2756a7fa43f9555262b52959 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_059.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_059.cpp
@@ -70,7 +70,6 @@ static VOID *MutiJffs05902(void *arg)
 
     dprintf(" start muti_jffs_059_02  1 \n");
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_59");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
 
     fd = open(pathname, O_WRONLY | O_CREAT, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_060.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_060.cpp
index b6649e5eb90231735c13d0339cd4b2e9985e6716..7e23e03f42759fbcdd1f26a50cc9e211ac37da9c 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_060.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_060.cpp
@@ -70,7 +70,6 @@ static VOID *MutiJffs06002(void *arg)
 
     dprintf(" start muti_jffs_060_02  1 \n");
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_60");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
 
     fd = open(pathname, O_RDONLY | O_CREAT, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_061.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_061.cpp
index 453ff4b22c2c1bd9c96ff47436954080cb678a32..e9147dc838f31cc7af8d1d04d83690b1db286f22 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_061.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_061.cpp
@@ -70,7 +70,6 @@ static VOID *MutiJffs06102(void *arg)
 
     dprintf(" start muti_jffs_061_02  1 \n");
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_61");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
 
     fd = open(pathname, O_RDONLY | O_CREAT, HIGHEST_AUTHORITY);
     ICUNIT_GOTO_NOT_EQUAL(fd, JFFS_IS_ERROR, fd, EXIT);
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_062.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_062.cpp
index 0a213ffaf37f797d59b031d5877db6ca9413d10a..2bc777314eb763b9e914992670c40e6c95df34a5 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_062.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_062.cpp
@@ -71,7 +71,6 @@ static VOID *MutiJffs06202(void *arg)
     dprintf(" start muti_jffs_062_02  1 \n");
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_62");
     strcat_s(pathname1, JFFS_STANDARD_NAME_LENGTH, "/test_62_rename");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
 
     rename(pathname, pathname1);
 
diff --git a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_063.cpp b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_063.cpp
index 929558884e85e3521d7cb4543d8b63cbd343fb81..e192c19370322bee81bd009dd6d7c287aad9f361 100644
--- a/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_063.cpp
+++ b/testsuites/unittest/fs/jffs/pressure/It_vfs_jffs_multipthread_063.cpp
@@ -67,7 +67,6 @@ static VOID *MutiJffs06302(void *arg)
 
     dprintf(" start muti_jffs_063_02  1 \n");
     strcat_s(pathname, JFFS_STANDARD_NAME_LENGTH, "/test_63");
-    ICUNIT_GOTO_EQUAL(g_TestCnt, 0, g_TestCnt, EXIT);
 
     umount(pathname);
 
diff --git a/testsuites/unittest/fs/jffs/vfs_jffs_test.cpp b/testsuites/unittest/fs/jffs/vfs_jffs_test.cpp
index 531fed8140853085e80b308879c31482f35df2e8..ccd3ab4d719ad4552e6d182ef4b72b5a715fd428 100644
--- a/testsuites/unittest/fs/jffs/vfs_jffs_test.cpp
+++ b/testsuites/unittest/fs/jffs/vfs_jffs_test.cpp
@@ -983,9 +983,19 @@ INT32 JffsStatfsPrintf(struct statfs buf)
 
 using namespace testing::ext;
 namespace OHOS {
+#if defined(LOSCFG_USER_TEST_PRESSURE)
+pthread_mutexattr_t mutex;
+#endif
 class VfsJffsTest : public testing::Test {
 public:
-    static void SetUpTestCase(void) {}
+    static void SetUpTestCase(void)
+    {
+#if defined(LOSCFG_USER_TEST_PRESSURE)
+        pthread_mutexattr_settype(&mutex, PTHREAD_MUTEX_NORMAL);
+        pthread_mutex_init(&g_jffs2GlobalLock1, &mutex);
+        pthread_mutex_init(&g_jffs2GlobalLock2, &mutex);
+#endif
+    }
     static void TearDownTestCase(void) {}
 };
 #if defined(LOSCFG_USER_TEST_FULL)
@@ -7001,10 +7011,6 @@ HWTEST_F(VfsJffsTest, ItFsJffs535, TestSize.Level0)
 #endif
 
 #if defined(LOSCFG_USER_TEST_PRESSURE)
-pthreadMutexattrT mutex;
-PthreadMutexattrSettype(&mutex, PTHREAD_MUTEX_NORMAL);
-PthreadMutexInit(&g_jffs2GlobalLock1, &mutex);
-PthreadMutexInit(&g_jffs2GlobalLock2, &mutex);
 /* *
  * @tc.name: ItFsJffsPRESSURE_001
  * @tc.desc: function for VfsJffsTest
@@ -8481,17 +8487,6 @@ HWTEST_F(VfsJffsTest, ItFsJffsPerformance006, TestSize.Level0)
     ItFsJffsPerformance006();
 }
 
-/* *
- * @tc.name: ItFsJffsPERFORMANCE_007
- * @tc.desc: function for VfsJffsTest
- * @tc.type: FUNC
- * @tc.require: AR000EEMQ9
- */
-HWTEST_F(VfsJffsTest, ItFsJffsPerformance007, TestSize.Level0)
-{
-    ItFsJffsPerformance007();
-}
-
 /* *
  * @tc.name: ItFsJffsPERFORMANCE_008
  * @tc.desc: function for VfsJffsTest