set DIO_ALIGN_SIZE from 512 to 4096

deps/oblib/src/lib/ob_define.h

@@ -1874,7 +1874,7 @@ enum ObJITEnableMode {
 
 #define DATABUFFER_SERIALIZE_INFO data_buffer_.get_data(), data_buffer_.get_capacity(), data_buffer_.get_position()
 
-#define DIO_ALIGN_SIZE 512
+#define DIO_ALIGN_SIZE 4096
 #define DIO_READ_ALIGN_SIZE 4096
 #define DIO_ALLOCATOR_CACHE_BLOCK_SIZE (OB_DEFAULT_MACRO_BLOCK_SIZE + DIO_READ_ALIGN_SIZE)
 #define CORO_INIT_PRIORITY 120

src/share/redolog/ob_log_disk_manager.cpp

@@ -910,9 +910,7 @@ int ObLogDiskManager::copy_file_content(
   int64_t read_len = 0;
   int64_t write_len = 0;
   int64_t offset = 0;
-  // CLOG and ILOG DIO aligned size are all CLOG_DIO_ALIGN_SIZE
-  // SLOG DIO aligned size is DIO_ALIGN_SIZE
-  int64_t align_size = SLOG_WRITE_POOL == pool_type_ ? DIO_ALIGN_SIZE : CLOG_DIO_ALIGN_SIZE;
+  const int64_t align_size = DIO_ALIGN_SIZE;
 
   if (!src_fd.is_valid() || file_offset < 0) {
     ret = OB_INVALID_ARGUMENT;

src/share/redolog/ob_log_file_store.cpp

@@ -483,7 +483,7 @@ int ObLogFileStore::read(void* buf, int64_t count, int64_t offset, int64_t& read
             event_sz += rd_size;
           } else if (event_res == 0) {  // read nothing from file
             ret = OB_READ_NOTHING;
-          } else if (event_res > 0 && event_res < rd_size && (0 == event_res % DIO_ALIGN_SIZE)) {  // partial complete
+          } else if (event_res > 0 && event_res < rd_size) {  // partial complete
             event_sz += event_res;
             COMMON_LOG(INFO, "re-submit read", K(i), K(event_res), K(rd_size), K(event_sz), K(count));
           } else {
@@ -1021,8 +1021,7 @@ int ObLogFileStore::process_io_getevents(int64_t& submitted, io_context_t ctx, s
         } else if (event_res == wr_info->size_) {  // full complete
           wr_info->complete_ = true;
           wr_info->ret_ = OB_SUCCESS;
-        } else if (event_res > 0 && event_res < wr_info->size_ &&
-                   (0 == event_res % DIO_ALIGN_SIZE)) {  // partial complete
+        } else if (event_res > 0 && event_res < wr_info->size_) {  // partial complete
           wr_info->buf_ = wr_info->buf_ + event_res;
           wr_info->size_ -= event_res;
           wr_info->offset_ += event_res;

unittest/storage/blocksstable/test_data_buffer.cpp

@@ -56,9 +56,9 @@ TEST_F(TestDataBuffer, test_ObSelfBufferWriter)
 {
   int ret = OB_SUCCESS;
   int64_t big_size = 256L * 1024L * 1024L * 1024L * 1024L * 1024L;  // 256TB
-  ObSelfBufferWriter buf_align(1024, ObModIds::TEST, true);
+  ObSelfBufferWriter buf_align(4096, ObModIds::TEST, true);
   ObSelfBufferWriter buf_not_align(0, ObModIds::TEST, false);
-  ret = buf_align.ensure_space(1024);
+  ret = buf_align.ensure_space(4096);
   ASSERT_EQ(ret, OB_SUCCESS);
 
   ret = buf_align.ensure_space(4097);