From 91d0374a7ffbd6a9cd0ba159c9160d9f26220cf5 Mon Sep 17 00:00:00 2001 From: John Snow Date: Fri, 22 May 2015 14:13:44 -0400 Subject: [PATCH] libqos/ahci: Swap memread/write with bufread/write Where it makes sense, use the new faster primitives. For generally small reads/writes such as for the PRDT and FIS packets, stick with the more wasteful but easier to debug memread/memwrite. For ahci-test (before migration tests): With this patch: real 0m3.675s user 0m2.582s sys 0m1.718s Without any qtest protocol improvements: real 0m14.171s user 0m12.072s sys 0m12.527s Signed-off-by: John Snow Message-id: 1430864578-22072-6-git-send-email-jsnow@redhat.com --- tests/ahci-test.c | 8 ++++---- tests/libqos/ahci.c | 4 ++-- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/tests/ahci-test.c b/tests/ahci-test.c index 1a967c3724..6e3fa819e0 100644 --- a/tests/ahci-test.c +++ b/tests/ahci-test.c @@ -874,7 +874,7 @@ static void ahci_test_io_rw_simple(AHCIQState *ahci, unsigned bufsize, /* Write some indicative pattern to our buffer. */ generate_pattern(tx, bufsize, AHCI_SECTOR_SIZE); - memwrite(ptr, tx, bufsize); + bufwrite(ptr, tx, bufsize); /* Write this buffer to disk, then read it back to the DMA buffer. */ ahci_guest_io(ahci, port, write_cmd, ptr, bufsize, sector); @@ -882,7 +882,7 @@ static void ahci_test_io_rw_simple(AHCIQState *ahci, unsigned bufsize, ahci_guest_io(ahci, port, read_cmd, ptr, bufsize, sector); /*** Read back the Data ***/ - memread(ptr, rx, bufsize); + bufread(ptr, rx, bufsize); g_assert_cmphex(memcmp(tx, rx, bufsize), ==, 0); ahci_free(ahci, ptr); @@ -1018,7 +1018,7 @@ static void test_dma_fragmented(void) /* Create a DMA buffer in guest memory, and write our pattern to it. */ ptr = guest_alloc(ahci->parent->alloc, bufsize); g_assert(ptr); - memwrite(ptr, tx, bufsize); + bufwrite(ptr, tx, bufsize); cmd = ahci_command_create(CMD_WRITE_DMA); ahci_command_adjust(cmd, 0, ptr, bufsize, 32); @@ -1035,7 +1035,7 @@ static void test_dma_fragmented(void) g_free(cmd); /* Read back the guest's receive buffer into local memory */ - memread(ptr, rx, bufsize); + bufread(ptr, rx, bufsize); guest_free(ahci->parent->alloc, ptr); g_assert_cmphex(memcmp(tx, rx, bufsize), ==, 0); diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c index 95bfb3dac8..7e17bb691e 100644 --- a/tests/libqos/ahci.c +++ b/tests/libqos/ahci.c @@ -653,13 +653,13 @@ void ahci_io(AHCIQState *ahci, uint8_t port, uint8_t ide_cmd, qmemset(ptr, 0x00, bufsize); if (props->write) { - memwrite(ptr, buffer, bufsize); + bufwrite(ptr, buffer, bufsize); } ahci_guest_io(ahci, port, ide_cmd, ptr, bufsize, sector); if (props->read) { - memread(ptr, buffer, bufsize); + bufread(ptr, buffer, bufsize); } ahci_free(ahci, ptr); -- GitLab