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[Qemu-devel] [PATCH v2 4/4] libqos/ahci: Swap memread/write with bufread
From: |
John Snow |
Subject: |
[Qemu-devel] [PATCH v2 4/4] libqos/ahci: Swap memread/write with bufread/write |
Date: |
Fri, 1 May 2015 15:55:12 -0400 |
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;
With this patch:
real 0m4.802s
user 0m3.506s
sys 0m2.393s
Without this series:
real 0m14.171s
user 0m12.072s
sys 0m12.527s
Signed-off-by: John Snow <address@hidden>
---
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 7c23bb2..bbcb52a 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -806,7 +806,7 @@ 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);
@@ -814,7 +814,7 @@ 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);
@@ -950,7 +950,7 @@ 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);
@@ -967,7 +967,7 @@ 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 843cf72..e9b8bde 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -625,13 +625,13 @@ void ahci_io(AHCIQState *ahci, uint8_t port, uint8_t
ide_cmd,
g_assert(ptr);
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);
--
2.1.0
- [Qemu-devel] [PATCH v2 0/4] qtest: base64 r/w and faster memset, John Snow, 2015/05/01
- [Qemu-devel] [PATCH v2 2/4] qtest: Add base64 encoded read/write, John Snow, 2015/05/01
- [Qemu-devel] [PATCH v2 1/4] qtest: allow arbitrarily long sends, John Snow, 2015/05/01
- [Qemu-devel] [PATCH v2 3/4] qtest: add memset to qtest protocol, John Snow, 2015/05/01
- [Qemu-devel] [PATCH v2 4/4] libqos/ahci: Swap memread/write with bufread/write,
John Snow <=
- Re: [Qemu-devel] [PATCH v2 4/4] libqos/ahci: Swap memread/write with bufread/write, Paolo Bonzini, 2015/05/01
- Re: [Qemu-devel] [PATCH v2 4/4] libqos/ahci: Swap memread/write with bufread/write, John Snow, 2015/05/01
- Re: [Qemu-devel] [PATCH v2 4/4] libqos/ahci: Swap memread/write with bufread/write, John Snow, 2015/05/01
- Re: [Qemu-devel] [PATCH v2 4/4] libqos/ahci: Swap memread/write with bufread/write, Paolo Bonzini, 2015/05/05
- Re: [Qemu-devel] [PATCH v2 4/4] libqos/ahci: Swap memread/write with bufread/write, John Snow, 2015/05/05
- Re: [Qemu-devel] [PATCH v2 4/4] libqos/ahci: Swap memread/write with bufread/write, Paolo Bonzini, 2015/05/05
- Re: [Qemu-devel] [PATCH v2 4/4] libqos/ahci: Swap memread/write with bufread/write, John Snow, 2015/05/05