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[Qemu-block] [PATCH v3 5/6] qemu-img: Map bench buffer
From: |
Fam Zheng |
Subject: |
[Qemu-block] [PATCH v3 5/6] qemu-img: Map bench buffer |
Date: |
Wed, 5 Jul 2017 21:36:34 +0800 |
Signed-off-by: Fam Zheng <address@hidden>
---
qemu-img.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/qemu-img.c b/qemu-img.c
index 91ad6be..fea156c 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -3875,6 +3875,7 @@ static int img_bench(int argc, char **argv)
struct timeval t1, t2;
int i;
bool force_share = false;
+ size_t buf_size;
for (;;) {
static const struct option long_options[] = {
@@ -4063,9 +4064,12 @@ static int img_bench(int argc, char **argv)
printf("Sending flush every %d requests\n", flush_interval);
}
- data.buf = blk_blockalign(blk, data.nrreq * data.bufsize);
+ buf_size = data.nrreq * data.bufsize;
+ data.buf = blk_blockalign(blk, buf_size);
memset(data.buf, pattern, data.nrreq * data.bufsize);
+ blk_dma_map(blk, data.buf, buf_size);
+
data.qiov = g_new(QEMUIOVector, data.nrreq);
for (i = 0; i < data.nrreq; i++) {
qemu_iovec_init(&data.qiov[i], 1);
@@ -4086,6 +4090,9 @@ static int img_bench(int argc, char **argv)
+ ((double)(t2.tv_usec - t1.tv_usec) / 1000000));
out:
+ if (data.buf) {
+ blk_dma_unmap(blk, data.buf);
+ }
qemu_vfree(data.buf);
blk_unref(blk);
--
2.9.4
- Re: [Qemu-block] [PATCH v3 3/6] block: Introduce bdrv_dma_map and bdrv_dma_unmap, (continued)
- Re: [Qemu-block] [PATCH v3 3/6] block: Introduce bdrv_dma_map and bdrv_dma_unmap, Stefan Hajnoczi, 2017/07/11
- Re: [Qemu-block] [PATCH v3 3/6] block: Introduce bdrv_dma_map and bdrv_dma_unmap, Paolo Bonzini, 2017/07/11
- Re: [Qemu-block] [PATCH v3 3/6] block: Introduce bdrv_dma_map and bdrv_dma_unmap, Fam Zheng, 2017/07/11
- Re: [Qemu-block] [PATCH v3 3/6] block: Introduce bdrv_dma_map and bdrv_dma_unmap, Paolo Bonzini, 2017/07/12
- Re: [Qemu-block] [PATCH v3 3/6] block: Introduce bdrv_dma_map and bdrv_dma_unmap, Stefan Hajnoczi, 2017/07/14
- Re: [Qemu-block] [PATCH v3 3/6] block: Introduce bdrv_dma_map and bdrv_dma_unmap, Paolo Bonzini, 2017/07/14
[Qemu-block] [PATCH v3 4/6] block/nvme: Implement .bdrv_dma_map and .bdrv_dma_unmap, Fam Zheng, 2017/07/05
[Qemu-block] [PATCH v3 5/6] qemu-img: Map bench buffer,
Fam Zheng <=
[Qemu-block] [PATCH v3 6/6] block: Move NVMe spec definitions to a separate header, Fam Zheng, 2017/07/05
Re: [Qemu-block] [PATCH v3 0/6] block: Add VFIO based driver for NVMe device, Paolo Bonzini, 2017/07/05
Re: [Qemu-block] [Qemu-devel] [PATCH v3 0/6] block: Add VFIO based driver for NVMe device, no-reply, 2017/07/06