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[Qemu-block] [PATCH v6 6/9] qemu-img: Map bench buffer
From: |
Fam Zheng |
Subject: |
[Qemu-block] [PATCH v6 6/9] qemu-img: Map bench buffer |
Date: |
Tue, 16 Jan 2018 14:08:58 +0800 |
Signed-off-by: Fam Zheng <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
---
qemu-img.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/qemu-img.c b/qemu-img.c
index 68b375f998..28d0e4e9f8 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -3862,6 +3862,7 @@ 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[] = {
@@ -4050,9 +4051,12 @@ 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_register_buf(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);
@@ -4073,6 +4077,9 @@ static int img_bench(int argc, char **argv)
+ ((double)(t2.tv_usec - t1.tv_usec) / 1000000));
out:
+ if (data.buf) {
+ blk_unregister_buf(blk, data.buf);
+ }
qemu_vfree(data.buf);
blk_unref(blk);
--
2.14.3
- [Qemu-block] [PATCH v6 0/9] block: Add VFIO based driver for NVMe device, Fam Zheng, 2018/01/16
- [Qemu-block] [PATCH v6 1/9] stubs: Add stubs for ram block API, Fam Zheng, 2018/01/16
- [Qemu-block] [PATCH v6 2/9] util: Introduce vfio helpers, Fam Zheng, 2018/01/16
- [Qemu-block] [PATCH v6 3/9] block: Add VFIO based NVMe driver, Fam Zheng, 2018/01/16
- [Qemu-block] [PATCH v6 4/9] block: Introduce buf register API, Fam Zheng, 2018/01/16
- [Qemu-block] [PATCH v6 5/9] block/nvme: Implement .bdrv_(un)register_buf, Fam Zheng, 2018/01/16
- [Qemu-block] [PATCH v6 6/9] qemu-img: Map bench buffer,
Fam Zheng <=
- [Qemu-block] [PATCH v6 7/9] block: Move NVMe constants to a separate header, Fam Zheng, 2018/01/16
- [Qemu-block] [PATCH v6 8/9] docs: Add section for NVMe VFIO driver, Fam Zheng, 2018/01/16
- [Qemu-block] [PATCH v6 9/9] qapi: Add NVMe driver options to the schema, Fam Zheng, 2018/01/16
- Re: [Qemu-block] [PATCH v6 0/9] block: Add VFIO based driver for NVMe device, Stefan Hajnoczi, 2018/01/22