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qemu-img: Map bench buffer 

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20180116060901.17413-7-famz@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
This commit is contained in:
Fam Zheng 2018-01-16 14:08:58 +08:00
parent 9ed616129e
commit 79d465839f
1 changed files with 8 additions and 1 deletions
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9
qemu-img.c
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@ -3862,6 +3862,7 @@ static int img_bench(int argc, char **argv)
struct timeval t1, t2; struct timeval t1, t2;
int i; int i;
bool force_share = false; bool force_share = false;
size_t buf_size;
for (;;) { for (;;) {
static const struct option long_options[] = { 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); 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); memset(data.buf, pattern, data.nrreq * data.bufsize);
blk_register_buf(blk, data.buf, buf_size);
data.qiov = g_new(QEMUIOVector, data.nrreq); data.qiov = g_new(QEMUIOVector, data.nrreq);
for (i = 0; i < data.nrreq; i++) { for (i = 0; i < data.nrreq; i++) {
qemu_iovec_init(&data.qiov[i], 1); 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)); + ((double)(t2.tv_usec - t1.tv_usec) / 1000000));
out: out:
if (data.buf) {
blk_unregister_buf(blk, data.buf);
}
qemu_vfree(data.buf); qemu_vfree(data.buf);
blk_unref(blk); blk_unref(blk);