Commit 79d46583 authored by Fam Zheng's avatar Fam Zheng
Browse files

qemu-img: Map bench buffer 



Signed-off-by: default avatarFam Zheng <famz@redhat.com>
Reviewed-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20180116060901.17413-7-famz@redhat.com>
Signed-off-by: default avatarFam Zheng <famz@redhat.com>
parent 9ed61612

qemu-img.c

+8 −1
Original line number Diff line number Diff line
@@ -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);