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Re: [Qemu-devel] [PATCH v2 1/5] qemu-io: Account IO by aio_read and aio_
From: |
Benoît Canet |
Subject: |
Re: [Qemu-devel] [PATCH v2 1/5] qemu-io: Account IO by aio_read and aio_write |
Date: |
Mon, 10 Feb 2014 12:49:56 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Le Friday 07 Feb 2014 à 18:43:29 (+0800), Fam Zheng a écrit :
> This will enable accounting of aio requests issued from qemu-io aio
> read/write commands.
>
> Signed-off-by: Fam Zheng <address@hidden>
> ---
> qemu-io-cmds.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
> index f1de24c..d68eb23 100644
> --- a/qemu-io-cmds.c
> +++ b/qemu-io-cmds.c
> @@ -1346,6 +1346,7 @@ out:
> }
>
> struct aio_ctx {
> + BlockDriverState *bs;
> QEMUIOVector qiov;
> int64_t offset;
> char *buf;
> @@ -1353,6 +1354,7 @@ struct aio_ctx {
> int vflag;
> int Cflag;
> int Pflag;
> + BlockAcctCookie acct;
> int pattern;
> struct timeval t1;
> };
> @@ -1370,6 +1372,8 @@ static void aio_write_done(void *opaque, int ret)
> goto out;
> }
>
> + bdrv_acct_done(ctx->bs, &ctx->acct);
> +
> if (ctx->qflag) {
> goto out;
> }
> @@ -1407,6 +1411,8 @@ static void aio_read_done(void *opaque, int ret)
> g_free(cmp_buf);
> }
>
> + bdrv_acct_done(ctx->bs, &ctx->acct);
> +
> if (ctx->qflag) {
> goto out;
> }
> @@ -1462,6 +1468,7 @@ static int aio_read_f(BlockDriverState *bs, int argc,
> char **argv)
> int nr_iov, c;
> struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
>
> + ctx->bs = bs;
> while ((c = getopt(argc, argv, "CP:qv")) != EOF) {
> switch (c) {
> case 'C':
> @@ -1515,6 +1522,7 @@ static int aio_read_f(BlockDriverState *bs, int argc,
> char **argv)
> }
>
> gettimeofday(&ctx->t1, NULL);
> + bdrv_acct_start(bs, &ctx->acct, ctx->qiov.size, BDRV_ACCT_READ);
> bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov,
> ctx->qiov.size >> 9, aio_read_done, ctx);
> return 0;
> @@ -1558,6 +1566,7 @@ static int aio_write_f(BlockDriverState *bs, int argc,
> char **argv)
> int pattern = 0xcd;
> struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
>
> + ctx->bs = bs;
> while ((c = getopt(argc, argv, "CqP:")) != EOF) {
> switch (c) {
> case 'C':
> @@ -1607,6 +1616,7 @@ static int aio_write_f(BlockDriverState *bs, int argc,
> char **argv)
> }
>
> gettimeofday(&ctx->t1, NULL);
> + bdrv_acct_start(bs, &ctx->acct, ctx->qiov.size, BDRV_ACCT_WRITE);
> bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov,
> ctx->qiov.size >> 9, aio_write_done, ctx);
> return 0;
> --
> 1.8.5.4
>
Reviewed-by: Benoit Canet <address@hidden>
- [Qemu-devel] [PATCH v2 0/5] qemu-iotests: Test case for IO throttling, Fam Zheng, 2014/02/07
- [Qemu-devel] [PATCH v2 1/5] qemu-io: Account IO by aio_read and aio_write, Fam Zheng, 2014/02/07
- Re: [Qemu-devel] [PATCH v2 1/5] qemu-io: Account IO by aio_read and aio_write,
Benoît Canet <=
- [Qemu-devel] [PATCH v2 2/5] qtest: Add scripts/qtest/qtest.py, Fam Zheng, 2014/02/07
- [Qemu-devel] [PATCH v2 3/5] qemu-iotests: Add VM method qtest() to iotests.py, Fam Zheng, 2014/02/07
- [Qemu-devel] [PATCH v2 4/5] qemu-iotests: Allow caller to disable underscore convertion for qmp, Fam Zheng, 2014/02/07
- [Qemu-devel] [PATCH v2 5/5] qemu-iotests: Add 080 for IO throttling, Fam Zheng, 2014/02/07