On 15.04.2016 07:46, Changlong Xie wrote: > Qemu does not support "info blockstats" now.
It doesn't? Mine is more than happy to accept that command:
$ x86_64-softmmu/qemu-system-x86_64 -nodefaults \
-drive if=none,id=drv0,driver=null-co \
-monitor stdio
QEMU 2.5.90 monitor - type 'help' for more information
(qemu) info blockstats
drv0: rd_bytes=0 wr_bytes=0 rd_operations=0 wr_operations=0
flush_operations=0 wr_total_time_ns=0 rd_total_time_ns=0
flush_total_time_ns=0 rd_merged=0 wr_merged=0 idle_time_ns=0
Max
> Signed-off-by: Changlong Xie <xiecl.f...@cn.fujitsu.com>
> ---
> block/block-backend.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/block/block-backend.c b/block/block-backend.c
> index d74f670..05d5d09 100644
> --- a/block/block-backend.c
> +++ b/block/block-backend.c
> @@ -49,7 +49,7 @@ struct BlockBackend {
>
> bool enable_write_cache;
>
> - /* I/O stats (display with "info blockstats"). */
> + /* I/O stats (display with { "execute": "query-blockstats" }). */
> BlockAcctStats stats;
>
> BlockdevOnError on_read_error, on_write_error;
>
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