Re: [PATCH 1/2] stat: report zone reset count only when zonemode is set to zbd

On Oct 08, 2025 / 08:18, Jens Axboe wrote:
> On 10/8/25 3:48 AM, Shin'ichiro Kawasaki wrote:
> > Currently, fio reports the zone reset count regardless of whether the
> > zbd zonemode is specified. Reporting the zone reset count lacking the
> > zbd zonemode is irrelevant and unnecessary.
> > 
> > Suppress the zone reset count report unless the zbd zonemode is
> > specified. For that purpose, introduce the new flag "count_zone_resets"
> > to the struct thread_stat. To maintain 32-bit alignment of the struct,
> > repurpose the existing "pad3" field to allocate the flag. To group the
> > related fields together, move the field "nr_zone_resets" and
> > "latency_depth" within the struct. Make corresponding adjustments in the
> > relevant functions fio_server_send_ts() and convert_ts(). Set the flag
> > count_zone_resets only when the zbd zonemode is set, and the workload is
> > write or trim. Refer to the flag in show_ddir_status() to determine if
> > the zone reset count should be reported. Also refer to the flag in
> > sum_thread_stats() to decide if the nr_zone_resets field should be
> > summed up.
> 
> This one needs a FIO_SERVER_VER increment as it's modifying thread_stat.

Ah, I see, FIO_SERVER_VER should be incremented when data structures used
in server.h changes. Will send out v2. Thanks.