On Fri, 16 Nov 2018, Jens Axboe wrote:
> On 11/16/18 6:55 AM, Mike Snitzer wrote:
> > On Fri, Nov 16 2018 at 4:11am -0500,
> > Christoph Hellwig wrote:
> >
> >> On Fri, Nov 16, 2018 at 01:04:19AM +0100, Mikulas Patocka wrote:
> >>> Device mapper was converted to percpu inflight counters. In
On 11/16/18 6:55 AM, Mike Snitzer wrote:
> On Fri, Nov 16 2018 at 4:11am -0500,
> Christoph Hellwig wrote:
>
>> On Fri, Nov 16, 2018 at 01:04:19AM +0100, Mikulas Patocka wrote:
>>> Device mapper was converted to percpu inflight counters. In order to
>>> display the correct values in the
On Fri, Nov 16 2018 at 4:11am -0500,
Christoph Hellwig wrote:
> On Fri, Nov 16, 2018 at 01:04:19AM +0100, Mikulas Patocka wrote:
> > Device mapper was converted to percpu inflight counters. In order to
> > display the correct values in the "inflight" sysfs file and in
> > /proc/diskstats, we
On Fri, Nov 16, 2018 at 01:04:19AM +0100, Mikulas Patocka wrote:
> Device mapper was converted to percpu inflight counters. In order to
> display the correct values in the "inflight" sysfs file and in
> /proc/diskstats, we need a custom callback that sums the percpu counters.
>
> The function
Device mapper was converted to percpu inflight counters. In order to
display the correct values in the "inflight" sysfs file and in
/proc/diskstats, we need a custom callback that sums the percpu counters.
The function part_round_stats calculates the number of in-flight I/Os
every jiffy and uses
