2017-04-13 18:05 GMT+08:00 Roman Mamedov <rm@xxxxxxxxxxx>:
> On Thu, 13 Apr 2017 11:47:29 +0200
> Reindl Harald <h.reindl@xxxxxxxxxxxxx> wrote:
>
>> and?
>>
>> you said it is at 200000
>> i showed you how to reduce it to 50000 or whatever you want
>
> The point is that this should automatically adjust between 1000 and 200000 (on
> default settings) according to other IO in the system. But since April 2015
> this automatic tuning got broken and has worsened significantly for some
> scenarios. The solution should be not that "well you're SOL and now always
> have to hand-tune it", but to keep reporting your experience and try out the
> proposed fixes so the prior automated adjustment is reimplemented, or baring
> that, to revert the behavior change on your systems (already tried that just
> now on my kernel build, it still reverts cleanly).
>
> --
> With respect,
> Roman
hi:
RHEL 7 use kernel 3.10 so it should not be affected. at least
RHEL 7.2 I didn't notice this kind of problem. maybe RHEL 7.3 pull
some feature/patch from upstream kernel. I will try to report to
redhat bugzilla to see if they can fix these.
thanks again for all the hints and help!!
Regards,
tbskyd
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