Re: [PATCH 01/10] mm: vmscan: Limit the number of pages kswapd reclaimsat each priority

From: Jiri Slaby
Date: Sat Mar 30 2013 - 18:07:22 EST


On 03/29/2013 09:22 AM, Michal Hocko wrote:
> On Thu 28-03-13 23:31:18, Jiri Slaby wrote:
>> On 03/25/2013 10:13 AM, Jiri Slaby wrote:
>>> BTW I very pray this will fix also the issue I have when I run ltp tests
>>> (highly I/O intensive, esp. `growfiles') in a VM while playing a movie
>>> on the host resulting in a stuttered playback ;).
>>
>> No, this is still terrible. I was now updating a kernel in a VM and had
>> problems to even move with cursor.
>
> :/
>
>> There was still 1.2G used by I/O cache.
>
> Could you collect /proc/zoneinfo and /proc/vmstat (say in 1 or 2s
> intervals)?

Sure:
http://www.fi.muni.cz/~xslaby/sklad/zoneinfos.tar.xz

I ran the update like 10 s after I started taking snapshots. Mplayer
immediately started complaining:

************************************************
**** Your system is too SLOW to play this! ****
************************************************
etc.

thanks,
--
js
suse labs
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