Re: [lkp] [mm, page_alloc] d0164adc89: -100.0% fsmark.app_overhead

From: Huang\, Ying
Date: Thu Nov 26 2015 - 20:15:53 EST


Hi, Mel,

Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> writes:

> On Thu, Nov 26, 2015 at 08:56:12AM +0800, kernel test robot wrote:
>> FYI, we noticed the below changes on
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> commit d0164adc89f6bb374d304ffcc375c6d2652fe67d ("mm, page_alloc:
>> distinguish between being unable to sleep, unwilling to sleep and
>> avoiding waking kswapd")
>>
>> Note: the testing machine is a virtual machine with only 1G memory.
>>
>
> I'm not actually seeing any problem here. Is this a positive report or
> am I missing something obvious?

Sorry the email subject is generated automatically and I forget to
change it to some meaningful stuff before sending out. From the testing
result, we found the commit make the OOM possibility increased from 0%
to 100% on this machine with small memory. I also added proc-vmstat
information data too to help diagnose it.

Best Regards,
Huang, Ying
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