All of lore.kernel.org
 help / color / mirror / Atom feed
From: Huang, Ying <ying.huang@linux.intel.com>
To: lkp@lists.01.org
Subject: Re: [mm, page_alloc] d0164adc89: -100.0% fsmark.app_overhead
Date: Fri, 27 Nov 2015 09:14:52 +0800	[thread overview]
Message-ID: <87oaegmeer.fsf@yhuang-dev.intel.com> (raw)
In-Reply-To: <20151126132511.GG14880@techsingularity.net>

[-- Attachment #1: Type: text/plain, Size: 980 bytes --]

Hi, Mel,

Mel Gorman <mgorman@techsingularity.net> 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

WARNING: multiple messages have this Message-ID (diff)
From: "Huang\, Ying" <ying.huang@linux.intel.com>
To: Mel Gorman <mgorman@techsingularity.net>
Cc: lkp@01.org, LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Rik van Riel <riel@redhat.com>,
	Vitaly Wool <vitalywool@gmail.com>,
	David Rientjes <rientjes@google.com>,
	Christoph Lameter <cl@linux.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@suse.com>, Vlastimil Babka <vbabka@suse.cz>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [lkp] [mm, page_alloc] d0164adc89: -100.0% fsmark.app_overhead
Date: Fri, 27 Nov 2015 09:14:52 +0800	[thread overview]
Message-ID: <87oaegmeer.fsf@yhuang-dev.intel.com> (raw)
In-Reply-To: <20151126132511.GG14880@techsingularity.net> (Mel Gorman's message of "Thu, 26 Nov 2015 13:25:11 +0000")

Hi, Mel,

Mel Gorman <mgorman@techsingularity.net> 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

  parent reply	other threads:[~2015-11-27  1:14 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-26  0:56 [mm, page_alloc] d0164adc89: -100.0% fsmark.app_overhead kernel test robot
2015-11-26  0:56 ` [lkp] " kernel test robot
2015-11-26 13:25 ` Mel Gorman
2015-11-26 15:03   ` Rik van Riel
2015-11-26 15:03     ` [lkp] " Rik van Riel
2015-11-27  1:14   ` Huang, Ying [this message]
2015-11-27  1:14     ` Huang, Ying
2015-11-27 10:06     ` Mel Gorman
2015-11-30  2:14       ` Huang, Ying
2015-11-30  2:14         ` [lkp] " Huang, Ying
2015-11-30 13:02         ` Michal Hocko
2015-11-30 13:02           ` [lkp] " Michal Hocko
2015-12-01 12:23           ` Will Deacon
2015-12-01 12:23             ` [lkp] " Will Deacon
2015-12-01 14:04             ` Michal Hocko
2015-12-01 14:04               ` [lkp] " Michal Hocko
2015-12-02 11:10               ` Mel Gorman
2015-12-02 11:00         ` Mel Gorman
2015-12-02 12:00           ` Michal Hocko
2015-12-02 12:00             ` [lkp] " Michal Hocko
2015-12-02 14:08             ` Mel Gorman
2015-12-02 14:15               ` Michal Hocko
2015-12-02 14:15                 ` [lkp] " Michal Hocko
2015-12-02 14:45                 ` Mel Gorman
2015-12-03  8:46                   ` Huang, Ying
2015-12-03  8:46                     ` [lkp] " Huang, Ying
2015-12-03 10:17                     ` Mel Gorman
2015-12-04  1:53                       ` Huang, Ying
2015-12-04  1:53                         ` [lkp] " Huang, Ying
2015-12-07 16:18                         ` Michal Hocko
2015-12-07 16:18                           ` [lkp] " Michal Hocko

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87oaegmeer.fsf@yhuang-dev.intel.com \
    --to=ying.huang@linux.intel.com \
    --cc=lkp@lists.01.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.