Re: [LKP] [lkp] [mm, oom] faad2185f4: vm-scalability.throughput -11.8% regression

From	Aaron Lu <aaron.lu@intel.com>
Newsgroups	linux.kernel
Subject	Re: [LKP] [lkp] [mm, oom] faad2185f4: vm-scalability.throughput -11.8% regression
Date	2016-04-29 11:00 +0200
Message-ID	<rtcrg-2XJ-11@gated-at.bofh.it> (permalink)
References	(5 earlier) <rstNw-7b3-13@gated-at.bofh.it> <rsMwN-642-3@gated-at.bofh.it> <rsPXJ-hT-27@gated-at.bofh.it> <rsQK6-WE-17@gated-at.bofh.it> <rsSiT-2fh-17@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Thu, Apr 28, 2016 at 01:21:35PM +0200, Michal Hocko wrote:
> All of them are order-2 and this was a known problem for "mm, oom:
> rework oom detection" commit and later should make it much more
> resistant to failures for higher (!costly) orders. So I would definitely
> encourage you to retest with the current _complete_ mmotm tree.

OK, will run the test on this branch:
https://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git since-4.5
with head commit:
commit 81cc2e6f1e8bd81ebc7564a3cd3797844ee1712e
Author: Michal Hocko <mhocko@suse.com>
Date:   Thu Apr 28 12:03:24 2016 +0200

    drm/amdgpu: make amdgpu_mn_get wait for mmap_sem killable

Please let me know if this isn't right.

Thread

Re: [LKP] [lkp] [mm, oom] faad2185f4: vm-scalability.throughput  -11.8% regression Michal Hocko <mhocko@kernel.org> - 2016-04-28 13:30 +0200
  Re: [LKP] [lkp] [mm, oom] faad2185f4: vm-scalability.throughput  -11.8% regression Aaron Lu <aaron.lu@intel.com> - 2016-04-29 11:00 +0200
    Re: [LKP] [lkp] [mm, oom] faad2185f4: vm-scalability.throughput  -11.8% regression Michal Hocko <mhocko@kernel.org> - 2016-04-29 11:30 +0200
      Re: [LKP] [lkp] [mm, oom] faad2185f4: vm-scalability.throughput  -11.8% regression Aaron Lu <aaron.lu@intel.com> - 2016-04-29 15:00 +0200
        Re: [LKP] [lkp] [mm, oom] faad2185f4: vm-scalability.throughput  -11.8% regression Michal Hocko <mhocko@kernel.org> - 2016-04-29 15:10 +0200

csiph-web