lkml.org 
[lkml]   [2020]   [Apr]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [patch] mm, oom: stop reclaiming if GFP_ATOMIC will start failing soon
From
Date
On 2020/04/29 18:04, Michal Hocko wrote:
> Completely agreed! The in kernel OOM killer is to deal with situations
> when memory is desperately depleted without any sign of a forward
> progress. If there is a reclaimable memory then we are not there yet.
> If a workload can benefit from early oom killing based on response time
> then we have facilities to achieve that (e.g. PSI).

Can PSI work even if userspace process cannot avoid reclaimable memory
allocations (e.g. page fault, file read) is already stalling? I'm not sure
whether PSI allows responding quickly enough to "keep reclaimable memory
allocations not to reclaim" despite there is still reclaimable memory...

\
 
 \ /
  Last update: 2020-04-29 12:46    [W:0.076 / U:0.504 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site