From: Tejun Heo <htejun@gmail.com>
To: Michal Hocko <mhocko@kernel.org>
Cc: Christoph Lameter <cl@linux.com>,
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
torvalds@linux-foundation.org,
David Rientjes <rientjes@google.com>,
oleg@redhat.com, kwalker@redhat.com, akpm@linux-foundation.org,
hannes@cmpxchg.org, vdavydov@parallels.com, skozina@redhat.com,
mgorman@suse.de, riel@redhat.com
Subject: Re: [PATCH] mm,vmscan: Use accurate values for zone_reclaimable() checks
Date: Fri, 23 Oct 2015 03:42:26 +0900 [thread overview]
Message-ID: <20151022184226.GA19289@mtj.duckdns.org> (raw)
In-Reply-To: <20151022154922.GG26854@dhcp22.suse.cz>
On Thu, Oct 22, 2015 at 05:49:22PM +0200, Michal Hocko wrote:
> I am confused. What makes rescuer to not run? Nothing seems to be
> hogging CPUs, we are just out of workers which are loopin in the
> allocator but that is preemptible context.
It's concurrency management. Workqueue thinks that the pool is making
positive forward progress and doesn't schedule anything else for
execution while that work item is burning cpu cycles.
Thanks.
--
tejun
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next prev parent reply other threads:[~2015-10-22 18:42 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-21 12:26 [PATCH] mm,vmscan: Use accurate values for zone_reclaimable() checks Tetsuo Handa
2015-10-21 13:03 ` Michal Hocko
2015-10-21 14:22 ` Christoph Lameter
2015-10-21 14:33 ` Michal Hocko
2015-10-21 14:49 ` Christoph Lameter
2015-10-21 14:55 ` Michal Hocko
2015-10-21 15:39 ` Tetsuo Handa
2015-10-21 17:16 ` Christoph Lameter
2015-10-22 11:37 ` Tetsuo Handa
2015-10-22 13:39 ` Christoph Lameter
2015-10-22 14:09 ` Tejun Heo
2015-10-22 14:21 ` Tejun Heo
2015-10-22 14:23 ` Christoph Lameter
2015-10-22 14:24 ` Tejun Heo
2015-10-22 14:25 ` Christoph Lameter
2015-10-22 14:33 ` Tejun Heo
2015-10-22 14:41 ` Christoph Lameter
2015-10-22 15:14 ` Tejun Heo
2015-10-23 4:26 ` Tejun Heo
2015-11-02 15:01 ` Michal Hocko
2015-11-02 19:20 ` Tejun Heo
2015-11-03 2:32 ` Tetsuo Handa
2015-11-03 19:43 ` Tejun Heo
2015-11-05 14:59 ` Tetsuo Handa
2015-11-05 17:45 ` Christoph Lameter
2015-11-06 0:16 ` Tejun Heo
2015-11-11 15:44 ` Michal Hocko
2015-11-11 16:03 ` Michal Hocko
2015-10-22 14:22 ` Christoph Lameter
2015-10-22 15:06 ` Michal Hocko
2015-10-22 15:15 ` Tejun Heo
2015-10-22 15:33 ` Christoph Lameter
2015-10-23 8:37 ` Michal Hocko
2015-10-23 11:43 ` Make vmstat deferrable again (was Re: [PATCH] mm,vmscan: Use accurate values for zone_reclaimable() checks) Christoph Lameter
2015-10-23 12:07 ` Sergey Senozhatsky
2015-10-23 14:12 ` Christoph Lameter
2015-10-23 14:49 ` Sergey Senozhatsky
2015-10-23 16:10 ` Christoph Lameter
2015-10-22 15:35 ` [PATCH] mm,vmscan: Use accurate values for zone_reclaimable() checks Michal Hocko
2015-10-22 15:37 ` Tejun Heo
2015-10-22 15:49 ` Michal Hocko
2015-10-22 18:42 ` Tejun Heo [this message]
2015-10-22 21:42 ` [PATCH] mm,vmscan: Use accurate values for zone_reclaimable()checks Tetsuo Handa
2015-10-22 22:47 ` Tejun Heo
2015-10-23 8:36 ` Michal Hocko
2015-10-23 10:37 ` Tejun Heo
2015-10-23 8:33 ` [PATCH] mm,vmscan: Use accurate values for zone_reclaimable() checks Michal Hocko
2015-10-23 10:36 ` Tejun Heo
2015-10-23 11:11 ` Michal Hocko
2015-10-23 12:25 ` Tetsuo Handa
2015-10-23 18:23 ` Tejun Heo
2015-10-25 10:52 ` Tetsuo Handa
2015-10-25 22:47 ` Tejun Heo
2015-10-27 9:22 ` Michal Hocko
2015-10-27 10:55 ` Tejun Heo
2015-10-27 12:07 ` Michal Hocko
2015-10-23 18:21 ` Tejun Heo
2015-10-27 9:16 ` Michal Hocko
2015-10-27 10:52 ` Tejun Heo
2015-10-27 11:07 ` [PATCH] mm,vmscan: Use accurate values for zone_reclaimable()checks Tetsuo Handa
2015-10-27 11:30 ` Tejun Heo
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