From: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Rik van Riel <riel@redhat.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Eric Whitney <eric.whitney@hp.com>,
Nick Dokos <nicholas.dokos@hp.com>
Subject: Re: [patch 00/19] VM pageout scalability improvements
Date: Fri, 04 Jan 2008 12:06:12 -0500 [thread overview]
Message-ID: <1199466372.5290.37.camel@localhost> (raw)
In-Reply-To: <p73d4sh8s93.fsf@bingen.suse.de>
On Fri, 2008-01-04 at 17:34 +0100, Andi Kleen wrote:
> Lee Schermerhorn <Lee.Schermerhorn@hp.com> writes:
>
> > We can easily [he says, glibly] reproduce the hang on the anon_vma lock
>
> Is that a NUMA platform? On non x86? Perhaps you just need queued spinlocks?
We see this on both NUMA and non-NUMA. x86_64 and ia64. The basic
criteria to reproduce is to be able to run thousands [or low 10s of
thousands] of tasks, continually increasing the number until the system
just goes into reclaim. Instead of swapping, the system seems to
hang--unresponsive from the console, but with "soft lockup" messages
spitting out every few seconds...
Lee
>
> -Andi
next prev parent reply other threads:[~2008-01-04 17:05 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-02 22:41 [patch 00/19] VM pageout scalability improvements linux-kernel
2008-01-02 22:41 ` [patch 01/19] move isolate_lru_page() to vmscan.c linux-kernel
2008-01-02 22:41 ` [patch 02/19] free swap space on swap-in/activation linux-kernel
2008-01-02 22:41 ` [patch 03/19] define page_file_cache() function linux-kernel
2008-01-02 22:41 ` [patch 04/19] debugging checks for page_file_cache() linux-kernel
2008-01-02 22:41 ` [patch 05/19] Use an indexed array for LRU variables linux-kernel
2008-01-02 22:41 ` [patch 06/19] split LRU lists into anon & file sets linux-kernel
2008-01-07 9:23 ` KAMEZAWA Hiroyuki
2008-01-02 22:41 ` [patch 07/19] split anon & file LRUs for memcontrol code linux-kernel
2008-01-07 10:04 ` KAMEZAWA Hiroyuki
2008-01-07 14:10 ` Balbir Singh
2008-01-07 15:23 ` Rik van Riel
2008-01-02 22:41 ` [patch 08/19] SEQ replacement for anonymous pages linux-kernel
2008-01-02 22:41 ` [patch 09/19] add newly swapped in pages to the inactive list linux-kernel
2008-01-02 22:41 ` [patch 10/19] No Reclaim LRU Infrastructure linux-kernel
2008-01-02 22:41 ` [patch 11/19] Non-reclaimable page statistics linux-kernel
2008-01-02 22:41 ` [patch 12/19] scan noreclaim list for reclaimable pages linux-kernel
2008-01-02 22:41 ` [patch 13/19] ramfs pages are non-reclaimable linux-kernel
2008-01-02 22:41 ` [patch 14/19] SHM_LOCKED pages are nonreclaimable linux-kernel
2008-01-02 22:41 ` [patch 15/19] non-reclaimable mlocked pages linux-kernel
2008-01-02 22:42 ` [patch 16/19] mlock vma pages under mmap_sem held for read linux-kernel
2008-01-02 22:42 ` [patch 17/19] handle mlocked pages during map/unmap and truncate linux-kernel
2008-01-02 22:42 ` [patch 18/19] account mlocked pages linux-kernel
2008-01-02 22:42 ` [patch 19/19] cull non-reclaimable anon pages from the LRU at fault time linux-kernel
2008-01-03 16:52 ` [patch 00/19] VM pageout scalability improvements Lee Schermerhorn
2008-01-03 17:00 ` Rik van Riel
2008-01-03 17:13 ` Lee Schermerhorn
2008-01-03 22:00 ` Rik van Riel
2008-01-04 16:25 ` Lee Schermerhorn
2008-01-04 16:34 ` Andi Kleen
2008-01-04 16:55 ` Rik van Riel
2008-01-04 18:07 ` Larry Woodman
2008-01-04 17:06 ` Lee Schermerhorn [this message]
2008-01-07 19:07 ` Christoph Lameter
2008-01-07 19:32 ` Rik van Riel
2008-01-07 10:06 ` KAMEZAWA Hiroyuki
2008-01-07 15:18 ` Rik van Riel
2008-01-08 20:59 Rik van Riel
2008-01-10 4:39 ` Mike Snitzer
2008-01-10 15:41 ` Rik van Riel
2008-01-10 16:08 ` Mike Snitzer
2008-01-11 10:41 ` Balbir Singh
2008-01-11 15:38 ` Rik van Riel
2008-01-11 11:47 ` Balbir Singh
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