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
WARNING: multiple messages have this Message-ID (diff)
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
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2008-01-04 17:05 UTC|newest]
Thread overview: 92+ 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 ` linux-kernel
2008-01-02 22:41 ` [patch 01/19] move isolate_lru_page() to vmscan.c linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-02 22:41 ` [patch 02/19] free swap space on swap-in/activation linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-02 22:41 ` [patch 03/19] define page_file_cache() function linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-02 22:41 ` [patch 04/19] debugging checks for page_file_cache() linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-02 22:41 ` [patch 05/19] Use an indexed array for LRU variables linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-02 22:41 ` [patch 06/19] split LRU lists into anon & file sets linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-07 9:23 ` KAMEZAWA Hiroyuki
2008-01-07 9:23 ` KAMEZAWA Hiroyuki
2008-01-02 22:41 ` [patch 07/19] split anon & file LRUs for memcontrol code linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-07 10:04 ` KAMEZAWA Hiroyuki
2008-01-07 10:04 ` KAMEZAWA Hiroyuki
2008-01-07 14:10 ` Balbir Singh
2008-01-07 14:10 ` Balbir Singh
2008-01-07 15:23 ` Rik van Riel
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 ` 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 ` linux-kernel
2008-01-02 22:41 ` [patch 10/19] No Reclaim LRU Infrastructure linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-02 22:41 ` [patch 11/19] Non-reclaimable page statistics linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-02 22:41 ` [patch 12/19] scan noreclaim list for reclaimable pages linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-02 22:41 ` [patch 13/19] ramfs pages are non-reclaimable linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-02 22:41 ` [patch 14/19] SHM_LOCKED pages are nonreclaimable linux-kernel
2008-01-02 22:41 ` linux-kernel
2008-01-02 22:41 ` [patch 15/19] non-reclaimable mlocked pages linux-kernel
2008-01-02 22:41 ` 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 ` 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 ` linux-kernel
2008-01-02 22:42 ` [patch 18/19] account mlocked pages linux-kernel
2008-01-02 22:42 ` linux-kernel
2008-01-02 22:42 ` [patch 19/19] cull non-reclaimable anon pages from the LRU at fault time linux-kernel
2008-01-02 22:42 ` linux-kernel
2008-01-02 23:17 ` [patch 00/19] VM pageout scalability - one big patch Rik van Riel
2008-01-03 3:44 ` [patch 00/19] VM pageout scalability improvements Rik van Riel
2008-01-10 2:39 ` Christoph Lameter
2008-01-10 3:14 ` Rik van Riel
2008-01-03 16:52 ` Lee Schermerhorn
2008-01-03 16:52 ` Lee Schermerhorn
2008-01-03 17:00 ` Rik van Riel
2008-01-03 17:00 ` Rik van Riel
2008-01-03 17:13 ` Lee Schermerhorn
2008-01-03 17:13 ` Lee Schermerhorn
2008-01-03 22:00 ` Rik van Riel
2008-01-03 22:00 ` Rik van Riel
2008-01-04 16:25 ` Lee Schermerhorn
2008-01-04 16:25 ` Lee Schermerhorn
2008-01-04 16:34 ` Andi Kleen
2008-01-04 16:34 ` Andi Kleen
2008-01-04 16:55 ` Rik van Riel
2008-01-04 16:55 ` Rik van Riel
2008-01-04 18:07 ` Larry Woodman
2008-01-04 18:07 ` Larry Woodman
2008-01-04 17:06 ` Lee Schermerhorn [this message]
2008-01-04 17:06 ` Lee Schermerhorn
2008-01-07 19:07 ` Christoph Lameter
2008-01-07 19:07 ` Christoph Lameter
2008-01-07 19:32 ` Rik van Riel
2008-01-07 19:32 ` Rik van Riel
2008-01-07 10:06 ` KAMEZAWA Hiroyuki
2008-01-07 10:06 ` KAMEZAWA Hiroyuki
2008-01-07 15:18 ` Rik van Riel
2008-01-07 15:18 ` Rik van Riel
-- strict thread matches above, loose matches on Subject: below --
2008-01-08 20:59 Rik van Riel
2008-01-08 20:59 ` Rik van Riel
2008-01-10 4:39 ` Mike Snitzer
2008-01-10 4:39 ` Mike Snitzer
2008-01-10 15:41 ` Rik van Riel
2008-01-10 15:41 ` Rik van Riel
2008-01-10 16:08 ` Mike Snitzer
2008-01-10 16:08 ` Mike Snitzer
2008-01-11 10:41 ` Balbir Singh
2008-01-11 10:41 ` Balbir Singh
2008-01-11 15:38 ` Rik van Riel
2008-01-11 15:38 ` Rik van Riel
2008-01-11 11:47 ` Balbir Singh
2008-01-11 11:47 ` Balbir Singh
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=1199466372.5290.37.camel@localhost \
--to=lee.schermerhorn@hp.com \
--cc=andi@firstfloor.org \
--cc=eric.whitney@hp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=nicholas.dokos@hp.com \
--cc=riel@redhat.com \
/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.