From: Andi Kleen <andi@firstfloor.org>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Nick Piggin <npiggin@suse.de>,
Christoph Lameter <clameter@sgi.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org, dkegel@google.com,
David Miller <davem@davemloft.net>,
Daniel Phillips <phillips@google.com>
Subject: Re: [RFC 0/3] Recursive reclaim (on __PF_MEMALLOC)
Date: 15 Aug 2007 16:15:35 +0200 [thread overview]
Message-ID: <p731we43muw.fsf@bingen.suse.de> (raw)
In-Reply-To: <1187183526.6114.45.camel@twins>
Peter Zijlstra <a.p.zijlstra@chello.nl> writes:
>
> Christoph's suggestion to set min_free_kbytes to 20% is ridiculous - nor
> does it solve all deadlocks :-(
A minimum enforced reclaimable non dirty threshold wouldn't be
that ridiculous though. So the memory could be used, just not
for dirty data.
His patchkit essentially turns the GFP_ATOMIC requirements
from free to easily reclaimable. I see that as an general improvement.
I remember sct talked about this many years ago and it's still
a good idea.
-Andi
WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <andi@firstfloor.org>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Nick Piggin <npiggin@suse.de>,
Christoph Lameter <clameter@sgi.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org, dkegel@google.com,
David Miller <davem@davemloft.net>,
Daniel Phillips <phillips@google.com>
Subject: Re: [RFC 0/3] Recursive reclaim (on __PF_MEMALLOC)
Date: 15 Aug 2007 16:15:35 +0200 [thread overview]
Message-ID: <p731we43muw.fsf@bingen.suse.de> (raw)
In-Reply-To: <1187183526.6114.45.camel@twins>
Peter Zijlstra <a.p.zijlstra@chello.nl> writes:
>
> Christoph's suggestion to set min_free_kbytes to 20% is ridiculous - nor
> does it solve all deadlocks :-(
A minimum enforced reclaimable non dirty threshold wouldn't be
that ridiculous though. So the memory could be used, just not
for dirty data.
His patchkit essentially turns the GFP_ATOMIC requirements
from free to easily reclaimable. I see that as an general improvement.
I remember sct talked about this many years ago and it's still
a good idea.
-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:[~2007-08-15 13:21 UTC|newest]
Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-14 14:21 [RFC 0/3] Recursive reclaim (on __PF_MEMALLOC) Christoph Lameter
2007-08-14 14:21 ` Christoph Lameter
2007-08-14 14:21 ` [RFC 1/3] Allow reclaim via __GFP_NOMEMALLOC reclaim Christoph Lameter
2007-08-14 14:21 ` Christoph Lameter
2007-08-14 14:21 ` [RFC 2/3] Use NOMEMALLOC reclaim to allow reclaim if PF_MEMALLOC is set Christoph Lameter
2007-08-14 14:21 ` Christoph Lameter
2007-08-14 14:21 ` [RFC 3/3] Test code for PF_MEMALLOC reclaim Christoph Lameter
2007-08-14 14:21 ` Christoph Lameter
2007-08-14 14:36 ` [RFC 0/3] Recursive reclaim (on __PF_MEMALLOC) Peter Zijlstra
2007-08-14 14:36 ` Peter Zijlstra
2007-08-14 15:29 ` Christoph Lameter
2007-08-14 15:29 ` Christoph Lameter
2007-08-14 19:32 ` Peter Zijlstra
2007-08-14 19:32 ` Peter Zijlstra
2007-08-14 19:41 ` Christoph Lameter
2007-08-14 19:41 ` Christoph Lameter
2007-08-15 12:22 ` Nick Piggin
2007-08-15 12:22 ` Nick Piggin
2007-08-15 13:12 ` Peter Zijlstra
2007-08-15 14:15 ` Andi Kleen [this message]
2007-08-15 14:15 ` Andi Kleen
2007-08-15 13:55 ` Peter Zijlstra
2007-08-15 14:34 ` Andi Kleen
2007-08-15 14:34 ` Andi Kleen
2007-08-15 20:32 ` Christoph Lameter
2007-08-15 20:32 ` Christoph Lameter
2007-08-15 20:29 ` Christoph Lameter
2007-08-15 20:29 ` Christoph Lameter
2007-08-16 3:29 ` Nick Piggin
2007-08-16 3:29 ` Nick Piggin
2007-08-16 20:27 ` Christoph Lameter
2007-08-16 20:27 ` Christoph Lameter
2007-08-20 3:51 ` Peter Zijlstra
2007-08-20 19:15 ` Christoph Lameter
2007-08-20 19:15 ` Christoph Lameter
2007-08-21 0:32 ` Nick Piggin
2007-08-21 0:32 ` Nick Piggin
2007-08-21 0:28 ` Nick Piggin
2007-08-21 0:28 ` Nick Piggin
2007-08-21 15:29 ` Peter Zijlstra
2007-08-23 3:02 ` Nick Piggin
2007-08-23 3:02 ` Nick Piggin
2007-09-12 22:39 ` Christoph Lameter
2007-09-12 22:39 ` Christoph Lameter
2007-09-05 9:20 ` Daniel Phillips
2007-09-05 9:20 ` Daniel Phillips
2007-09-05 10:42 ` Christoph Lameter
2007-09-05 10:42 ` Christoph Lameter
2007-09-05 11:42 ` Nick Piggin
2007-09-05 11:42 ` Nick Piggin
2007-09-05 12:14 ` Christoph Lameter
2007-09-05 12:14 ` Christoph Lameter
2007-09-05 12:19 ` Nick Piggin
2007-09-05 12:19 ` Nick Piggin
2007-09-10 19:29 ` Christoph Lameter
2007-09-10 19:29 ` Christoph Lameter
2007-09-10 19:37 ` Peter Zijlstra
2007-09-10 19:41 ` Christoph Lameter
2007-09-10 19:41 ` Christoph Lameter
2007-09-10 19:55 ` Peter Zijlstra
2007-09-10 20:17 ` Christoph Lameter
2007-09-10 20:17 ` Christoph Lameter
2007-09-10 20:48 ` Peter Zijlstra
2007-09-11 7:41 ` Nick Piggin
2007-09-11 7:41 ` Nick Piggin
2007-09-12 10:52 ` Peter Zijlstra
2007-09-12 22:47 ` Christoph Lameter
2007-09-12 22:47 ` Christoph Lameter
2007-09-13 8:19 ` Peter Zijlstra
2007-09-13 18:32 ` Christoph Lameter
2007-09-13 18:32 ` Christoph Lameter
2007-09-13 19:24 ` Peter Zijlstra
2007-09-13 19:24 ` Peter Zijlstra
2007-09-05 16:16 ` Daniel Phillips
2007-09-05 16:16 ` Daniel Phillips
2007-09-08 5:12 ` Mike Snitzer
2007-09-08 5:12 ` Mike Snitzer
2007-09-18 0:28 ` Daniel Phillips
2007-09-18 0:28 ` Daniel Phillips
2007-09-18 3:27 ` Mike Snitzer
2007-09-18 3:27 ` Mike Snitzer
2007-09-18 5:37 ` Daniel Phillips
[not found] ` <200709172211.26493.phillips@phunq.net>
2007-09-18 8:11 ` Wouter Verhelst
2007-09-18 8:11 ` Wouter Verhelst
2007-09-18 9:58 ` Peter Zijlstra
2007-09-18 9:58 ` Peter Zijlstra
2007-09-18 16:56 ` Daniel Phillips
2007-09-18 16:56 ` Daniel Phillips
2007-09-18 19:16 ` Peter Zijlstra
2007-09-18 19:16 ` Peter Zijlstra
2007-09-18 9:30 ` Peter Zijlstra
2007-09-18 9:30 ` Peter Zijlstra
2007-09-18 18:40 ` Daniel Phillips
2007-09-18 20:13 ` Mike Snitzer
2007-09-10 19:25 ` Christoph Lameter
2007-09-10 19:25 ` Christoph Lameter
2007-09-10 19:55 ` Peter Zijlstra
2007-09-10 20:22 ` Christoph Lameter
2007-09-10 20:22 ` Christoph Lameter
2007-09-10 20:48 ` Peter Zijlstra
2007-10-26 17:44 ` Pavel Machek
2007-10-26 17:44 ` Pavel Machek
2007-10-26 17:55 ` Christoph Lameter
2007-10-26 17:55 ` Christoph Lameter
2007-10-27 22:58 ` Daniel Phillips
2007-10-27 22:58 ` Daniel Phillips
2007-10-27 23:08 ` Daniel Phillips
2007-10-27 23:08 ` Daniel Phillips
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=p731we43muw.fsf@bingen.suse.de \
--to=andi@firstfloor.org \
--cc=a.p.zijlstra@chello.nl \
--cc=akpm@linux-foundation.org \
--cc=clameter@sgi.com \
--cc=davem@davemloft.net \
--cc=dkegel@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=npiggin@suse.de \
--cc=phillips@google.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.