linux-kernel - Re: [PATCH] mm: evict streaming IO cache first

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 15 Nov 2008 19:58:50 -0500
From:	Rik van Riel <riel@...hat.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
CC:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Gene Heskett <gene.heskett@...il.com>
Subject: Re: [PATCH] mm: evict streaming IO cache first

KOSAKI Motohiro wrote:
> Hi Andrew,
> 
> I think we need this patch at 2.6.28.

I agree.  I thought we would need this patch from right before
the time I wrote it, but we had no good workload to demonstrate
it at the time.

Gene Heskett found that the problem happens on his system and
the patch fixes is.

> Can this thinking get acception?

One of the reasons that I could not find a justification for
the patch is that all the benchmarks that I tried were
unaffected by it.  This makes me believe that the risk of
performance regressions is low, while the patch does fix a
real performance bug for Gene's desktop.

-- 
All rights reversed.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/