From: Jens Axboe <axboe@suse.de>
To: Andrew Morton <akpm@osdl.org>
Cc: David Chinner <dgc@sgi.com>, Neil Brown <neilb@suse.de>,
linux-kernel@vger.kernel.org
Subject: Re: RFC - how to balance Dirty+Writeback in the face of slow writeback.
Date: Fri, 18 Aug 2006 09:03:15 +0200 [thread overview]
Message-ID: <20060818070314.GE798@suse.de> (raw)
In-Reply-To: <20060817232942.c35b1371.akpm@osdl.org>
On Thu, Aug 17 2006, Andrew Morton wrote:
> It seems that the many-writers-to-different-disks workloads don't happen
> very often. We know this because
>
> a) The 2.4 performance is utterly awful, and I never saw anybody
> complain and
Talk to some of the people that used DVD-RAM devices (or other
excruciatingly slow writers) on their system, and they would disagree
violently :-)
It's been discussed here on lkml many times in the past, but that's
years behind us now. Thankfully your pdflush work got rid of that
embarassment. But it definitely does matter, to real ordinary users.
--
Jens Axboe
next prev parent reply other threads:[~2006-08-18 7:01 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-14 23:40 RFC - how to balance Dirty+Writeback in the face of slow writeback Neil Brown
2006-08-15 8:06 ` Andrew Morton
2006-08-15 23:00 ` David Chinner
2006-08-17 4:08 ` Neil Brown
2006-08-17 6:14 ` Andrew Morton
2006-08-17 12:36 ` Trond Myklebust
2006-08-17 15:14 ` Andrew Morton
2006-08-17 16:22 ` Trond Myklebust
2006-08-18 5:49 ` Andrew Morton
2006-08-18 10:43 ` Nikita Danilov
2006-08-18 0:11 ` David Chinner
2006-08-18 6:29 ` Andrew Morton
2006-08-18 7:03 ` Jens Axboe [this message]
2006-08-18 7:11 ` Andrew Morton
2006-08-18 18:57 ` Andi Kleen
2006-08-21 0:35 ` Neil Brown
2006-08-21 3:15 ` David Chinner
2006-08-21 7:24 ` Neil Brown
2006-08-21 13:51 ` Jens Axboe
2006-08-25 4:36 ` Neil Brown
2006-08-25 6:37 ` Jens Axboe
2006-08-28 1:28 ` David Chinner
2006-08-25 13:16 ` Trond Myklebust
2006-08-27 8:21 ` Neil Brown
2006-08-21 14:28 ` David Chinner
2006-08-25 5:24 ` Neil Brown
2006-08-28 1:55 ` David Chinner
2006-08-21 7:47 ` Andi Kleen
2006-08-18 7:07 ` Neil Brown
2006-08-17 22:17 ` David Chinner
2006-08-17 3:59 ` Neil Brown
2006-08-17 6:22 ` Andrew Morton
2006-08-17 8:36 ` Jens Axboe
2006-08-17 13:21 ` Trond Myklebust
2006-08-17 15:30 ` Andrew Morton
2006-08-17 16:18 ` Trond Myklebust
2006-08-18 5:34 ` Andrew Morton
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