From: Andrew Morton <akpm@osdl.org>
To: Nathan Scott <nathans@sgi.com>
Cc: piggin@cyberone.com.au, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-xfs@oss.sgi.com
Subject: Re: Page cache write performance issue
Date: Wed, 13 Oct 2004 00:02:06 -0700 [thread overview]
Message-ID: <20041013000206.680132ad.akpm@osdl.org> (raw)
In-Reply-To: <20041013063955.GA2079@frodo>
Nathan Scott <nathans@sgi.com> wrote:
>
> Hi Andrew,
>
> On Tue, Oct 12, 2004 at 11:19:45PM -0700, Andrew Morton wrote:
> > Nathan Scott <nathans@sgi.com> wrote:
> > >
> > > So, any ideas what happened to 2.6.9?
> >
> > Does reverting the below fix it up?
>
> Reverting that one improves things slightly - I move up from
> ~4MB/sec to ~17MB/sec; thats just under a third of the 2.6.8
> numbers I was seeing though, unfortunately.
>
Well something else if fishy: how can you possibly achieve only 4MB/sec?
Using floppy disks or something?
Does the same happen on ext2?
It's exactly a 500MB write on a 1000MB machine, yes?
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@osdl.org>
To: Nathan Scott <nathans@sgi.com>
Cc: piggin@cyberone.com.au, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-xfs@oss.sgi.com
Subject: Re: Page cache write performance issue
Date: Wed, 13 Oct 2004 00:02:06 -0700 [thread overview]
Message-ID: <20041013000206.680132ad.akpm@osdl.org> (raw)
In-Reply-To: <20041013063955.GA2079@frodo>
Nathan Scott <nathans@sgi.com> wrote:
>
> Hi Andrew,
>
> On Tue, Oct 12, 2004 at 11:19:45PM -0700, Andrew Morton wrote:
> > Nathan Scott <nathans@sgi.com> wrote:
> > >
> > > So, any ideas what happened to 2.6.9?
> >
> > Does reverting the below fix it up?
>
> Reverting that one improves things slightly - I move up from
> ~4MB/sec to ~17MB/sec; thats just under a third of the 2.6.8
> numbers I was seeing though, unfortunately.
>
Well something else if fishy: how can you possibly achieve only 4MB/sec?
Using floppy disks or something?
Does the same happen on ext2?
It's exactly a 500MB write on a 1000MB machine, yes?
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next prev parent reply other threads:[~2004-10-13 7:03 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-13 5:44 Page cache write performance issue Nathan Scott
2004-10-13 5:44 ` Nathan Scott
2004-10-13 6:19 ` Andrew Morton
2004-10-13 6:19 ` Andrew Morton
2004-10-13 6:39 ` Nathan Scott
2004-10-13 6:39 ` Nathan Scott
2004-10-13 7:02 ` Andrew Morton [this message]
2004-10-13 7:02 ` Andrew Morton
2004-10-13 7:23 ` Nathan Scott
2004-10-13 7:23 ` Nathan Scott
2004-10-13 8:15 ` Nick Piggin
2004-10-13 8:15 ` Nick Piggin
2004-10-13 8:39 ` Andrew Morton
2004-10-13 8:39 ` Andrew Morton
2004-10-14 0:53 ` Nathan Scott
2004-10-14 0:53 ` Nathan Scott
2004-10-14 3:20 ` Andrew Morton
2004-10-14 3:20 ` Andrew Morton
2004-10-14 7:16 ` Nathan Scott
2004-10-14 7:16 ` Nathan Scott
2004-10-14 7:31 ` Nick Piggin
2004-10-14 7:31 ` Nick Piggin
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