From: Nick Piggin <piggin@cyberone.com.au>
To: Michael Frank <mhf@linuxmail.org>
Cc: ncunningham@users.sourceforge.net,
Linux Memory Management <linux-mm@kvack.org>,
Andrew Morton <akpm@osdl.org>
Subject: Re: Memory management in 2.6
Date: Tue, 20 Jan 2004 18:37:45 +1100 [thread overview]
Message-ID: <400CDAC9.40107@cyberone.com.au> (raw)
In-Reply-To: <200401201519.54619.mhf@linuxmail.org>
Michael Frank wrote:
>I had already sent a version (ti-tests) dedicated to stress testing to LKML in October.
>
>Just in case I enclose those again. README inside.
>
>I ran 2.6 again for the first time since -test9 yesterday to test
>swsusp and immeadiatly went to elevator=deadline as aio is unusable
>at high io loads which I need to break swsusp in.
>
>If you do on a 2GHz+ machine:
>
>$ti stat ub17 ddw 4 5000
>
>This gives a load avg of ~40 on a 2.4G P4 with 533MHz FSB
>
>2.4.23 behaves "proportionate" to load - at these loads mouse is jerky but has best throughput.
>
>2.6 with deadline is similar but a bit slower and the mouse is very smooth.
>
>2.6 with aio the mouse is smooth but no io throughput and io is highly intermittent. AFAICS similar to -test9.
>
>It must be recognized that these tests act in a non-anticipatory manner - this is what they are designed for ;)
>
Hmm... thats a bit alarming. I'll have to take a look at why that is so,
thanks.
(2.6 -bk and -mm kernels have some as-iosched changes by the way)
I'll also see if they might be useful as an mm regression test.
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next prev parent reply other threads:[~2004-01-20 7:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-20 4:51 Nick Piggin
2004-01-20 4:58 ` Andrew Morton
2004-01-20 5:05 ` Nick Piggin
2004-01-20 13:11 ` Roger Luethi
2004-01-20 7:00 ` Nigel Cunningham
2004-01-20 7:19 ` Michael Frank
2004-01-20 7:37 ` Nick Piggin [this message]
[not found] <20040127162346.37b75f6c.cliffw@osdl.org>
[not found] ` <40185564.8020709@cyberone.com.au>
2004-01-29 0:54 ` Memory Management " Nick Piggin
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