From: Nick Piggin <piggin@cyberone.com.au>
To: Nick Piggin <piggin@cyberone.com.au>
Cc: rwhron@earthlink.net, akpm@digeo.com, linux-kernel@vger.kernel.org
Subject: Re: [BENCHMARK] 2.5.68 and 2.5.68-mm2
Date: Sat, 26 Apr 2003 13:11:46 +1000 [thread overview]
Message-ID: <3EA9F8F2.3070303@cyberone.com.au> (raw)
In-Reply-To: <3EA9ECFB.5050407@cyberone.com.au>
Nick Piggin wrote:
>
>
> rwhron@earthlink.net wrote:
>
>>> The benchmark is hitting a pathologoical case. Yeah, it's a
>>> problem, but
>>> it's not as bad as tiobench indicates.
>>>
> Its interesting that deadline does so much better for this case
> though. I wonder if any other differences in mm could cause it?
> A run with deadline on mm would be nice to see. IIRC my tests
> showed AS doing as well or better than deadline in smp tiobench.
> The bad random read performance is a problem too, because the
> fragmentation should only add to the randomness.
> I'll have to investigate this further.
>
Are you using TCQ by any chance? If so, what do the results look
like with TCQ off?
next prev parent reply other threads:[~2003-04-26 3:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-26 1:58 [BENCHMARK] 2.5.68 and 2.5.68-mm2 rwhron
2003-04-26 2:20 ` Nick Piggin
2003-04-26 3:11 ` Nick Piggin [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-04-30 0:59 rwhron
2003-05-01 18:10 ` Nick Piggin
2003-04-28 21:58 rwhron
2003-04-25 23:09 rwhron
2003-04-25 23:25 ` Andrew Morton
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