From: Ingo Molnar <mingo@elte.hu>
To: Con Kolivas <kernel@kolivas.org>
Cc: linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: Demo patch - no interactivity 2.6
Date: Wed, 26 Nov 2003 10:59:24 +0100 (CET) [thread overview]
Message-ID: <Pine.LNX.4.58.0311261055280.17204@earth> (raw)
In-Reply-To: <200311241016.08990.kernel@kolivas.org>
On Mon, 24 Nov 2003, Con Kolivas wrote:
> I created this patch for demonstration purposes.
>
> People have raised concerns about the overhead of the interactivity
> estimator in 2.6 and it's effect on throughput. Some anecdotes report
> wild accusations of 20% loss (without hard data). [...]
this claim is nonsense, agreed. The only small change in performance
should be for microbenchmark things like lmbench's lat_ctx. But this cost
is well worth it.
Ingo
prev parent reply other threads:[~2003-11-26 11:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-23 23:16 Demo patch - no interactivity 2.6 Con Kolivas
2003-11-26 9:59 ` Ingo Molnar [this message]
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