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From: Andrea Arcangeli <andrea@suse.de>
To: Andrew Morton <akpm@zip.com.au>
Cc: Robert Love <rml@tech9.net>,
	Zwane Mwaikambo <zwane@linux.realnet.co.sz>,
	linux-kernel@vger.kernel.org
Subject: Re: 2.4.13-ac5-preempt, overflow in cached memory stat?
Date: Mon, 5 Nov 2001 18:20:47 +0100	[thread overview]
Message-ID: <20011105182047.E18319@athlon.random> (raw)
In-Reply-To: <Pine.LNX.4.33.0111051019080.6741-100000@netfinity.realnet.co.sz>, <Pine.LNX.4.33.0111051019080.6741-100000@netfinity.realnet.co.sz> <1004948146.806.4.camel@phantasy> <3BE64FE3.DBEF8E21@zip.com.au>
In-Reply-To: <3BE64FE3.DBEF8E21@zip.com.au>; from akpm@zip.com.au on Mon, Nov 05, 2001 at 12:37:55AM -0800

On Mon, Nov 05, 2001 at 12:37:55AM -0800, Andrew Morton wrote:
> Robert Love wrote:
> > 
> > > PS I know you keep hearing this, but that preempt patch makes for some
> > > damn smooth interactive performance ;)
> > 
> > I can't hear it enough :)
> > 
> 
> umm...  Look.  Sorry.  But I don't see any theoretical reason
> why interactivity should be noticeably different from the
> little patch at
> 
> http://www.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.14pre7aa2/00_lowlatency-fixes-2

indeed, the only thing that PE can really change is the mean latency but
everbody only cares about worst case latency and nominal performance,
possibly except realtime signal processing (not multimedia playback
like listening mp3).

Andrea

      parent reply	other threads:[~2001-11-05 17:22 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-11-03  9:51 2.4.13-ac5-preempt, overflow in cached memory stat? Zwane Mwaikambo
2001-11-05  7:56 ` Robert Love
2001-11-05  8:21   ` Zwane Mwaikambo
2001-11-05  8:15     ` Robert Love
2001-11-05  8:37       ` Andrew Morton
2001-11-05  9:14         ` Zwane Mwaikambo
2001-11-05 17:20         ` Andrea Arcangeli [this message]

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