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From: Shawn Starr <Shawn.Starr@Home.net>
To: Andrew Morton <andrewm@uow.edu.au>
Cc: Shawn Starr <Shawn.Starr@Home.com>, Chris Mason <mason@suse.com>,
	Gregory Maxwell <greg@linuxpower.cx>,
	linux-kernel@vger.kernel.org
Subject: Re: Kernel 2.4.x and 2.4.1-preX - Higher latency then 2.2.xkernels?
Date: Sat, 27 Jan 2001 22:59:59 -0500	[thread overview]
Message-ID: <3A73993F.DA35B57E@Home.net> (raw)
In-Reply-To: <186870000.980100593@tiny> <3A6B6FDE.93AF69CC@Home.net> <3A72820A.1488BDC@uow.edu.au> <3A7280F5.F122FE35@Home.com> <3A738A36.F6294623@Home.net> <3A739205.7C71EF89@uow.edu.au>

It should also be noted, that while using GCC and other tasks, the latency has returned to 2.2
levels from my point. Before. If you want to me to do any testing I can do that.

I applied the timepegs patch:

Kernel timepegs enabled. See http://www.uow.edu.au/~andrewm/linux/

Shawn.

> >
> > Andrew, the patch HAS made a difference. For example, while untaring glibc-2.2.1.tar.gz the
> > system was not sluggish (mouse movements in X) etc.
> >
> > Seems to be a go for latency improvements on this system.
>
> hmm..  OK, thanks.
>
> Chris, this seems to be a worthwhile improvement to mainstream
> reiserfs, independent of the low-latency thing.   You can
> probably achieve 10 milliseconds with just a few lines of
> code - a subset of the patch which Shawn tested. (Unless you
> were planning on magical algorithmic improvements...).
>
> I'm all set up to generate those few lines of code, so
> I'll propose a patch later this week.
>
> -

-
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  reply	other threads:[~2001-01-28  4:00 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-01-20 19:50 Kernel 2.4.x and 2.4.1-preX - Higher latency then 2.2.x kernels? Shawn Starr
2001-01-20 19:59 ` Gregory Maxwell
2001-01-20 20:16   ` Shawn Starr
2001-01-21 18:09   ` Chris Mason
2001-01-21 23:25     ` Kernel 2.4.x and 2.4.1-preX - Higher latency then 2.2.xkernels? Shawn Starr
2001-01-27  8:08       ` Andrew Morton
2001-01-27  8:04         ` Shawn Starr
2001-01-28  2:55           ` Shawn Starr
2001-01-28  3:29             ` Andrew Morton
2001-01-28  3:59               ` Shawn Starr [this message]
2001-01-28 19:17               ` Chris Mason
2001-01-29  0:33                 ` Shawn Starr
2001-01-28 11:46             ` Andrew Morton
2001-01-28 21:53               ` Shawn Starr

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