Subject: Re: xterm scrolling speed - scheduling weirdness in 2.6 ?!
From: Soeren Sonnenburg <kernel@nn7.de>
To: Kenneth Johansson <ken@kenjo.org>
Cc: Mike Fedyk <mfedyk@matchmail.com>, Willy Tarreau <willy@w.ods.org>,
       szonyi calin <caszonyi@yahoo.com>, azarah@nosferatu.za.org,
       Con Kolivas <kernel@kolivas.org>, Mark Hahn <hahn@physics.mcmaster.ca>,
       Linux Kernel Mailing Lists <linux-kernel@vger.kernel.org>,
       gillb4@telusplanet.net
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On Mon, 2004-01-05 at 10:50, Kenneth Johansson wrote:
> On Mon, 2004-01-05 at 00:47, Mike Fedyk wrote:
> > On Mon, Jan 05, 2004 at 12:33:12AM +0100, Willy Tarreau wrote:
> > > at a time. I have yet to understand why 'ls|cat' behaves
> > > differently, but fortunately it works and it has already saved
> > > me some useful time.
> > 
> > cat probably does some buffering for you, and sends the output to xterm in
> > larger blocks.
> 
> you can try with "ls |dd bs=1"

yes it is slow as #$%$##@

when incresing to say bs=100 it is as fast as it used to be.

> I also see this problem but it is not constant. I noticed that "ps ax"
> sometimes takes like 10 times longer than usual. But I can only get this
> in a gnome-terminal not in xterm. The problem is that it should really
> not be that big difference when the load of the system is the same. 

well I can get it in both here. just any program that produces output...

Soeren.

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