All of lore.kernel.org
 help / color / mirror / Atom feed
From: Peter Chubb <peter@chubb.wattle.id.au>
To: Willy Tarreau <willy@w.ods.org>
Cc: Soeren Sonnenburg <kernel@nn7.de>,
	Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: xterm scrolling speed - scheduling weirdness in 2.6 ?!
Date: Mon, 5 Jan 2004 07:47:43 +1100	[thread overview]
Message-ID: <16376.31727.114173.311369@wombat.chubb.wattle.id.au> (raw)
In-Reply-To: <20040103191901.GC3728@alpha.home.local>

>>>>> "Willy" == Willy Tarreau <willy@w.ods.org> writes:

Willy> Hi !  On Sat, Jan 03, 2004 at 07:52:36PM +0100, Soeren
Willy> Sonnenburg wrote:
 
>> So it is like 30 times slower on 2.6. when running for the first
>> time...  this also happens if I do e.g. find ./ and watch the
>> output pass by...
>> 
>> This is without preemption on powerpc...
>> 
>> Anyone else with that problem - ideas of the cause ?

I see a very similar problem ... seems like a process doing disc I.O
isn't being woken up fast enough after the I/O completes.

For some processes, allowing interrupts back on (hdparm -u1) helps;
for others, switching to the deadline elevator helps; neither are
complete solutions.

PeterC

  reply	other threads:[~2004-01-04 20:48 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-03 18:52 xterm scrolling speed - scheduling weirdness in 2.6 ?! Soeren Sonnenburg
2004-01-03 19:19 ` Willy Tarreau
2004-01-04 20:47   ` Peter Chubb [this message]
2004-01-04 20:54     ` Willy TARREAU
2004-01-05  3:46       ` Peter Chubb
     [not found] <Pine.LNX.4.44.0401031402210.24942-100000@coffee.psychology.mcmaster.ca>
2004-01-03 19:07 ` Soeren Sonnenburg
     [not found] <Pine.LNX.4.44.0401031439060.24942-100000@coffee.psychology.mcmaster.ca>
2004-01-03 20:19 ` Soeren Sonnenburg
2004-01-03 21:00   ` Con Kolivas
2004-01-03 21:10     ` Soeren Sonnenburg
2004-01-03 21:15       ` Con Kolivas
2004-01-03 23:35         ` Willy Tarreau
2004-01-04  0:11           ` Soeren Sonnenburg
2004-01-04  1:42           ` Con Kolivas
2004-01-04  3:32             ` Tim Connors
2004-01-04  5:58               ` Con Kolivas
2004-01-06  1:09                 ` Peter Osterlund
2004-01-06  1:37                   ` Nick Piggin
2004-01-06  2:28                     ` Peter Osterlund
2004-01-06  2:50                       ` Nick Piggin
2004-01-06  6:27                       ` Nick Piggin
2004-01-05 22:25               ` Bryan Whitehead
2004-01-04  8:09             ` Soeren Sonnenburg
2004-01-04  8:49               ` Con Kolivas
2004-01-04 11:13                 ` Martin Schlemmer
2004-01-04 11:24                   ` Soeren Sonnenburg
2004-01-04 12:45                   ` Con Kolivas
2004-01-04 14:42                     ` Martin Schlemmer
2004-01-04 18:40                       ` mikeg
2004-01-04 22:58                       ` szonyi calin
2004-01-04 23:33                         ` Willy Tarreau
2004-01-04 23:44                           ` Valdis.Kletnieks
2004-01-04 23:47                           ` Mike Fedyk
2004-01-05  8:39                             ` Soeren Sonnenburg
2004-01-05 20:38                               ` Martin Schlemmer
2004-01-05  9:18                             ` Soeren Sonnenburg
2004-01-05 17:20                               ` Martin Schlemmer
2004-01-05 17:21                                 ` Willy Tarreau
2004-01-05  9:50                             ` Kenneth Johansson
2004-01-05 10:17                               ` Soeren Sonnenburg
2004-01-05  8:26                         ` Soeren Sonnenburg
2004-01-04  8:54               ` Lincoln Dale
2004-01-04  9:17                 ` Nick Piggin
2004-01-04 10:24                   ` Soeren Sonnenburg
2004-01-04 11:12                     ` Mike Fedyk
2004-01-04 11:17                       ` Soeren Sonnenburg
2004-01-04 11:20                         ` Mike Fedyk
2004-01-04 11:19                       ` Willy Tarreau
2004-01-05  0:48                         ` Nick Piggin
2004-01-04 12:07                   ` Willy Tarreau
2004-01-05  0:51                     ` Nick Piggin
2004-01-05 18:37                       ` Willy Tarreau
2004-01-06  0:33                         ` Nick Piggin
2004-01-04 10:11                 ` Soeren Sonnenburg
2004-01-05 10:31                   ` venom
2004-01-03 21:18     ` Willy Tarreau
2004-01-03 21:39 Bob Gill

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=16376.31727.114173.311369@wombat.chubb.wattle.id.au \
    --to=peter@chubb.wattle.id.au \
    --cc=kernel@nn7.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=willy@w.ods.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.