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From: Con Kolivas <kernel@kolivas.org>
To: azarah@nosferatu.za.org
Cc: Soeren Sonnenburg <kernel@nn7.de>,
	Willy Tarreau <willy@w.ods.org>,
	Mark Hahn <hahn@physics.mcmaster.ca>,
	Linux Kernel Mailing Lists <linux-kernel@vger.kernel.org>,
	gillb4@telusplanet.net
Subject: Re: xterm scrolling speed - scheduling weirdness in 2.6 ?!
Date: Sun, 4 Jan 2004 23:45:32 +1100	[thread overview]
Message-ID: <200401042345.33039.kernel@kolivas.org> (raw)
In-Reply-To: <1073214820.6075.254.camel@nosferatu.lan>

On Sun, 4 Jan 2004 22:13, Martin Schlemmer wrote:
> On Sun, 2004-01-04 at 10:49, Con Kolivas wrote:
> > > I added a fprintf(stderr, "%d\n", amount); to that code and indeed
> > > amount was *always* 1 no matter what I did (it even was 1 when the
> > > (dmesg/...) output came in fast). And jump scrolling would take place
> > > if amount > 59 in my case... can this still be not a schedulers issue ?
> > >
> > >
> > > Looking at that how can it not be a scheduling problem ....
> >
> > Scheduling problem, yes; of a sort.
> >
> > Solution by altering the scheduler, no.
> >
> > My guess is that turning the xterm graphic candy up or down will change
> > the balance. Trying to be both gui intensive and a console is where it's
> > happening. On some hardware you are falling on both sides of the fence
> > with 2.6 where previously you would be on one side.
>
> So its Ok for 'eye candy' to 'lag', but xmms should not skip?  Anyhow,
> its xterm that he have issues with, not gnome-terminal or such with
> transparency.  I smell something ...

Sigh... 

Xmms was a simple test case long forgotten but most still think all I did was 
make an xmms scheduler. Deleting one character from sched.c before all of my 
patches would make the scheduler ideal for xmms. Any braindead idiot can tune 
a scheduler for just one application. An application that changes it's 
behaviour dynamically well in the setting of a particular scheduler, though? 
Should a scheduler be tuned to suit a coding style or quirk? 

I should go back to lurking before people start calling me names. This thread 
has gone long enough for that. If I hadn't said anything it would have died 
out by now. Instead I'm drawing attention to my fundamentally flawed code.

Con


  parent reply	other threads:[~2004-01-04 12:45 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Pine.LNX.4.44.0401031439060.24942-100000@coffee.psychology.mcmaster.ca>
2004-01-03 20:19 ` xterm scrolling speed - scheduling weirdness in 2.6 ?! 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 [this message]
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
2004-04-02 18:22                               ` solved (was Re: xterm scrolling speed - scheduling weirdness in 2.6 ?!) Soeren Sonnenburg
2004-04-03  5:35                                 ` Tim Connors
2004-04-03  6:06                                   ` Tim Connors
2004-04-03 14:11                                     ` Jamie Lokier
2004-01-05  8:26                         ` xterm scrolling speed - scheduling weirdness in 2.6 ?! 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 11:46                   ` Nicks's scheduler's OK [was Re: xterm scrolling speed - scheduling weirdness in 2.6 ?!] Willy Tarreau
2004-01-04 12:07                   ` xterm scrolling speed - scheduling weirdness in 2.6 ?! 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
     [not found] <Pine.LNX.4.44.0401031402210.24942-100000@coffee.psychology.mcmaster.ca>
2004-01-03 19:07 ` Soeren Sonnenburg
  -- strict thread matches above, loose matches on Subject: below --
2004-01-03 18:52 Soeren Sonnenburg
2004-01-03 19:19 ` Willy Tarreau
2004-01-04 20:47   ` Peter Chubb
2004-01-04 20:54     ` Willy TARREAU
2004-01-05  3:46       ` Peter Chubb

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