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From: Robert Love <rml@tech9.net>
To: mingo@elte.hu
Cc: Ed Tomlinson <tomlins@cam.org>,
	Davide Libenzi <davidel@xmailserver.org>,
	lkml <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@transmeta.com>
Subject: Re: [patch] O(1) scheduler-H6/H7/I0 and nice +19
Date: 15 Jan 2002 20:59:08 -0500	[thread overview]
Message-ID: <1011146349.8756.63.camel@phantasy> (raw)
In-Reply-To: <Pine.LNX.4.33.0201160343230.30495-100000@localhost.localdomain>
In-Reply-To: <Pine.LNX.4.33.0201160343230.30495-100000@localhost.localdomain>

On Tue, 2002-01-15 at 21:48, Ingo Molnar wrote:

> there is a way: renicing. Either use nice +19 on the compilation job or
> use nice -5 on the 'known good' tasks. Perhaps we should allow a nice
> decrease of up to -5 from the default level - and things like KDE or Gnome
> could renice interactive tasks, while things like compilation jobs would
> run on the default priority.

This isn't a bad idea, as long as we don't use it as a crutch or
excuse.  That is, answer scheduling problems with "properly nice your
tasks" -- the scheduler should be smart enough, to some degree.

FWIW, Solaris actually implements a completely different scheduling
policy, SCHED_INTERACT or something.  It is for windowed tasks in X --
they get a large interactivity bonus.

	Robert Love


  reply	other threads:[~2002-01-16  1:56 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Pine.LNX.4.33.0201111723260.3212-100000@localhost.localdomain>
2002-01-11 21:28 ` [patch] O(1) scheduler-H6 " Ed Tomlinson
2002-01-14  3:27   ` [patch] O(1) scheduler-H6/H7 " Ed Tomlinson
2002-01-14  3:45     ` Davide Libenzi
2002-01-15  1:37       ` Ed Tomlinson
2002-01-15  1:50         ` Davide Libenzi
2002-01-15  1:58           ` Davide Libenzi
2002-01-15  2:18           ` Ed Tomlinson
2002-01-15  2:33             ` Davide Libenzi
2002-01-15  3:19               ` Ed Tomlinson
2002-01-15  3:27                 ` Davide Libenzi
2002-01-15 23:48                   ` [patch] O(1) scheduler-H6/H7/I0 " Ed Tomlinson
2002-01-15 23:56                     ` Davide Libenzi
2002-01-16  1:49                     ` Ingo Molnar
2002-01-16  0:44                       ` Ed Tomlinson
2002-01-16  2:48                         ` Ingo Molnar
2002-01-16  1:59                           ` Robert Love [this message]
2002-01-16  2:04                             ` Davide Libenzi
2002-01-16  2:59                               ` Robert Love
2002-01-16  3:04                                 ` Linus Torvalds
2002-01-16  2:06                       ` Rene Rebe
     [not found] <mng==Pine.LNX.4.40.0201151803020.940-100000@blue1.dev.mcafeelabs.com>
     [not found] ` <mng==1011149980.8756.180.camel@phantasy>
2002-01-16 22:41   ` Jens-Uwe Mager

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