From: Kyle Moffett <mrmacman_g4@mac.com>
To: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Peter Williams <pwil3058@bigpond.net.au>,
Ingo Molnar <mingo@elte.hu>, Con Kolivas <kernel@kolivas.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] sched: Fix adverse effects of NFS client on interactive response
Date: Wed, 21 Dec 2005 08:36:45 -0500 [thread overview]
Message-ID: <962C9716-6F84-477B-8B2A-FA771C21CDE8@mac.com> (raw)
In-Reply-To: <1135171280.7958.16.camel@lade.trondhjem.org>
On Dec 21, 2005, at 08:21, Trond Myklebust wrote:
> ...and if you stick in a faster server?...
>
> There is _NO_ fundamental difference between NFS and a local
> filesystem that warrants marking one as "interactive" and the other
> as "noninteractive". What you are basically saying is that all I/O
> should be marked as TASK_NONINTERACTIVE.
Uhh, what part of disk/NFS/filesystem access is "interactive"? Which
of those sleeps directly involve responding to user-interface
events? _That_ is the whole point of the interactivity bonus, and
precisely why Ingo introduced TASK_NONINTERACTIVE sleeps; so that
processes that are not being useful for interactivity could be moved
away from TASK_NONINTERRUPTABLE, with the end result that the X-
server could be run at priority 0 without harming interactivity, even
during heavy *disk*, *NFS*, and *network* activity. Admittedly, that
may not be what some people want, but they're welcome to turn off the
interactivity bonuses via some file in /proc (sorry, don't remember
which at the moment).
Cheers,
Kyle Moffett
--
I have yet to see any problem, however complicated, which, when you
looked at it in the right way, did not become still more complicated.
-- Poul Anderson
next prev parent reply other threads:[~2005-12-21 13:37 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-21 6:00 [PATCH] sched: Fix adverse effects of NFS client on interactive response Peter Williams
2005-12-21 6:09 ` Trond Myklebust
2005-12-21 6:32 ` Peter Williams
2005-12-21 13:21 ` Trond Myklebust
2005-12-21 13:36 ` Kyle Moffett [this message]
2005-12-21 13:40 ` Trond Myklebust
2005-12-22 2:26 ` Peter Williams
2005-12-22 22:08 ` Trond Myklebust
2005-12-22 22:33 ` Peter Williams
2005-12-22 22:59 ` Trond Myklebust
2005-12-23 0:02 ` Kyle Moffett
2005-12-23 0:25 ` Trond Myklebust
2005-12-23 3:06 ` Peter Williams
2005-12-23 9:39 ` Trond Myklebust
2005-12-23 10:49 ` Peter Williams
2005-12-23 12:51 ` Trond Myklebust
2005-12-23 13:36 ` Peter Williams
2006-01-02 12:09 ` Pekka Enberg
2005-12-23 19:07 ` Lee Revell
2005-12-23 21:08 ` Trond Myklebust
2005-12-23 21:17 ` Lee Revell
2005-12-23 21:23 ` Trond Myklebust
2005-12-23 22:04 ` Lee Revell
2005-12-23 22:10 ` Trond Myklebust
2005-12-21 16:10 ` Horst von Brand
2005-12-21 20:36 ` Kyle Moffett
2005-12-21 22:59 ` Peter Williams
2005-12-21 16:11 ` Ingo Molnar
2005-12-21 22:49 ` Peter Williams
2006-01-02 11:01 ` Helge Hafting
2006-01-02 23:54 ` Peter Williams
2006-01-04 1:25 ` Peter Williams
2006-01-04 9:40 ` Marcelo Tosatti
2006-01-04 12:18 ` Con Kolivas
2006-01-04 10:31 ` Marcelo Tosatti
2006-01-04 21:51 ` Peter Williams
2006-01-05 6:31 ` Mike Galbraith
2006-01-05 11:31 ` Peter Williams
2006-01-05 14:31 ` Mike Galbraith
2006-01-05 23:13 ` Peter Williams
2006-01-05 23:33 ` Con Kolivas
2006-01-06 0:02 ` Peter Williams
2006-01-06 0:08 ` Con Kolivas
2006-01-06 0:40 ` Peter Williams
2006-01-06 7:39 ` Mike Galbraith
2006-01-07 1:11 ` Peter Williams
2006-01-07 5:27 ` Mike Galbraith
2006-01-07 6:34 ` Peter Williams
2006-01-07 8:54 ` Mike Galbraith
2006-01-07 23:40 ` Peter Williams
2006-01-08 5:51 ` Mike Galbraith
2006-01-07 9:30 ` Con Kolivas
2006-01-07 10:23 ` Mike Galbraith
2006-01-07 23:31 ` Peter Williams
2006-01-08 0:38 ` Con Kolivas
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=962C9716-6F84-477B-8B2A-FA771C21CDE8@mac.com \
--to=mrmacman_g4@mac.com \
--cc=kernel@kolivas.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=pwil3058@bigpond.net.au \
--cc=trond.myklebust@fys.uio.no \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).