From: Kirill Korotaev <dev@sw.ru>
To: Mike Galbraith <efault@gmx.de>
Cc: MAEDA Naoaki <maeda.naoaki@jp.fujitsu.com>,
akpm@osdl.org, linux-kernel@vger.kernel.org,
ckrm-tech@lists.sourceforge.net
Subject: Re: [ckrm-tech] Re: [PATCH 0/9] CPU controller
Date: Fri, 28 Apr 2006 12:13:43 +0400 [thread overview]
Message-ID: <4451CEB7.6080509@sw.ru> (raw)
In-Reply-To: <1146210395.7551.37.camel@homer>
>>>I'm also pretty sure, that CPU controller based on timeslice tricks
>>>behaves poorly on burstable load patterns as well and with interactive
>>>tasks. So before commiting I propose to perform a good testing on
>>>different load patterns.
>>
>>Yes, it can only react very slowly.
>
>
> Actually, this might not be that much of a problem. I know I can
> traverse queue heads periodically very cheaply. Traversing both active
> and expired arrays to requeue starving tasks once every 100ms costs max
> 4usecs (3GHz P4) for a typical distribution.
with fair scheduling with can be a big problem, as tasks working less
then a tick are hard to account :/
Thanks,
Kirill
next prev parent reply other threads:[~2006-04-28 8:05 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-28 1:37 MAEDA Naoaki
2006-04-28 1:37 ` [PATCH 1/9] CPU controller - Add class load estimation support MAEDA Naoaki
2006-04-28 1:37 ` [PATCH 2/9] CPU controller - Add class hungry detection support MAEDA Naoaki
2006-04-28 1:37 ` [PATCH 3/9] CPU controller - Add timeslice scaling support MAEDA Naoaki
2006-04-28 1:37 ` [PATCH 4/9] CPU controller - Add interface functions MAEDA Naoaki
2006-04-28 1:37 ` [PATCH 5/9] CPU controller - Documentation how the controller works MAEDA Naoaki
2006-04-28 1:38 ` [PATCH 6/9] CPU controller - Add basic functions and registering the controller MAEDA Naoaki
2006-04-28 1:38 ` [PATCH 7/9] CPU controller - Add routines to change share values and show stat MAEDA Naoaki
2006-04-28 1:38 ` [PATCH 8/9] CPU controller - Add cpu hotplug support MAEDA Naoaki
2006-04-28 1:38 ` [PATCH 9/9] CPU controller - Documentation how to use the controller MAEDA Naoaki
2006-04-28 5:25 ` [PATCH 0/9] CPU controller Mike Galbraith
2006-04-28 5:48 ` MAEDA Naoaki
2006-04-28 6:59 ` Mike Galbraith
2006-04-28 7:26 ` MAEDA Naoaki
2006-04-28 7:41 ` Mike Galbraith
2006-04-28 7:56 ` [ckrm-tech] " MAEDA Naoaki
2006-04-28 9:29 ` Mike Galbraith
2006-04-28 10:01 ` Mike Galbraith
2006-04-28 10:11 ` Con Kolivas
2006-04-28 12:07 ` MAEDA Naoaki
2006-04-28 13:09 ` Con Kolivas
2006-04-28 13:55 ` Hirokazu Takahashi
2006-04-28 14:55 ` Con Kolivas
2006-04-28 15:39 ` Mike Galbraith
2006-04-28 5:56 ` Kirill Korotaev
2006-04-28 7:11 ` Mike Galbraith
2006-04-28 7:46 ` Mike Galbraith
2006-04-28 8:13 ` Kirill Korotaev [this message]
2006-04-28 9:35 ` Mike Galbraith
2006-04-28 10:09 ` Con Kolivas
2006-04-28 10:16 ` Mike Galbraith
2006-04-28 10:26 ` Con Kolivas
2006-04-28 10:42 ` Mike Galbraith
2006-04-28 8:28 ` MAEDA Naoaki
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=4451CEB7.6080509@sw.ru \
--to=dev@sw.ru \
--cc=akpm@osdl.org \
--cc=ckrm-tech@lists.sourceforge.net \
--cc=efault@gmx.de \
--cc=linux-kernel@vger.kernel.org \
--cc=maeda.naoaki@jp.fujitsu.com \
/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
all inboxes | Powered by JetHome®