From: "Chris Friesen" <cfriesen@nortel.com>
To: sekharan@us.ibm.com
Cc: Nick Piggin <nickpiggin@yahoo.com.au>,
vatsa@in.ibm.com, Sam Vilain <sam@vilain.net>,
Kirill Korotaev <dev@openvz.org>, Mike Galbraith <efault@gmx.de>,
Ingo Molnar <mingo@elte.hu>,
Peter Williams <pwil3058@bigpond.net.au>,
Andrew Morton <akpm@osdl.org>, Balbir Singh <balbir@in.ibm.com>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC] CPU controllers?
Date: Mon, 19 Jun 2006 14:28:35 -0600 [thread overview]
Message-ID: <449708F3.4080706@nortel.com> (raw)
In-Reply-To: <1150744285.30901.6.camel@linuxchandra>
Chandra Seetharaman wrote:
> Resource Groups(CKRM) does allow threads to be in different Resource
> Groups ( and since Resource Group assignment is dynamic, a thread can
> move to a high priority resource group for a specific operation and get
> back to its original resource group after the operation is complete).
>
> Just wondering if that is sufficient or you _would_ need support from
> NPTL.
The main issue is that the mapping between pthread_t and and PID is only
known by NPTL. A thread can find it's own PID (for purposes of resource
groups) but it can't find the PID of other threads given their pthread_t.
Essentially I'm looking for cpu-group equivalents to:
pthread_setschedparam()
pthread_getschedparam()
pthread_attr_setschedpolicy()
pthread_attr_getschedpolicy()
It's not absolutely critical, but we did add it to our current NPTL.
Chris
prev parent reply other threads:[~2006-06-19 20:28 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-15 13:46 [RFC] CPU controllers? Srivatsa Vaddagiri
2006-06-15 21:52 ` Sam Vilain
2006-06-15 23:30 ` Peter Williams
2006-06-16 0:42 ` Matt Helsley
2006-06-17 8:48 ` Nick Piggin
2006-06-17 15:55 ` Balbir Singh
2006-06-17 16:48 ` Srivatsa Vaddagiri
2006-06-18 5:06 ` Nick Piggin
2006-06-18 5:53 ` Sam Vilain
2006-06-18 6:11 ` Nick Piggin
2006-06-18 6:40 ` Sam Vilain
2006-06-18 7:17 ` Nick Piggin
2006-06-18 6:42 ` Andrew Morton
2006-06-18 7:28 ` Nick Piggin
2006-06-19 19:03 ` Resource Management Requirements (was "[RFC] CPU controllers?") Chandra Seetharaman
2006-06-20 5:40 ` Srivatsa Vaddagiri
2006-06-18 7:36 ` [RFC] CPU controllers? Mike Galbraith
2006-06-18 7:49 ` Nick Piggin
2006-06-18 7:49 ` Nick Piggin
2006-06-18 9:09 ` Andrew Morton
2006-06-18 9:49 ` Mike Galbraith
2006-06-19 6:28 ` Mike Galbraith
2006-06-19 6:35 ` Andrew Morton
2006-06-19 6:46 ` Mike Galbraith
2006-06-19 18:21 ` Chris Friesen
2006-06-20 6:20 ` Mike Galbraith
2006-06-18 7:18 ` Srivatsa Vaddagiri
2006-06-19 2:07 ` Sam Vilain
2006-06-19 7:04 ` MAEDA Naoaki
2006-06-19 8:19 ` Sam Vilain
2006-06-19 8:41 ` MAEDA Naoaki
2006-06-19 8:53 ` Sam Vilain
2006-06-19 21:44 ` MAEDA Naoaki
2006-06-19 18:14 ` Chris Friesen
2006-06-19 19:11 ` Chandra Seetharaman
2006-06-19 20:28 ` Chris Friesen [this message]
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