From: Paul Jackson <pj@sgi.com>
To: Christoph Lameter <clameter@engr.sgi.com>
Cc: ak@suse.de, kenneth.w.chen@intel.com, linux-mm@kvack.org,
linux-ia64@vger.kernel.org
Subject: Re: [NUMA] Display and modify the memory policy of a process
Date: Sun, 17 Jul 2005 07:22:41 +0000 [thread overview]
Message-ID: <20050717002241.3224f104.pj@sgi.com> (raw)
In-Reply-To: <Pine.LNX.4.62.0507162253020.28788@schroedinger.engr.sgi.com>
Christoph, responding to pj:
> > I'm missing something here. Are you saying that just a change to
> > libnuma would suffice to accomplish what you sought with this patch?
>
> Its a quite significant change but yes of course you can do that ...
I am totally stumped. I have no idea how what you have in mind.
The mbind, set_mempolicy and get_mempolicy system calls plainly and
simply apply only to the current task, and it would take changes in
kernel code and the system call API to change that fact in any
sensible way.
You've dropped one hint: its a quite significant change.
If you have the patience, could you drop a couple more hints on how
to do this (make this change by just changing libnuma)? Perhaps with
a little more technical meat on their bones?
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.925.600.0401
WARNING: multiple messages have this Message-ID (diff)
From: Paul Jackson <pj@sgi.com>
To: Christoph Lameter <clameter@engr.sgi.com>
Cc: ak@suse.de, kenneth.w.chen@intel.com, linux-mm@kvack.org,
linux-ia64@vger.kernel.org
Subject: Re: [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy
Date: Sun, 17 Jul 2005 00:22:41 -0700 [thread overview]
Message-ID: <20050717002241.3224f104.pj@sgi.com> (raw)
In-Reply-To: <Pine.LNX.4.62.0507162253020.28788@schroedinger.engr.sgi.com>
Christoph, responding to pj:
> > I'm missing something here. Are you saying that just a change to
> > libnuma would suffice to accomplish what you sought with this patch?
>
> Its a quite significant change but yes of course you can do that ...
I am totally stumped. I have no idea how what you have in mind.
The mbind, set_mempolicy and get_mempolicy system calls plainly and
simply apply only to the current task, and it would take changes in
kernel code and the system call API to change that fact in any
sensible way.
You've dropped one hint: its a quite significant change.
If you have the patience, could you drop a couple more hints on how
to do this (make this change by just changing libnuma)? Perhaps with
a little more technical meat on their bones?
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.925.600.0401
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next prev parent reply other threads:[~2005-07-17 7:22 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-15 1:39 [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-15 1:39 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-15 3:50 ` [NUMA] Display and modify the memory policy of a process Paul Jackson
2005-07-15 3:50 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Paul Jackson
2005-07-15 4:52 ` Chen, Kenneth W
2005-07-15 4:52 ` Chen, Kenneth W
2005-07-15 5:07 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-15 5:07 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-15 6:05 ` [NUMA] Display and modify the memory policy of a process Paul Jackson
2005-07-15 6:05 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Paul Jackson
2005-07-15 11:46 ` [NUMA] Display and modify the memory policy of a process Andi Kleen
2005-07-15 11:46 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Andi Kleen
2005-07-15 16:06 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-15 16:06 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-15 21:04 ` [NUMA] Display and modify the memory policy of a process Paul Jackson
2005-07-15 21:04 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Paul Jackson
2005-07-15 21:12 ` Andi Kleen
2005-07-15 21:12 ` Andi Kleen
2005-07-15 21:20 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-15 21:20 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-15 21:47 ` Andi Kleen
2005-07-15 21:47 ` Andi Kleen
2005-07-15 21:55 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-15 21:55 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-15 22:07 ` Andi Kleen
2005-07-15 22:07 ` Andi Kleen
2005-07-15 22:30 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-15 22:30 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-15 22:37 ` Andi Kleen
2005-07-15 22:37 ` Andi Kleen
2005-07-15 22:49 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-15 22:49 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-15 22:56 ` Andi Kleen
2005-07-15 22:56 ` Andi Kleen
2005-07-15 23:11 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-15 23:11 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-15 23:44 ` Andi Kleen
2005-07-15 23:44 ` Andi Kleen
2005-07-15 23:56 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-15 23:56 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-16 2:01 ` Andi Kleen
2005-07-16 2:01 ` Andi Kleen
2005-07-16 15:14 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-16 15:14 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-16 22:39 ` [NUMA] Display and modify the memory policy of a process Paul Jackson
2005-07-16 22:39 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Paul Jackson
2005-07-16 23:30 ` [NUMA] Display and modify the memory policy of a process Paul Jackson
2005-07-16 23:30 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Paul Jackson
2005-07-17 1:55 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-17 1:55 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-17 3:50 ` [NUMA] Display and modify the memory policy of a process Paul Jackson
2005-07-17 3:50 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Paul Jackson
2005-07-17 5:56 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-17 5:56 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-17 7:22 ` Paul Jackson [this message]
2005-07-17 7:22 ` Paul Jackson
2005-07-17 3:21 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-17 3:21 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-17 4:51 ` [NUMA] Display and modify the memory policy of a process Paul Jackson
2005-07-17 4:51 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Paul Jackson
2005-07-17 6:00 ` [NUMA] Display and modify the memory policy of a process through Christoph Lameter
2005-07-17 6:00 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Christoph Lameter
2005-07-17 8:17 ` [NUMA] Display and modify the memory policy of a process Paul Jackson
2005-07-17 8:17 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Paul Jackson
2005-07-16 0:00 ` [NUMA] Display and modify the memory policy of a process through David Singleton
2005-07-16 0:00 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy David Singleton
2005-07-16 0:16 ` [NUMA] Display and modify the memory policy of a process through Steve Neuner
2005-07-16 0:16 ` [NUMA] Display and modify the memory policy of a process through /proc/<pid>/numa_policy Steve Neuner
2005-07-15 5:55 ` Chen, Kenneth W
2005-07-15 5:55 ` Chen, Kenneth W
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