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From: KUROSAWA Takahiro <kurosawa@valinux.co.jp>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: pj@sgi.com, taka@valinux.co.jp, magnus.damm@gmail.com,
	dino@in.ibm.com, linux-kernel@vger.kernel.org,
	ckrm-tech@lists.sourceforge.net
Subject: Re: [PATCH 1/3] CPUMETER: add cpumeter framework to the CPUSETS
Date: Wed, 28 Sep 2005 15:35:01 +0900	[thread overview]
Message-ID: <20050928063501.89B5A70041@sv1.valinux.co.jp> (raw)
In-Reply-To: <1127812937.5174.6.camel@npiggin-nld.site>

On Tue, 27 Sep 2005 19:22:17 +1000
Nick Piggin <nickpiggin@yahoo.com.au> wrote:

> It could have come a long way since then, but this code looks
> much neater than the code I reviewed.

I'm glad to hear that!  But the cpu resource controller has
some problems, for example:

- The controller only controls the time_slice value and doesn't
  care the balance of cpus (the controller leaves balancing to 
  the existing balancing code in the scheduler).  So far I don't
  have any good idea to solve this.

- The controller holds a spinlock once per 1 second.  I don't
  know this is permissive or not, but the current scheduler
  doesn't hold any spinlocks normally, so...

-- 
KUROSAWA, Takahiro

  parent reply	other threads:[~2005-09-28  6:35 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-09-08  5:39 [PATCH 0/5] SUBCPUSETS: a resource control functionality using CPUSETS KUROSAWA Takahiro
2005-09-08  7:23 ` Paul Jackson
2005-09-08  8:18   ` KUROSAWA Takahiro
2005-09-08 12:02     ` Paul Jackson
2005-09-09  1:38       ` KUROSAWA Takahiro
2005-09-09  4:12         ` Magnus Damm
2005-09-09  5:55           ` Paul Jackson
2005-09-09  7:52             ` Magnus Damm
2005-09-09  8:39               ` Paul Jackson
2005-09-09 11:38             ` Hirokazu Takahashi
2005-09-09 13:31               ` Paul Jackson
2005-09-10  7:11                 ` Hirokazu Takahashi
2005-09-10  8:52                   ` Paul Jackson
2005-09-11 16:02                     ` Hirokazu Takahashi
2005-09-26  9:33                     ` [PATCH 0/3] CPUMETER (Re: [PATCH 0/5] SUBCPUSETS: a resource control functionality using CPUSETS) KUROSAWA Takahiro
2005-10-02  4:20                       ` Paul Jackson
2005-10-04  2:49                         ` KUROSAWA Takahiro
2005-09-26  9:34                     ` [PATCH 1/3] CPUMETER: add cpumeter framework to the CPUSETS KUROSAWA Takahiro
2005-09-27  8:37                       ` Paul Jackson
2005-09-27  9:22                         ` Nick Piggin
2005-09-27 15:53                           ` [ckrm-tech] " Paul Jackson
2005-09-27 21:45                           ` Chandra Seetharaman
2005-09-28  6:35                           ` KUROSAWA Takahiro [this message]
2005-09-28 10:08                             ` Hirokazu Takahashi
2005-09-28 10:32                               ` KUROSAWA Takahiro
2005-09-27 11:39                         ` KUROSAWA Takahiro
2005-09-27 15:49                           ` [ckrm-tech] " Paul Jackson
2005-09-28  6:21                             ` KUROSAWA Takahiro
2005-09-28  6:43                               ` Paul Jackson
2005-09-28  7:08                               ` Paul Jackson
2005-09-28  7:53                                 ` KUROSAWA Takahiro
2005-09-28 16:49                                   ` Paul Jackson
2005-09-29  2:53                                     ` KUROSAWA Takahiro
2005-09-29  2:58                                       ` Paul Jackson
2005-09-30  9:39                                       ` Simon Derr
2005-09-30 14:21                                         ` Paul Jackson
2005-10-02  7:01                             ` Ok to change cpuset flags for sched domains? (was [PATCH 1/3] CPUMETER ...) Paul Jackson
2005-10-03 14:00                               ` Dinakar Guniguntala
2005-10-03 23:36                                 ` [ckrm-tech] " Paul Jackson
2005-09-28  9:25                           ` [PATCH][BUG] fix memory leak on reading cpuset files after seeking beyond eof KUROSAWA Takahiro
2005-09-28 13:42                             ` Paul Jackson
2005-09-28 13:42                             ` [PATCH] cpuset read past eof memory leak fix Paul Jackson
2005-09-28 15:01                               ` Linus Torvalds
2005-09-28 17:53                                 ` Paul Jackson
2005-09-28 18:03                                   ` Linus Torvalds
2005-09-28 18:03                                   ` Randy.Dunlap
2005-09-28 19:04                                     ` [ckrm-tech] " Paul Jackson
2005-09-28 14:29                           ` [PATCH 1/3] CPUMETER: add cpumeter framework to the CPUSETS Paul Jackson
2005-09-26  9:34                     ` [PATCH 2/3] CPUMETER: CPU resource controller KUROSAWA Takahiro
2005-09-26  9:34                     ` [PATCH 3/3] CPUMETER: connect the CPU resource controller to CPUMETER KUROSAWA Takahiro
2005-09-09 22:26           ` [PATCH 0/5] SUBCPUSETS: a resource control functionality using CPUSETS Matthew Helsley
2005-09-08 13:14   ` Dinakar Guniguntala
2005-09-08 14:11     ` Dipankar Sarma
2005-09-08 14:55       ` Paul Jackson
2005-09-08 14:59     ` Paul Jackson
2005-09-08 22:51     ` [ckrm-tech] " Chandra Seetharaman

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