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From: Andi Kleen <andi@firstfloor.org>
To: holzheu@linux.vnet.ibm.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH 00/10] taskstats: Enhancements for precise accounting
Date: Thu, 30 Sep 2010 10:38:26 +0200	[thread overview]
Message-ID: <871v8bwrr1.fsf@basil.nowhere.org> (raw)
In-Reply-To: <1285249681.1837.28.camel@holzheu-laptop> (Michael Holzheu's message of "Thu, 23 Sep 2010 15:48:01 +0200")

Michael Holzheu <holzheu@linux.vnet.ibm.com> writes:
>
> Compared to the old top command that has to scan more than 1000 proc
> directories the new ptop consumes much less CPU time (0.05% system time
> on my s390 system).

Sounds like a nice advantage (and in a way goes back to old kmem ps) 

Are there plans to make the standard top command use this new interface
or will it be only something for specialized utilities?

-Andi
-- 
ak@linux.intel.com -- Speaking for myself only.

  parent reply	other threads:[~2010-09-30  8:38 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-23 13:48 [RFC][PATCH 00/10] taskstats: Enhancements for precise accounting Michael Holzheu
2010-09-23 14:00 ` [RFC][PATCH 01/10] taskstats: Use real microsecond granularity for CPU times Michael Holzheu
2010-10-07  5:08   ` Balbir Singh
2010-10-08 15:08     ` Michael Holzheu
2010-10-08 16:39       ` Balbir Singh
2010-09-23 14:01 ` [RFC][PATCH 02/10] taskstats: Separate taskstats commands Michael Holzheu
2010-09-27  9:32   ` Balbir Singh
2010-10-11  7:40   ` Balbir Singh
2010-09-23 14:01 ` [RFC][PATCH 03/10] taskstats: Split fill_pid function Michael Holzheu
2010-09-23 17:33   ` Oleg Nesterov
2010-09-27  9:33   ` Balbir Singh
2010-10-11  8:31   ` Balbir Singh
2010-09-23 14:01 ` [RFC][PATCH 04/10] taskstats: Add new taskstats command TASKSTATS_CMD_ATTR_PIDS Michael Holzheu
2010-09-23 14:01 ` [RFC][PATCH 05/10] taskstats: Add "/proc/taskstats" Michael Holzheu
2010-09-23 14:01 ` [RFC][PATCH 06/10] taskstats: Add thread group ID to taskstats structure Michael Holzheu
2010-09-23 14:01 ` [RFC][PATCH 07/10] taskstats: Add per task steal time accounting Michael Holzheu
2010-09-23 14:02 ` [RFC][PATCH 08/10] taskstats: Add cumulative CPU time (user, system and steal) Michael Holzheu
2010-09-23 14:02 ` [RFC][PATCH 09/10] taskstats: Fix exit CPU time accounting Michael Holzheu
2010-09-23 17:10   ` Oleg Nesterov
2010-09-24 12:18     ` Michael Holzheu
2010-09-26 18:11       ` Oleg Nesterov
2010-09-27 13:23         ` Michael Holzheu
2010-09-27 13:42         ` Martin Schwidefsky
2010-09-27 16:51           ` Oleg Nesterov
2010-09-28  7:09             ` Martin Schwidefsky
2010-09-29 19:19             ` Roland McGrath
2010-09-30 13:47               ` Michael Holzheu
2010-10-05  8:57                 ` Roland McGrath
2010-10-06  9:29                   ` Michael Holzheu
2010-10-06 15:26                     ` Oleg Nesterov
2010-10-07 15:06                       ` Michael Holzheu
2010-10-11 12:37                         ` Oleg Nesterov
2010-10-12 13:10                           ` Michael Holzheu
2010-10-14 13:47                             ` Oleg Nesterov
2010-10-15 14:34                               ` Michael Holzheu
2010-10-19 14:17                                 ` Oleg Nesterov
2010-10-22 16:53                                   ` Michael Holzheu
2010-09-28  8:36           ` Balbir Singh
2010-09-28  9:08             ` Martin Schwidefsky
2010-09-28  9:23               ` Balbir Singh
2010-09-28 10:36                 ` Martin Schwidefsky
2010-09-28 10:39                   ` Balbir Singh
2010-09-28  8:21   ` Balbir Singh
2010-09-28 16:50     ` Michael Holzheu
2010-09-23 14:04 ` [RFC][PATCH 10/10] taststats: User space with ptop tool Michael Holzheu
2010-09-23 20:11 ` [RFC][PATCH 00/10] taskstats: Enhancements for precise accounting Andrew Morton
2010-09-23 22:11   ` Matt Helsley
2010-09-24 12:39     ` Michael Holzheu
2010-09-25 18:19     ` Serge E. Hallyn
2010-09-24  9:10   ` Michael Holzheu
2010-09-24 18:50     ` Andrew Morton
2010-09-27  9:18       ` Michael Holzheu
2010-09-27 20:02         ` Andrew Morton
2010-09-28  8:17           ` Balbir Singh
2010-09-27 10:49     ` Balbir Singh
2010-09-24  9:16 ` Balbir Singh
2010-09-30  8:38 ` Andi Kleen [this message]
2010-09-30 13:56   ` Michael Holzheu

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