linux-kernel - [PATCH] csa accounting taskstats update

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Date:	Tue, 08 Aug 2006 12:33:29 -0700
From:	Jay Lan <jlan@....com>
To:	Andrew Morton <akpm@...l.org>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	Shailabh Nagar <nagar@...son.ibm.com>,
	Balbir Singh <balbir@...ibm.com>, Jes Sorensen <jes@....com>,
	Chris Sturtivant <csturtiv@....com>, Tony Ernst <tee@....com>,
	Guillaume Thouvenin <guillaume.thouvenin@...l.net>
Subject: [PATCH] csa accounting taskstats update

Hi Andrew,

This patch addresses the feedbacks from you and Balbir.

This patch is generated against 2.6.18-rc3 plus your patch
+ csa-basic-accounting-over-taskstats-fix.patch

This patch is to be applied after your patch which you
already added to -mm tree.



Signed-off-by: Jay Lan <jlan@....com>


I test built on ia64, i386 and x86_64 build servers.

ChangeLog:
   Feedbacks from Andrew Morton:
   - define TS_COMM_LEN to 32
   - change acct_stimexpd field of task_struct to be of
     cputime_t, which is to be used to save the tsk->stime
     of last timer interrupt update.
   - a new Documentation/accounting/taskstats-struct.txt
     to describe fields of taskstats struct.

   Feedback from Balbir Singh:
   - keep the stime of a task to be zero when both stime
     and utime are zero as recoreded in task_struct.

   Misc:
   - convert accumulated RSS/VM from platform dependent
     pages-ticks to MBytes-usecs in the kernel


View attachment "2.6.18-rc2-taskstats-acct-update" of type "text/plain" (11245 bytes)