From: "Paul Menage" <menage@google.com>
To: vatsa@linux.vnet.ibm.com
Cc: "Linus Torvalds" <torvalds@linux-foundation.org>,
"Andrew Morton" <akpm@linux-foundation.org>,
containers@lists.linux-foundation.org,
LKML <linux-kernel@vger.kernel.org>,
"Ingo Molnar" <mingo@elte.hu>,
"Balbir Singh" <balbir@linux.vnet.ibm.com>
Subject: Re: Revert for cgroups CPU accounting subsystem patch
Date: Mon, 12 Nov 2007 23:57:03 -0800 [thread overview]
Message-ID: <6599ad830711122357i60482475o10c0e0935a9e00c0@mail.gmail.com> (raw)
In-Reply-To: <20071113074805.GA13499@linux.vnet.ibm.com>
On Nov 12, 2007 11:48 PM, Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> wrote:
>
> Regarding your concern about tracking cpu usage in different ways, it
> could be mitigated if we have cpuacct controller track usage as per
> information present in a task's sched entity structure
> (tsk->se.sum_exec_runtime) i.e call cpuacct_charge() from
> __update_curr() which would accumulate the execution time of the
> group in a SMP friendly manner (i.e dump it in a per-cpu per-group counter
> first and then aggregate to a global per-group counter).
That seems more reasonable than the current approach in cpu_acct.c
Paul
next prev parent reply other threads:[~2007-11-13 7:57 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-13 5:25 Revert for cgroups CPU accounting subsystem patch Paul Menage
2007-11-13 6:00 ` Srivatsa Vaddagiri
2007-11-13 6:05 ` Paul Menage
2007-11-13 7:00 ` Balbir Singh
2007-11-13 7:10 ` Paul Menage
2007-11-13 7:29 ` Balbir Singh
2007-11-13 7:34 ` Paul Menage
2007-11-13 7:59 ` Srivatsa Vaddagiri
2007-11-13 7:59 ` Paul Menage
2007-11-13 7:48 ` Srivatsa Vaddagiri
2007-11-13 7:57 ` Paul Menage [this message]
2007-11-29 19:17 ` [PATCH] sched: cpu accounting controller Srivatsa Vaddagiri
2007-11-29 19:20 ` Ingo Molnar
2007-11-29 19:39 ` Srivatsa Vaddagiri
2007-11-29 19:30 ` Andrew Morton
2007-11-29 20:18 ` Srivatsa Vaddagiri
2007-11-30 12:42 ` [PATCH] sched: cpu accounting controller (V2) Srivatsa Vaddagiri
2007-11-30 12:35 ` Ingo Molnar
2007-11-30 13:09 ` Srivatsa Vaddagiri
2007-11-30 13:34 ` Ingo Molnar
2007-11-30 12:45 ` Balbir Singh
2007-11-30 13:53 ` Ingo Molnar
2007-11-30 14:00 ` Balbir Singh
2007-11-30 18:45 ` Balbir Singh
2007-11-30 19:46 ` Ingo Molnar
2007-12-01 7:48 ` Paul Menage
2007-12-01 9:51 ` Balbir Singh
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