From: Peter Zijlstra <peterz@infradead.org>
To: "Kirill A. Shutsemov" <kirill@shutemov.name>
Cc: Paul Menage <menage@google.com>, Li Zefan <lizf@cn.fujitsu.com>,
containers@lists.linux-foundation.org,
jacob.jun.pan@linux.intel.com,
Arjan van de Ven <arjan@linux.intel.com>,
linux-kernel@vger.kernel.org, Matt Helsley <matthltc@us.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-api@vger.kernel.org
Subject: Re: [PATCH, v7] cgroups: introduce timer slack controller
Date: Fri, 04 Mar 2011 20:03:42 +0100 [thread overview]
Message-ID: <1299265422.22521.2.camel@laptop> (raw)
In-Reply-To: <1299084001-3916-2-git-send-email-kirill@shutemov.name>
On Wed, 2011-03-02 at 18:40 +0200, Kirill A. Shutsemov wrote:
> - if (ret < current->timer_slack_ns)
> - return current->timer_slack_ns;
> - return ret;
> + return clamp(__estimate_accuracy(&now),
> + get_task_timer_slack(current), LONG_MAX);
That actually makes the code worse, how about:
min(__estimate_accuracy(), get_task_timer_slack()) ?
next prev parent reply other threads:[~2011-03-04 19:03 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-02 16:40 [PATCH, v7] Introduce timer slack controller Kirill A. Shutsemov
2011-03-02 16:40 ` Kirill A. Shutsemov
[not found] ` <1299084001-3916-1-git-send-email-kirill-oKw7cIdHH8eLwutG50LtGA@public.gmane.org>
2011-03-02 16:40 ` [PATCH, v7] cgroups: introduce " Kirill A. Shutsemov
2011-03-02 16:40 ` Kirill A. Shutsemov
2011-03-02 16:40 ` Kirill A. Shutsemov
[not found] ` <1299084001-3916-2-git-send-email-kirill-oKw7cIdHH8eLwutG50LtGA@public.gmane.org>
2011-03-02 18:40 ` Thomas Gleixner
2011-03-02 18:40 ` Thomas Gleixner
2011-03-02 18:40 ` Thomas Gleixner
[not found] ` <alpine.LFD.2.00.1103021912090.2701-bi+AKbBUZKagILUCTcTcHdKyNwTtLsGr@public.gmane.org>
2011-03-03 6:59 ` Li Zefan
2011-03-03 6:59 ` Li Zefan
2011-03-03 6:59 ` Li Zefan
[not found] ` <4D6F3C5B.8020307-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2011-03-03 7:34 ` Thomas Gleixner
2011-03-03 7:34 ` Thomas Gleixner
2011-03-03 7:34 ` Thomas Gleixner
2011-03-03 7:46 ` Matt Helsley
2011-03-03 7:46 ` Matt Helsley
[not found] ` <20110303074609.GL14893-52DBMbEzqgQ/wnmkkaCWp/UQ3DHhIser@public.gmane.org>
2011-03-03 8:28 ` Thomas Gleixner
2011-03-03 8:28 ` Thomas Gleixner
2011-03-03 8:28 ` Thomas Gleixner
2011-03-03 7:46 ` Matt Helsley
2011-03-03 8:33 ` Kirill A. Shutemov
2011-03-03 8:33 ` Kirill A. Shutemov
2011-03-03 8:33 ` Kirill A. Shutemov
2011-03-04 19:03 ` Peter Zijlstra
2011-03-04 19:03 ` Peter Zijlstra [this message]
2011-03-04 23:22 ` Kirill A. Shutemov
2011-03-04 23:22 ` Kirill A. Shutemov
2011-03-04 23:22 ` Kirill A. Shutemov
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