From: "Gregory Haskins" <ghaskins@novell.com>
To: "Steven Rostedt" <rostedt@goodmis.org>
Cc: <a.p.zijlstra@chello.nl>, <mingo@elte.hu>, <bill.huey@gmail.com>,
<kevin@hilman.org>, <tglx@linutronix.de>, <cminyard@mvista.com>,
<dsingleton@mvista.com>, <dwalker@mvista.com>,
"Moiz Kohari" <MKohari@novell.com>,
"Peter Morreale" <PMorreale@novell.com>,
"Sven Dietrich" <SDietrich@novell.com>, <dsaxena@plexity.net>,
<acme@redhat.com>, <ak@suse.de>, <gregkh@suse.de>,
<npiggin@suse.de>, <pavel@ucw.cz>, <linux-kernel@vger.kernel.org>,
<linux-rt-users@vger.kernel.org>
Subject: Re: [(RT RFC) PATCH v2 4/9] optimize rt lock wakeup
Date: Mon, 03 Mar 2008 08:41:56 -0700 [thread overview]
Message-ID: <47CBD5F4.BA47.005A.0@novell.com> (raw)
In-Reply-To: <Pine.LNX.4.58.0803031036380.18766@gandalf.stny.rr.com>
>>> On Mon, Mar 3, 2008 at 10:37 AM, in message
<Pine.LNX.4.58.0803031036380.18766@gandalf.stny.rr.com>, Steven Rostedt
<rostedt@goodmis.org> wrote:
> On Mon, 25 Feb 2008, Gregory Haskins wrote:
>
>> It is redundant to wake the grantee task if it is already running
>
> This is only expensive for your adaptive mutex algorithm, not what is in
> there today. It belongs _after_ the adaptive mutex patch in the series.
>
> -- Steve
Fair enough.
-Greg
next prev parent reply other threads:[~2008-03-03 15:48 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-25 16:00 [(RT RFC) PATCH v2 0/9] adaptive real-time locks Gregory Haskins
2008-02-25 16:00 ` [(RT RFC) PATCH v2 1/9] allow rt-mutex lock-stealing to include lateral priority Gregory Haskins
2008-03-03 15:13 ` Steven Rostedt
2008-03-03 15:41 ` [(RT RFC) PATCH v2 1/9] allow rt-mutex lock-stealing to includelateral priority Gregory Haskins
2008-03-03 15:55 ` Steven Rostedt
2008-03-03 15:55 ` [(RT RFC) PATCH v2 1/9] allow rt-mutex lock-stealing toincludelateral priority Gregory Haskins
2008-02-25 16:00 ` [(RT RFC) PATCH v2 2/9] sysctl for runtime-control of lateral mutex stealing Gregory Haskins
2008-02-25 21:53 ` Pavel Machek
2008-02-25 22:57 ` Sven-Thorsten Dietrich
2008-02-25 23:00 ` Pavel Machek
2008-02-25 23:40 ` Sven-Thorsten Dietrich
2008-02-26 1:15 ` Gregory Haskins
2008-02-25 16:00 ` [(RT RFC) PATCH v2 3/9] rearrange rt_spin_lock sleep Gregory Haskins
2008-02-25 21:54 ` Pavel Machek
2008-02-26 0:45 ` Gregory Haskins
2008-02-25 16:00 ` [(RT RFC) PATCH v2 4/9] optimize rt lock wakeup Gregory Haskins
2008-03-03 15:37 ` Steven Rostedt
2008-03-03 15:41 ` Gregory Haskins [this message]
2008-02-25 16:01 ` [(RT RFC) PATCH v2 5/9] adaptive real-time lock support Gregory Haskins
2008-02-25 22:03 ` Pavel Machek
2008-02-26 0:48 ` Gregory Haskins
2008-02-26 15:03 ` Gregory Haskins
2008-02-26 18:06 ` Pavel Machek
2008-02-26 18:01 ` Gregory Haskins
2008-02-25 16:01 ` [(RT RFC) PATCH v2 6/9] add a loop counter based timeout mechanism Gregory Haskins
2008-02-25 22:06 ` Pavel Machek
2008-02-25 22:19 ` Greg KH
2008-02-25 22:21 ` Pavel Machek
2008-02-25 22:39 ` Sven-Thorsten Dietrich
2008-02-26 15:09 ` Gregory Haskins
2008-02-25 16:01 ` [(RT RFC) PATCH v2 7/9] adaptive mutexes Gregory Haskins
2008-02-25 22:09 ` Pavel Machek
2008-02-26 0:52 ` Gregory Haskins
2008-02-25 16:01 ` [(RT RFC) PATCH v2 8/9] adjust pi_lock usage in wakeup Gregory Haskins
2008-02-25 22:10 ` Pavel Machek
2008-02-25 16:01 ` [(RT RFC) PATCH v2 9/9] remove the extra call to try_to_take_lock Gregory Haskins
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