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From: Steven Rostedt <rostedt@goodmis.org>
To: Gregory Haskins <ghaskins@novell.com>
Cc: mingo@elte.hu, a.p.zijlstra@chello.nl, tglx@linutronix.de,
linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org,
bill.huey@gmail.com, kevin@hilman.org, cminyard@mvista.com,
dsingleton@mvista.com, dwalker@mvista.com, npiggin@suse.de,
dsaxena@plexity.net, ak@suse.de, pavel@ucw.cz, acme@redhat.com,
gregkh@suse.de, sdietrich@novell.com, pmorreale@novell.com,
mkohari@novell.com
Subject: Re: [(RT RFC) PATCH v2 4/9] optimize rt lock wakeup
Date: Mon, 3 Mar 2008 10:37:29 -0500 (EST) [thread overview]
Message-ID: <Pine.LNX.4.58.0803031036380.18766@gandalf.stny.rr.com> (raw)
In-Reply-To: <20080225160058.11268.96036.stgit@novell1.haskins.net>
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
next prev parent reply other threads:[~2008-03-03 15:37 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 [this message]
2008-03-03 15:41 ` Gregory Haskins
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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