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Date: Tue, 23 Aug 2005 07:46:09 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Karsten Wiese <annabellesgarden@yahoo.de>, dwalker@mvista.com,
       george anzinger <george@mvista.com>, Adrian Bunk <bunk@stusta.de>,
       Sven-Thorsten Dietrich <sven@mvista.com>,
       LKML <linux-kernel@vger.kernel.org>,
       Thomas Gleixner <tglx@linutronix.de>
Subject: Re: 2.6.13-rc6-rt6
Message-ID: <20050823054609.GA26707@elte.hu>
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* Steven Rostedt <rostedt@goodmis.org> wrote:

> Here's a patch to move the pi_lock out of the "fast path".  Thus, only 
> threads that need to do PI will need to take it.

ok, looks good, applied it. I've renamed p->rt_lock to p->pi_lock. The 
patch gave a 10% wall-clock improvement in hackbench numbers on an 8-way 
box. (This box has pretty high cachemiss costs, so the positive effects 
of such patches show up nicely.)

	Ingo