linux-kernel - Re: [RFC] Add markers into semaphore primitives

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Message-Id: <1194968014.8255.23.camel@twins>
Date:	Tue, 13 Nov 2007 16:33:34 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	"David J. Wilder" <dwilder@...ibm.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [RFC] Add markers into semaphore primitives

On Mon, 2007-11-12 at 16:52 -0800, David J. Wilder wrote:
> This patch adds several markers around semaphore primitives.
> Along with a tracing application this patch can be useful for measuring
> kernel semaphore usage and contention.

It would be much better to help in eradicating every last semaphore user
and then these statistics will be provided by lockstat.

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