linux-kernel - Re: [PATCH 1/2] ipc/sem.c: Race in sem

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Message-ID: <1379232411.5545.183.camel@marge.simpson.net>
Date:	Sun, 15 Sep 2013 10:06:51 +0200
From:	Mike Galbraith <efault@....de>
To:	Manfred Spraul <manfred@...orfullife.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Rik van Riel <riel@...hat.com>,
	Davidlohr Bueso <davidlohr.bueso@...com>, hhuang@...hat.com
Subject: Re: [PATCH 1/2] ipc/sem.c: Race in sem_lock()

On Sun, 2013-09-15 at 08:09 +0200, Mike Galbraith wrote:

> Humongous improvements...

(a couple sem-waitzero numbers)

master:  Cpus 64, interleave 1 delay 0: 10039494796 in 30 secs
3.10.10: Cpus 64, interleave 1 delay 0:   129236313 in 30 secs

(rapidly scrolling micro-font bench vs reality disclaimer)

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