linux-kernel - Re: [2.6.25-rc5-mm1][regression] ia64: hackbench doesn't finish >12 hour

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Message-Id: <20080318084314.FF0F.KOSAKI.MOTOHIRO@jp.fujitsu.com>
Date:	Tue, 18 Mar 2008 08:44:38 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	"Luck, Tony" <tony.luck@...el.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	"LKML" <linux-kernel@...r.kernel.org>,
	<linux-ia64@...r.kernel.org>, "Yu, Fenghua" <fenghua.yu@...el.com>,
	"Hidetoshi Seto" <seto.hidetoshi@...fujitsu.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Subject: Re: [2.6.25-rc5-mm1][regression] ia64: hackbench doesn't finish >12 hour

Hi

> > % ./hackbench 130 process 500
> 
> I'd like to reproduce your results so I can make a new
> version of the ptc.g patch that doesn't have this regression.

Great.


> I found this version (that claims to be the latest) of hackbench.c
> 
> http://people.redhat.com/mingo/cfs-scheduler/tools/hackbench.c
> 
> Is this the one you used?

Yes, I used it.


> What was the configuration of your machine (how many cpus, how
> much memory)?

cpu: Itanium2 x8
mem: 8GB(4GB x2 node)


Thanks.


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