linux-kernel - Re: [PATCH 13/14] x86/ticketlock: add slowpath logic

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Message-ID: <4D37338E.8030509@goop.org>
Date:	Wed, 19 Jan 2011 10:55:10 -0800
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	vatsa@...ux.vnet.ibm.com
CC:	Peter Zijlstra <peterz@...radead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Nick Piggin <npiggin@...nel.dk>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	Américo Wang <xiyou.wangcong@...il.com>,
	Eric Dumazet <dada1@...mosbay.com>,
	Jan Beulich <JBeulich@...ell.com>, Avi Kivity <avi@...hat.com>,
	Xen-devel <xen-devel@...ts.xensource.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Linux Virtualization <virtualization@...ts.linux-foundation.org>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>,
	suzuki@...ibm.com
Subject: Re: [PATCH 13/14] x86/ticketlock: add slowpath logic

On 01/19/2011 10:39 AM, Srivatsa Vaddagiri wrote:
> I have tested quite extensively with booting a 16-vcpu guest (on a 16-pcpu host)
> and running kernel compine (with 32-threads). Without this patch, I had
> difficulty booting/shutting-down successfully (it would hang mid-way).

Sounds good.  But I like to test with "make -j 100-200" to really give
things a workout.

    J
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