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From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: linux-kernel@vger.kernel.org, Jason Baron <jbaron@redhat.com>,
	Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
	Max Krasnyansky <maxk@qualcomm.com>
Subject: Re: [PATCH 0/3] stop_machine enhancements and simplifications
Date: Tue, 8 Jul 2008 18:21:09 +0200	[thread overview]
Message-ID: <200807081821.09722.borntraeger@de.ibm.com> (raw)
In-Reply-To: <200807081750.55536.rusty@rustcorp.com.au>

Am Dienstag, 8. Juli 2008 schrieb Rusty Russell:
> Hi all,
> 
>    Here are the three stop_machine patches I've queued for the next merge
> window.  The first two are pretty well tested via linux-next, the last is
> recent but fairly straightforward.

Hmm, these patches dont fit on kvm.git so I tested the version from 
linux-next.

When using linux-next in a kvm guest on a linux-next host this patch set 
really improves the situation. On a guest with 64 cpus on a 1 cpu host 
stop_machine_run seems to finish immediately. 

I still have some strange problems with 25 guests * 64 cpus on one host cpu, 
but this requires further analysis.

IMHO this patch set is really an improvement to the earlier version:

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>


  parent reply	other threads:[~2008-07-08 16:21 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-08  7:50 Rusty Russell
2008-07-08  7:56 ` [PATCH 1/3] stop_machine: add ALL_CPUS option Rusty Russell
2008-07-08  7:56   ` [PATCH 2/3] stop_machine: simplify Rusty Russell
2008-07-08  8:01     ` [PATCH 3/3] stop_machine: use cpu mask rather than magic numbers Rusty Russell
2008-07-08 11:44     ` [PATCH 2/3] stop_machine: simplify Akinobu Mita
2008-07-08 13:11       ` Rusty Russell
2008-07-08 15:02         ` Akinobu Mita
2008-07-09  2:18           ` Rusty Russell
2008-07-08 14:27     ` Mathieu Desnoyers
2008-07-09  2:11       ` Rusty Russell
2008-07-09 12:42         ` Mathieu Desnoyers
2008-07-10  0:30     ` Max Krasnyansky
2008-07-11  7:51       ` Rusty Russell
2008-07-11 13:12         ` Mathieu Desnoyers
2008-07-12  5:07           ` Rusty Russell
2008-07-10 21:07     ` [PATCH -next-20080709] fixup stop_machine use cpu mask vs ftrace Milton Miller
2008-07-11  6:43       ` Rusty Russell
2008-07-11  7:46       ` Ingo Molnar
2008-07-11  8:55         ` Ingo Molnar
2008-07-11 12:34         ` Rusty Russell
2008-07-08 16:21 ` Christian Borntraeger [this message]
2008-07-08 20:10 ` [PATCH 0/3] stop_machine enhancements and simplifications Jason Baron
2008-07-09  3:29   ` Mathieu Desnoyers

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