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Re: kernels 3.4 slower due to allocation workqueue

To: xfs@xxxxxxxxxxx
Subject: Re: kernels 3.4 slower due to allocation workqueue
From: Yann Dupont <Yann.Dupont@xxxxxxxxxxxxxx>
Date: Tue, 16 Apr 2013 10:37:01 +0200
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Le 16/04/2013 09:24, Yann Dupont a écrit :
Le 15/04/2013 15:45, Mark Tinguely a écrit :

Here are the allocation worker changes.


Hello mark,  thanks for you answer

The biggest performance commit should be aa292847, which limits the callers to the worker.

Yes. This is the case :

3.4.39 with aa292847b9fc6e187547110de833a7d3131bbddf applied gives full speed again, at least on this very specific test. Will try to have a more global view of the effects on other tests.

Thanks,

--
Yann Dupont - Service IRTS, DSI Université de Nantes
Tel : 02.53.48.49.20 - Mail/Jabber : Yann.Dupont@xxxxxxxxxxxxxx

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