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From: Hitoshi Mitake <h.mitake@gmail.com>
To: linux-kernel@vger.kernel.org, cpufreq@vger.kernel.org
Subject: [RFC] Improving scheduler for asymmetric multi-core processor in  Google's summer of code
Date: Wed, 1 Apr 2009 23:58:51 +0900	[thread overview]
Message-ID: <a6b9f31a0904010758r23767adco16ea4ee45d7e158e@mail.gmail.com> (raw)

Hi,

I found an interesting problem, scheduling on Asymmetric multi-core processor.

According to this paper,

http://portal.acm.org/citation.cfm?id=1362694&dl=GUIDE&coll=GUIDE&CFID=28487975&CFTOKEN=68150071

taking performance asymmetry into consideration on multi-core CPUs can
improve scheduler performance.
(And I think discarding this could have bad consequences.)

So I have a question:
Is the current scheduler of Linux aware of possible performance
asymmetry of the cores?
By performance asymmetry I mean a case where different cores run on
different frequencies.

If something tackling this issue is not implemented yet,
I would like to work on that as a project of Google's summer of code.

Thanks

             reply	other threads:[~2009-04-01 14:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-01 14:58 Hitoshi Mitake [this message]
2009-04-02 11:13 ` Peter Zijlstra
2009-04-02 11:53   ` Hitoshi Mitake
     [not found]     ` <dc864f960904020946y5fcebfdfy7679d2bd9ab3dc5e@mail.gmail.com>
2009-04-03 14:51       ` Hitoshi Mitake

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