From: Michael Neuling <mikey@neuling.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Peter Zijlstra <peterz@infradead.org>
Cc: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/3] sched: asymmetrical packing for POWER7 SMT4
Date: Tue, 08 Jun 2010 14:57:02 +1000 [thread overview]
Message-ID: <1275973022.91203.586435002889.qpush@pale> (raw)
This patch series implements asymmetric SMT packing which ensures
consistently good performance on POWER7. Without this series, tasks
will vary in performance by around +/-30% on POWER7
This new version is based on help from Vatsa and Vaidy in an attempt
to answer concerns that Peter Zijlstra had about the original series.
The 1st patch is a fix for SMT4 in general.
The 2nd adds actual the asymmetrical packing infrastructure.
The 3rd adds the powerpc specific hooks for POWER7.
next reply other threads:[~2010-06-08 4:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-08 4:57 Michael Neuling [this message]
2010-06-08 4:57 ` [PATCH 2/3] sched: add asymmetric group packing option for sibling domain Michael Neuling
2010-06-08 4:57 ` [PATCH 1/3] sched: fix capacity calculations for SMT4 Michael Neuling
2010-06-08 4:57 ` [PATCH 3/3] powerpc: enabled asymmetric SMT scheduling on POWER7 Michael Neuling
2010-06-09 8:54 ` Benjamin Herrenschmidt
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