From: Michael Neuling <mikey@neuling.org>
To: Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org, Ingo Molnar <mingo@elte.hu>,
Gautham R Shenoy <ego@in.ibm.com>,
linux-kernel@vger.kernel.org,
Suresh Siddha <suresh.b.siddha@intel.com>
Subject: [PATCH 0/5] sched: asymmetrical packing for POWER7 SMT4
Date: Fri, 09 Apr 2010 16:21:18 +1000 [thread overview]
Message-ID: <1270794078.794237.347827867455.qpush@pale> (raw)
This patch series implements asymmetric SMT packing which ensures
consistently good performance on POWER7.
I'm no scheduler expert so these probably need some review. It works
for my simple test case on a POWER7 with SMT4. I can now run a number
of CPU bound processes and they are pulled down to lower threads
giving the best performance consistently.
Suresh: some of this touches code you changed recently, so you may
want to test in your environment.
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.
The 4th and 5th are fixes required for packing to work.
next reply other threads:[~2010-04-09 6:21 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-09 6:21 Michael Neuling [this message]
2010-04-09 6:21 ` [PATCH 4/5] sched: Mark the balance type for use in need_active_balance() Michael Neuling
2010-04-13 12:29 ` Peter Zijlstra
2010-04-15 4:15 ` Michael Neuling
2010-04-09 6:21 ` [PATCH 2/5] sched: add asymmetric packing option for sibling domain Michael Neuling
2010-04-13 12:29 ` Peter Zijlstra
2010-04-14 6:09 ` Michael Neuling
2010-04-09 6:21 ` [PATCH 3/5] powerpc: enabled asymmetric SMT scheduling on POWER7 Michael Neuling
2010-04-09 6:48 ` Michael Neuling
2010-04-09 6:21 ` [PATCH 1/5] sched: fix capacity calculations for SMT4 Michael Neuling
2010-04-13 12:29 ` Peter Zijlstra
2010-04-14 4:28 ` Michael Neuling
2010-04-16 13:58 ` Peter Zijlstra
2010-04-18 21:34 ` Michael Neuling
2010-04-19 14:49 ` Peter Zijlstra
2010-04-19 20:45 ` Michael Neuling
2010-04-29 6:55 ` Michael Neuling
2010-05-31 8:33 ` Peter Zijlstra
2010-06-01 22:52 ` Vaidyanathan Srinivasan
2010-06-03 8:56 ` Peter Zijlstra
2010-06-07 15:06 ` Srivatsa Vaddagiri
2010-04-09 6:21 ` [PATCH 5/5] sched: make fix_small_imbalance work with asymmetric packing Michael Neuling
2010-04-13 12:29 ` Peter Zijlstra
2010-04-14 1:31 ` Suresh Siddha
2010-04-15 5:06 ` Michael Neuling
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