From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
To: Liu Ping Fan <qemulist@gmail.com>, Mel Gorman <mel@csn.ul.ie>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, Peter Zijlstra <peterz@infradead.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>
Subject: Re: [PATCH] numa: Use LAST_CPUPID_SHIFT to calculate LAST_CPUPID_MASK
Date: Fri, 14 Mar 2014 17:28:43 +0530 [thread overview]
Message-ID: <20140314115843.GD23154@linux.vnet.ibm.com> (raw)
In-Reply-To: <20140314115556.GA10406@linux.vnet.ibm.com>
Some performance numbers and perf stats with and without the fix.
(3.14-rc6)
----------
numa01
Performance counter stats for '/usr/bin/time -f %e %S %U %c %w -o start_bench.out -a ./numa01':
12,27,462 cs [100.00%]
2,41,957 migrations [100.00%]
1,68,01,713 faults [100.00%]
7,99,35,29,041 cache-misses
98,808 migrate:mm_migrate_pages [100.00%]
1407.690148814 seconds time elapsed
numa02
Performance counter stats for '/usr/bin/time -f %e %S %U %c %w -o start_bench.out -a ./numa02':
63,065 cs [100.00%]
14,364 migrations [100.00%]
2,08,118 faults [100.00%]
25,32,59,404 cache-misses
12 migrate:mm_migrate_pages [100.00%]
63.840827219 seconds time elapsed
(3.14-rc6 with fix)
-------------------
numa01
Performance counter stats for '/usr/bin/time -f %e %S %U %c %w -o start_bench.out -a ./numa01':
9,68,911 cs [100.00%]
1,01,414 migrations [100.00%]
88,38,697 faults [100.00%]
4,42,92,51,042 cache-misses
4,25,060 migrate:mm_migrate_pages [100.00%]
685.965331189 seconds time elapsed
numa02
Performance counter stats for '/usr/bin/time -f %e %S %U %c %w -o start_bench.out -a ./numa02':
17,543 cs [100.00%]
2,962 migrations [100.00%]
1,17,843 faults [100.00%]
11,80,61,644 cache-misses
12,358 migrate:mm_migrate_pages [100.00%]
20.380132343 seconds time elapsed
--
Thanks and Regards
Srikar Dronamraju
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next prev parent reply other threads:[~2014-03-14 11:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-14 11:55 [PATCH] numa: Use LAST_CPUPID_SHIFT to calculate LAST_CPUPID_MASK Srikar Dronamraju
2014-03-14 11:58 ` Srikar Dronamraju [this message]
2014-03-15 9:52 ` Aneesh Kumar K.V
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