From: Michael Wang <wangyun@linux.vnet.ibm.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Paul Turner <pjt@google.com>, Tejun Heo <tj@kernel.org>,
Mike Galbraith <efault@gmx.de>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [RFC PATCH 0/2] sched: simplify the select_task_rq_fair()
Date: Fri, 11 Jan 2013 16:15:37 +0800 [thread overview]
Message-ID: <50EFCA29.8020801@linux.vnet.ibm.com> (raw)
This patch set is trying to simplify the select_task_rq_fair() with
schedule balance map.
After get rid of the complex code and reorganize the logical, pgbench show
the improvement.
Prev:
| db_size | clients | tps |
+---------+---------+-------+
| 22 MB | 1 | 4437 |
| 22 MB | 16 | 51351 |
| 22 MB | 32 | 49959 |
| 7484 MB | 1 | 4078 |
| 7484 MB | 16 | 44681 |
| 7484 MB | 32 | 42463 |
| 15 GB | 1 | 3992 |
| 15 GB | 16 | 44107 |
| 15 GB | 32 | 41797 |
Post:
| db_size | clients | tps |
+---------+---------+-------+
| 22 MB | 1 | 11053 | +149.11%
| 22 MB | 16 | 55671 | +8.41%
| 22 MB | 32 | 52596 | +5.28%
| 7483 MB | 1 | 8180 | +100.59%
| 7483 MB | 16 | 48392 | +8.31%
| 7483 MB | 32 | 44185 | +0.18%
| 15 GB | 1 | 8127 | +103.58%
| 15 GB | 16 | 48156 | +9.18%
| 15 GB | 32 | 43387 | +3.8%
Please check the patch for more details about schedule balance map, they
currently based on linux-next 3.7.0-rc6, will rebase them to tip tree in
follow version.
Comments are very welcomed.
Test with:
12 cpu X86 server and linux-next 3.7.0-rc6.
Michael Wang (2):
[PATCH 1/2] sched: schedule balance map foundation
[PATCH 2/2] sched: simplify select_task_rq_fair() with schedule balance map
Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com>
---
core.c | 61 +++++++++++++++++++++++++++++
fair.c | 133 +++++++++++++++++++++++++++++++++-------------------------------
sched.h | 28 +++++++++++++
3 files changed, 159 insertions(+), 63 deletions(-)
next reply other threads:[~2013-01-11 8:15 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-11 8:15 Michael Wang [this message]
2013-01-11 8:17 ` [RFC PATCH 1/2] sched: schedule balance map foundation Michael Wang
2013-01-14 8:26 ` Namhyung Kim
2013-01-15 2:33 ` Michael Wang
2013-01-11 8:18 ` [RFC PATCH 2/2] sched: simplify select_task_rq_fair() with schedule balance map Michael Wang
2013-01-14 8:27 ` Namhyung Kim
2013-01-15 2:33 ` Michael Wang
2013-01-11 10:13 ` [RFC PATCH 0/2] sched: simplify the select_task_rq_fair() Nikunj A Dadhania
2013-01-15 2:20 ` Michael Wang
[not found] <1356588535-23251-1-git-send-email-wangyun@linux.vnet.ibm.com>
2013-01-09 9:28 ` Michael Wang
2013-01-12 8:01 ` Mike Galbraith
2013-01-12 10:19 ` Mike Galbraith
2013-01-14 9:21 ` Mike Galbraith
2013-01-15 3:10 ` Michael Wang
2013-01-15 4:52 ` Mike Galbraith
2013-01-15 8:26 ` Michael Wang
2013-01-17 5:55 ` Michael Wang
2013-01-20 4:09 ` Mike Galbraith
2013-01-21 2:50 ` Michael Wang
2013-01-21 4:38 ` Mike Galbraith
2013-01-21 5:07 ` Michael Wang
2013-01-21 6:42 ` Mike Galbraith
2013-01-21 7:09 ` Mike Galbraith
2013-01-21 7:45 ` Michael Wang
2013-01-21 9:09 ` Mike Galbraith
2013-01-21 9:22 ` Michael Wang
2013-01-21 9:44 ` Mike Galbraith
2013-01-21 10:30 ` Mike Galbraith
2013-01-22 3:43 ` Michael Wang
2013-01-22 8:03 ` Mike Galbraith
2013-01-22 8:56 ` Michael Wang
2013-01-22 11:34 ` Mike Galbraith
2013-01-23 3:01 ` Michael Wang
2013-01-23 5:02 ` Mike Galbraith
2013-01-22 14:41 ` Mike Galbraith
2013-01-23 2:44 ` Michael Wang
2013-01-23 4:31 ` Mike Galbraith
2013-01-23 5:09 ` Michael Wang
2013-01-23 6:28 ` Mike Galbraith
2013-01-23 7:10 ` Michael Wang
2013-01-23 8:20 ` Mike Galbraith
2013-01-23 8:30 ` Michael Wang
2013-01-23 8:49 ` Mike Galbraith
2013-01-23 9:00 ` Michael Wang
2013-01-23 9:18 ` Mike Galbraith
2013-01-23 9:26 ` Michael Wang
2013-01-23 9:37 ` Mike Galbraith
2013-01-23 9:32 ` Mike Galbraith
2013-01-24 6:01 ` Michael Wang
2013-01-24 6:51 ` Mike Galbraith
2013-01-24 7:15 ` Michael Wang
2013-01-24 7:47 ` Mike Galbraith
2013-01-24 8:14 ` Michael Wang
2013-01-24 9:07 ` Mike Galbraith
2013-01-24 9:26 ` Michael Wang
2013-01-24 10:34 ` Mike Galbraith
2013-01-25 2:14 ` Michael Wang
2013-01-24 7:00 ` Michael Wang
2013-01-21 7:34 ` Michael Wang
2013-01-21 8:26 ` Mike Galbraith
2013-01-21 8:46 ` Michael Wang
2013-01-21 9:11 ` Mike Galbraith
2013-01-15 2:46 ` Michael Wang
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