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Re: volanoMark regression with kernel 2.6.26-rc1

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From: Mike Galbraith
Subject: Re: volanoMark regression with kernel 2.6.26-rc1
Date: Monday, May 12, 2008 - 2:04 am

On Mon, 2008-05-12 at 13:02 +0800, Zhang, Yanmin wrote:


Here (Q6600), 2.6.26-rc2 CONFIG_USER_SCHED=y regression culprit for
volanomark is the same one identified for mysql+oltp.

(i have yet to figure out where the buglet lies, but there is definitely
one in there somewhere)

2.6.25.3-smp (baseline, no group scheduling)
test-1.log:Average throughput = 102412 messages per second
test-2.log:Average throughput = 99636 messages per second
test-3.log:Average throughput = 99373 messages per second

CONFIG_CGROUPS=n
CONFIG_USER_SCHED=y

2.6.26-rc2 - 18d95a2832c1392a2d63227a7a6d433cb9f2037e
test-1.log:Average throughput = 102341 messages per second
test-2.log:Average throughput = 101710 messages per second
test-3.log:Average throughput = 100572 messages per second


2.6.26-rc2 + 18d95a2832c1392a2d63227a7a6d433cb9f2037e
test-1.log:Average throughput = 79506 messages per second
test-2.log:Average throughput = 78168 messages per second
test-3.log:Average throughput = 78200 messages per second

CONFIG_CGROUPS=y
CONFIG_USER_SCHED=y

2.6.26-rc2 - 18d95a2832c1392a2d63227a7a6d433cb9f2037e
test-1.log:Average throughput = 103494 messages per second
test-2.log:Average throughput = 100832 messages per second
test-3.log:Average throughput = 98840 messages per second

2.6.26-rc2 + 18d95a2832c1392a2d63227a7a6d433cb9f2037e
test-1.log:Average throughput = 80132 messages per second
test-2.log:Average throughput = 79410 messages per second
test-3.log:Average throughput = 79609 messages per second

CONFIG_CGROUPS=y
CONFIG_CGROUP_SCHED=y

2.6.26-rc2 - 18d95a2832c1392a2d63227a7a6d433cb9f2037e
test-1.log:Average throughput = 103026 messages per second
test-2.log:Average throughput = 101152 messages per second
test-3.log:Average throughput = 102616 messages per second

2.6.26-rc2 + 18d95a2832c1392a2d63227a7a6d433cb9f2037e
test-1.log:Average throughput = 104174 messages per second
test-2.log:Average throughput = 101390 messages per second
test-3.log:Average throughput = 101212 messages per second

(but there are no task groups set up...)


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Messages in current thread:
volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Mon May 5, 7:06 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Mon May 5, 10:41 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Dhaval Giani, (Tue May 6, 4:52 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Andrew Morton, (Wed May 7, 12:04 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Ingo Molnar, (Wed May 7, 2:17 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Wed May 7, 2:33 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Dhaval Giani, (Wed May 7, 10:33 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Peter Zijlstra, (Wed May 7, 10:34 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Dhaval Giani, (Wed May 7, 10:42 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Peter Zijlstra, (Wed May 7, 11:58 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Wed May 7, 10:18 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Wed May 7, 10:20 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Wed May 7, 10:21 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Dhaval Giani, (Wed May 7, 10:32 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Dhaval Giani, (Wed May 7, 10:34 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Dhaval Giani, (Wed May 7, 10:39 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Dhaval Giani, (Wed May 7, 10:40 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Wed May 7, 10:53 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Wed May 7, 11:03 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Dhaval Giani, (Wed May 7, 11:04 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Wed May 7, 11:07 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Srivatsa Vaddagiri, (Wed May 7, 11:11 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Peter Zijlstra, (Wed May 7, 11:43 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Srivatsa Vaddagiri, (Fri May 9, 8:52 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Srivatsa Vaddagiri, (Fri May 9, 8:54 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Sun May 11, 6:39 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Dhaval Giani, (Sun May 11, 7:04 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Srivatsa Vaddagiri, (Sun May 11, 7:37 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Sun May 11, 8:33 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Srivatsa Vaddagiri, (Sun May 11, 9:52 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Sun May 11, 10:02 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Sun May 11, 10:43 pm)
Re: volanoMark regression with kernel 2.6.26-rc1, Mike Galbraith, (Mon May 12, 2:04 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Peter Zijlstra, (Mon May 12, 2:20 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Zhang, Yanmin, (Wed May 14, 2:22 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Srivatsa Vaddagiri, (Wed May 14, 6:44 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Mike Galbraith, (Wed May 14, 7:50 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Peter Zijlstra, (Wed May 14, 8:12 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Srivatsa Vaddagiri, (Thu May 15, 1:20 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Peter Zijlstra, (Thu May 15, 1:41 am)
Re: volanoMark regression with kernel 2.6.26-rc1, Srivatsa Vaddagiri, (Thu May 15, 10:10 am)