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Re: [patch] Re: PostgreSQL pgbench performance regression in 2.6.23+

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From: Mike Galbraith <efault@...>
To: Ingo Molnar <mingo@...>, Greg Smith <gsmith@...>
Cc: Peter Zijlstra <peterz@...>, Dhaval Giani <dhaval@...>, lkml <linux-kernel@...>, Srivatsa Vaddagiri <vatsa@...>
Subject: Re: [patch] Re: PostgreSQL pgbench performance regression in 2.6.23+
Date: Saturday, June 7, 2008 - 8:50 am

Since I tested mysql+oltp and made the dang pdf of the results, I may
as well actually attach the thing <does that before continuing...>.

BTW, I have a question wrt avg_overlap.  When a wakeup cause the current
task to begin sharing CPU with a freshly awakened task, the current task
is tagged.. but the wakee isn't.  How come?  If one is sharing, so is
the other.

	-Mike
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Messages in current thread:
PostgreSQL pgbench performance regression in 2.6.23+, Greg Smith, (Wed May 21, 1:34 pm)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Thu May 22, 3:10 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Dhaval Giani, (Thu May 22, 4:28 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Thu May 22, 5:05 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Thu May 22, 6:34 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Thu May 22, 7:25 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Peter Zijlstra, (Thu May 22, 7:44 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Thu May 22, 8:09 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Peter Zijlstra, (Thu May 22, 8:24 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Greg Smith, (Fri May 23, 3:13 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Fri May 23, 6:00 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Ingo Molnar, (Fri May 23, 6:10 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Fri May 23, 9:05 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Fri May 23, 9:35 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Fri May 23, 6:15 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Greg Smith, (Fri May 23, 7:18 pm)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Fri May 23, 7:46 pm)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Greg Smith, (Mon May 26, 8:28 pm)
[patch] Re: PostgreSQL pgbench performance regression in 2.6..., Mike Galbraith, (Tue May 27, 1:59 am)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Greg Smith, (Fri Jun 6, 1:03 am)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Mike Galbraith, (Fri Jun 6, 2:13 am)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Mike Galbraith, (Sat Jun 7, 7:38 am)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Peter Zijlstra, (Sat Jun 7, 9:08 am)
[patch part 2] Re: [patch] Re: PostgreSQL pgbench performanc..., Mike Galbraith, (Sat Jun 7, 10:54 am)
Re: [patch part 2] Re: [patch] Re: PostgreSQL pgbench perfor..., Peter Zijlstra, (Sat Jun 7, 12:12 pm)
Re: [patch part 2] Re: [patch] Re: PostgreSQL pgbench perfor..., Mike Galbraith, (Sat Jun 7, 1:53 pm)
Re: [patch part 2] Re: [patch] Re: PostgreSQL pgbench perfor..., Mike Galbraith, (Sat Jun 7, 2:19 pm)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Mike Galbraith, (Sat Jun 7, 8:50 am)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Peter Zijlstra, (Sat Jun 7, 9:07 am)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Mike Galbraith, (Sat Jun 7, 10:16 am)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Peter Zijlstra, (Sat Jun 7, 12:16 pm)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Mike Galbraith, (Sat Jun 7, 1:56 pm)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Mike Galbraith, (Tue May 27, 4:20 am)
Re: [patch] Re: PostgreSQL pgbench performance regression in..., Mike Galbraith, (Tue May 27, 4:35 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Sat May 24, 4:08 am)
Re: PostgreSQL pgbench performance regression in 2.6.23+, Mike Galbraith, (Thu May 22, 9:16 am)