Re: [patch part 2] Re: [patch] Re: PostgreSQL pgbench performance regression in 2.6.23+

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To: Peter Zijlstra <peterz@...>
Cc: Greg Smith <gsmith@...>, Ingo Molnar <mingo@...>, Dhaval Giani <dhaval@...>, lkml <linux-kernel@...>, Srivatsa Vaddagiri <vatsa@...>
Date: Saturday, June 7, 2008 - 1:53 pm

On Sat, 2008-06-07 at 18:12 +0200, Peter Zijlstra wrote:

Without last_preempter, you'd have all tasks having a minimum runtime.
That would harm the single cpu starve.c testcase for sure, and anything
like it.  I wanted to target this pretty accurately to 1:N type loads.

If you mean no trying to disperse preempters, I can test without it.

	-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+, 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+, Mike Galbraith, (Fri May 23, 6:00 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+, Mike Galbraith, (Fri May 23, 7:46 pm)
Re: [patch part 2] Re: [patch] Re: PostgreSQL pgbench perfor..., Mike Galbraith, (Sat Jun 7, 1:53 pm)
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)