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From: Peter Williams <pwil3058@bigpond.net.au>
To: Al Boldi <a1426z@gawab.com>
Cc: linux-kernel@vger.kernel.org, Jake Moilanen <moilanen@austin.ibm.com>
Subject: Re: [ANNOUNCE][RFC] PlugSched-6.3.1 for  2.6.16-rc5
Date: Wed, 05 Apr 2006 09:20:06 +1000	[thread overview]
Message-ID: <4432FF26.6050207@bigpond.net.au> (raw)
In-Reply-To: <200604041627.14871.a1426z@gawab.com>

Al Boldi wrote:
> Peter Williams wrote:
>> Al Boldi wrote:
>>> The default values for spa make it really easy to lock up the system.
>>> Is there a module to autotune these values according to cpu/mem/ctxt
>>> performance?
>> Jake Moilanen had a genetic algorithm autotuner for Zaphod at one time
>> which I believe he ported over to PlugSched
> 
> Would this be a load-adaptive dynamic tuner?

Yes.

> 
> What I meant was a lock-preventive static tuner.  Something that would take 
> hw-latencies into account at boot and set values for non-locking console 
> operation.

I'm not sure what you mean here.  Can you elaborate?

> 
>> I could generate a patch to gather the statistic again and make them
>> available via /proc if you would like to try a user space version of
>> Jake's work (his was in kernel).
> 
> That would be great!

OK, I'll put it on my "to do" list.

Peter
-- 
Peter Williams                                   pwil3058@bigpond.net.au

"Learning, n. The kind of ignorance distinguishing the studious."
  -- Ambrose Bierce

  reply	other threads:[~2006-04-04 23:20 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-04-03 11:59 [ANNOUNCE][RFC] PlugSched-6.3.1 for 2.6.16-rc5 Al Boldi
2006-04-03 12:13 ` Paolo Ornati
2006-04-03 23:04 ` Peter Williams
2006-04-03 23:29   ` Con Kolivas
2006-04-04  0:01     ` Peter Williams
2006-04-04  0:12       ` Con Kolivas
2006-04-04  1:29         ` Peter Williams
2006-04-04 13:27           ` Al Boldi
2006-04-04 13:27   ` Al Boldi
2006-04-04 23:17     ` Peter Williams
2006-04-05  8:16       ` Al Boldi
2006-04-05 22:53         ` Peter Williams
2006-04-07 21:32           ` Al Boldi
2006-04-08  1:29             ` Peter Williams
2006-04-08 20:31               ` Al Boldi
2006-04-09  2:58                 ` Peter Williams
2006-04-09  5:04                   ` Al Boldi
2006-04-09 23:53                     ` Peter Williams
2006-04-10 14:43                       ` Al Boldi
2006-04-11  2:07                         ` Peter Williams
2006-04-03 23:27 ` Peter Williams
2006-04-04 13:27   ` Al Boldi
2006-04-04 23:20     ` Peter Williams [this message]
2006-04-05  8:16       ` Al Boldi
  -- strict thread matches above, loose matches on Subject: below --
2006-02-28 22:32 Peter Williams
2006-03-01  2:36 ` Peter Williams
2006-04-02  2:04   ` Peter Williams
2006-04-02  6:02     ` Con Kolivas

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