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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Structure of the multitasking server
Date: Fri, 13 Mar 2015 09:15:09 +0100
Date: 2015-03-13T09:15:09+01:00	[thread overview]
Message-ID: <uu0on2a375l0.1lixh9dqxrbh5.dlg@40tude.net> (raw)
In-Reply-To: bf5e1244-c5cb-475b-8555-de190aae4ae8@googlegroups.com

On Thu, 12 Mar 2015 15:39:02 -0700 (PDT), gautier_niouzes@hotmail.com
wrote:

> Le jeudi 12 mars 2015 22:38:50 UTC+1, Jacob Sparre Andersen a écrit :
> 
>> This looks like a busy-wait to me.  Is it?  If not, why not?
> 
> Seems so. Is it bad?

Yes.

> Well it may eat one core or CPU's performance.
> Is it better with a small delay (see below) to cool down the boss ?

You could add a wakeup event to prevent busy waiting. An alternative would
be a waitable jobs queue.

BTW, you seem have another problem. The drivers/workers are serviced always
in the same order which would systematically choke ones near to the list
end. A usual solution of this problem is list walking entered at the point
where it was left.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de

  reply	other threads:[~2015-03-13  8:15 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-19 12:21 Structure of the multitasking server Maciej Sobczak
2008-09-19 13:34 ` Jean-Pierre Rosen
2008-09-19 17:02   ` Dmitry A. Kazakov
2008-09-21 17:30     ` Maciej Sobczak
2008-09-21 19:24       ` Dmitry A. Kazakov
2008-09-21 21:27         ` Maciej Sobczak
2008-09-22  8:12           ` Dmitry A. Kazakov
2008-09-22 12:47             ` Maciej Sobczak
2008-09-22 14:11               ` Dmitry A. Kazakov
2008-09-23  8:07                 ` Maciej Sobczak
2008-09-23  9:37                   ` Dmitry A. Kazakov
2008-09-23 10:47                   ` Jean-Pierre Rosen
2008-09-21 17:23   ` Maciej Sobczak
2008-09-22  8:23     ` Jean-Pierre Rosen
2015-03-12 16:07   ` gautier_niouzes
2015-03-12 21:38     ` Jacob Sparre Andersen
2015-03-12 22:39       ` gautier_niouzes
2015-03-13  8:15         ` Dmitry A. Kazakov [this message]
2015-03-13 20:16           ` gautier_niouzes
2015-03-13 20:47             ` Dmitry A. Kazakov
2015-03-15  7:43               ` gautier_niouzes
2015-03-15  8:35                 ` Simon Wright
2015-03-15  8:52                 ` J-P. Rosen
2015-03-15  9:21                   ` Jacob Sparre Andersen
2015-03-15 16:04                     ` Brad Moore
2015-03-13 23:04             ` Randy Brukardt
2015-03-14  8:22               ` Simon Wright
2008-09-19 23:01 ` anon
2008-09-21 17:37   ` Maciej Sobczak
2008-09-22  2:32     ` anon
2008-09-22 13:05       ` Maciej Sobczak
2008-09-23  9:25         ` anon
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