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From: =?ISO-8859-1?Q?Bj=F6rn_Lundin?= <b.f.lundin@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: can someone help me with this code (explanation)
Date: Fri, 26 Sep 2014 16:15:51 +0200
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Date: 2014-09-26T16:15:51+02:00
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On 2014-09-26 14:49, J-P. Rosen wrote:
> Le 26/09/2014 13:48, Björn Lundin a écrit :
>> Some people in this group likes to optimize code.
>> Having a render-vouz between two tasks, I think,
>> is more expensive that calling a protected object.

> Hmm... Anything related to efficiency should be backed by measurements.

http://www.sigada.org/conf/sa98/papers/mueller.pdf

I did not read all of it, but the conclusion is that
context switches are bad for performance.
If a protected object can REPLACE a task, it
will show in measurements. (and they did measure)

However, it is tested with gnat 3.10,
so things might be different now.

And I now learned that render-vouz is spelled rendezvous


--
Björn