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Name: Stephan Keil
eMail: Stephan.Keil@gmx.de
Date: June 16, 2003 at 06:07:58
Subject: Re: Hyperthreading and 'lock' prefix
In Reply To: Re: Hyperthreading and 'lock' prefix by
Peter M. on June 11, 2003 at 05:07:55
Text: | Now since the LOCK# mechanism also keeps other bus mastering agents away from the resource you're trying to access, the general rule is to use it whenever you need to do an atomic access - no matter how many CPUs there are.

In general you are right. But with my special problem I
incrementing/decrementing some reference counts, which is done by
processors only. Unfortunately these reference counts are
accessed frequently and I cannot afford the performance penalty.


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