Messages in this thread | | | Date | Tue, 07 Dec 1999 18:45:37 -0100 | From | Folkert van Heusden <> | Subject | Re: spin_unlock optimization(i386) |
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Gerard Roudier wrote: > In my opinion, 2 agents that write to the same location (current_state) > without any synchronisation can only mess up any kind of ordering that > applies to the view of all agents observing a single agent.
Speaking about messing up; also writing to 2 bytes located after each other by 2 processors can mess up things. On a Sparc processor for example. e.g.:
char dummy[2];
when processor 1 writes to dummy[0] at the same time as processor 2 writes to dummy[1], you'll get into trouble.
...
Ehrm, I'm not sure why I wrote it down here since it has nothing to do with the thread. Sorry for that, probably my ego needing some boost.
-- ------------------------------------------------------------ Folkert van Heusden some e-mail addresses: f.v.heusden@ftr.nl, flok99@dds.nl mobile phone: +31-6-22390057
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