CMPXCHG - all or nothing

By: Henrik S (hstahl.delete@this.nospam.bea.nothanks.com), March 20, 2008 12:03 pm
Room: Moderated Discussions
>(Me, I think that if they want run-anywhere, they should
>just specify it to be strong. Anything else simply isn't
>going to be run-anywhere, since people will test it on
>the much mode common strongly ordered architectures).

I suspect the reason why this hasn't become a bigger issue is that weakly ordered architectures are not that common with Joe Average, and big commercial Java apps (say WebLogic Server) are verified separately on each supported platform anyway.

The reason why reordering is allowed must beimproved performance. But does it really make a large difference?

-- Henrik
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