Kenneth Culver wrote:
> I don't know if anyone is working on that, but from what I could tell, in
> a lot of cases, enabling the hyperthreading actually *decreased*
> performance of a lot of multithreaded and single threaded apps.
It requires extensive compiler support.
If you read the Intel documentation on how to write a compiler
that does the right things, it reads like a list of sixteen
"don't do this thing GCC did, do this instead".
So the answer is really a question... does the original poster
have their patches to GCC ready so that we can compile code
that tests hyperthreading?
-- Terry
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