If they run on different CPU's, then why do you have to yield() to get other threads to run, on an SMP kernel?

You don't!

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^5: Perl Threads and multi-core CPUs by BrowserUk
in thread Perl Threads and multi-core CPUs by haidut

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