Re: Any lightweight way for one thread to force another thread to suspend execution?

[Andi Kleen]

"Eric Smith" <eric@xxxxxxxxxxxx> writes:
>
> What I've thought about so far (but haven't tested) for thread A
> to suspend thread B is to use a signal and two pthread conditions:

Any such mechanism will need a syscall, and it's unlikely that
any syscall will get much cheaper than a kill(SIGSTOP) 

-Andi
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