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SubjectRe: furwocks: Fast Userspace Read/Write Locks
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On Thursday 07 March 2002 07:50 am, Arjan van de Ven wrote:
> Rusty Russell wrote:
> > This is a userspace implementation of rwlocks on top of futexes.
>
> question: if rwlocks aren't actually slower in the fast path than
> futexes,
> would it make sense to only do the rw variant and in some userspace
> layer
> map "traditional" semaphores to write locks ?
> Saves half the implementation and testing....
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I m not in favor of that. The dominant lock will be mutexes.
--
-- Hubertus Franke (frankeh@watson.ibm.com)
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