> Are we sure that forcing semaphore overhead to the size of a page is a
> good idea? I'd much rather see a sleep/wakeup mechanism akin to wait
> queues be exported by the kernel so that userspace can implement a rich
> set of locking functions on top of that in whatever shared memory is
> being used.
The shared memory side of it has to be page sized. It doesn't mean you have
to have 1 semaphore per page but it does mean you have to allocate in page
sized chunks for mmu granularity
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This archive was generated by hypermail 2b29 : Thu Feb 28 2002 - 21:00:15 EST