Tom Lane writes:
> How efficient are POSIX semaphores, anyway? I wonder if we couldn't
> also replace spinlocks with them...
There are POSIX spinlocks as well, though I haven't actually seen one...
> > BTW, should I expect that POSIX also ignored the SysV IPC spec for
> > shared memory?
>
> > Yes. POSIX.1 standardizes mmap instead.
>
> Another TODO item I suppose :-(
It's already there.
--
Peter Eisentraut peter_e@gmx.net http://yi.org/peter-e/