> > > We could use POSIX spinlocks/semaphores now but we
> > > don't because of performance, right?
> >
> > No. As long as no one proved with test that mutexes are bad for
> > performance...
> > Funny, such test would require ~ 1 day of work.
>
> Good question. I know the number of function calls to spinlock stuff
> is huge. Seems real semaphores may be a big win on multi-cpu boxes.
Ok, being tired of endless discussions I'll try to use mutexes instead
of spinlocks and run pgbench on my Solaris WS 10 and E4500 (4 CPU) boxes.
Vadim