Re: Spinlock backoff algorithm

Tom,

> I've got one upstairs (HPPA), and I believe that it's actually a pretty
> common situation in scientifically-oriented workstations from a few
> years back.

Last I checked, scientific workstations aren't exactly a common platform for 
PostgreSQL servers.

The question is, for our most common platforms (like AMD and Intel) is the FPU 
notably slower/more contended than integer division?  I'd the impression that 
it was, but my knowledge of chip architectures is liable to be out of date.

Can we have a hardware geek speak up?

-- 
Josh Berkus
PostgreSQL @ Sun
San Francisco