Re: PostgreSQL
Ignatios Souvatzis <[email protected]>
| Newsgroups | gmane.os.netbsd.devel.network,gmane.os.netbsd.devel.performance,gmane.os.netbsd.devel.general,gmane.os.netbsd.current |
|---|---|
| Message-ID | <[email protected]> |
On Wed, Feb 01, 2006 at 06:58:04PM -0800, Alfred Perlstein wrote: > Also, I'm pretty sure that synchronization between threads doesn't > require locked bus cycles, only atomic ops, again another saving. If this was the case, I'd be very interested in your definition of "locked bus cycle" vs. "atomic ops". In a multi-CPU (with non-shared cache) system, you have to implement atomic operations via some sort of locked bus cycles. This is independent of the thread vs. processes-with-a-shared-variable question. Regards, -is P.S.: Why, exactly, is this discussion on tech-net, among others? -- seal your e-mail: http://www.gnupg.org/