Re: PostgreSQL performance on various distribution stock kernels

Damon Hart <dhcom@sundial.com> writes:
> So, what's different between these tests? I'm seeing performance
> differences of between +65% to +90% transactions per second of the
> OpenVZ kernel running on the HN over the stock Fedora 8 kernel. Is
> this reflective of different emphasis between RHEL and Fedora kernel
> builds?  Some OpenVZ optimization on top of the RHEL5 build? Something
> else? Where should I look?

Considering how raw Fedora 8 is, I think what you've probably found is a
performance bug that should be reported to the kernel hackers.

Just to confirm: this *is* the same filesystem in both cases, right?

            regards, tom lane