[OpenAFS] Re: Expected performance

Andrew Deason adeason@sinenomine.net
Thu, 19 May 2011 14:19:21 -0500

On Thu, 19 May 2011 14:57:16 -0400 (EDT)
Andy Cobaugh <phalenor@gmail.com> wrote:

> You can certainly get close if your disk for the disk cache is fast
> enough. I've seen close to 80MB/s with 15K SAS under ideal conditions.
> Re: client and server on the same machine - I've seen that actually
> result in lower performance. When you take the physical network out of
> the mix, Rx starts limiting you as a function of CPU usage it seems.

...or it's that you're writing to the same disk twice as much. If the
cache and /vicepX are on the same disk, it seems pretty intuitive that
it's going to be slower.

Andrew Deason