[OpenAFS] OpenAFS speed - some benchmarks

Derrick J Brashear shadow@dementia.org
Tue, 24 Jun 2003 14:54:34 -0400 (EDT)


On Tue, 24 Jun 2003, Andrei Maslennikov wrote:

> Well, if we escape cache on the client and do a direct
> copy to/from fileserver we gain almost a factor of 2
> on reads and up to 25% on writes (we used the "Atrans"
> binary authored by Rainer Toebbicke in our tests).

Right, I noticed. There's an "afscp" in src/tests which basically is same
idea, I assume.

> Without cache on client, AFS is still some 25% less
> performant than NFS. This is (fileserver+rx). Of course,
> namei contributes visibly. We could probably estimate namei
> vs inode using Solaris x86 on a recent pc hardware (may be
> rather tricky, as the newest hardware may be not supported
> by this os).

You only need a console and a disk driver, right?