[OpenAFS] Tips for increasing throughput

[Jeffrey Altman]

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On 8/31/2011 4:07 AM, Ken Elkabany wrote:
> Hi,
>=20
> On a network capable of scp-ing files between machines at 60MB/sec, we
> are only able to achieve 2-3MB/sec of throughput when using AFS. We've
> been conducting tests on 300MB files, by copying them from the /afs/*
> mount to the local filesystem with memcache enabled. In production, we
> will not be using memcache, but we wanted to eliminate the overhead of
> the on-disk cache manager. We've tried tweaking our options as follows:=

> "-verbose -nosettime -memcache -chunksize 20 -stat 2800 -daemons 5
> -volumes 128". The most important option is the chunksize, which did no=
t
> have a measurable effect. Any other tips?
>=20
> Thanks!
> Ken

Using what versions of OpenAFS on the client and file server?



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