[PVFS-users] Re: version 1.6.2 slower than 1.60?

[Robert Latham]

On Tue, Mar 23, 2004 at 05:07:22PM -0600, Jeremy Enos wrote:
> I've finally had the time to test... and I'm seeing that 1.6.1 is 
> performing as poorly as 1.6.2.  Both are terrible drops relative to 1.6.0, 
> with the crude dd test I've described at the start of this thread.
> I'd really like to get something newer into OSCAR than 1.6.0, but with this 
> performance problem, I'm inclined to leave it at 1.6.0 for the time 
> being.  What should I try next?

Sorry for the long delay in getting back to you...

I've tried to recreate this problem on a cluster here with pvfs-test
(16 io servers, 64 clients, 64k blocksize, 20 iterations) and cannot
see any significant difference in performance.

It might well be that something changed in the pvfs-kernel code, but
that is harder for me to test.

==rob

-- 
Rob Latham
Mathematics and Computer Science Division    A215 0178 EA2D B059 8CDF
Argonne National Labs, IL USA                B29D F333 664A 4280 315B