[OpenAFS-devel] performance issues with 1.4.8 and above

[Derrick Brashear]

On Thu, Apr 9, 2009 at 8:19 AM, Felix Frank <Felix.Frank@desy.de> wrote:
> Hi,
>
> I've been busy doing a couple of stress tests lately. A disturbing finding
> is that the 1.4.7 fileserver achieves nearly 25% higher data throughput than
> 1.4.8 and 1.4.10 respectively.

My suspicion: force jumbograms to be on for your environment.

The issue was they could not previously be turned off, regardless of
switch, due to a programming error in OpenAFS since 1.0.