[netperf-talk] Len was -1

Rick Jones rick.jones2 at hp.com
Mon Jun 12 09:12:55 PDT 2006


Miller, Jan L wrote:
> I keep seeing this error len was -1 or the error : data send error : no 
> error
> 
> The netperf client is windows 2000 and the server is Red Hat EL 
> 4(firewalls disabled). These are virtual machines running in VMware ESX. 

Which version of netperf?  And while running which of netperf's tests?

> Some small runs for 30 seconds or 15 minutes work, but most of the time, 
> the test ramps up for 10 or 20 minutes and then dies with the errors above.

Perhaps it was just wording - but netperf2 does not have a ramp-up - so 
if you could expand on that a bit it would be helpful.

> How can I find out what these errors mean? Can someone point me in the 
> right direction.

I'd start by searching for the matching text in the source code.  We can 
work backwards from there.

rick jones


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