[netperf-talk] Len was -1

[Miller, Jan L]

I will have to get the version they are using from VMware. They also
hold the source code so I don't have the ability to look at it to find
where the len was -1 is coming from. 

The test is the TCP_STREAM test.

By ramping up I mean that I could look on the performance charts for
about 10-15 minutes and see the networking was actually doing some heavy
activity on the nics. Then all of a sudden the traffic just stopped. 

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-----Original Message-----
From: Rick Jones [mailto:rick.jones2 at hp.com] 
Sent: Monday, June 12, 2006 12:13 PM
To: Miller, Jan L
Cc: netperf-talk at netperf.org
Subject: Re: [netperf-talk] Len was -1

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