[netperf-talk] Any way to limit bandwidth?

[Legend Overfiend]

----- Original Message -----
From: "Rick Jones" <rick.jones2 at hp.com>
To: "Legend Overfiend" <legendoftheoverfiend at technologist.com>
Subject: Re: [netperf-talk] Any way to limit bandwidth?
Date: Wed, 30 Nov 2005 15:28:04 -0800

> 
> Legend Overfiend wrote:
> > Net perf is overwhelming the memory allocation routines of my driver
> > during UDP uplink, but I'd still like to see the maximum performance of
> > my connection. If I could limit the transmit speed to something
> > reasonable, like 8MBps, then I should easily get my results. I don't see
> > this option in the man page. Is it possible?
> 
> And what happens when your driver memory allocation routines are 
> overwhelmed? I would expect the driver to simply discard the packet 
> and move-on, and all should be well.
> 
> Anyway, if you configure with the intervals support, you can then 
> specify a burst size and inter-burst interval that will have the 
> effect of pacing the rate at which data is sent by netperf for UDP. 
>   I'm ass-u-me-ing that you are using netperf 2.4.X - best to state 
> the version :)
> 
> There may be something about intervals support in the manual rather 
> than the manpage - look under doc/
> 
> happy benchmarking,
> 
> rick jones

Thanks, I see that in the manual. I will compile that in.

I was running on OS X and running out of memory buffers. I didn't care about the discarded transmit packets, but for some reason I had no buffers for receive either.


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