Messages in this thread | | | Subject | Re: Netperf UDP_STREAM regression due to not sending IPIs in ttwu_queue() | From | Eric Dumazet <> | Date | Wed, 03 Oct 2012 12:22:11 +0200 |
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On Wed, 2012-10-03 at 10:47 +0100, Mel Gorman wrote: > On Tue, Oct 02, 2012 at 03:48:57PM -0700, Rick Jones wrote:
> > PS - I trust it is the receive-side throughput being reported/used > > with UDP_STREAM :) > > Good question. Now that I examine the scripts, it is in fact the sending > side that is being reported which is flawed. Granted I'm not expecting any > UDP loss on loopback and looking through a range of results, the > difference is marginal. It's still wrong to report just the sending side > for UDP_STREAM and I'll correct the scripts for it in the future.
You can have drops even on loopback if the receiver doesnt drain its socket receive queue fast enough.
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