[dpdk-dev] Performance regression in DPDK 1.8/2.0
De Lara Guarch, Pablo
pablo.de.lara.guarch at intel.com
Tue Apr 28 13:32:32 CEST 2015
> -----Original Message-----
> From: Richardson, Bruce
> Sent: Tuesday, April 28, 2015 11:55 AM
> To: Paul Emmerich
> Cc: De Lara Guarch, Pablo; dev at dpdk.org
> Subject: Re: [dpdk-dev] Performance regression in DPDK 1.8/2.0
> On Tue, Apr 28, 2015 at 12:43:16PM +0200, Paul Emmerich wrote:
> > Hi,
> > sorry, I mixed up the hardware I used for my tests.
> > Paul Emmerich <emmericp at net.in.tum.de>:
> > > CPU: Intel(R) Xeon(R) CPU E3-1230 v2
> > > TurboBoost and HyperThreading disabled.
> > > Frequency fixed at 3.30 GHz via acpi_cpufreq.
> > The CPU frequency was fixed at 1.60 GHz to enforce
> > a CPU bottleneck.
> > My original post said that I used a Xeon E5-2620 v3
> > at 1.2 GHz, this is incorrect. The calculation for Cycles/Pkt
> > in the original post used the correct 1.6 GHz figure, though.
> > (I used the E5 CPU for the evaluation of my packet generator
> > performance with 1.7.1/2.0.0, not for the l2fwd test.)
Thanks for the update. So, just for clarification,
for l2fwd you used E3-1230 v2 (Ivy Bridge), at 1.6 GHz or 3.3 GHz?
> > Sorry for the confusion.
> > Paul
> Thanks for the update - we are investigating.
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