On Fri, Jul 10, 2015 at 08:54:03PM +0800, Yousong Zhou wrote:
> On 8 July 2015 at 21:39, Yousong Zhou <[email protected]> wrote:
> > Hello, list
> >
> > I am doing some performance tests for the preparation of upgrading
> > Open vSwitch from 1.11.0 to 2.3.2. However, with TCP_CRR, I can only
> > achieve about 130k tps (last time I got only 40k because of a .debug
> > type kernel), not even close to the reported 680k from the blog post
> > [0]. I also found other available reports [1, 2] but those results
> > were even worse and not consistent with each other.
> >
>
> Hi, I just found the 680k tps TCP_CRR test result in the nsdi2015
> paper "The design and implementation of Open vSwitch" [1]. Hmm, the
> 120k tps in section "Cache layer performance" is similar to what I
> have got. But how were they boosted to 688k for both Linux bridge and
> Open vSwitch in section "Comparison to in-kernel switch"?
I think that the configuration we used is described in that paper under
"Cache layer performance":
In all following tests, Open vSwitch ran on a Linux server with two
8-core, 2.0 GHz Xeon processors and two Intel 10-Gb NICs. To generate
many connections, we used Netperf’s TCP CRR test [25], which repeatedly
establishes a TCP connection, sends and receives one byte of traffic,
and disconnects. The results are reported in transactions per second
(tps). Netperf only makes one connection attempt at a time, so we ran
400 Netperf sessions in parallel and reported the sum.
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