linux-kernel - Re: [lkp] [net] 192132b9a0: -17.5% netperf.Throughput

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Date:	Mon, 21 Sep 2015 09:33:31 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	David Ahern <dsa@...ulusnetworks.com>
Cc:	lkp@...org, LKML <linux-kernel@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [lkp] [net] 192132b9a0: -17.5% netperf.Throughput_tps

On Sun, 2015-09-20 at 19:19 -0600, David Ahern wrote:
> On 9/20/15 6:30 AM, kernel test robot wrote:
> > FYI, we noticed the below changes on
> > 
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
> > master
> > commit 192132b9a034d87566294be0fba5f8f75c2cf16b ("net: Add support
> > for VRFs to inetpeer cache")
> > 
> > 
> > ===================================================================
> > ======================
> > tbox_group/testcase/rootfs/kconfig/compiler/cpufreq_governor/runtim
> > e/nr_threads/cluster/test:
> >    lkp-sbx04/netperf/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc
> > -4.9/performance/300s/200%/cs-localhost/TCP_CRR
> > 
> > commit:
> >    5345c2e12d41f815c1009c9dee72f3d5fcfd4282
> >    192132b9a034d87566294be0fba5f8f75c2cf16b
> > 
> 
> Clarification: The reproduce file shows 128 instances of 'netperf -t 
> TCP_CRR -c -C -l 300 -H 127.0.0.1' without an '&' on the end. Does
> that 
> mean these 128 commands are run serially?

Sorry.  It's a script bug, there should be a "&" on the end.  Will fix
the script.

> 
> Also, this is the end patch of a series that first refactors and then
> adds a capability. The more relevant comparison is 8f58336d3f78 to 
> 192132b9a034 (8f58336d3f78 is the commit before the series). Is it 
> possible to get this test run on your system comparing those 2
> commits?

Sure.  It is attached with the mail.

Best Regards,
Huang, Ying

View attachment "stdout.txt" of type "text/plain" (83167 bytes)