linux-kernel - Re: [LKP] [lkp] [sctp] a6c2f79287: netperf.Throughput

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Date:	Wed, 17 Aug 2016 16:48:32 +0800
From:	Aaron Lu <aaron.lu@...el.com>
To:	Xin Long <lucien.xin@...il.com>
Cc:	kernel test robot <xiaolong.ye@...el.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org,
	"David S. Miller" <davem@...emloft.net>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [LKP] [lkp] [sctp] a6c2f79287: netperf.Throughput_Mbps -37.2%
 regression

On Wed, Aug 17, 2016 at 04:02:45PM +0800, Xin Long wrote:
> >> you mean only this two line:
> >>> +       unsigned long prsctp_param;
> >>> +       int sent_count;ca;
> >>
> >> caused the performance issue ?
> >
> > Right.
> OK, can you remove this line from your patch
> +       int sent_count;
> 
> then test again, thanks.

It doesn't change on my desktop Sandybridge.

$ cat 4.7.0-rc6-01199-g116558d316e8/0/netperf.json
{
  "netperf.Throughput_Mbps": [
   748.2056249999998
  ]
}

Where commit 116558d316e8 is based on top of the last test commit
98dd2532b14e with the sent_count removed.

Thanks,
Aaron