Re: [PATCH net-next v3] tcp: use RFC6298 compliant TCP RTO calculation

2016-06-29 Thread Daniel Metz
BD R Y -- mean TCPRecovLat 3s -7% +39% +38% mean TCPRecovLat252s +1% -11% -11% This is indeed very interesting and somewhat unexpected. Do you

Re: [PATCH net-next v3] tcp: use RFC6298 compliant TCP RTO calculation

2016-06-29 Thread Yuchung Cheng
On Tue, Jun 21, 2016 at 10:53 PM, Yuchung Cheng wrote: > > On Fri, Jun 17, 2016 at 11:56 AM, Yuchung Cheng wrote: > > > > On Fri, Jun 17, 2016 at 11:32 AM, David Miller wrote: > > > > > > From: Daniel Metz > > > Date: Wed, 15 Jun 2016 20:00:03 +0200 > > > > > > > This patch adjusts Linux RTO ca

Re: [PATCH net-next v3] tcp: use RFC6298 compliant TCP RTO calculation

2016-06-22 Thread Yuchung Cheng
On Wed, Jun 22, 2016 at 4:21 AM, Hagen Paul Pfeifer wrote: > > > On June 22, 2016 at 7:53 AM Yuchung Cheng wrote: > > > > Thanks for the patience. I've collected data from some Google Web > > servers. They serve both a mix of US and SouthAm users using > > HTTP1 and HTTP2. The traffic is Web brow

Re: [PATCH net-next v3] tcp: use RFC6298 compliant TCP RTO calculation

2016-06-22 Thread Hagen Paul Pfeifer
> On June 22, 2016 at 7:53 AM Yuchung Cheng wrote: > > Thanks for the patience. I've collected data from some Google Web > servers. They serve both a mix of US and SouthAm users using > HTTP1 and HTTP2. The traffic is Web browsing (e.g., search, maps, > gmails, etc but not Youtube videos). The me

Re: [PATCH net-next v3] tcp: use RFC6298 compliant TCP RTO calculation

2016-06-21 Thread Yuchung Cheng
On Fri, Jun 17, 2016 at 11:56 AM, Yuchung Cheng wrote: > > On Fri, Jun 17, 2016 at 11:32 AM, David Miller wrote: > > > > From: Daniel Metz > > Date: Wed, 15 Jun 2016 20:00:03 +0200 > > > > > This patch adjusts Linux RTO calculation to be RFC6298 Standard > > > compliant. MinRTO is no longer adde

Re: [PATCH net-next v3] tcp: use RFC6298 compliant TCP RTO calculation

2016-06-17 Thread Yuchung Cheng
On Fri, Jun 17, 2016 at 11:32 AM, David Miller wrote: > > From: Daniel Metz > Date: Wed, 15 Jun 2016 20:00:03 +0200 > > > This patch adjusts Linux RTO calculation to be RFC6298 Standard > > compliant. MinRTO is no longer added to the computed RTO, RTO damping > > and overestimation are decreased.

Re: [PATCH net-next v3] tcp: use RFC6298 compliant TCP RTO calculation

2016-06-17 Thread David Miller
From: Daniel Metz Date: Wed, 15 Jun 2016 20:00:03 +0200 > This patch adjusts Linux RTO calculation to be RFC6298 Standard > compliant. MinRTO is no longer added to the computed RTO, RTO damping > and overestimation are decreased. ... Yuchung, I assume I am waiting for you to do the testing you