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

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:

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 > >

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

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

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

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

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

2016-06-15 Thread Daniel Metz
From: Daniel Metz 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. In RFC 6298 Standard TCP Retransmission Timeout (RTO) calculation the