Re: [PATCH net-next 1/2] tcp: don't extend RTO on failed loss probe attempts

2015-07-21 Thread Yuchung Cheng
On Fri, Jul 17, 2015 at 10:27 PM, Eric Dumazet eric.duma...@gmail.com wrote: On Fri, 2015-07-17 at 14:22 -0700, Yuchung Cheng wrote: If TLP was unable to send a probe, it extended the RTO to now + icsk_rto. But extending the RTO makes little sense if no TLP probe went out. With this

Re: [PATCH net-next 1/2] tcp: don't extend RTO on failed loss probe attempts

2015-07-17 Thread Eric Dumazet
On Fri, 2015-07-17 at 14:22 -0700, Yuchung Cheng wrote: If TLP was unable to send a probe, it extended the RTO to now + icsk_rto. But extending the RTO makes little sense if no TLP probe went out. With this commit, instead of extending the RTO we re-arm it relative to the transmit time of the

[PATCH net-next 1/2] tcp: don't extend RTO on failed loss probe attempts

2015-07-17 Thread Yuchung Cheng
If TLP was unable to send a probe, it extended the RTO to now + icsk_rto. But extending the RTO makes little sense if no TLP probe went out. With this commit, instead of extending the RTO we re-arm it relative to the transmit time of the write queue head. Signed-off-by: Yuchung Cheng