Re: [PATCH v2] tcp: cwnd does not increase in TCP YeAH

2016-09-08 Thread David Miller
From: Artem Germanov Date: Wed, 7 Sep 2016 10:49:36 -0700 > Commit 76174004a0f19785a328f40388e87e982bbf69b9 > (tcp: do not slow start when cwnd equals ssthresh ) > introduced regression in TCP YeAH. Using 100ms delay 1% loss virtual > ethernet link kernel 4.2 shows bandwidth ~500KB/s for single

[PATCH v2] tcp: cwnd does not increase in TCP YeAH

2016-09-07 Thread Artem Germanov
Commit 76174004a0f19785a328f40388e87e982bbf69b9 (tcp: do not slow start when cwnd equals ssthresh ) introduced regression in TCP YeAH. Using 100ms delay 1% loss virtual ethernet link kernel 4.2 shows bandwidth ~500KB/s for single TCP connection and kernel 4.3 and above (including 4.8-rc4) shows b