Re: [PATCH net] tcp: do not set rtt_min to 1

2016-02-16 Thread David Miller
From: Eric Dumazet Date: Thu, 11 Feb 2016 08:58:18 -0800 > From: Eric Dumazet > > There are some cases where rtt_us derives from deltas of jiffies, > instead of using usec timestamps. > > Since we want to track minimal rtt, better to assume a delta of 0 jiffie > might be in fact be very close

[PATCH net] tcp: do not set rtt_min to 1

2016-02-11 Thread Eric Dumazet
From: Eric Dumazet There are some cases where rtt_us derives from deltas of jiffies, instead of using usec timestamps. Since we want to track minimal rtt, better to assume a delta of 0 jiffie might be in fact be very close to 1 jiffie. It is kind of sad jiffies_to_usecs(1) calls a function inst