commit 200d95f4575934e49f872109cce18c5e72383eb8
author Eric Dumazet <edumazet@google.com> Thu May 17 14:47:27 2018 -0700
committer David S. Miller <davem@davemloft.net> Fri May 18 11:40:27 2018 -0400
tree 8df77ef31be5aa474ced03a255797e9044a3be84
parent 5d9f4262b7ea41ca9981cc790e37cca6e37c789e

tcp: add TCPAckCompressed SNMP counter

This counter tracks number of ACK packets that the host has not sent,
thanks to ACK compression.

Sample output :

$ nstat -n;sleep 1;nstat|egrep "IpInReceives|IpOutRequests|TcpInSegs|TcpOutSegs|TcpExtTCPAckCompressed"
IpInReceives                    123250             0.0
IpOutRequests                   3684               0.0
TcpInSegs                       123251             0.0
TcpOutSegs                      3684               0.0
TcpExtTCPAckCompressed          119252             0.0

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>