FreeBSD Bugzilla – Attachment 221992 Details for
Bug 252913
[tcp] Using RACK leaks mbufs
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netstat-sptcp
netstat-sptcp (text/plain), 3.55 KB, created by
iron.udjin
on 2021-01-28 16:14:41 UTC
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Description:
netstat-sptcp
Filename:
MIME Type:
Creator:
iron.udjin
Created:
2021-01-28 16:14:41 UTC
Size:
3.55 KB
patch
obsolete
>tcp: > 852494605 packets sent > 164300490 data packets (939735789229 bytes) > 617624670 data packets (871329365531 bytes) retransmitted > 5062 data packets unnecessarily retransmitted > 236 resends initiated by MTU discovery > 49323106 ack-only packets (7606615 delayed) > 0 URG only packets > 4155 window probe packets > 2492389 window update packets > 17741936 control packets > 693910830 packets received > 502679508 acks (for 938878179425 bytes) > 7349 duplicate acks > 0 acks for unsent data > 193804153 packets (270185378473 bytes) received in-sequence > 3097311 completely duplicate packets (169167577 bytes) > 573590 old duplicate packets > 6476 packets with some dup. data (1740674 bytes duped) > 1467191 out-of-order packets (767227678 bytes) > 196855 packets (1218 bytes) of data after window > 0 window probes > 3471514 window update packets > 152640 packets received after close > 0 discarded for bad checksums > 0 discarded for bad header offset fields > 0 discarded because packet too short > 1883 discarded due to full reassembly queue > 2872069 connection requests > 6591096 connection accepts > 6857 bad connection attempts > 0 listen queue overflows > 1429001 ignored RSTs in the windows > 9460989 connections established (including accepts) > 7767679 times used RTT from hostcache > 7767679 times used RTT variance from hostcache > 860540 times used slow-start threshold from hostcache > 7263097 connections closed (including 1015753 drops) > 5302724 connections updated cached RTT on close > 5389864 connections updated cached RTT variance on close > 581924 connections updated cached ssthresh on close > 672 embryonic connections dropped > 196129135 segments updated rtt (of 123279 attempts) > 1416369 retransmit timeouts > 94190 connections dropped by rexmit timeout > 8804 persist timeouts > 508 connections dropped by persist timeout > 27269 Connections (fin_wait_2) dropped because of timeout > 6933 keepalive timeouts > 6426 keepalive probes sent > 152 connections dropped by keepalive > 148637682 correct ACK header predictions > 81202052 correct data packet header predictions > 6640515 syncache entries added > 138534 retransmitted > 97792 dupsyn > 0 dropped > 6591096 completed > 0 bucket overflow > 0 cache overflow > 38440 reset > 9789 stale > 0 aborted > 0 badack > 577 unreach > 0 zone failures > 0 cookies sent > 0 cookies received > 841941 hostcache entries added > 0 bucket overflow > 0 SACK recovery episodes > 616645567 segment rexmits in SACK recovery episodes > 871481089642 byte rexmits in SACK recovery episodes > 371626637 SACK options (SACK blocks) received > 1843517 SACK options (SACK blocks) sent > 0 SACK scoreboard overflow > 216 packets with ECN CE bit set > 183509215 packets with ECN ECT(0) bit set > 54 packets with ECN ECT(1) bit set > 6147038 successful ECN handshakes > 30 times ECN reduced the congestion window > 0 packets with matching signature received > 0 packets with bad signature received > 0 times failed to make signature due to no SA > 0 times unexpected signature received > 0 times no signature provided by segment > 0 Path MTU discovery black hole detection activations > 0 Path MTU discovery black hole detection min MSS activations > 0 Path MTU discovery black hole detection failures >TCP connection count by state: > 0 connections in CLOSED state > 122 connections in LISTEN state > 0 connections in SYN_SENT state > 23 connections in SYN_RCVD state > 5133 connections in ESTABLISHED state > 0 connections in CLOSE_WAIT state > 159 connections in FIN_WAIT_1 state > 13 connections in CLOSING state > 89 connections in LAST_ACK state > 24 connections in FIN_WAIT_2 state > 710 connections in TIME_WAIT state
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