On Wed, Sep 04, 2013 at 03:25:59PM -0700, Adrian Chadd wrote: > What's netstat -sp tcp show before/after the test? > ...
Typescript attached. Peace, david -- David H. Wolfskill da...@catwhisker.org Taliban: Evil cowards with guns afraid of truth from a 14-year old girl. See http://www.catwhisker.org/~david/publickey.gpg for my public key.
Script started on Wed Sep 4 15:31:50 2013
dwolf-fbsd(9.2-P)[15] sudo sysctl net.inet.tcp.tso=1
Password:
net.inet.tcp.tso: 0 -> 1
dwolf-fbsd(9.2-P)[16] netstat -sp tcp
tcp:
2555593963 packets sent
4800252 data packets (2675428399 bytes)
2547149487 data packets (7491423231574 bytes) retransmitted
12755 data packets unnecessarily retransmitted
2546909891 resends initiated by MTU discovery
3630427 ack-only packets (270271 delayed)
0 URG only packets
0 window probe packets
2596 window update packets
3453 control packets
10886789 packets received
3928645 acks (for 2807958913 bytes)
26320 duplicate acks
0 acks for unsent data
9070321 packets (9528490768 bytes) received in-sequence
574 completely duplicate packets (128517 bytes)
2 old duplicate packets
104 packets with some dup. data (4084 bytes duped)
90 out-of-order packets (99414 bytes)
833 packets (833 bytes) of data after window
833 window probes
25734 window update packets
6 packets received after close
0 discarded for bad checksums
0 discarded for bad header offset fields
0 discarded because packet too short
0 discarded due to memory problems
1677 connection requests
315 connection accepts
0 bad connection attempts
0 listen queue overflows
6 ignored RSTs in the windows
1933 connections established (including accepts)
2298 connections closed (including 90 drops)
1458 connections updated cached RTT on close
1460 connections updated cached RTT variance on close
900 connections updated cached ssthresh on close
32 embryonic connections dropped
3928644 segments updated rtt (of 2914696 attempts)
128226 retransmit timeouts
2 connections dropped by rexmit timeout
0 persist timeouts
0 connections dropped by persist timeout
0 Connections (fin_wait_2) dropped because of timeout
163 keepalive timeouts
153 keepalive probes sent
10 connections dropped by keepalive
482733 correct ACK header predictions
6883177 correct data packet header predictions
315 syncache entries added
0 retransmitted
0 dupsyn
0 dropped
315 completed
0 bucket overflow
0 cache overflow
0 reset
0 stale
0 aborted
0 badack
0 unreach
0 zone failures
315 cookies sent
0 cookies received
194 hostcache entries added
0 bucket overflow
1802 SACK recovery episodes
3576 segment rexmits in SACK recovery episodes
4987584 byte rexmits in SACK recovery episodes
51765 SACK options (SACK blocks) received
74 SACK options (SACK blocks) sent
0 SACK scoreboard overflow
0 packets with ECN CE bit set
0 packets with ECN ECT(0) bit set
0 packets with ECN ECT(1) bit set
0 successful ECN handshakes
0 times ECN reduced the congestion window
dwolf-fbsd(9.2-P)[17] cp ~/Mail/sisyphus ~/tmp
^C^C
dwolf-fbsd(9.2-P)[18] ls -lT !$/sisyphus
ls -lT ~/tmp/sisyphus
^Cdwolf-fbsd(9.2-P)[19] ls -lT ~/tmp/sisyphus
-rw------- 1 dwolf 929 1048576 Sep 4 15:32:31 2013 /homes/dwolf/tmp/sisyphus
dwolf-fbsd(9.2-P)[20] ls -lT ~/tmp/sisyphus[21Dcp ~/Mail/sisyphus
~/tmp[24Dnetstat -sp tcp[K
tcp:
2560478331 packets sent
4800896 data packets (2676331641 bytes)
2552032761 data packets (7507101784670 bytes) retransmitted
12860 data packets unnecessarily retransmitted
2551792768 resends initiated by MTU discovery
3630851 ack-only packets (270311 delayed)
0 URG only packets
0 window probe packets
2596 window update packets
3479 control packets
10888714 packets received
3929168 acks (for 2808876755 bytes)
26579 duplicate acks
0 acks for unsent data
9071336 packets (9529611537 bytes) received in-sequence
582 completely duplicate packets (129829 bytes)
2 old duplicate packets
104 packets with some dup. data (4084 bytes duped)
90 out-of-order packets (99414 bytes)
833 packets (833 bytes) of data after window
833 window probes
25915 window update packets
7 packets received after close
0 discarded for bad checksums
0 discarded for bad header offset fields
0 discarded because packet too short
0 discarded due to memory problems
1703 connection requests
315 connection accepts
0 bad connection attempts
0 listen queue overflows
6 ignored RSTs in the windows
1934 connections established (including accepts)
2325 connections closed (including 90 drops)
1459 connections updated cached RTT on close
1461 connections updated cached RTT variance on close
901 connections updated cached ssthresh on close
32 embryonic connections dropped
3929167 segments updated rtt (of 2915199 attempts)
128468 retransmit timeouts
2 connections dropped by rexmit timeout
0 persist timeouts
0 connections dropped by persist timeout
0 Connections (fin_wait_2) dropped because of timeout
163 keepalive timeouts
153 keepalive probes sent
10 connections dropped by keepalive
482835 correct ACK header predictions
6884084 correct data packet header predictions
315 syncache entries added
0 retransmitted
0 dupsyn
0 dropped
315 completed
0 bucket overflow
0 cache overflow
0 reset
0 stale
0 aborted
0 badack
0 unreach
0 zone failures
315 cookies sent
0 cookies received
195 hostcache entries added
0 bucket overflow
1843 SACK recovery episodes
3648 segment rexmits in SACK recovery episodes
5090892 byte rexmits in SACK recovery episodes
52227 SACK options (SACK blocks) received
74 SACK options (SACK blocks) sent
0 SACK scoreboard overflow
0 packets with ECN CE bit set
0 packets with ECN ECT(0) bit set
0 packets with ECN ECT(1) bit set
0 successful ECN handshakes
0 times ECN reduced the congestion window
dwolf-fbsd(9.2-P)[21] netstat -sp tcp[15Dls -lT ~/tmp/sisyphus[21Dcp
~/Mail/sisyphus ~/tmp[24Dnetstat -sp tcp[K[15Dsudo sysctl
net.inet.tcp.tso=1[K0
net.inet.tcp.tso: 1 -> 0
dwolf-fbsd(9.2-P)[22] sudo sysctl net.inet.tcp.tso=0[30Dnetstat -sp
tcp[K[15Dls -lT ~/tmp/sisyphus[21Dcp ~/Mail/sisyphus ~/tmp
dwolf-fbsd(9.2-P)[23] echo $?
0
dwolf-fbsd(9.2-P)[24] echo $?[7Dcp ~/Mail/sisyphus ~/tmp[24Dsudo sysctl
net.inet.tcp.tso=0[30Dnetstat -sp tcp[K[15Dls -lT ~/tmp/sisyphus
-rw------- 1 dwolf 929 117836339 Sep 4 15:33:34 2013
/homes/dwolf/tmp/sisyphus
dwolf-fbsd(9.2-P)[25] ls -lT ~/tmp/sisyphus[21Decho $?[K[7Dcp
~/Mail/sisyphus ~/tmp[24Dsudo sysctl net.inet.tcp.tso=0[30Dnetstat -sp tcp[K
tcp:
2561662836 packets sent
4888547 data packets (2797024810 bytes)
2553088612 data packets (7510826223526 bytes) retransmitted
12896 data packets unnecessarily retransmitted
2552848084 resends initiated by MTU discovery
3671853 ack-only packets (270403 delayed)
0 URG only packets
0 window probe packets
2596 window update packets
3480 control packets
11026149 packets received
3976120 acks (for 2929572833 bytes)
29410 duplicate acks
0 acks for unsent data
9167030 packets (9648083856 bytes) received in-sequence
597 completely duplicate packets (147049 bytes)
2 old duplicate packets
104 packets with some dup. data (4084 bytes duped)
893 out-of-order packets (1235254 bytes)
833 packets (833 bytes) of data after window
833 window probes
26317 window update packets
7 packets received after close
0 discarded for bad checksums
0 discarded for bad header offset fields
0 discarded because packet too short
0 discarded due to memory problems
1703 connection requests
315 connection accepts
0 bad connection attempts
0 listen queue overflows
6 ignored RSTs in the windows
1934 connections established (including accepts)
2325 connections closed (including 90 drops)
1460 connections updated cached RTT on close
1462 connections updated cached RTT variance on close
901 connections updated cached ssthresh on close
32 embryonic connections dropped
3976119 segments updated rtt (of 2960431 attempts)
128506 retransmit timeouts
2 connections dropped by rexmit timeout
0 persist timeouts
0 connections dropped by persist timeout
0 Connections (fin_wait_2) dropped because of timeout
163 keepalive timeouts
153 keepalive probes sent
10 connections dropped by keepalive
519937 correct ACK header predictions
6970417 correct data packet header predictions
315 syncache entries added
0 retransmitted
0 dupsyn
0 dropped
315 completed
0 bucket overflow
0 cache overflow
0 reset
0 stale
0 aborted
0 badack
0 unreach
0 zone failures
315 cookies sent
0 cookies received
195 hostcache entries added
0 bucket overflow
1945 SACK recovery episodes
4143 segment rexmits in SACK recovery episodes
5780288 byte rexmits in SACK recovery episodes
55903 SACK options (SACK blocks) received
833 SACK options (SACK blocks) sent
0 SACK scoreboard overflow
0 packets with ECN CE bit set
0 packets with ECN ECT(0) bit set
0 packets with ECN ECT(1) bit set
0 successful ECN handshakes
0 times ECN reduced the congestion window
dwolf-fbsd(9.2-P)[26] ^Dexit
Script done on Wed Sep 4 15:34:54 2013
pgpchXZOlf2On.pgp
Description: PGP signature
