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Add a new counter for retransmitted packets due to SACK.

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PR:		bin/112881
Submitted by:	Phil Rosenthal <pr  isprime com>
This commit is contained in:
John Baldwin 2007-06-15 17:55:44 +00:00
parent 5a0d489f5a
commit 02a50a14b3
1 changed files with 54 additions and 51 deletions
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105
usr.bin/systat/tcp.c
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@ -73,23 +73,24 @@ static struct tcpstat curstat, initstat, oldstat;
00 TCP Connections TCP Packets 00 TCP Connections TCP Packets
01999999999 connections initiated 999999999 total packets sent 01999999999 connections initiated 999999999 total packets sent
02999999999 connections accepted 999999999 - data 02999999999 connections accepted 999999999 - data
03999999999 connections established 999999999 - data (retransmit) 03999999999 connections established 999999999 - data (retransmit by dupack)
04999999999 connections dropped 999999999 - ack-only 04999999999 connections dropped 999999999 - data (retransmit by sack)
05999999999 - in embryonic state 999999999 - window probes 05999999999 - in embryonic state 999999999 - ack-only
06999999999 - on retransmit timeout 999999999 - window updates 06999999999 - on retransmit timeout 999999999 - window probes
07999999999 - by keepalive 999999999 - urgent data only 07999999999 - by keepalive 999999999 - window updates
08999999999 - from listen queue 999999999 - control 08999999999 - from listen queue 999999999 - urgent data only
09 999999999 - resends by PMTU discovery 09 999999999 - control
10 TCP Timers 999999999 total packets received 10 999999999 - resends by PMTU discovery
11999999999 potential rtt updates 999999999 - in sequence 11 TCP Timers 999999999 total packets received
12999999999 - successful 999999999 - completely duplicate 12999999999 potential rtt updates 999999999 - in sequence
13999999999 delayed acks sent 999999999 - with some duplicate data 13999999999 - successful 999999999 - completely duplicate
14999999999 retransmit timeouts 999999999 - out-of-order 14999999999 delayed acks sent 999999999 - with some duplicate data
15999999999 persist timeouts 999999999 - duplicate acks 15999999999 retransmit timeouts 999999999 - out-of-order
16999999999 keepalive probes 999999999 - acks 16999999999 persist timeouts 999999999 - duplicate acks
17999999999 - timeouts 999999999 - window probes 17999999999 keepalive probes 999999999 - acks
18 999999999 - window updates 18999999999 - timeouts 999999999 - window probes
19 999999999 - bad checksum 19 999999999 - window updates
20 999999999 - bad checksum
--0123456789012345678901234567890123456789012345678901234567890123456789012345 --0123456789012345678901234567890123456789012345678901234567890123456789012345
--0 1 2 3 4 5 6 7 --0 1 2 3 4 5 6 7
*/ */
@ -120,23 +121,24 @@ labeltcp(void)
L(0, "TCP Connections"); R(0, "TCP Packets"); L(0, "TCP Connections"); R(0, "TCP Packets");
L(1, "connections initiated"); R(1, "total packets sent"); L(1, "connections initiated"); R(1, "total packets sent");
L(2, "connections accepted"); R(2, "- data"); L(2, "connections accepted"); R(2, "- data");
L(3, "connections established"); R(3, "- data (retransmit)"); L(3, "connections established"); R(3, "- data (retransmit by dupack)");
L(4, "connections dropped"); R(4, "- ack-only"); L(4, "connections dropped"); R(4, "- data (retransmit by sack)");
L(5, "- in embryonic state"); R(5, "- window probes"); L(5, "- in embryonic state"); R(5, "- ack-only");
L(6, "- on retransmit timeout"); R(6, "- window updates"); L(6, "- on retransmit timeout"); R(6, "- window probes");
L(7, "- by keepalive"); R(7, "- urgent data only"); L(7, "- by keepalive"); R(7, "- window updates");
L(8, "- from listen queue"); R(8, "- control"); L(8, "- from listen queue"); R(8, "- urgent data only");
R(9, "- resends by PMTU discovery"); R(9, "- control");
L(10, "TCP Timers"); R(10, "total packets received"); R(10, "- resends by PMTU discovery");
L(11, "potential rtt updates"); R(11, "- in sequence"); L(11, "TCP Timers"); R(11, "total packets received");
L(12, "- successful"); R(12, "- completely duplicate"); L(12, "potential rtt updates"); R(12, "- in sequence");
L(13, "delayed acks sent"); R(13, "- with some duplicate data"); L(13, "- successful"); R(13, "- completely duplicate");
L(14, "retransmit timeouts"); R(14, "- out-of-order"); L(14, "delayed acks sent"); R(14, "- with some duplicate data");
L(15, "persist timeouts"); R(15, "- duplicate acks"); L(15, "retransmit timeouts"); R(15, "- out-of-order");
L(16, "keepalive probes"); R(16, "- acks"); L(16, "persist timeouts"); R(16, "- duplicate acks");
L(17, "- timeouts"); R(17, "- window probes"); L(17, "keepalive probes"); R(17, "- acks");
R(18, "- window updates"); L(18, "- timeouts"); R(18, "- window probes");
R(19, "- bad checksum"); R(19, "- window updates");
R(20, "- bad checksum");
#undef L #undef L
#undef R #undef R
} }
@ -183,7 +185,7 @@ domode(struct tcpstat *ret)
DO(tcps_sndpack); DO(tcps_sndpack);
DO(tcps_sndbyte); DO(tcps_sndbyte);
DO(tcps_sndrexmitpack); DO(tcps_sndrexmitpack);
DO(tcps_sndrexmitbyte); DO(tcps_sack_rexmits);
DO(tcps_sndacks); DO(tcps_sndacks);
DO(tcps_sndprobe); DO(tcps_sndprobe);
DO(tcps_sndurg); DO(tcps_sndurg);
@ -243,22 +245,23 @@ showtcp(void)
L(1, tcps_connattempt); R(1, tcps_sndtotal); L(1, tcps_connattempt); R(1, tcps_sndtotal);
L(2, tcps_accepts); R(2, tcps_sndpack); L(2, tcps_accepts); R(2, tcps_sndpack);
L(3, tcps_connects); R(3, tcps_sndrexmitpack); L(3, tcps_connects); R(3, tcps_sndrexmitpack);
L(4, tcps_drops); R(4, tcps_sndacks); L(4, tcps_drops); R(4, tcps_sack_rexmits);
L(5, tcps_conndrops); R(5, tcps_sndprobe); L(5, tcps_conndrops); R(5, tcps_sndacks);
L(6, tcps_timeoutdrop); R(6, tcps_sndwinup); L(6, tcps_timeoutdrop); R(6, tcps_sndprobe);
L(7, tcps_keepdrops); R(7, tcps_sndurg); L(7, tcps_keepdrops); R(7, tcps_sndwinup);
L(8, tcps_listendrop); R(8, tcps_sndctrl); L(8, tcps_listendrop); R(8, tcps_sndurg);
R(9, tcps_mturesent); R(9, tcps_sndctrl);
R(10, tcps_rcvtotal); R(10, tcps_mturesent);
L(11, tcps_segstimed); R(11, tcps_rcvpack); R(11, tcps_rcvtotal);
L(12, tcps_rttupdated); R(12, tcps_rcvduppack); L(12, tcps_segstimed); R(12, tcps_rcvpack);
L(13, tcps_delack); R(13, tcps_rcvpartduppack); L(13, tcps_rttupdated); R(13, tcps_rcvduppack);
L(14, tcps_rexmttimeo); R(14, tcps_rcvoopack); L(14, tcps_delack); R(14, tcps_rcvpartduppack);
L(15, tcps_persisttimeo); R(15, tcps_rcvdupack); L(15, tcps_rexmttimeo); R(15, tcps_rcvoopack);
L(16, tcps_keepprobe); R(16, tcps_rcvackpack); L(16, tcps_persisttimeo); R(16, tcps_rcvdupack);
L(17, tcps_keeptimeo); R(17, tcps_rcvwinprobe); L(17, tcps_keepprobe); R(17, tcps_rcvackpack);
R(18, tcps_rcvwinupd); L(18, tcps_keeptimeo); R(18, tcps_rcvwinprobe);
R(19, tcps_rcvbadsum); R(19, tcps_rcvwinupd);
R(20, tcps_rcvbadsum);
#undef DO #undef DO
#undef L #undef L
#undef R #undef R