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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
01999999999 connections initiated 999999999 total packets sent
02999999999 connections accepted 999999999 - data
03999999999 connections established 999999999 - data (retransmit)
04999999999 connections dropped 999999999 - ack-only
05999999999 - in embryonic state 999999999 - window probes
06999999999 - on retransmit timeout 999999999 - window updates
07999999999 - by keepalive 999999999 - urgent data only
08999999999 - from listen queue 999999999 - control
09 999999999 - resends by PMTU discovery
10 TCP Timers 999999999 total packets received
11999999999 potential rtt updates 999999999 - in sequence
12999999999 - successful 999999999 - completely duplicate
13999999999 delayed acks sent 999999999 - with some duplicate data
14999999999 retransmit timeouts 999999999 - out-of-order
15999999999 persist timeouts 999999999 - duplicate acks
16999999999 keepalive probes 999999999 - acks
17999999999 - timeouts 999999999 - window probes
18 999999999 - window updates
19 999999999 - bad checksum
03999999999 connections established 999999999 - data (retransmit by dupack)
04999999999 connections dropped 999999999 - data (retransmit by sack)
05999999999 - in embryonic state 999999999 - ack-only
06999999999 - on retransmit timeout 999999999 - window probes
07999999999 - by keepalive 999999999 - window updates
08999999999 - from listen queue 999999999 - urgent data only
09 999999999 - control
10 999999999 - resends by PMTU discovery
11 TCP Timers 999999999 total packets received
12999999999 potential rtt updates 999999999 - in sequence
13999999999 - successful 999999999 - completely duplicate
14999999999 delayed acks sent 999999999 - with some duplicate data
15999999999 retransmit timeouts 999999999 - out-of-order
16999999999 persist timeouts 999999999 - duplicate acks
17999999999 keepalive probes 999999999 - acks
18999999999 - timeouts 999999999 - window probes
19 999999999 - window updates
20 999999999 - bad checksum
--0123456789012345678901234567890123456789012345678901234567890123456789012345
--0 1 2 3 4 5 6 7
*/
@ -120,23 +121,24 @@ labeltcp(void)
L(0, "TCP Connections"); R(0, "TCP Packets");
L(1, "connections initiated"); R(1, "total packets sent");
L(2, "connections accepted"); R(2, "- data");
L(3, "connections established"); R(3, "- data (retransmit)");
L(4, "connections dropped"); R(4, "- ack-only");
L(5, "- in embryonic state"); R(5, "- window probes");
L(6, "- on retransmit timeout"); R(6, "- window updates");
L(7, "- by keepalive"); R(7, "- urgent data only");
L(8, "- from listen queue"); R(8, "- control");
R(9, "- resends by PMTU discovery");
L(10, "TCP Timers"); R(10, "total packets received");
L(11, "potential rtt updates"); R(11, "- in sequence");
L(12, "- successful"); R(12, "- completely duplicate");
L(13, "delayed acks sent"); R(13, "- with some duplicate data");
L(14, "retransmit timeouts"); R(14, "- out-of-order");
L(15, "persist timeouts"); R(15, "- duplicate acks");
L(16, "keepalive probes"); R(16, "- acks");
L(17, "- timeouts"); R(17, "- window probes");
R(18, "- window updates");
R(19, "- bad checksum");
L(3, "connections established"); R(3, "- data (retransmit by dupack)");
L(4, "connections dropped"); R(4, "- data (retransmit by sack)");
L(5, "- in embryonic state"); R(5, "- ack-only");
L(6, "- on retransmit timeout"); R(6, "- window probes");
L(7, "- by keepalive"); R(7, "- window updates");
L(8, "- from listen queue"); R(8, "- urgent data only");
R(9, "- control");
R(10, "- resends by PMTU discovery");
L(11, "TCP Timers"); R(11, "total packets received");
L(12, "potential rtt updates"); R(12, "- in sequence");
L(13, "- successful"); R(13, "- completely duplicate");
L(14, "delayed acks sent"); R(14, "- with some duplicate data");
L(15, "retransmit timeouts"); R(15, "- out-of-order");
L(16, "persist timeouts"); R(16, "- duplicate acks");
L(17, "keepalive probes"); R(17, "- acks");
L(18, "- timeouts"); R(18, "- window probes");
R(19, "- window updates");
R(20, "- bad checksum");
#undef L
#undef R
}
@ -183,7 +185,7 @@ domode(struct tcpstat *ret)
DO(tcps_sndpack);
DO(tcps_sndbyte);
DO(tcps_sndrexmitpack);
DO(tcps_sndrexmitbyte);
DO(tcps_sack_rexmits);
DO(tcps_sndacks);
DO(tcps_sndprobe);
DO(tcps_sndurg);
@ -243,22 +245,23 @@ showtcp(void)
L(1, tcps_connattempt); R(1, tcps_sndtotal);
L(2, tcps_accepts); R(2, tcps_sndpack);
L(3, tcps_connects); R(3, tcps_sndrexmitpack);
L(4, tcps_drops); R(4, tcps_sndacks);
L(5, tcps_conndrops); R(5, tcps_sndprobe);
L(6, tcps_timeoutdrop); R(6, tcps_sndwinup);
L(7, tcps_keepdrops); R(7, tcps_sndurg);
L(8, tcps_listendrop); R(8, tcps_sndctrl);
R(9, tcps_mturesent);
R(10, tcps_rcvtotal);
L(11, tcps_segstimed); R(11, tcps_rcvpack);
L(12, tcps_rttupdated); R(12, tcps_rcvduppack);
L(13, tcps_delack); R(13, tcps_rcvpartduppack);
L(14, tcps_rexmttimeo); R(14, tcps_rcvoopack);
L(15, tcps_persisttimeo); R(15, tcps_rcvdupack);
L(16, tcps_keepprobe); R(16, tcps_rcvackpack);
L(17, tcps_keeptimeo); R(17, tcps_rcvwinprobe);
R(18, tcps_rcvwinupd);
R(19, tcps_rcvbadsum);
L(4, tcps_drops); R(4, tcps_sack_rexmits);
L(5, tcps_conndrops); R(5, tcps_sndacks);
L(6, tcps_timeoutdrop); R(6, tcps_sndprobe);
L(7, tcps_keepdrops); R(7, tcps_sndwinup);
L(8, tcps_listendrop); R(8, tcps_sndurg);
R(9, tcps_sndctrl);
R(10, tcps_mturesent);
R(11, tcps_rcvtotal);
L(12, tcps_segstimed); R(12, tcps_rcvpack);
L(13, tcps_rttupdated); R(13, tcps_rcvduppack);
L(14, tcps_delack); R(14, tcps_rcvpartduppack);
L(15, tcps_rexmttimeo); R(15, tcps_rcvoopack);
L(16, tcps_persisttimeo); R(16, tcps_rcvdupack);
L(17, tcps_keepprobe); R(17, tcps_rcvackpack);
L(18, tcps_keeptimeo); R(18, tcps_rcvwinprobe);
R(19, tcps_rcvwinupd);
R(20, tcps_rcvbadsum);
#undef DO
#undef L
#undef R