Kernel support was added in linux-4.18 in commit
feb5f2ec6464
("tcp: export packets delivery info")
Tested:
ss -ti
...
ESTAB 0
2270520 [2607:f8b0:8099:e16::]:47646 [2607:f8b0:8099:e18::]:38953
ts sack cubic wscale:8,8 rto:7 rtt:2.824/0.278 mss:1428
pmtu:1500 rcvmss:536 advmss:1428 cwnd:89 ssthresh:62 bytes_acked:
2097871945
segs_out:
1469144 segs_in:65221 data_segs_out:
1469142 send 360.0Mbps lastsnd:2
lastrcv:99231 lastack:2 pacing_rate 431.9Mbps delivery_rate 246.4Mbps
(*) delivered:
1469099 delivered_ce:424799
busy:99231ms unacked:44 rcv_space:14280 rcv_ssthresh:65535
notsent:
2207688 minrtt:0.228
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
unsigned int fackets;
unsigned int reordering;
unsigned int not_sent;
+ unsigned int delivered;
+ unsigned int delivered_ce;
double rcv_rtt;
double min_rtt;
int rcv_space;
if (s->delivery_rate)
out(" delivery_rate %sbps", sprint_bw(b1, s->delivery_rate));
+ if (s->delivered)
+ out(" delivered:%u", s->delivered);
+ if (s->delivered_ce)
+ out(" delivered_ce:%u", s->delivered_ce);
if (s->app_limited)
out(" app_limited");
s.busy_time = info->tcpi_busy_time;
s.rwnd_limited = info->tcpi_rwnd_limited;
s.sndbuf_limited = info->tcpi_sndbuf_limited;
+ s.delivered = info->tcpi_delivered;
+ s.delivered_ce = info->tcpi_delivered_ce;
tcp_stats_print(&s);
free(s.dctcp);
free(s.bbr_info);