Two new tcp_info fields: tcpi_segs_in and tcpi_segs_out.
(2efd055c53c06b7e89c167c98069bab9afce7e59)
~: ss -ti src :22
cubic wscale:7,6 rto:201 rtt:0.244/0.012 ato:40 mss:1418 cwnd:21
bytes_acked:80605 bytes_received:20491 segs_out:414 segs_in:600 send 976.3Mbps
lastsnd:23 lastrcv:23 lastack:22 pacing_rate 1952.7Mbps rcv_rtt:98
rcv_space:28960
Signed-off-by: Craig Gallek <[email protected]>
---
include/linux/tcp.h | 4 +++-
misc/ss.c | 8 ++++++++
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 8b17cff..1e9b4a6 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -192,8 +192,10 @@ struct tcp_info {
__u64 tcpi_pacing_rate;
__u64 tcpi_max_pacing_rate;
- __u64 tcpi_bytes_acked; /* RFC4898 tcpEStatsAppHCThruOctetsAcked */
+ __u64 tcpi_bytes_acked; /* RFC4898 tcpEStatsAppHCThruOctetsAcked */
__u64 tcpi_bytes_received; /* RFC4898
tcpEStatsAppHCThruOctetsReceived */
+ __u32 tcpi_segs_out; /* RFC4898 tcpEStatsPerfSegsOut */
+ __u32 tcpi_segs_in; /* RFC4898 tcpEStatsPerfSegsIn */
};
/* for TCP_MD5SIG socket option */
diff --git a/misc/ss.c b/misc/ss.c
index dba0901..3e01f88 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -769,6 +769,8 @@ struct tcpstat
double pacing_rate_max;
unsigned long long bytes_acked;
unsigned long long bytes_received;
+ unsigned int segs_out;
+ unsigned int segs_in;
unsigned int unacked;
unsigned int retrans;
unsigned int retrans_total;
@@ -1695,6 +1697,10 @@ static void tcp_stats_print(struct tcpstat *s)
printf(" bytes_acked:%llu", s->bytes_acked);
if (s->bytes_received)
printf(" bytes_received:%llu", s->bytes_received);
+ if (s->segs_out)
+ printf(" segs_out:%u", s->segs_out);
+ if (s->segs_in)
+ printf(" segs_in:%u", s->segs_in);
if (s->dctcp && s->dctcp->enabled) {
struct dctcpstat *dctcp = s->dctcp;
@@ -1990,6 +1996,8 @@ static void tcp_show_info(const struct nlmsghdr *nlh,
struct inet_diag_msg *r,
}
s.bytes_acked = info->tcpi_bytes_acked;
s.bytes_received = info->tcpi_bytes_received;
+ s.segs_out = info->tcpi_segs_out;
+ s.segs_in = info->tcpi_segs_in;
tcp_stats_print(&s);
if (s.dctcp)
free(s.dctcp);
--
2.2.0.rc0.207.ga3a616c
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