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| author | gnn <gnn@FreeBSD.org> | 2015-05-09 22:59:11 +0000 |
|---|---|---|
| committer | gnn <gnn@FreeBSD.org> | 2015-05-09 22:59:11 +0000 |
| commit | f5cf32d13f0fc9d417fcd80dfa7081c492d273e6 (patch) | |
| tree | 1f2d742e1cec07571fc826164351c1b80073213d /cddl | |
| parent | 431f70d6956d85283ece69255f2bfc5d274830ce (diff) | |
| download | FreeBSD-src-f5cf32d13f0fc9d417fcd80dfa7081c492d273e6.zip FreeBSD-src-f5cf32d13f0fc9d417fcd80dfa7081c492d273e6.tar.gz | |
MFC: 273293
Update the TCP structure used by DTrace to show the smoothed RTT.
This will allow similar functionality to SIFTR to be built with DTrace.
Submitted by: Grenville Armitage
Diffstat (limited to 'cddl')
| -rw-r--r-- | cddl/lib/libdtrace/tcp.d | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/cddl/lib/libdtrace/tcp.d b/cddl/lib/libdtrace/tcp.d index da67e9c..9cf5cb7 100644 --- a/cddl/lib/libdtrace/tcp.d +++ b/cddl/lib/libdtrace/tcp.d @@ -116,6 +116,7 @@ typedef struct tcpsinfo { uint32_t tcps_rto; /* round-trip timeout, msec */ uint32_t tcps_mss; /* max segment size */ int tcps_retransmit; /* retransmit send event, boolean */ + int tcps_srtt; /* smoothed RTT in units of (TCP_RTT_SCALE*hz) */ } tcpsinfo_t; /* @@ -200,6 +201,7 @@ translator tcpsinfo_t < struct tcpcb *p > { tcps_rto = p == NULL ? -1 : (p->t_rxtcur * 1000) / `hz; tcps_mss = p == NULL ? -1 : p->t_maxseg; tcps_retransmit = p == NULL ? -1 : p->t_rxtshift > 0 ? 1 : 0; + tcps_srtt = p == NULL ? -1 : p->t_srtt; /* smoothed RTT in units of (TCP_RTT_SCALE*hz) */ }; #pragma D binding "1.0" translator |
