Date: Sun, 19 Oct 2014 23:13:17 +0000 (UTC) From: "George V. Neville-Neil" <gnn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r273293 - head/cddl/lib/libdtrace Message-ID: <201410192313.s9JNDHh9026655@svn.freebsd.org>
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Author: gnn Date: Sun Oct 19 23:13:16 2014 New Revision: 273293 URL: https://svnweb.freebsd.org/changeset/base/273293 Log: 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 MFC after: 2 weeks Modified: head/cddl/lib/libdtrace/tcp.d Modified: head/cddl/lib/libdtrace/tcp.d ============================================================================== --- head/cddl/lib/libdtrace/tcp.d Sun Oct 19 23:05:18 2014 (r273292) +++ head/cddl/lib/libdtrace/tcp.d Sun Oct 19 23:13:16 2014 (r273293) @@ -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; /* XXX */ 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 "1.6.3" translator
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