3 * tcl_who.d - trace Tcl calls by process using DTrace.
4 * Written for the Tcl DTrace provider.
6 * $Id: tcl_who.d 63 2007-10-04 04:34:38Z brendan $
8 * This traces activity from all Tcl processes on the system with DTrace
9 * provider support (tcl8.4.16).
11 * USAGE: tcl_who.d # hit Ctrl-C to end
14 * PID Process ID of Tcl
15 * UID User ID of the owner
16 * CALLS Number of calls made (proc + cmd)
17 * ARGS Process name and arguments
19 * Calls is a measure of activity, and is a count of the procedures and
20 * commands that Tcl called.
22 * The argument list is truncated at 55 characters (up to 80 is easily
23 * available). To easily read the full argument list, use other system tools;
24 * on Solaris use "pargs PID".
26 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
30 * The contents of this file are subject to the terms of the
31 * Common Development and Distribution License, Version 1.0 only
32 * (the "License"). You may not use this file except in compliance
35 * You can obtain a copy of the license at Docs/cddl1.txt
36 * or http://www.opensolaris.org/os/licensing.
37 * See the License for the specific language governing permissions
38 * and limitations under the License.
42 * 09-Sep-2007 Brendan Gregg Created this.
45 #pragma D option quiet
49 printf("Tracing... Hit Ctrl-C to end.\n");
55 @calls[pid, uid, curpsinfo->pr_psargs] = count();
60 printf(" %6s %6s %6s %-55s\n", "PID", "UID", "CALLS", "ARGS");
61 printa(" %6d %6d %@6d %-55.55s\n", @calls);