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