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#!/usr/sbin/dtrace -Zs
/*
* tcl_stat.d - Tcl operation stats using DTrace.
* Written for the Tcl DTrace provider.
*
* $Id: tcl_stat.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_stat.d [interval [count]]
*
* FIELDS:
* EXEC/s Tcl programs executed per second, including
* those without Tcl provider support
* PROC/s Procedures called, per second
* CMD/s Commands created, per second
* OBJNEW/s Objects created, per second
* OBJFRE/s Objects freed, per second
* OP/s Bytecode operations, per second
*
* The numbers are counts for the interval specified. The default interval
* is 1 second.
*
* If you see a count in "EXECS" but not in the other columns, then you
* may have older Tcl software that does not have the integrated DTrace
* provider (or newer software where the provider has changed).
*
* 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
#pragma D option defaultargs
inline int SCREEN = 21;
dtrace:::BEGIN
{
execs = procs = cmds = objnew = objfree = ops = 0;
lines = SCREEN + 1;
interval = $1 ? $1 : 1;
counts = $2 ? $2 : -1;
secs = interval;
first = 1;
}
profile:::tick-1sec
{
secs--;
}
/*
* Print Header
*/
dtrace:::BEGIN,
profile:::tick-1sec
/first || (secs == 0 && lines > SCREEN)/
{
printf("%-20s %6s %8s %8s %8s %8s %8s\n", "TIME", "EXEC/s",
"PROC/s", "CMD/s", "OBJNEW/s", "OBJFRE/s", "OP/s");
lines = 0;
first = 0;
}
/*
* Tally Data
*/
proc:::exec-success
/execname == "tcl" || execname == "tclsh"/
{
execs++;
}
tcl*:::proc-entry
{
procs++;
}
tcl*:::cmd-entry
{
cmds++;
}
tcl*:::obj-create
{
objnew++;
}
tcl*:::obj-free
{
objfree++;
}
tcl*:::inst-start
{
ops++;
}
/*
* Print Output
*/
profile:::tick-1sec
/secs == 0/
{
printf("%-20Y %6d %8d %8d %8d %8d %8d\n", walltimestamp,
execs / interval, procs / interval, cmds / interval,
objnew / interval, objfree / interval, ops / interval);
execs = procs = cmds = objnew = objfree = ops = 0;
secs = interval;
lines++;
counts--;
}
/*
* End
*/
profile:::tick-1sec
/counts == 0/
{
exit(0);
}
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