/*
* sh_stat.d - Bourne shell operation stats using DTrace.
* Written for the sh DTrace provider.
*
* $Id: sh_stat.d 52 2007-09-24 04:28:01Z brendan $
*
* This traces activity from all sh processes on the system that are running
* with sh provider support.
*
* USAGE: sh_stat.d [interval [count]]
*
* FIELDS:
* EXEC/s Bourne shells executed per second, including
* those without sh provider support
* FUNC/s Functions called, per second
* BLTIN/s Builtins called, per second
* SUB-SH/s Sub-shells called, per second
* CMD/s External commands called, 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 sh
*
* Filename and function names are printed if available.
*
* 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.
*
* 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 defaultargs
inline int SCREEN = 21;
{
first = 1;
}
{
secs--;
}
/*
* Print Header
*/
{
"BLTINS/s", "SUB-SH/s", "CMD/s");
lines = 0;
first = 0;
}
/*
* Tally Data
*/
/execname == "sh"/
{
execs++;
}
{
funcs++;
}
{
builtins++;
}
/arg0 != 0/
{
subs++;
}
{
cmds++;
}
/*
* Print Output
*/
/secs == 0/
{
lines++;
counts--;
}
/*
* End
*/
/counts == 0/
{
exit(0);
}