HardenedBSD/cddl/contrib/dtracetoolkit/Php/php_flowtime.d
2012-05-12 21:25:48 +00:00

92 lines
2.3 KiB
D
Executable File

#!/usr/sbin/dtrace -Zs
/*
* php_flowtime.d - snoop PHP functions with flow and delta times.
* Written for the PHP DTrace provider.
*
* $Id: php_flowtime.d 53 2007-09-24 04:58:38Z brendan $
*
* This traces shell activity from PHP programs on the system that are
* running with PHP provider support.
*
* USAGE: php_flowtime.d # hit Ctrl-C to end
*
* This watches PHP function entries and returns, and indents child
* function calls.
*
* FIELDS:
* C CPU-id
* TIME(us) Time since boot, us
* FILE Filename that this function belongs to
* DELTA(us) Elapsed time from previous line to this line
* FUNC PHP function name
*
* LEGEND:
* -> function entry
* <- function return
*
* Filename and function names are printed if available.
*
* WARNING: Watch the first column carefully, it prints the CPU-id. If it
* changes, then it is very likely that the output has been shuffled.
*
* 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 switchrate=10
self int depth;
self int last;
dtrace:::BEGIN
{
printf("%3s %-16s %-16s %9s -- %s\n", "C", "TIME(us)", "FILE",
"DELTA(us)", "FUNC");
}
php*:::function-entry,
php*:::function-return
/self->last == 0/
{
self->last = timestamp;
}
php*:::function-entry
/arg0/
{
this->delta = (timestamp - self->last) / 1000;
printf("%3d %-16d %-16s %9d %*s-> %s\n", cpu, timestamp / 1000,
basename(copyinstr(arg1)), this->delta, self->depth * 2, "",
copyinstr(arg0));
self->depth++;
self->last = timestamp;
}
php*:::function-return
/arg0/
{
this->delta = (timestamp - self->last) / 1000;
self->depth -= self->depth > 0 ? 1 : 0;
printf("%3d %-16d %-16s %9d %*s<- %s\n", cpu, timestamp / 1000,
basename(copyinstr(arg1)), this->delta, self->depth * 2, "",
copyinstr(arg0));
self->last = timestamp;
}