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92 lines
2.3 KiB
D
Executable File
92 lines
2.3 KiB
D
Executable File
#!/usr/sbin/dtrace -Zs
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/*
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* php_flowtime.d - snoop PHP functions with flow and delta times.
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* Written for the PHP DTrace provider.
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*
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* $Id: php_flowtime.d 53 2007-09-24 04:58:38Z brendan $
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*
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* This traces shell activity from PHP programs on the system that are
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* running with PHP provider support.
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*
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* USAGE: php_flowtime.d # hit Ctrl-C to end
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*
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* This watches PHP function entries and returns, and indents child
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* function calls.
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*
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* FIELDS:
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* C CPU-id
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* TIME(us) Time since boot, us
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* FILE Filename that this function belongs to
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* DELTA(us) Elapsed time from previous line to this line
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* FUNC PHP function name
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*
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* LEGEND:
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* -> function entry
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* <- function return
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*
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* Filename and function names are printed if available.
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*
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* WARNING: Watch the first column carefully, it prints the CPU-id. If it
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* changes, then it is very likely that the output has been shuffled.
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*
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* COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
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*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at Docs/cddl1.txt
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* CDDL HEADER END
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*
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* 09-Sep-2007 Brendan Gregg Created this.
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*/
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#pragma D option quiet
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#pragma D option switchrate=10
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self int depth;
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self int last;
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dtrace:::BEGIN
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{
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printf("%3s %-16s %-16s %9s -- %s\n", "C", "TIME(us)", "FILE",
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"DELTA(us)", "FUNC");
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}
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php*:::function-entry,
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php*:::function-return
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/self->last == 0/
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{
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self->last = timestamp;
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}
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php*:::function-entry
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/arg0/
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{
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this->delta = (timestamp - self->last) / 1000;
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printf("%3d %-16d %-16s %9d %*s-> %s\n", cpu, timestamp / 1000,
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basename(copyinstr(arg1)), this->delta, self->depth * 2, "",
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copyinstr(arg0));
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self->depth++;
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self->last = timestamp;
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}
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php*:::function-return
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/arg0/
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{
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this->delta = (timestamp - self->last) / 1000;
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self->depth -= self->depth > 0 ? 1 : 0;
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printf("%3d %-16d %-16s %9d %*s<- %s\n", cpu, timestamp / 1000,
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basename(copyinstr(arg1)), this->delta, self->depth * 2, "",
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copyinstr(arg0));
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self->last = timestamp;
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}
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