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initial version 0.9.0 from source
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git-svn-id: https://svn.php.net/repository/pecl/xhprof/trunk@277359 c90b9560-bf6c-de11-be94-00142212c4b1
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kannan committed Mar 17, 2009
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56 changes: 56 additions & 0 deletions CHANGELOG
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Modification History:

03/02/2008 kannan, checkin xhprof_html/ and xhprof_lib/ directories.
cjiang [These contain PHP sources for the UI as well
as various supporting libraries to compute
"flat" info, diff reports, aggregate results
of multiple runs, typeahead support, etc.]
02/20/2008 kannan add basic sanity tests for the extension
02/19/2008 kannan register constants for optional profiler flags;
add xhprof.output_dir ini setting.
01/22/2008 ps port cpu affinity functions to FreeBSD
01/15/2008 kannan intercept builtins even if zend_execute_internal
were null to begin with
01/14/2008 kannan track builtins by default;
fix compiler warnings with fwd decls
12/22/2008 cjiang Further refactoring of the code for open sourcing:
(1). Remove level 1 profiling mode.
(2). Add xhprof_sample_enable, xhprof_sample_disable.
(3). Unifiy function and global variable prefix.
(4). Group relevant functions together.
(5). Migrate change history to CHANAGELOG file.
12/19/2008 kannan First step refactoring for open sourcing:
(1). Put basic direcotry structure
(2). Rename extension and function names
(3). Add LICENCE header.
06/17/2008 veeve use cycle_timer() for XHPROF_MODE_SAMPLED
03/27/2008 cjiang Add a 'hash-based' filter to reduce the number
of expensive call-stack tranversal on recursion
detection.
03/17/2008 kannan must not keep state on C stack to handle
exit (which causes _zend_bailout to longjmp
02/25/2008 kannan add xhprof_flags to toggle various metric
collections (buitins on/off, cpu metric on/off
memory stats on/off)
02/14/2008 cjiang Use cycle_timer based on 'rdtsc' instruction
on x86 machines to replace gettimeofday. rdtsc
is extremely cheap compared with gettimeofday
or getrusage.
12/06/2007 veeve bump version 1.1.2,
added hp_global_t
added mode callbacks, made modes extensible
added sampler mode
12/05/2007 veeve added doc; house cleaning
11/28/2007 kannan split include accounting into load/run_init
11/09/2007 kannan memory usage profiling
10/27/2007 kannan handle recursive calls, "include" operations
10/20/2007 kannan add hierarchical profiling; incl vs. exclusive
function times; browser based UI; diff and
aggregation support
10/10/2007 hzhao creation (flat function profiles)

Authors:
Haiping Zhao hzhao@facebook.com
Kannan Muthukkaruppan kannan@facebook.com
Venkat Venkataramani veeve@facebook.com
Changhao Jiang cjiang@facebook.com
177 changes: 177 additions & 0 deletions LICENSE
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2 changes: 2 additions & 0 deletions README
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For installation and usage notes refer to:
xhprof_html/docs/index.html
44 changes: 44 additions & 0 deletions examples/sample.php
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<?php

function bar($x) {
if ($x > 0) {
bar($x - 1);
}
}

function foo() {
for ($idx = 0; $idx < 5; $idx++) {
bar($idx);
$x = strlen("abc");
}
}

// start profiling
xhprof_enable();

// run program
foo();

// stop profiler
$xhprof_data = xhprof_disable();

// display raw xhprof data for the profiler run
print_r($xhprof_data);


$XHPROF_ROOT = realpath(dirname(__FILE__) .'/..');
include_once $XHPROF_ROOT . "/xhprof_lib/utils/xhprof_lib.php";
include_once $XHPROF_ROOT . "/xhprof_lib/utils/xhprof_runs.php";

// save raw data for this profiler run using default
// implementation of iXHProfRuns.
$xhprof_runs = new XHProfRuns_Default();

// save the run under a namespace "xhprof_foo"
$run_id = $xhprof_runs->save_run($xhprof_data, "xhprof_foo");

echo "---------------\n".
"Assuming you have set up the http based UI for \n".
"XHProf at some address, you can view run at \n".
"http://<xhprof-ui-address>/index.php?run=$run_id&source=xhprof_foo\n".
"---------------\n";
7 changes: 7 additions & 0 deletions extension/config.m4
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PHP_ARG_ENABLE(xhprof, whether to enable xhprof support,
[ --enable-xhprof Enable xhprof support])

if test "$PHP_XHPROF" != "no"; then
PHP_NEW_EXTENSION(xhprof, xhprof.c, $ext_shared)
fi
45 changes: 45 additions & 0 deletions extension/php_xhprof.h
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/*
* Copyright (c) 2009 Facebook
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/

#ifndef PHP_XHPROF_H
#define PHP_XHPROF_H

extern zend_module_entry xhprof_module_entry;
#define phpext_xhprof_ptr &xhprof_module_entry

#ifdef PHP_WIN32
#define PHP_XHPROF_API __declspec(dllexport)
#else
#define PHP_XHPROF_API
#endif

#ifdef ZTS
#include "TSRM.h"
#endif

PHP_MINIT_FUNCTION(xhprof);
PHP_MSHUTDOWN_FUNCTION(xhprof);
PHP_RINIT_FUNCTION(xhprof);
PHP_RSHUTDOWN_FUNCTION(xhprof);
PHP_MINFO_FUNCTION(xhprof);

PHP_FUNCTION(xhprof_enable);
PHP_FUNCTION(xhprof_disable);
PHP_FUNCTION(xhprof_sample_enable);
PHP_FUNCTION(xhprof_sample_disable);

#endif /* PHP_XHPROF_H */
35 changes: 35 additions & 0 deletions extension/tests/common.php
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<?php

/**
* Print xhprof raw data (essentially a callgraph) in a canonical style,
* so that even if the ordering of things within the raw_data (which is
* an associative array) changes in future implementations the output
* remains stable.
*
* Also, suppress output of variable quantities (such as time, memory)
* so that reference output of tests doesn't need any additional masking.
*
* @author Kannan
*/
function print_canonical($xhprof_data) {
ksort($xhprof_data);
foreach($xhprof_data as $func => $metrics) {
echo str_pad($func, 40) . ":";
ksort($metrics);
foreach ($metrics as $name => $value) {

// Only call counts are stable.
// Wild card everything else. We still print
// the metric name to ensure it was collected.
if ($name != "ct") {
$value = "*";
} else {
$value = str_pad($value, 8, " ", STR_PAD_LEFT);
}

echo " {$name}={$value};";
}
echo "\n";
}
}

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