dmitry Tue, 20 Apr 2010 10:44:19 +0000
Revision: http://svn.php.net/viewvc?view=revision&revision=298201
Log:
Added a micro benchmark which measures the performance of some primitive
operations. It's usefult to detect performance evaluation caused by new patches.
Changed paths:
A php/php-src/trunk/Zend/micro_bench.php
Added: php/php-src/trunk/Zend/micro_bench.php
===================================================================
--- php/php-src/trunk/Zend/micro_bench.php (rev 0)
+++ php/php-src/trunk/Zend/micro_bench.php 2010-04-20 10:44:19 UTC (rev
298201)
@@ -0,0 +1,275 @@
+<?php
+
+function hallo() {
+}
+
+function simpleucall($n) {
+ for ($i = 0; $i < $n; $i++)
+ hallo();
+}
+
+function simpleudcall($n) {
+ for ($i = 0; $i < $n; $i++)
+ hallo2();
+}
+
+function hallo2() {
+}
+
+function simpleicall($n) {
+ for ($i = 0; $i < $n; $i++)
+ func_num_args();
+}
+
+class Foo {
+ static $a = 0;
+ public $b = 0;
+ const TEST = 0;
+
+ static function read_static($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = self::$a;
+ }
+ }
+
+ static function write_static($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ self::$a = 0;
+ }
+ }
+
+ static function isset_static($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = isset(self::$a);
+ }
+ }
+
+ static function empty_static($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = empty(self::$a);
+ }
+ }
+
+ static function f() {
+ }
+
+ static function call_static($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ self::f();
+ }
+ }
+
+ function read_prop($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = $this->b;
+ }
+ }
+
+ function write_prop($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $this->b = 0;
+ }
+ }
+
+ function assign_add_prop($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $this->b += 2;
+ }
+ }
+
+ function pre_inc_prop($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ ++$this->b;
+ }
+ }
+
+ function pre_dec_prop($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ --$this->b;
+ }
+ }
+
+ function post_inc_prop($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $this->b++;
+ }
+ }
+
+ function post_dec_prop($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $this->b--;
+ }
+ }
+
+ function isset_prop($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = isset($this->b);
+ }
+ }
+
+ function empty_prop($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = empty($this->b);
+ }
+ }
+
+ function g() {
+ }
+
+ function call($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $this->g();
+ }
+ }
+
+ function read_const($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = $this::TEST;
+ }
+ }
+
+}
+
+function read_static($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = Foo::$a;
+ }
+}
+
+function write_static($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ Foo::$a = 0;
+ }
+}
+
+function isset_static($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = isset(Foo::$a);
+ }
+}
+
+function empty_static($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = empty(Foo::$a);
+ }
+}
+
+function call_static($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ Foo::f();
+ }
+}
+
+function create_object($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ $x = new Foo();
+ }
+}
+
+/*****/
+
+function empty_loop($n) {
+ for ($i = 0; $i < $n; ++$i) {
+ }
+}
+
+function getmicrotime()
+{
+ $t = gettimeofday();
+ return ($t['sec'] + $t['usec'] / 1000000);
+}
+
+function start_test()
+{
+ ob_start();
+ return getmicrotime();
+}
+
+function end_test($start, $name, $overhead = null)
+{
+ global $total;
+ global $last_time;
+ $end = getmicrotime();
+ ob_end_clean();
+ $last_time = $end-$start;
+ $total += $last_time;
+ $num = number_format($last_time,3);
+ $pad = str_repeat(" ", 24-strlen($name)-strlen($num));
+ if (is_null($overhead)) {
+ echo $name.$pad.$num."\n";
+ } else {
+ $num2 = number_format($last_time - $overhead,3);
+ echo $name.$pad.$num." ".$num2."\n";
+ }
+ ob_start();
+ return getmicrotime();
+}
+
+function total()
+{
+ global $total;
+ $pad = str_repeat("-", 24);
+ echo $pad."\n";
+ $num = number_format($total,3);
+ $pad = str_repeat(" ", 24-strlen("Total")-strlen($num));
+ echo "Total".$pad.$num."\n";
+}
+
+const N = 5000000;
+
+$t0 = $t = start_test();
+empty_loop(N);
+$t = end_test($t, 'empty_loop');
+$overhead = $last_time;
+simpleucall(N);
+$t = end_test($t, 'func()', $overhead);
+simpleudcall(N);
+$t = end_test($t, 'undef_func()', $overhead);
+simpleicall(N);
+$t = end_test($t, 'int_func()', $overhead);
+Foo::read_static(N);
+$t = end_test($t, '$x = self::$x', $overhead);
+Foo::write_static(N);
+$t = end_test($t, 'self::$x = 0', $overhead);
+Foo::isset_static(N);
+$t = end_test($t, 'isset(self::$x)', $overhead);
+Foo::empty_static(N);
+$t = end_test($t, 'empty(self::$x)', $overhead);
+read_static(N);
+$t = end_test($t, '$x = Foo::$x', $overhead);
+write_static(N);
+$t = end_test($t, 'Foo::$x = 0', $overhead);
+isset_static(N);
+$t = end_test($t, 'isset(Foo::$x)', $overhead);
+empty_static(N);
+$t = end_test($t, 'empty(Foo::$x)', $overhead);
+Foo::call_static(N);
+$t = end_test($t, 'self::f()', $overhead);
+call_static(N);
+$t = end_test($t, 'Foo::f()', $overhead);
+$x = new Foo();
+$x->read_prop(N);
+$t = end_test($t, '$x = $this->x', $overhead);
+$x->write_prop(N);
+$t = end_test($t, '$this->x = 0', $overhead);
+$x->assign_add_prop(N);
+$t = end_test($t, '$this->x += 2', $overhead);
+$x->pre_inc_prop(N);
+$t = end_test($t, '++$this->x', $overhead);
+$x->pre_dec_prop(N);
+$t = end_test($t, '--$this->x', $overhead);
+$x->post_inc_prop(N);
+$t = end_test($t, '$this->x++', $overhead);
+$x->post_dec_prop(N);
+$t = end_test($t, '$this->x--', $overhead);
+$x->isset_prop(N);
+$t = end_test($t, 'isset($this->x)', $overhead);
+$x->empty_prop(N);
+$t = end_test($t, 'empty($this->x)', $overhead);
+$x->call(N);
+$t = end_test($t, '$this->f()', $overhead);
+$x->read_const(N);
+$t = end_test($t, '$x = Foo::TEST', $overhead);
+create_object(N);
+$t = end_test($t, 'new Foo()', $overhead);
+total($t0, "Total");
--
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