From 8341b018c8401c9598e123069e5e8dc1f3d76fd2 Mon Sep 17 00:00:00 2001
From: Antoine Musso <hashar@users.mediawiki.org>
Date: Tue, 26 Oct 2010 17:21:35 +0000
Subject: [PATCH] Follow up r75429 : benchmark for wfIsWindows(); Also
 implements a basic class to build new benchmarks.

---
 maintenance/benchmarks/Benchmarker.php       | 72 ++++++++++++++++++++
 maintenance/benchmarks/bench_wfIsWindows.php | 46 +++++++++++++
 2 files changed, 118 insertions(+)
 create mode 100644 maintenance/benchmarks/Benchmarker.php
 create mode 100644 maintenance/benchmarks/bench_wfIsWindows.php

diff --git a/maintenance/benchmarks/Benchmarker.php b/maintenance/benchmarks/Benchmarker.php
new file mode 100644
index 0000000000..9149ea2d09
--- /dev/null
+++ b/maintenance/benchmarks/Benchmarker.php
@@ -0,0 +1,72 @@
+<?php
+/**
+ * Create a doxygen subgroup of Maintenance for benchmarks
+ * @defgroup Benchmark
+ * @ingroup Maintenance
+ */
+
+/**
+ * TODO: report PHP version, OS ..
+ * @file
+ * @ingroup Benchmark
+ */
+
+require_once( dirname( __FILE__ ) . '/../Maintenance.php' );
+abstract class Benchmarker extends Maintenance {
+	private $results;
+
+	public function __construct() {
+		parent::__construct();
+		$this->addOption( 'count', "How many time to run a benchmark", false, true );
+	}
+
+	public function bench( array $benchs ) {
+		$bench_number = 0;
+		$count = $this->getOption( 'count' );
+
+		foreach( $benchs as $bench ) {
+			// handle empty args
+			if(!array_key_exists( 'args', $bench )) {
+				$bench['args'] = array();
+			}
+
+			$bench_number++;
+			$start = wfTime();
+			for( $i=0; $i<$count; $i++ ) {
+				call_user_func_array( $bench['function'], $bench['args'] );
+			}
+			$delta = wfTime() - $start;
+
+			// function passed as a callback
+			if( is_array( $bench['function'] ) ) {
+				$ret = get_class( $bench['function'][0] ). '->' . $bench['function'][1];
+				$bench['function'] = $ret;
+			}
+
+			$this->results[$bench_number] = array(
+				'function'  => $bench['function'],
+				'arguments' => $bench['args'], 
+				'count'     => $count,
+				'delta'     => $delta,
+				'average'   => $delta / $count,
+				);
+		}
+	}
+
+	public function getFormattedResults( ) {
+		$ret = '';
+		foreach( $this->results as $res ) {
+			// show function with args
+			$ret .= sprintf( "%s times: function %s(%s) :\n",
+				$res['count'],
+				$res['function'],
+				join( ', ', $res['arguments'] )
+			);
+			$ret .= sprintf( "   %6.2fms (%6.2fms each)\n",
+				$res['delta']   * 1000,
+				$res['average'] * 1000
+			);
+		}
+		return $ret;
+	}
+}
diff --git a/maintenance/benchmarks/bench_wfIsWindows.php b/maintenance/benchmarks/bench_wfIsWindows.php
new file mode 100644
index 0000000000..c7292066d5
--- /dev/null
+++ b/maintenance/benchmarks/bench_wfIsWindows.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * This come from r75429 message
+ * @author Platonides 
+ */
+
+require_once( dirname( __FILE__ ) . '/Benchmarker.php' );
+class bench_wfIsWindows extends Benchmarker {
+
+	public function __construct() {
+		parent::__construct();	
+	}
+
+	public function execute() {
+		$this->bench( array(
+			array( 'function' => array( $this, 'wfIsWindows' ) ),
+			array( 'function' => array( $this, 'wfIsWindowsCached' ) ),
+		));
+		print $this->getFormattedResults();
+	}
+
+	static function is_win() {
+		return substr( php_uname(), 0, 7 == 'Windows' );
+	}
+
+	// bench function 1
+	function wfIsWindows() {
+		if( self::is_win() ) {
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	// bench function 2
+	function wfIsWindowsCached() {
+		static $isWindows = null;
+		if( $isWindows == null ) {
+			$isWindows = self::is_win();
+		}
+		return $isWindows;
+	}
+}
+
+$maintClass = 'bench_wfIsWindows';
+require_once( DO_MAINTENANCE );
-- 
2.20.1