Add perf test scripts

validation/iteratorPerf1.php

@@ -0,0 +1,96 @@
+<?php
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+require_once(__DIR__ . "/../src/bootstrap.php");
+
+$totalSize = 0;
+$directoryIterator = new RecursiveDirectoryIterator(__DIR__ . "/frameworks/WordPress");
+$testProviderArray = array();
+
+foreach (new RecursiveIteratorIterator($directoryIterator) as $file) {
+    if (strpos($file, ".php")) {
+        $totalSize += $file->getSize();
+        $testProviderArray[] = file_get_contents($file->getPathname());
+    }
+}
+
+$asts = [];
+$parser = new \Microsoft\PhpParser\Parser();
+
+$startMemory = memory_get_peak_usage(true);
+$startTime = microtime(true);
+
+function iterate($n) {
+    $i2 = 0;
+    foreach ($n::CHILD_NAMES as $name) {
+        $node = $n->$name;
+
+        if ($node === null) {
+            continue;
+        }
+
+        if (\is_array($node)) {
+            foreach ($node as $nodeArrItem) {
+                if ($nodeArrItem instanceof \Microsoft\PhpParser\Node) {   
+                    $i2++;
+                    $i2 += iterate($nodeArrItem);
+                }
+            }
+        } else if ($node instanceof \Microsoft\PhpParser\Node) {
+            $i2++;
+            $i2 += iterate($node);
+        } else {
+            $i2++;
+        }
+    }
+
+    return $i2;
+}
+
+$i = 0;
+foreach ($testProviderArray as $idx=>$testCaseFile) {
+    $sourceFile = $parser->parseSourceFile($testCaseFile);
+    $i += iterate($sourceFile);
+    $asts[] = $sourceFile;
+
+    if ($idx % 10 === 0) {
+        echo $idx;
+    }
+    if ($idx > 100) {
+        break;
+    }
+}
+
+echo PHP_EOL . "Total nodes: $i" . PHP_EOL;
+
+if (!isset($idx)) {
+    exit("Validation directory does not exist. First run `git submodule update --init --recursive from project root.`");
+}
+
+$asts = SplFixedArray::fromArray($asts);
+
+$endTime = microtime(true);
+$endMemory = memory_get_peak_usage(true);
+
+// TODO - multiple runs, calculate statistical significance
+$memoryUsage = $endMemory - $startMemory;
+$timeUsage = $endTime - $startTime;
+$totalSize /= 1024*1024;
+$memoryUsage /= 1024*1024;
+
+echo "MACHINE INFO\n";
+echo "============\n";
+echo "PHP int size: " . PHP_INT_SIZE . PHP_EOL;
+echo "PHP version: " . phpversion() . PHP_EOL;
+echo "OS: " . php_uname() . PHP_EOL . PHP_EOL;
+
+echo "PERF STATS\n";
+echo "==========\n";
+echo "Input Source Files (#): $idx\n";
+echo "Input Source Size (MB): $totalSize\n";
+echo PHP_EOL;
+echo "Time Usage (seconds): $timeUsage\n";
+echo "Memory Usage (MB): $memoryUsage\n";

validation/iteratorPerf2.php

@@ -0,0 +1,78 @@
+<?php
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+require_once(__DIR__ . "/../src/bootstrap.php");
+
+$totalSize = 0;
+$directoryIterator = new RecursiveDirectoryIterator(__DIR__ . "/frameworks/WordPress");
+$testProviderArray = array();
+
+foreach (new RecursiveIteratorIterator($directoryIterator) as $file) {
+    if (strpos($file, ".php")) {
+        $totalSize += $file->getSize();
+        $testProviderArray[] = file_get_contents($file->getPathname());
+    }
+}
+
+$asts = [];
+$parser = new \Microsoft\PhpParser\Parser();
+
+$startMemory = memory_get_peak_usage(true);
+$startTime = microtime(true);
+
+function iterate($n) {
+    $i = 0;
+    foreach ($n->getDescendantNodesAndTokens() as $child) {
+        $i++;
+    }
+
+    return $i;
+}
+
+$i = 0;
+foreach ($testProviderArray as $idx=>$testCaseFile) {
+    $sourceFile = $parser->parseSourceFile($testCaseFile);
+    $i += iterate($sourceFile);
+    $asts[] = $sourceFile;
+
+    if ($idx % 10 === 0) {
+        echo $idx;
+    }
+    if ($idx > 100) {
+        break;
+    }
+}
+
+echo PHP_EOL . "Total nodes and tokens: $i" . PHP_EOL;
+
+if (!isset($idx)) {
+    exit("Validation directory does not exist. First run `git submodule update --init --recursive from project root.`");
+}
+
+$asts = SplFixedArray::fromArray($asts);
+
+$endTime = microtime(true);
+$endMemory = memory_get_peak_usage(true);
+
+// TODO - multiple runs, calculate statistical significance
+$memoryUsage = $endMemory - $startMemory;
+$timeUsage = $endTime - $startTime;
+$totalSize /= 1024*1024;
+$memoryUsage /= 1024*1024;
+
+echo "MACHINE INFO\n";
+echo "============\n";
+echo "PHP int size: " . PHP_INT_SIZE . PHP_EOL;
+echo "PHP version: " . phpversion() . PHP_EOL;
+echo "OS: " . php_uname() . PHP_EOL . PHP_EOL;
+
+echo "PERF STATS\n";
+echo "==========\n";
+echo "Input Source Files (#): $idx\n";
+echo "Input Source Size (MB): $totalSize\n";
+echo PHP_EOL;
+echo "Time Usage (seconds): $timeUsage\n";
+echo "Memory Usage (MB): $memoryUsage\n";

validation/iteratorPerf3.php

@@ -0,0 +1,81 @@
+<?php
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+require_once(__DIR__ . "/../src/bootstrap.php");
+
+use Microsoft\PhpParser\Iterator\NodeIterator;
+
+$totalSize = 0;
+$directoryIterator = new RecursiveDirectoryIterator(__DIR__ . "/frameworks/WordPress");
+$testProviderArray = array();
+
+foreach (new RecursiveIteratorIterator($directoryIterator) as $file) {
+    if (strpos($file, ".php")) {
+        $totalSize += $file->getSize();
+        $testProviderArray[] = file_get_contents($file->getPathname());
+    }
+}
+
+$asts = [];
+$parser = new \Microsoft\PhpParser\Parser();
+
+$startMemory = memory_get_peak_usage(true);
+$startTime = microtime(true);
+
+function iterate($node) {
+    $i = 0;
+    $it = new \RecursiveIteratorIterator($node, \RecursiveIteratorIterator::SELF_FIRST);
+    foreach ($it as $node) {
+        $i++;
+    }
+
+    return $i;
+}
+
+$i = 0;
+foreach ($testProviderArray as $idx=>$testCaseFile) {
+    $sourceFile = $parser->parseSourceFile($testCaseFile);
+    $i += iterate($sourceFile);
+    $asts[] = $sourceFile;
+
+    if ($idx % 10 === 0) {
+        echo $idx;
+    }
+    if ($idx > 100) {
+        break;
+    }
+}
+
+echo PHP_EOL . "Total nodes: $i" . PHP_EOL;
+
+if (!isset($idx)) {
+    exit("Validation directory does not exist. First run `git submodule update --init --recursive from project root.`");
+}
+
+$asts = SplFixedArray::fromArray($asts);
+
+$endTime = microtime(true);
+$endMemory = memory_get_peak_usage(true);
+
+// TODO - multiple runs, calculate statistical significance
+$memoryUsage = $endMemory - $startMemory;
+$timeUsage = $endTime - $startTime;
+$totalSize /= 1024*1024;
+$memoryUsage /= 1024*1024;
+
+echo "MACHINE INFO\n";
+echo "============\n";
+echo "PHP int size: " . PHP_INT_SIZE . PHP_EOL;
+echo "PHP version: " . phpversion() . PHP_EOL;
+echo "OS: " . php_uname() . PHP_EOL . PHP_EOL;
+
+echo "PERF STATS\n";
+echo "==========\n";
+echo "Input Source Files (#): $idx\n";
+echo "Input Source Size (MB): $totalSize\n";
+echo PHP_EOL;
+echo "Time Usage (seconds): $timeUsage\n";
+echo "Memory Usage (MB): $memoryUsage\n";