init without trunk

vendor/jdorn/sql-formatter/tests/performance.php

@@ -0,0 +1,44 @@
+<?php
+require '../lib/SqlFormatter.php';
+
+//this is the default value
+//set to '0' to disable caching
+//a value between 10 and 20 seems to give the best result
+SqlFormatter::$max_cachekey_size = 15;
+
+//the sample query file is filled with install scripts for PrestaShop
+//and some sample catalog data from Magento
+$contents = file_get_contents('sql.sql');
+
+//queries are separated by 2 new lines
+$queries = explode("\n\n",$contents);
+
+//track time and memory usage
+$start = microtime(true);
+$ustart = memory_get_usage(true);
+
+//track number of queries and size of queries
+$num = 0;
+$chars = 0;
+
+foreach ($queries as $query) {
+	//do formatting and highlighting
+	SqlFormatter::format($query);
+	
+	$num++;
+	$chars += strlen($query);
+}
+
+$uend = memory_get_usage(true);
+$end = microtime(true);
+
+echo "<p>Formatted ".$num." queries using a max_cachekey_size of ".SqlFormatter::$max_cachekey_size."</p>";
+
+echo "<p>Average query length of ".number_format($chars/$num,5)." characters</p>";
+
+echo "<p>Took ".number_format($end-$start,5)." seconds total, ".number_format(($end-$start)/$num,5)." seconds per query, ".number_format(1000*($end-$start)/$chars,5)." seconds per 1000 characters</p>";
+
+echo "<p>Used ".number_format($uend-$ustart)." bytes of memory</p>";
+
+echo "<h3>Cache Stats</h3><pre>".print_r(SqlFormatter::getCacheStats(),true)."</pre>";
+