wfDebugMem() to report memory usage

diff --git a/includes/GlobalFunctions.php b/includes/GlobalFunctions.php
index 49de9f1..01ac7ab 100644 (file)
--- a/includes/GlobalFunctions.php
+++ b/includes/GlobalFunctions.php
@@ -231,6 +231,20 @@ function wfDebug( $text, $logonly = false ) {
        }
 }
 
+/**
+ * Send a line giving PHP memory usage.
+ * @param $exact Bool : print exact values instead of kilobytes (default: false)
+ */
+function wfDebugMem( $exact = false ) {
+       $mem = memory_get_usage();
+       if( !$exact ) {
+               $mem = floor( $mem / 1024 ) . ' kilobytes';
+       } else {
+               $mem .= ' bytes';
+       }
+       wfDebug( "Memory usage: $mem\n" );
+}
+
 /**
  * Send a line to a supplementary debug log file, if configured, or main debug log if not.
  * $wgDebugLogGroups[$logGroup] should be set to a filename to send to a separate log.