Reduce total profiling overhead by about 6%, and internal overhead by about 40%

diff --git a/includes/Profiling.php b/includes/Profiling.php
index 0b252a2..8eb6017 100755 (executable)
--- a/includes/Profiling.php
+++ b/includes/Profiling.php
@@ -59,10 +59,11 @@ class Profiler
                if ( $wgDebugFunctionEntry && function_exists( 'wfDebug' ) ) {
                        wfDebug( str_repeat( ' ', count( $this->mWorkStack ) ) . 'Entering '.$functionname."\n" );
                }
-               array_push( $this->mWorkStack, array($functionname, count( $this->mWorkStack ), microtime(), memory_get_usage() ) );
+               $this->mWorkStack[] = array($functionname, count( $this->mWorkStack ), microtime(), memory_get_usage() );
        }
 
        function profileOut( $functionname ) {
+               $time = microtime();
                $memory = memory_get_usage();
                global $wgDebugProfiling, $wgDebugFunctionEntry;
 
@@ -82,9 +83,9 @@ class Profiler
                                        wfDebug( "Profiling error: in({$bit[0]}), out($functionname)\n" );
                                }
                        }
-                       array_push( $bit, microtime() );
-                       array_push( $bit, $memory );
-                       array_push( $this->mStack, $bit );
+                       $bit[] = $time;
+                       $bit[] = $memory;
+                       $this->mStack[] = $bit;
                }
        }