[cvs] [Wiki] changed: Doc/Dev/Benchmarks

[Chuck Hagenbuch]

chuck  Tue, 05 Jul 2005 12:23:08 -0700

Modified page: http://wiki.horde.org/Doc/Dev/Benchmarks
New Revision:  1.1
Change log:  tests

@@ -1 +1,29 @@
+> I've been told such by a couple different folks who are involved in
+> developing PHP.
 
+I just ran a simple benchmark.  Here are the results (for 4.3.5-dev):
+
+$var is undefined
+--------------------------------------------------------------------------
+if ($var)                    1075359033.35615200   1.53820896149    55.22%
+--------------------------------------------------------------------------
+if (isset($var))             1075359033.75500700   0.398854970932   14.32%
+--------------------------------------------------------------------------
+if (empty($var))             1075359034.16585300   0.410845994949   14.75%
+--------------------------------------------------------------------------
+if (isset($var) && $var)     1075359034.60332200   0.437469005585   15.70%
+--------------------------------------------------------------------------
+
+$var = ''; / $var = 0; / $var = 1;
+--------------------------------------------------------------------------
+if ($var)                    1075358938.68592300   0.353079080582   19.38%
+--------------------------------------------------------------------------
+if (isset($var))             1075358939.12858000   0.442656993866   24.29%
+--------------------------------------------------------------------------
+if (empty($var))             1075358939.56134500   0.432765007019   23.75%
+--------------------------------------------------------------------------
+if (isset($var) && $var)     1075358940.15466400   0.593318939209   32.56%
+--------------------------------------------------------------------------
+
+The tests are nearly identical under PHP5 except the 'if ($var)' test
+for '$$var = ''; / $var = 0; / $var = 1;' was about 2% slower.