ID: 39879
Updated by: [EMAIL PROTECTED]
Reported By: roberto at spadim dot com dot br
-Status: Open
+Status: Bogus
Bug Type: Performance problem
Operating System: ALL
PHP Version: 5.2.0
New Comment:
>we really need passed parameter?
We do.
>could we check if type is string, if it is string return
>without convertion?
That's exactly what it does.
Previous Comments:
------------------------------------------------------------------------
[2006-12-19 14:26:16] roberto at spadim dot com dot br
i read the source, but
we really need passed parameter?
could we check if type is string, if it is string return without
convertion?
can we optimize this function by this way?
using &$str could have better performace?
------------------------------------------------------------------------
[2006-12-19 09:28:51] [EMAIL PROTECTED]
That's because you're comparing apples to oranges.
Internal function has to copy the passed parameter, while userspace
function may use copy-on-write, avoiding the malloc-memcpy-free cycle
on each iteration.
------------------------------------------------------------------------
[2006-12-18 22:03:39] roberto at spadim dot com dot br
Description:
------------
maybe strval isn't otimized
see reproduce code
Reproduce code:
---------------
<?php
function ret($st){return($st);}
$qnt=1000000;
$str=str_repeat("ae",1000);
$st1=microtime(1);
for ($i=0;$i<$qnt;$i++)
ret($str);
echo (microtime(1)-$st1)."\n";
$st1=microtime(1);
for ($i=0;$i<$qnt;$i++)
strval($str);
echo (microtime(1)-$st1)."\n\n";
?>
Expected result:
----------------
expect to result 2
be small than result 1
Actual result:
--------------
result 1 is bigger than 2
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Edit this bug report at http://bugs.php.net/?id=39879&edit=1
