From: grandadmirale at yahoo dot com
Operating system: Linux
PHP version: 4.3.2
PHP Bug Type: Performance problem
Bug description: Performance problem with print on large ammounts of html
Description:
------------
When using large ammounts of html (printing all at the same time or not)
there is a major slowdown while php increases the buffer to allow for more
html to be outputted. This is not a bug specific to my software as you can
see in example, it should NOT take 1 second to execute phpinfo() when my
entire script can (when not using large ammounts of html) execute in 0.05
seconds... if it hits those large ammounts though, the buffer goes up as
well as the time, sometimes all the way up to 1 or 2 seconds which is
rediculous. IF output_buffering is set high enough in php.ini it runs
perfectly fine in the time it should, but since this is not changeable via
script it becomes a major problem for scripts that need to output large
ammounts of data jumping to multiple seconds of execution time when it
should only be a portion of a second.
Reproduce code:
---------------
<?php
function getmicrotime()
{
$time = explode(' ',microtime());
return ((float)$time[0] + (float)$time[1]);
}
$timeStart = getmicrotime();
phpinfo();
print (getmicrotime() - $timeStart);
?>
Expected result:
----------------
It to execute in much under 1 second.
Actual result:
--------------
It executes in anywhere from 0.8 seconds to over 1 second.
--
Edit bug report at http://bugs.php.net/?id=24362&edit=1
--
Try a CVS snapshot: http://bugs.php.net/fix.php?id=24362&r=trysnapshot
Fixed in CVS: http://bugs.php.net/fix.php?id=24362&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=24362&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=24362&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=24362&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=24362&r=support
Expected behavior: http://bugs.php.net/fix.php?id=24362&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=24362&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=24362&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=24362&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=24362&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=24362&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=24362&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=24362&r=gnused
