From: narasius at gmail dot com
Operating system: Linux
PHP version: 5.4.11
Package: Performance problem
Bug Type: Bug
Bug description:Using exceptions is much slower than using function-approach
Description:
------------
In speed-sensible application this issue might affect the efficiancy. It
appears that using an exception to report some error is at least 10 times
slower (with recursion of 3) that using old-fashioned function-approach.
For test-script below timing for using exception is 2.962 seconds, for
using function-approach timing is 0.336 seconds.
Test script:
---------------
<?php
function exceptionf1()
{
throw new Exception( 'msg' ) ;
}
function exceptionf2()
{
exceptionf1() ;
}
function exceptionf3()
{
exceptionf2() ;
}
function returnfunction1( &$error_msg )
{
$error_msg = 'msg' ;
return false ;
}
function returnfunction2( &$error_msg )
{
return returnfunction1( $error_msg ) ;
}
function returnfunction3( &$error_msg )
{
return returnfunction2( $error_msg ) ;
}
$t1 = microtime( true ) ;
for ( $i = 0 ; $i < 1000000 ; $i++ ) {
$success = true ;
try {
exceptionf3() ;
} catch ( Exception $e ) {
$success = false ;
$error_msg = $e->getMessage() ;
}
}
$d = microtime( true ) - $t1 ;
print "d=$d\n" ;
$t1 = microtime( true ) ;
for ( $i = 0 ; $i < 1000000 ; $i++ ) {
$success = returnfunction3( $error_msg ) ;
}
$d = microtime( true ) - $t1 ;
print "d=$d\n" ;
--
Edit bug report at https://bugs.php.net/bug.php?id=64084&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=64084&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=64084&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=64084&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=64084&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=64084&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=64084&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=64084&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=64084&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=64084&r=support
Expected behavior: https://bugs.php.net/fix.php?id=64084&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=64084&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=64084&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=64084&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64084&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=64084&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=64084&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=64084&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=64084&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=64084&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=64084&r=mysqlcfg
