#47815 [NEW]: Compile time computation of hash value decrease hash lookup time.
[email protected] ("basant dot kukreja at gmail dot com")
| Newsgroups | php.bugs |
|---|---|
| Message-ID | <[email protected]> |
From: basant dot kukreja at gmail dot com
Operating system: Solaris 10
PHP version: 5.2.9
PHP Bug Type: Performance problem
Bug description: Compile time computation of hash value decrease hash lookup time.
Description:
------------
In specweb ecommerce php benchmark, hash lookup consumes a lot of time.
For a 30 minutes measurement :
Excl. Incl. Name
User CPU User CPU
sec. sec.
434.304 914.980 zend_fetch_dimension_address
136.195 427.119 zend_get_property_info
914 seconds (13 % of user time) are spent in zend_fetch_dimension_address
out
of total 6947 seconds.
Reproduce code:
---------------
specweb benchmark.
Expected result:
----------------
Low time spent in zend_fetch_dimension_address and zend_get_property_info
Actual result:
--------------
Time spend in zend_fetch_dimension_address and zend_get_property_info is
very high.
--
Edit bug report at http://bugs.php.net/?id=47815&edit=1
--
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=47815&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=47815&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=47815&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=47815&r=fixedcvs
Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=47815&r=needdocs
Fixed in release: http://bugs.php.net/fix.php?id=47815&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=47815&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=47815&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=47815&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=47815&r=support
Expected behavior: http://bugs.php.net/fix.php?id=47815&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=47815&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=47815&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=47815&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=47815&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=47815&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=47815&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=47815&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=47815&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=47815&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=47815&r=mysqlcfg