#40165 [Opn->Fbk]: define() cost

ID: 40165 Updated by: tony2001@php.net Reported By: gacek at intertele dot pl -Status: Open +Status: Feedback Bug Type: Performance problem Operating System: Linux FC4 x86_64 PHP Version: 5.2.0 New Comment: Not enough information was provided for us to be able to handle this bug. Please re-read the instructions at http://bugs.php.net/how-to-report.php If you can provide more information, feel free to add it to this bug and change the status back to "Open". Thank you for your interest in PHP. Previous Comments: ------------------------------------------------------------------------ [2007-01-19 11:33:22] gacek at intertele dot pl This is sample of "pprofp -u" output from fairly complex app: Total Elapsed Time = 2.47 Total System Time = 0.35 Total User Time = 1.36 Real User System secs/ cumm %Time (excl/cumm) (excl/cumm) (excl/cumm) Calls call s/call Memory Usage Name -------------------------------------------------------------------------------------- 13.9 0.24 0.24 0.19 0.19 0.04 0.04 850 0.0002 0.0002 0 define 12.1 0.27 0.27 0.16 0.16 0.05 0.05 18653 0.0000 0.0000 0 count 10.9 0.15 0.15 0.15 0.15 0.04 0.04 11652 0.0000 0.0000 0 is_array 9.1 0.26 0.26 0.12 0.12 0.03 0.03 15489 0.0000 0.0000 0 each 6.2 0.18 0.18 0.08 0.08 0.02 0.02 9012 0.0000 0.0000 0 array_shift 4.1 0.08 0.08 0.06 0.06 0.02 0.02 5402 0.0000 0.0000 0 ereg_replace 4.1 0.04 0.04 0.06 0.06 0.01 0.01 655 0.0001 0.0001 0 mysql_fetch_array 3.8 0.07 0.07 0.05 0.05 0.01 0.01 5277 0.0000 0.0000 0 urlencode 2.9 0.04 0.04 0.04 0.04 0.00 0.00 2520 0.0000 0.0000 0 func_num_args 2.9 0.05 0.05 0.04 0.04 0.00 0.00 1465 0.0000 0.0000 0 sprintf ------------------------------------------------------------------------ [2007-01-19 11:28:44] gacek at intertele dot pl Description: ------------ When playing with apd profiler, I have noticed huge cost of define() call. It's over 20x the cost of average count() call. Might it be apd inaccuracy or define() specifics, or define() implementation is heavily broken? ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=40165&edit=1