RE: [PHP-DEV] Woah

I feel like you're getting a bit personal here, but I'll refrain from doing the same and simply provide numbers. This is a demonstration to prove purely the overhead of going into a userspace function that calls an internal versus calling the internal directly. Obviously this isn't scientific, but that's not my goal. 3 scripts were created. First called _(""). Second defined a function as follows: function b($str) { return gettext($str); } Third b("") instead of _("") - note the second one was created just to try and normalize out any deviance from parsing the new function. Apache Bench was run at 1000 queries to give enough performance to illustrate a significant deviance. A concurrency of 10 and 100 were used. Each set was run 3 times and averages were taken to normalize outside factors. Tests were run randomly at various times throughout the last hour, to reduce the effect of foreign elements. First Test (using _) Concurrency 10: 50.24/50.23/57.43 = 52.63 Concurrency 100: 44.58/46.59/44.53 = 46.23 Second Test (defining b) Concurrency 10: 55.05/56.19/50.55 = 53.93 Concurrency 100: 45.65/47.06/45.71 = 46.12 Third Test (using b) Concurrency 10: 55.16/55.82/52.16 = 54.38 Concurrency 100: 46.74/46.39/47.19 = 46.77 I really truly and with all my heart believe that if simply calling a user created function could drop performance by 25%, PHP would not be a viable language. Whether my results are accurate findings or not, Rasmus's demonstration of a 26.3% performance decrease by CALLING A FUNCTION is a lot to swallow! Oh, and I'll refrain from making the muse that the latter test was faster. Having the user make their own function may not be the right solution for this problem, but its phenomenally silly to argue that it would have a large performance impact! Regards, Cristopher Daniluk President & CEO email: cris@dsnet.net direct: 330/530-2373 Digital Services Network, Inc Unleashing Your Potential voice: 800/845-4822 web: http://www.dsnet.net/ -----Original Message----- From: Chuck Hagenbuch [mailto:chuck@horde.org] Sent: Saturday, September 08, 2001 7:23 PM To: cris@dsnet.net Cc: 'PHP Developer List' Subject: RE: [PHP-DEV] Woah Quoting Cristopher Daniluk <cris@dsnet.net>: > Agreed, but is the speed loss really worth crying about? Obviously not to you, but I'm pretty sure you came down in the category of people who'd never used gettext. > It is negligible calling a userspace function versus an internal compared to > the greater work that the typical PHP script does. What authority do you have to make this statement? Rasmus posted numbers. Where are yours? -chuck -- Charles Hagenbuch, <chuck@horde.org> Some fallen angels have their good reasons. -- PHP Development Mailing List <http://www.php.net/> To unsubscribe, e-mail: php-dev-unsubscribe@lists.php.net For additional commands, e-mail: php-dev-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net

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