Hi list, I've been getting my code base ready to upgrade from 5.2 to 5.3 for all the great features and supposed performance and memory improvements, but with regular usage (ie. on my production servers) I just don't see those improvements.
With 5.2 pages load on average of 2ms and consume between 256-512k of memory at peak. The same pages under 5.3.5 take on average 4ms and consume about 1.2mb of memory at peak. The only difference in the config is that 5.3 is using mysqli with msqlnd, while the 5.2 is using libmysql for mysqli. I understand that mysqlnd should make things faster and use more memory (using PHP's native memory for storing data), but these are on pages with no database connections at all. They're pretty complicated pages with very little OO and with lots of small pieces coming from file caches. I'm guessing that 5.3 might be faster in heavy OO usage, but I can't see how a big shop can simply upgrade from 5.2 to 5.3 without performance being a big concern. Those numbers might not appear big, but they make a huge difference when serving thousands of requests/s. Are there practical reasons why 5.3 is so much slower? Is there a trick to making it behave better, or do I simply have to stick with 5.2 until it's no longer supported? Is anyone else out there in the same boat? Thanks! Joel -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
