Attachment didn't come through. On Thu, 22 Jul 2004, Andi Gutmans wrote: > Hi guys, > > Before 5.0.0 we promised we'll get something together for solving the > performance problems caused by Zend always realpath()'ing include files (in > expand_filepath()). > Attached is a proposed implementation of such a cache. We tried to make it > as simple as possible and tests shows that it solves the performance > problems. > A few facts about it: > a) Expiration and Cache size are still hardcoded and not INI options in > tsrm_virtual_cwd.h. Didn't want to go through the trouble of doing it > because we agree on the implementation. > b) tsrm_hash.* is a full blown hash and not a stripped down hash which is > all that's needed for this. It'll be stripped down. > c) In my opinion and tests, having a memory limit on the cache works great > because it makes sure the cache doesn't go crazy and even in like 16K of > memory you can usually cache all of the realpath()'s. > d) Current expiration for an entry is 2 minutes which is also plenty. > e) I wouldn't make it much more complicated or "smarter" than this because > it'll just add lots of code and will probably not perform much better. > > Comments welcome. Let's get this baby into PHP 5.1! > > Andi
> -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: http://www.php.net/unsub.php - Andrei -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
