Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:11489 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 46863 invoked by uid 1010); 22 Jul 2004 22:23:01 -0000 Delivered-To: ezmlm-scan-internals@lists.php.net Delivered-To: ezmlm-internals@lists.php.net Received: (qmail 46783 invoked from network); 22 Jul 2004 22:23:01 -0000 Received: from unknown (HELO mail.zend.com) (80.74.107.235) by pb1.pair.com with SMTP; 22 Jul 2004 22:23:01 -0000 Received: (qmail 19364 invoked from network); 22 Jul 2004 22:22:59 -0000 Received: from localhost (HELO AndiNotebook.zend.com) (127.0.0.1) by localhost with SMTP; 22 Jul 2004 22:22:59 -0000 Message-ID: <5.1.0.14.2.20040722152253.02cedeb0@127.0.0.1> X-Sender: andi@127.0.0.1 X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Thu, 22 Jul 2004 15:22:56 -0700 To: internals@lists.php.net In-Reply-To: <5.1.0.14.2.20040722151809.02abfeb8@127.0.0.1> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Subject: Re: Fwd: [PHP-DEV] realpath() caching From: andi@zend.com (Andi Gutmans) References: <5.1.0.14.2.20040722151809.02abfeb8@127.0.0.1> http://snaps.php.net/~andi/ At 03:18 PM 7/22/2004 -0700, Andi Gutmans wrote: >Let me know if the attachment doesn't come through again and I'll post it >on the web > >>Date: Thu, 22 Jul 2004 14:30:00 -0700 >>To: internals@lists.php.net >>From: Andi Gutmans >>Subject: [PHP-DEV] realpath() caching >> >>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 > > > >-- >PHP Internals - PHP Runtime Development Mailing List >To unsubscribe, visit: http://www.php.net/unsub.php