Re: php sometimes doesn't parses...

Hi Mark, I would certainly having an interest in seeing what you have done. I would like to have a script that the QA team members can run to do these tests. Zak ----- Original Message ----- From: "Mark J. Hershenson" <macosx@green-ant.com> To: "Leon Atkinson" <leon@leonatkinson.com>; <php-dev@lists.php.net> Sent: Friday, December 08, 2000 11:03 PM Subject: Re: [PHP-DEV] php sometimes doesn't parses... > > This situation deserves a well-constructed test. If the probability of it > > happening is really low, then we should try lots of iterations. I propose > > the following test: > > > > 1. Create a script like > > > > <? print("parsed"); ?> > > > > 2. Write a program in another language (Perl, C) that requests the PHP > > script a large number of times. Count and record the returned > > documents. > > > > If every returned document contains just the line "parsed", then the bug is > > not found. Any other response is the demonstration of some problem > > (though not necessarily this bug). There is probably some risk of > > encountering timeouts if the server is overloaded. > > > > I'm not sure how many iterations is "large". Maybe someone else has > > a suggestion. > > > > I can't recall any time I've seen this bug. > > > > Leon > > Actually, it can be even simpler than creating a tool to determine what's > going on. > > If you have Apache installed on your own system or one you have access to, > you can use the "ab" (Apache Bench) utility to do hardcore testing of your > setup. For instance, on my box: > > [markhers@defiant ~]$ /opt/apache/sbin/ab \ > http://www.green-ant.com/parse-test/parser.php -n 1000 > > [markhers@defiant ~]$ /opt/apache/sbin/ab \ > http://www.green-ant.com/parse-test/parser.php -n 1000 > This is ApacheBench, Version 1.3c <$Revision: 1.41 $> apache-1.3 > Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ > Copyright (c) 1998-1999 The Apache Group, > http://www.apache.org/ > > Server Software: Apache/1.3.14 > Server Hostname: www.green-ant.com > Server Port: 80 > > Document Path: /parse-test/parser.php > Document Length: 1 bytes > > Concurrency Level: 1 > Time taken for tests: 12.145 seconds > Complete requests: 1000 > Failed requests: 0 > Total transferred: 200000 bytes > HTML transferred: 1000 bytes > Requests per second: 82.34 > Transfer rate: 16.47 kb/s received > > Connnection Times (ms) > min avg max > Connect: 0 1 15 > Processing: 7 8 270 > Total: 7 9 285 > > -- > > The parser.php script is simply: > > <?php > > echo 2+2; > > ?> > > -- > > Just blitz your server, and see what your results are. You should see that > each request returns 1 byte (the number "4"). > > You should see IF you have failures, check your Apache logs and see if the > byte count equals the bytes in your script file (in my example, ~22 bytes). > If so, you're not getting parsed. If the byte count is much different, then > there are more problem to deal with. > > In that case, you should create a database table and store the results to be > analyzed. :) > > I threw a quick one together in MySQL, but need to work a little on it a > little. Contact me if you'd be interested. > > Mark > > > -- > 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 >