Re: Re: php sometimes doesn't parses...

From: Date: Sat, 09 Dec 2000 11:48:21 +0000
Subject: Re: Re: php sometimes doesn't parses...
References: 1  Groups: php.qa 
Request: Send a blank email to php-qa+get-1770@lists.php.net to get a copy of this message
:) As do I - funny how that goes... ----- Original Message ----- From: "James Moore" <jmoore@php.net> To: "Zak Greant" <zak@nucleus.com>; "Mark J. Hershenson" <macosx@green-ant.com> Cc: "PHP Quality Assurance Team Mailing List" <php-qa@lists.php.net> Sent: Saturday, December 09, 2000 4:46 AM Subject: RE: [PHP-QA] Re: [PHP-DEV] php sometimes doesn't parses... > Zak, Mark, > > I currently have my machine here doing a million iterations with php 404pl1 > just using > the apache benchmark. the other option might be to make a shell script that > runs lynx > with the correct URL a set number of times but this seems far better and > easier to me > I would like to see how you think this DB thing might work.. > > Cheers, > > James > > -----Original Message----- > From: Zak Greant [mailto:zak@nucleus.com] > Sent: 09 December 2000 11:36 > To: Mark J. Hershenson > Cc: PHP Quality Assurance Team Mailing List > Subject: [PHP-QA] Re: [PHP-DEV] 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 > > > > > -- > PHP Quality Assurance Mailing List <http://www.php.net/> > To unsubscribe, e-mail: php-qa-unsubscribe@lists.php.net > For additional commands, e-mail: php-qa-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net >

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