Re: PHP 4.0 Bug #7113: count and pointers

Now why would you do $blah = count(&$data) the '&' doesn't make sense here. The code above still wouldn't make it make sense. count() doesn't modify, NO SENSE in using it there. This time difference I had can be achieved like this $file = file("whatever"); $data = &$file; $count = count ($data); (Which seems like the PROPER way to do it.) This was on a binary file (A mp3 size 6.3mb) Running on a Celly 366 / 128M --CaPS On Tue, 10 Oct 2000, Wico de Leeuw wrote: > My code makes sense > (but you don't see it because this is just a little piece of code from a > much lagere script because it was written for a bug database) > > And with me theres a much bigger time difference > maybe is my file different/lagere but the difference is there (and about > 1700% slower) > there is defintly going somthing wrong. > > Greetz, > > Wico > > At 13:21 12-10-00 +0200, Dhr. CaPS Cappert wrote: > >Lets make a comparison, > >you write code that doesn't make sense and you expect php to behave > >correctly? > > > >Its like when you punch a guy for no reason and expect him to shake your > >hand and leave.. > > > >By difference 1 sec .. I meant > > withoutref took 0.6 seconds.. > > whereas withref took 2.1 seconds.. > > > >-- CaPS > > > >On Tue, 10 Oct 2000, Wico de Leeuw wrote: > > > > > At 13:02 12-10-00 +0200, Dhr. CaPS Cappert wrote: > > > >I tried this .. however I assigned $blah to &$DATA and did a count($blah); > > > >The difference is about one second.. (granted, still to much..) > > > > > > Hiya > > > > > > 1. It's not right... should have a reason (and faster is almost always > > better) > > > 2. My test-machine isn't that fast the you realy feel the diff > > > wait one sec or wat almost 25 secs > > > and the file in now "only" 8 meg may be much bigger in the future > > > i don't think it will get faster then :) > > > > > > Greetz, > > > > > > Wico > > > > > > > > > >Bear in mind that your code doesn't make sense. I don't see why > > > >this is such a problem for you. > > > > > > > >-- CaPS > > > > > > > >On Tue, 10 Oct 2000, Wico de Leeuw wrote: > > > > > > > > > At 02:35 10-10-00 -0700, Lars Torben Wilson wrote: > > > > > >wico@cnh.nl writes: > > > > > > > From: wico@cnh.nl > > > > > > > Operating system: linux > > > > > > > PHP version: 4.0 Latest CVS (10/10/2000) > > > > > > > PHP Bug Type: Performance problem > > > > > > > Bug description: count and pointers > > > > > > > > > > > > > > Hiya > > > > > > > > > > > > > > $ADLIB_FILE is a file, size = 9mb > > > > > > > > > > > > > > $ADLIB_DATA = file($ADLIB_FILE); > > > > > > > $ADLIB_COUNT = count($ADLIB_DATA); > > > > > > > echo time() - $test . " seconden<BR>\n\n"; > > > > > > > die(); > > > > > > > > > > > > > > takes 17 secs > > > > > > > > > > > > > > $ADLIB_DATA = file($ADLIB_FILE); > > > > > > > $ADLIB_COUNT = count(&$ADLIB_DATA); > > > > > > > echo time() - $test . " seconden<BR>\n\n"; > > > > > > > die(); > > > > > > > this takes 27 secs? > > > > > > > > > > > > > > shouldn't this be faster the the first one? > > > > > > > > > > > > > > Greetz, > > > > > > > > > > > > > > Wico > > > > > > > > > > > >I just tried this with a 10MB text file and the following functions, > > > > > >running each one 5 times: > > > > > > > > > > > >$file = file('/home/torben/INBOX'); > > > > > > > > > > > >function with_ref() { > > > > > > global $file; > > > > > > $count = count(&$file); > > > > > > echo "$count<br>\n"; > > > > > >} > > > > > > > > > > > >function without_ref() { > > > > > > global $file; > > > > > > $count = count($file); > > > > > > echo "$count<br>\n"; > > > > > >} > > > > > > > > > > > >The first one runs 5 times in 0.00146 seconds; the second takes 9.0146 > > > > > >seconds to run 5 times. This is with the latest CVS. > > > > > > > > > > I guess this explains that something is really wrong > > > > > > > > > > >Perhaps there is something in the file loading itself that is causing > > > > > >the problem? For instance, when I was testing this just now, I had to > > > > > >abort one run, which left an httpd running full-bore and eating > > > > > >massive megabytes--then I ran another test, and my numbers went all > > > > > >screwy, since the earlier invocation hadn't hit its 30-second > > > > > >limit > > > > > >and was still either loading or counting. I had to restart Apache to > > > > > >get things evened out--could something similar be happening to you? > > > > > > > > > > My apache uses 60 meg when loading a file into an array this is the > > normal > > > > > behavior of large array > > > > > Some thime ago i submited a bug report about array overhead being > > very big > > > > > > > > > > I did my test about 10 times with and without the pointer > > > > > With pointer is just verry slow without you won;t even notice is doing > > > > > something with the array > > > > > is just guess the somthing wrong with my or phps logic about pointers > > > > > > > > > > Greetz, > > > > > > > > > > Wico > > > > > > > > > > > > > > > >-- > > > > > >+----------------------------------------------------------------+ > > > > > >|Torben Wilson <torben@php.net> Netmill > > > > > >iTech| > > > > > >|http://www.coastnet.com/~torben > > > > > > http://www.netmill.fi| > > > > > >|Ph: 1 250 383-9735 torben@netmill.fi| > > > > > >+----------------------------------------------------------------+ > > > > > > > > > > > > > > > -- > > > > > 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 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 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 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 > >