Re: PHP 4.0 Bug #7113: count and pointers

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

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|Torben Wilson <torben@php.net>                     Netmill iTech|
|http://www.coastnet.com/~torben            http://www.netmill.fi|
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