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Re: php daemon

From Jerry Stuckle <jstucklex@attglobal.net>
Newsgroups comp.lang.php
Subject Re: php daemon
Date 2012-11-11 18:11 -0500
Organization A noiseless patient Spider
Message-ID <k7pbaa$dbo$1@dont-email.me> (permalink)
References (2 earlier) <k7p0ch$urc$1@speranza.aioe.org> <k7p27m$kte$1@dont-email.me> <k7p4t3$ap2$1@speranza.aioe.org> <k7p5oh$bco$1@dont-email.me> <k7p84u$p0f$1@speranza.aioe.org>

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On 11/11/2012 5:17 PM, Christoph Becker wrote:
> Jerry Stuckle wrote:
>> Notice the documentation says the zval CAN be freed - not the zval WILL
>> be freed.  Two entirely different statements.
>
> ACK.  I had noted that; therefore I wrote that the manual isn't very
> clear in this (IMO important) regard.  "can" does neither imply nor
> exclude, that it "will" be done.
>
> I've made the following test:
>
> $a = uniqid(); // force dynamic memory allocation
> echo memory_get_usage(), "\n";
> $a = 'foo'; // don't unset($a), as this will change the "symbol table"
> echo memory_get_usage(), "\n";
> gc_collect_cycles(); // force garbage collection
> echo memory_get_usage(), "\n";
>
> The result with my PHP 5.4.7 on Windows XP:
>
> 121344
> 121304
> 121304
>
> So either the zval holding the result of uniqid() is already freed, when
> $a is set to 'foo', or gc_collect_cycles() doesn't actually trigger the
> garbage collector in this case.
>

Or, memory_get_usage() does not count memory which has been marked as 
unused but not freed yet.

-- 
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
==================

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Thread

php daemon "sl@exabyte" <sb5309@hotmail.com> - 2012-11-12 01:18 +0800
  Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-11 14:04 -0500
    Re: php daemon Christoph Becker <cmbecker69@gmx.de> - 2012-11-11 21:05 +0100
      Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-11 15:35 -0500
        Re: php daemon Christoph Becker <cmbecker69@gmx.de> - 2012-11-11 22:22 +0100
          Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-11 16:36 -0500
            Re: php daemon Christoph Becker <cmbecker69@gmx.de> - 2012-11-11 23:17 +0100
              Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-11 18:11 -0500
                Re: php daemon Christoph Becker <cmbecker69@gmx.de> - 2012-11-12 14:35 +0100
                Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-12 08:38 -0500
                Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-13 07:44 -0500
                Re: php daemon Christoph Becker <cmbecker69@gmx.de> - 2012-11-14 21:19 +0100
                Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-14 16:33 -0500
                Re: php daemon Christoph Becker <cmbecker69@gmx.de> - 2012-11-14 23:13 +0100
                Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-15 07:41 -0500
                Re: php daemon Christoph Becker <cmbecker69@gmx.de> - 2012-11-15 16:55 +0100
    Re: php daemon "sl@exabyte" <sb5309@hotmail.com> - 2012-11-12 23:45 +0800
      Re: php daemon The Natural Philosopher <tnp@invalid.invalid> - 2012-11-12 16:08 +0000
  Re: php daemon Goran <goran@nospam.com> - 2012-11-13 08:57 +0100
    Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-13 07:47 -0500
      Re: php daemon Goran <goran@nospam.com> - 2012-11-13 14:54 +0100
        Re: php daemon The Natural Philosopher <tnp@invalid.invalid> - 2012-11-13 14:13 +0000
        Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-13 12:23 -0500
          Re: php daemon Goran <goran@nospam.com> - 2012-11-14 08:43 +0100
            Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-14 05:51 -0500
              Re: php daemon Goran <goran@nospam.com> - 2012-11-15 14:08 +0100
                Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-15 08:46 -0500
                Re: php daemon Goran <goran@nospam.com> - 2012-11-15 16:09 +0100
                Re: php daemon Jerry Stuckle <jstucklex@attglobal.net> - 2012-11-15 11:25 -0500
                Re: php daemon Tim Streater <timstreater@greenbee.net> - 2012-11-15 16:20 +0000

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