PHP守护进程可能的内存泄漏 [英] php daemon possible memory leak

问题描述

我已经用php编写了一个守护进程，并希望确保它不会泄漏内存，因为它将以24/7运行.

i've written a daemon in php and want to make sure it doesn't leak memory, as it'll be running 24/7.

即使以最简单的形式为守护程序使用memory_get_peak_usage也会报告该脚本在每个周期消耗更多的内存.另一方面，memory_get_usage不会增长.

even in its simplest form memory_get_peak_usage for a daemon will report that the script consumes more memory for each cycle. memory_get_usage on the other hand will not grow.

问题是:我应该担心吗?我已经将守护程序简化为基本知识，但这仍在发生.有什么想法吗?

the question is: should i worry? i've stripped down the daemon to the bare basics but this is still happening. any thoughts?

#!/usr/bin/php -q

<?php
require_once "System/Daemon.php";
System_Daemon::setOption("appName", "smsd");
System_Daemon::start();
while(!System_Daemon::isDying()){
 System_Daemon::info("debug: memory_get_peak_usage: ".memory_get_peak_usage());
 System_Daemon::info("debug: memory_get_usage: ".memory_get_usage());
 System_Daemon::iterate(2);
}

最后的提示+结论:我最终写了自己的守护程序包装程序，而不是使用pear的system_daemon.不管我如何调整此库，我都无法阻止它从内存泄漏.希望这对其他人有帮助.

FINAL NOTE + CONCLUSION: i ended up writing my own daemon wrapper, not using pear's system_daemon. regardless of how i tweaked this library i could not stop it from leaking memory. hope this helps someone else.

最后的提示+结论2:我的脚本已经投入生产超过一周，仍然没有泄漏1个字节的内存.因此-只要您非常注意它的内存消耗，就可以用php编写一个守护程序似乎是可以的.

FINAL NOTE + CONCLUSION 2: my script has been in production for over a week and is still not leaking 1 bytes of memory. so - writing a daemon in php actually seems to be ok, as long as you're very careful about its memory consumtion.

推荐答案

我遇到了同样的问题.也许最好的办法是在 PEAR 报告新的错误

I got the same problem. Maybe the best idea is to report new bug at PEAR

顺便说一句，类似的代码并没有显示该记忆泄漏:

BTW, code like that doesn't show that memleak:

#!/usr/bin/php -q

<?php
require_once "System/Daemon.php";
System_Daemon::setOption("appName", "smsd");
System_Daemon::start();
while(!System_Daemon::isDying()) {
 print ("debug: memory_get_peak_usage: ".memory_get_peak_usage()."\n");
 print ("debug: memory_get_usage: ".memory_get_usage()."\n\n");
 System_Daemon::iterate(2);

}

看起来像System_Daemon :: info()是个问题.

Look's like System_Daemon::info() is a problem.

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