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Re: [users@httpd] Slow Apache 2.4 server


On Friday, June 22, 2018 09:18:02 Gryzli Bugbear wrote:
> Hi,
> 
> Yes, it is expected php to be faster and your hardware-stronger server
> to perform better, but there is a problem , which has to be diagnosed,
> and from my experience, while troubleshooting everything should be
> checked and nothing to be taken as a granted. Sometimes the problem is
> right in the place you would never think of.
> 
> Could you share information about the php execution times for the same
> file on both of the servers , what are the timings ?
> 
> 
> I'm thinking of some questions about:
> 
> 
> 1) Do you have some additional software on the new server (ModSecurity,
> some firewall or things like that)

No, all servers are behind a CheckPoint Firewall 1. No firewall on the individual servers.

But I start adding PHP code like:

$x = microtime(true);
PHP statement
$usedTime = microtime(true) - $x;
and then log the used time with a label to a file.

It turned out that there is a require statement that take time - almost twice as much as 
on the old server.

The old server is using APC while I use memcached on the new server. I think the problem 
is that the preprocessed PHP file is NOT stored in the cache and that this cause the long 
execution time.

I'm trying to find out IF the preprocessed PHP file is stored in the cache or not. I 
suspect they are not.
I know that this is something that may be outside the scope of this mailing list, but if 
there is some guru's out there that can tell me what to check here... I would be glad to 
hear from them :)

Thanks for the replies on this issue.
-- 
Jørn Dahl-Stamnes
homepage: http://www.dahl-stamnes.net/dahls/

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