Re: phpng: Refactored PHP Engine with Big Performance Improvement

From: Date: Mon, 12 May 2014 13:57:48 +0000
Subject: Re: phpng: Refactored PHP Engine with Big Performance Improvement
References: 1 2 3 4 5 6 7 8 9 10 11 12 13  Groups: php.internals 
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On 5/12/14, 12:21 AM, Dmitry Stogov wrote:
> the performance difference may be significant.
> For example qdig.
> 
> mod_php (PIC)       440 req/sec
> FastCGI (non-PIC)  537 req/sec
> 
> The bechmark was done with 32-bit build of phpng.
> 
> I didn't get time to investigate it in all details, but it'll really
> make sense.

But on 32-bit mod_php (libphp5.so) doesn't need to be PIC, does it? We
went through this many years ago and worked out that a non-PIC
libphp5.so works fine.

Things are a bit different on 64-bit because of 32-bit immediate operands.

However, I don't really believe that PIC vs. non-PIC accounts for
anywhere near a 20% performance difference in a real-world scenario. Can
you build phpng non-pic and run the same test again?

-Rasmus



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