Re: PHP 64-bit binaries?

Pierre Joye wrote:
> hi,
>
> On Sun, Oct 16, 2011 at 12:24 AM, Lester Caine<[email protected]>  wrote:
>> Keith Davis wrote:
>>>>
>>>>  From everything that I've heard, there is not much benefit to a x64
>>>
>>> binary for PHP.
>>
>> Running all 64bit including the database, I'm seeing a reasonable
>> performance improvement over a pure 32 bit set-up on the same AMD 64bit
>> hardware using 64bit vista order of 10 to 15% faster. It was also worth
>> pointing out that the same hardware runs a good 50% faster again on a 64bit
>> Linux OS. I think this shows that the OS is the problem rather than the
>> 64bit software, but the Linux OS does seem to use the multiple cores more
>> efficiently. I've not tested both with a 64 bit version of Windows7, the
>> full 64bit setup installed and ran, so I've not bothered swapping to all
>> 32bit.
>
> PHP is slower in 64bit than in 32bit modes. Databases (be oracle,
> mysql or other) are another stories and many of them are faster.
> However one does not have to run php in 64bit mode to talk to database
> servers running in 64bit mode.
>
> That being said, the main issues are not only for php but many
> libraries used by php. They did not support windows 64bit very well
> and they have not been tested enough to be ran on production servers
> safely (by all means).

I think that perhaps the thing that is different in all my testing is that 
eaccelerator is enabled. That is compiled 64bit as are all the other additional 
libraries I use, such as imagemagick and the firebird client. I need to produce 
a set of publishable performance figures on the machine that I've been testing 
on, but that would take some time as I am more than happy with the current all 
64bit setup. Testing each bit as 32bit or 64bit would take some work, but I will 
endeavour just to switch the php section ... if I can get 32bit versions of all 
the libraries currently being used with it.

Mixing 32bit and 64bit just seems totally wrong to me ... and I am not seeing 
any unexplainable problems with my current setup, which has been running since I 
first posted the 64bit links without even having to reboot windows. Something I 
still have to do on customer sites with the 32bit setups :(

-- 
Lester Caine - G8HFL
-----------------------------
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