| Re: OPcache in php5.5.1 on Windows [message #182367 is a reply to message #182365] |
Wed, 31 July 2013 13:29   |
Jerry Stuckle
Messages: 2598
Registered: September 2010
Karma:
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Senior Member |
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On 7/31/2013 8:50 AM, Erwin Moller wrote:
> Hello cpl,
>
> Does anybody in here have experience with OPCache under windows?
> http://nl3.php.net/opcache
> It is bundled in PHP5.5 (and via PECL in earlier versions).
>
> I installed PHP5.5.1 on a SBS2008 server under IIS7 (fast cgi).
> After activating opcache, I used the suggested directives in php.ini, as
> described here:
> http://nl3.php.net/manual/en/opcache.configuration.php
>
> It does show up now in phpinfo() as:
>
> Opcode Caching Up and Running
> Optimization Enabled
> Startup OK
> Shared memory model win32
> Cache hits 12
> Cache misses 15
> Used memory 5752832
> Free memory 61356032
> Wasted memory 0
> Cached scripts 15
> Cached keys 21
> Max keys 3907
> OOM restarts 0
> Hash keys restarts 0
> Manual restarts 0
>
> So far so good (I think).
>
>
> Now I wonder: Is there any way to find out WHAT kind of performance gain
> it gives?
>
> I have a few ideas but I am not very enthusiastic about any of them:
>
> 1) Testing the time spend in the script: Not good, that is exclusive the
> time needed to interpret the script (I expect, but I couldn't find a
> decisive answer yet. If anybody knows, let me know please)
>
> 2) From end-user experience: Not good: If I time the responsetimes with
> a clockwatch on my browser, I merely measure noise I expect: time spend
> on the network, is the server busy doing other stuff, is the database
> busy, etc.
>
> 3) Making a huge complicated script, and test it. Hoping the time needed
> to interpret it is so long I can measure the difference as described in
> 2. (I haven't done this yet)
>
> What would be a good way to test the speedgains by using OPCache?
> Any ideas?
>
> Thanks for your time.
>
> Regards,
> Erwin Moller
>
>
>
Think about this: No matter how you do it, the only important
measurement is response time to the end user (system load is related,
and can also affect response time). Building a huge, complicated script
which shows a 70% performance game may make you feel better - but will
not be representative of the real world.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
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