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Re: Windows binaries 64bit for PHP [message #178064 is a reply to message #178063]

Fri, 11 May 2012 19:29

Jerry Stuckle
Messages: 2598
Registered: September 2010

Karma:

Senior Member

On 5/11/2012 3:11 PM, Michael Fesser wrote:
> .oO(Jerry Stuckle)
>
>> On 5/11/2012 5:58 AM, Michael Fesser wrote:
>>> .oO(Jerry Stuckle)
>>>
>>>> And a system which creates all the images once so it doesn't have to
>>>> keep needlessly checking to see if an image exists or not is more
>>>> efficient than one which constantly has to see if something exists or not.
>>>>
>>>> Resizing is done ONCE.
>>>
>>> Right.
>>>
>>>> Checking has to be done on EVERY REQUEST.
>>>
>>> Wrong.
>>>
>>> Micha
>>>
>>
>> You really have no idea what you're talking about, do you? But you'll
>> argue it anyway.
>
> You still miss the point (or just don't want to accept it, as usual). If
> there's a static image file, there is absolutely no additional checking
> for existance necessary (besides the one that has to be done for every
> resource the server wishes to deliver, but this doesn't matter here).
>
> If the file is there, it will be delivered as-is, if not, it triggers a
> 404 (which could then create the requested resource on demand). That's
> the same for every static HTML or CSS file, so your claim from above
> "Checking has to be done on EVERY REQUEST" is simply wrong.
>
>> After all - you think there's no overhead in 404 processing!
>
> A little maybe, but I don't think it really matters. What much has the
> server to do after it didn't find the requested resource? Deliver
> another page or call a script. I can't think of much more, except maybe
> a second log entry. The typical redirects from http://example.com/foo to
> http://example.com/foo/, which are still seen on many sites, are much
> more expensive.
>
> Micha
>

No, you don't get it. A 404 causes even more overhead - Apache has to
detect the 404, determine which is the correct error page to load, and
load it. In this case it's a PHP file, so the PHP module has to be
loaded and the environment initialized, etc.

Then the PHP code needs to determine if it is even a request for an
image, and if the image can be found and resized. If so, the code must
resize the image and send it. Then the module cleanup has to be performed.

Plus, depending on what the sysadmin has installed for Apache
extensions, other modules may be called in the process.

That's a lot of overhead, especially when you know the images and the
sizes you need ahead of time.

It's fine if you're running 200 hits/day, but not in a busy server.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================

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[Message index]

		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Thu, 10 May 2012 03:53
		Re: Windows binaries 64bit for PHP By: Daniel Pitts on Thu, 10 May 2012 20:15
		Re: Windows binaries 64bit for PHP By: The Natural Philosoph on Thu, 10 May 2012 20:48
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Thu, 10 May 2012 21:05
		Re: Windows binaries 64bit for PHP By: Daniel Pitts on Thu, 10 May 2012 21:29
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Thu, 10 May 2012 23:35
		Re: Windows binaries 64bit for PHP By: Daniel Pitts on Fri, 11 May 2012 01:50
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Fri, 11 May 2012 02:22
		Re: Windows binaries 64bit for PHP By: Daniel Pitts on Fri, 11 May 2012 17:03
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Fri, 11 May 2012 17:56
		Re: Windows binaries 64bit for PHP By: Michael Fesser on Fri, 11 May 2012 09:58
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Fri, 11 May 2012 10:51
		Re: Windows binaries 64bit for PHP By: Michael Fesser on Fri, 11 May 2012 19:11
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Fri, 11 May 2012 19:29
		Re: Windows binaries 64bit for PHP By: Michael Fesser on Fri, 11 May 2012 19:53
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Fri, 11 May 2012 22:11
		Re: Windows binaries 64bit for PHP By: Michael Fesser on Fri, 11 May 2012 23:00
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Sat, 12 May 2012 00:44
		Re: Windows binaries 64bit for PHP By: The Natural Philosoph on Fri, 11 May 2012 23:38
		Re: Windows binaries 64bit for PHP By: The Natural Philosoph on Fri, 11 May 2012 23:36
		Re: Windows binaries 64bit for PHP By: The Natural Philosoph on Fri, 11 May 2012 13:01
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Fri, 11 May 2012 14:34
		Re: Windows binaries 64bit for PHP By: Shake on Fri, 11 May 2012 18:58
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Fri, 11 May 2012 19:30
		Re: Windows binaries 64bit for PHP By: Shake on Fri, 11 May 2012 19:46
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Fri, 11 May 2012 22:14
		Re: Windows binaries 64bit for PHP By: Shake on Sat, 12 May 2012 12:42
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Sat, 12 May 2012 15:04
		Re: Windows binaries 64bit for PHP By: Shake on Sat, 12 May 2012 16:40
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Sat, 12 May 2012 19:49
		Re: Windows binaries 64bit for PHP By: The Natural Philosoph on Sat, 12 May 2012 21:59
		Re: Windows binaries 64bit for PHP By: Shake on Sun, 13 May 2012 11:46
		Re: Windows binaries 64bit for PHP By: Peter H. Coffin on Sun, 13 May 2012 12:50
		Re: Windows binaries 64bit for PHP By: Anders Wegge Keller on Sun, 13 May 2012 14:15
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Sun, 13 May 2012 14:36
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Sun, 13 May 2012 13:06
		Re: Windows binaries 64bit for PHP By: Shake on Sun, 13 May 2012 16:54
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Sun, 13 May 2012 17:27
		Re: Windows binaries 64bit for PHP By: Peter H. Coffin on Mon, 14 May 2012 03:26
		Re: Windows binaries 64bit for PHP By: Shake on Mon, 14 May 2012 07:51
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Mon, 14 May 2012 12:04
		Re: Windows binaries 64bit for PHP By: Shake on Mon, 14 May 2012 12:25
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Mon, 14 May 2012 13:37
		Re: Windows binaries 64bit for PHP By: Shake on Mon, 14 May 2012 14:22
		Re: Windows binaries 64bit for PHP By: Michael Fesser on Mon, 14 May 2012 14:45
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Mon, 14 May 2012 18:07
		Re: Windows binaries 64bit for PHP By: Michael Fesser on Mon, 14 May 2012 20:37
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Mon, 14 May 2012 21:47
		Re: Windows binaries 64bit for PHP By: The Natural Philosoph on Mon, 14 May 2012 15:53
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Mon, 14 May 2012 18:06
		Re: Windows binaries 64bit for PHP By: Shake on Mon, 14 May 2012 18:36
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Mon, 14 May 2012 18:53
		Re: Windows binaries 64bit for PHP By: Michael Fesser on Mon, 14 May 2012 21:04
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Mon, 14 May 2012 21:48
		Re: Windows binaries 64bit for PHP By: Michael Fesser on Mon, 14 May 2012 21:00
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Mon, 14 May 2012 21:57
		Re: Windows binaries 64bit for PHP By: The Natural Philosoph on Fri, 11 May 2012 23:38
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Sat, 12 May 2012 00:46
		Re: Windows binaries 64bit for PHP By: PlastiqueMAN on Wed, 23 May 2012 20:45
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Thu, 24 May 2012 04:18
		Re: Windows binaries 64bit for PHP By: Stig Vestl on Thu, 24 May 2012 09:40
		Re: Windows binaries 64bit for PHP By: Shake on Thu, 24 May 2012 10:00
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Thu, 24 May 2012 13:12
		Re: Windows binaries 64bit for PHP By: Shake on Thu, 24 May 2012 14:29
		Re: Windows binaries 64bit for PHP By: Michael Fesser on Thu, 24 May 2012 18:41
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Thu, 24 May 2012 19:17
		Re: Windows binaries 64bit for PHP By: Luuk on Fri, 11 May 2012 19:53
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Fri, 11 May 2012 22:15
		Re: Windows binaries 64bit for PHP By: Luuk on Sat, 12 May 2012 08:00
		Re: Windows binaries 64bit for PHP By: Jerry Stuckle on Sat, 12 May 2012 11:29
		Re: Windows binaries 64bit for PHP By: Peter H. Coffin on Sat, 12 May 2012 11:47
		Re: Windows binaries 64bit for PHP By: The Natural Philosoph on Fri, 11 May 2012 23:40
		Re: Windows binaries 64bit for PHP By: The Natural Philosoph on Fri, 11 May 2012 00:07

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