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Re: Windows binaries 64bit for PHP [message #178239 is a reply to message #178236]

Thu, 24 May 2012 09:40

Stig Vestl
Messages: 1
Registered: May 2012

Karma:

Junior Member

On 2012-05-24 04:18:30 +0000, Jerry Stuckle said:

> On 5/23/2012 4:45 PM, PlastiqueMAN wrote:
>> On 2012-05-11 23:38:06 +0000, The Natural Philosopher said:
>>
>>> Shake wrote:
>>>> Jerry Stuckle avait écrit le 11/05/2012 :
>>>> > On 5/11/2012 2:58 PM, Shake wrote:
>>>> >> Jerry Stuckle a couché sur son écran :
>>>> >>>
>>>> >>> Loading the script, starting the scripting module, initializing the
>>>> >>> environment, interpreting and running the script, checking for the
>>>> >>> presence of the image, storing a resized script if necessary, loading
>>>> >>> the image and sending it, and cleaning up the environment.
>>>> >>>
>>>> >>> This vs. sending the image directly via an <img ...> tag.
>>>> >>>
>>>> >>> Nope, no extra overhead! And no way to send the image without a
>>>> >>> script!
>>>> >>>
>>>> >>
>>>> >> The Extra overhead is something like in the code that generate the
>>>> >> page:
>>>> >>
>>>> >> <?php
>>>> >> if(!file_exists(IMG_PATH.$image_file)) scaleImage($image_file);
>>>> >> ?>
>>>> >>
>>>> >> Not look like an "application killer" to me.
>>>> >>
>>>> >> Greetings.
>>>> >>
>>>> >>
>>>> >
>>>> > There's a lot more to the overhead than that!
>>>>
>>>> Which?
>>>>
>>>> Is the image going to be accessed directly by its URL, or is loaded
>>>> inside a webpage? I am sure is this last case.
>>>>
>>>> So Loading a PHP script will occur 99.999% if you reescaled the image
>>>> previously with a batch or not. All the work of load an script, will
>>>> be done always.
>>>>
>>>> I don't believe that "react" to a 404 error is the good aproach, but
>>>> generating dinamically the scaled images when the page that show them
>>>> is required.
>>>>
>>>> And this only need the few lines to test if file exists and generate
>>>> the images if not.
>>>>
>>>> The fact that the image is directly accessed without pasing first for
>>>> the php script...
>>>
>>> is hardly any CPU.
>>>
>>> The same actions take place: the file must be opened headers
>>> constricted and then data streamed. whether apache or PHP does this is
>>> scarcely an issue.
>>
>> Sorry to say this, but PHP compared to the default handler in Apache is
>> sloooooow. You can test this simply by writing a php script that copies
>> some large files from a directory to another and then write an identical
>> C program...
>>
>
> What do you expect - an interpreted program versus q compiled program?
> The compiled program will always wind.

That was the point i was trying to make. If performance is an issue,
let apache serve the images.
The overhead of using PHP to check if an image exists before sending it
on every request is huge.

>
>> If this site we're talking about needs to serve a lot of request, I have
>> to agree with Jerry on this one.
>>
>>>>
>>>> Someone talked about a catalog of image... I am sure they are
>>>> accessed through a we, not directly.
>>>>
>>>> Even if they are accessed via search engines, these search engines
>>>> have to visit the scripts that would generate the scaled images.
>>>>
>>>> Greetings.

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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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