[pLog-svn] __autoload very slow ...

[Mark Wu]

Hi All:

After the change with rev. 5979 & 5980. I think the performance issue is
solved.

I just test the original lt_include scripts, auto load only scripts and
pre-defined class loader map scripts. The  performace of  "pre-defined class
loader map scripts" is as good as "original lt_include scripts".

Now, windows lifetype developer can enjoy the autoload features, too.

Regards, Mark

> -----Original Message-----
> From: plog-svn-bounces at devel.lifetype.net 
> [mailto:plog-svn-bounces at devel.lifetype.net] On Behalf Of 
> Oscar Renalias
> Sent: Monday, October 08, 2007 8:12 PM
> To: LifeType Developer List
> Subject: Re: [pLog-svn] __autoload very slow ...
> 
> I was wondering how long it will take people to test this... 
> Not long :)
> 
> We can create a pre-defined array that contains the locations 
> of all files. Although there's quite many of those, finding a 
> single file should be pretty quick.
> 
> But if it's a performance problem in windows, maybe there 
> isn't much we can do. All I can say is that I felt no 
> performance increase or decrease in my OS X laptop, and OS X 
> is not exactly known for being a speed demon.
> 
> On 10/8/07, Mark Wu <markplace at gmail.com> wrote:
> >
> >
> > Actually, I will suggest we revert to the old way + 
> autoload new features.
> >
> > So, if developer know lifetype very well, then he can include the 
> > lifetype related files by him self in front of each scripts.
> >
> > If he is a new developer, then he can enjoy the benifit 
> from the new 
> > autoload feature (With the pre-scan scripts array as I suggested) .
> >
> > Mark
> >
> >
> >  ________________________________
> >  From: Mark Wu [mailto:markplace at gmail.com]
> > Sent: Monday, October 08, 2007 5:58 PM
> >
> > To: 'LifeType Developer List'
> > Subject: RE: [pLog-svn] __autoload very slow ...
> >
> >
> >
> > I just check the code, there are several stuffs will impact 
> the performance:
> >
> > 1. The order of folders:
> >     - If the file is locate in the last folder, then the 
> autload have 
> > to check all the folders
> >
> > 2. The number of folders:
> >     -There are about 110 folders in the folder list array.  
> I think it 
> > is too much folders for autoload
> >
> > 3. The file I/O
> >     - It seems the file I/O under windws is much worse then 
> > Unix/Linux, that why Oscar feel no big difference with autoload.
> >
> > For adapt the new autoload feature in lifetype with such 
> big quantity 
> > of folders, I think we should try to use the same skill we used in 
> > script checks.
> >
> > To generate a $include_script[$key] = $value; file for autoload.
> >
> > Then we just use array_key_exist to check the $key exist or 
> not. Then 
> > include the file.
> >
> > It will save a lot of time.
> >
> > Mark
> >
> >
> >  ________________________________
> >  From: Mark Wu [mailto:markplace at gmail.com]
> > Sent: Monday, October 08, 2007 5:36 PM
> > To: 'LifeType Developer List'
> > Subject: RE: [pLog-svn] __autoload very slow ...
> >
> >
> >
> >
> > I forgot to say this is the result of admin.php?op=newPost
> >
> > You can see there are over 7700 function call of file_exists().
> >
> > If each file_exists call() takes 1 ms. It will takes 15 seconds ..
> >
> > It is so amazing.
> >
> > Mark
> >
> >
> >  ________________________________
> >  From: Mark Wu [mailto:markplace at gmail.com]
> > Sent: Monday, October 08, 2007 5:23 PM
> > To: 'LifeType Developer List'
> > Subject: RE: [pLog-svn] __autoload very slow ...
> >
> >
> >
> > Hi All:
> >
> > I just attached my profiling file and the result with 
> wincachegrined. 
> > You can see the bottle neck is in file_exists.
> >
> > It takks about 12 seconds.
> >
> > wow ...
> >
> > Mark
> >
> >
> >
> >  ________________________________
> >  From: plog-svn-bounces at devel.lifetype.net
> > [mailto:plog-svn-bounces at devel.lifetype.net] On Behalf Of Mark Wu
> > Sent: Monday, October 08, 2007 4:16 PM
> > To: 'LifeType Developer List'
> > Subject: [pLog-svn] __autoload very slow ...
> >
> >
> >
> > Hi Oscar:
> >
> > I just test the new autoload under windows, the performace 
> is very bad under
> > windows ( apache 2.2.4, PHP5 5.2.3 & Mysql 5.0)
> >
> > In original lt_include version, every request can finished 
> within less 1-2
> > seconds.
> >
> > But, in new autoload version, every request takes almost 
> 25-35 seconds to
> > show up the page ...
> >
> > I check the cpu loading, it always in 100%. It seems PHP 
> just try search the
> > include files recursivelly
> >
> > It is really terrible ....
> >
> > Do I need to do any special setup in PHP.ini for autoload?
> >
> > Mark
> >
> >
> > _______________________________________________
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> > pLog-svn at devel.lifetype.net
> > http://limedaley.com/mailman/listinfo/plog-svn
> >
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