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From Reinhard Poetz <reinh...@apache.org>
Subject Re: Speed of jx-macros compared to FormsTransformer
Date Fri, 20 May 2005 07:49:44 GMT
Vadim Gritsenko wrote:
> Reinhard Poetz wrote:
> 
>> Daniel Fagerstrom wrote:
>>
>>> If the null check for value at line 79 in Set is changed to a null 
>>> test for this.value we get the behaviour that we should have IMO.
>>>
>>> I would assume that the various jx:set for helper methods that has 
>>> the return type void eavluates to null, and invokes the body 
>>> evaluation. It is still strange that doing nothing should take so 
>>> long time.
>>>
>>> Could you test the proposed change and post new profiling data?
>>
>>
>>
>> here we go, same example again:
>>
>>                         complete       jxt
>> cFormsTransformer         170 ms       n/a
>> jx_macro_before           350 ms    250 ms
>> jx_macro_after*           190 ms    110 ms
>>
>> * implementing the change proposed by Daniel
>>
>> details can found here:
>> http://people.apache.org/~reinhard/jx_profiling/jx_macro_nostyle_after_change_template_packages.html

>>
>> http://people.apache.org/~reinhard/jx_profiling/jx_macro_nostyle_before_change_template_packages.html

>>
> 
> 
> You can't really derive any conclusions from single invocation. Collect 
> profiling data over several minutes, results will be more reliable. 
> Especially since time granularity is often ~ 10ms.
> 
> And (don't know what your setup is ...) you can group together time 
> taken by org.apache.xalan package - no need to collect CPU data on those...

ok

> 
>> here the JMeter comparison using the test in 
>> /trunk/tools/jmeter/CocoonForms_JXTemplate.jmx (10 parallel threads):
>>
>> form1 - JXTemplate
>> ******************
>>
>> url                 count  average  min      max     error    rate
>> -------------------------------------------------------------------------
>> Load form             10    107    30    280    0,00%    11,2/sec
>> Enter Email-Adress (1)    500    114    20    541    0,00%    4,6/sec
>> Enter Email-Adress (2)    500    111    20    530    0,00%    4,6/sec
>> Start Over Request    500    122    20    541    0,00%    4,5/sec
>> TOTAL                   1510    116    20    541    0,00%    13,6/sec
>>
>> form1 - FormsTransformer
>> ************************
>>
>> url                 count  average  min      max     error    rate
>> -------------------------------------------------------------------------
>> Load form        10    55    50    80    0,00%    10,5/sec
>> Enter Email-Adress (1)    500    156    20    651    0,00%    4,5/sec
>> Enter Email-Adress (2)    500    147    20    641    0,00%    4,5/sec
>> Start Over Request    500    136    20    621    0,00%    4,6/sec
>> TOTAL            1510    145    20    651    0,00%    13,4/sec
>>
>> I can't explain why, but these two tests show that jx-macro is faster 
>> than the transformer now, wow!
> 
> 
> Can you re-test with latest template transformer - just to confirm that 
> it did not got much slower after refactoring.

it's done with the refactored version (rev170868)


-- 
Reinhard Pötz           Independent Consultant, Trainer & (IT)-Coach 

{Software Engineering, Open Source, Web Applications, Apache Cocoon}

                                        web(log): http://www.poetz.cc
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