Re: Does Axis2 provide much better performance than Axis 1.X?

Wed, 18 Jun 2008 14:57:25 -0700

Having the Axis2 client communicating with an Axis 1 service operate twice as fast as an Axis2 client communicating with an equivalent Axis2 service is certainly surprising. Do you know the size of the messages you're sending? For large messages the actual data handling (where Axis2 should be very good) should be the most important factor in performance. For small messages performance is more likely to be governed by the actual connection handling and processing path that connects to the service code, and a minor glitch in the handling can have a large impact.
Also, why do you need two separate versions of the client? I'd think you should be able to use a common WSDL for the two implementations, so that you only need one client implementation in each framework and can switch the target URL to have it access either service implementation. That would at least make a better comparison. 

 - Dennis

--
Dennis M. Sosnoski
SOA and Web Services in Java
Axis2 Training and Consulting
http://www.sosnoski.com - http://www.sosnoski.co.nz
Seattle, WA +1-425-939-0576 - Wellington, NZ +64-4-298-6117



[EMAIL PROTECTED] wrote:

Hi,

 
Thanks for your input.
I noticed that the output of Axis2 include prefix of namespace(s) for 
each element while in Axis1 it uses the default namespace. This 
actually makes response of Axis2 larger than Axis1.
I did some more performance tests based on two web services 
implemented with Axis 1 and Axis 2, they provide exactly the same 
service and both of them use Wrapped style. For each deployed service 
mention before, I generated two version of clients (Axis 1 client and 
Axis 2 client), so in total I have 4 clients:
 
1. Axis 1 client for Axis 1 service

2. Axis 1 client for Axis 2 service
3. Axis 2 client for Axis 1 service
4. Axis 2 client for Axis 2 service

 
I found that client 1 and 2 are much slower than 3 and 4 (this 
explains Axis 2 can do XML binding faster than Axis 1). However. the 
performance of test 3 is two times faster than test 4, which makes me 
very curious.
 
Does it have something to do with the way how Axis 2 generate XML responses 
(with namespace prefix as mentioned before)?
 
 
Best wishes,
Mai Sun 
------------------------------------------------------------------------

*From:* Amila Suriarachchi [mailto:[EMAIL PROTECTED]
*Sent:* 17 June 2008 15:16
*To:* [email protected]
*Subject:* Re: Does Axis2 provide much better performance than Axis 1.X?




On Mon, Jun 16, 2008 at 4:07 PM, <[EMAIL PROTECTED] 
<mailto:[EMAIL PROTECTED]>> wrote:


    Dear Keith,

     
    Thanks for your reply.

    We're aware that Axis2 is much faster than Axis1.X and we have
    conducted similar tests as described in the articles.
    Our question is, is the performance gain in Axis2 is due to the
    use of StAX API? In my opinion StAX is not faster than SAX , so
    how come Axis2 is 5 times faster than Axis1.X?


 


    (We assumed the ADB binding part in Axis1.X performs as well as
    Axis 2).



I am not much familiar with Axis1.x ADB. But Axis2 ADB directly read 
the underline stax Api when creating the data binding objects. if 
Axis1.x creates any intermediate object structure then that may reduce 
the performance.


thanks,
Amila.


     
    Best wishes,

    Mai Sun

    ------------------------------------------------------------------------
    *From:* keith chapman [mailto:[EMAIL PROTECTED]
    <mailto:[EMAIL PROTECTED]>]
    *Sent:* 16 June 2008 11:48
    *To:* [email protected] <mailto:[email protected]>
    *Subject:* Re: Does Axis2 provide much better performance than
    Axis 1.X?

    Hi,

    Here are some results of performance testing We've done. You can
    go through these articles to see the reality (Axis2 is FAST).

    http://wso2.org/library/91
    http://wso2.org/library/588

    Thanks,
    Keith.

    On Mon, Jun 16, 2008 at 2:43 PM, <[EMAIL PROTECTED]
    <mailto:[EMAIL PROTECTED]>> wrote:

        Hi,

        Sorry for double posting…...

        I read somewhere that Axis2 provides better performance
        comparing to Axis 1.X due to the introduction of StAX XML
        parsing. Based some tests, I can see that for large XML
        document Axis2 is 5 to 10 times faster than Axis 1.X. I'm a
        bit confused here since Axis1.X uses SAX parser which should
        be at least as fast as StAX parser, so why the performance
        improvement is achieved?

        Thanks a lot!

        Regards,
        Mai Sun





    -- 
    Keith Chapman

    Senior Software Engineer
    WSO2 Inc.
    Oxygenating the Web Service Platform.
    http://wso2.org/

    blog: http://www.keith-chapman.org




--
Amila Suriarachchi,

WSO2 Inc. 


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