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]> 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] Sent: 16 June 2008 11:48 To: [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]> 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.
