I'd suggest running a packet sniffer like ethereal to see what's going on. I haven't seen any specific problems with .NET, but I have seen some bizarre quirks in the way the MS stack that handles the HTTP protocol talks to the Tomcat implementation of HTTP (i.e. nothing generalizable, but enough reason to encourage you to do your own investigation). For parsing tasks, like schema validation and transformations, we've seen from working with our exchange partners that the MS parser is generally much faster than the J2EE implementations. -- Andy
>>> [EMAIL PROTECTED] 01/11/05 09:46AM >>> Hi, I'm using Axis 1.1 (under JRE 1.3.1_01) as the client to consume a Web Service exposed by a Siebel system. As usual, proxy classes were generated, based on the WSDL exposed by the Siebel system and compilation runs fine. The problem is that this Web Service returns a 17k response and sometimes it takes 5 seconds for Web service completion. I've switched from Xerces parser to Piccolo to see if the problem was with the parser, but it remained the same. I've digged through Axis source code until I reached the DeserializationContextImpl class where parsing gets done and I was able to measure parsing times. With Xerces, I get a 30 ms average parsing time and with Piccolo an average of 20 ms (pretty good, btw). I've noticed that the input stream that is passed to the parser does not contain the full XML document to parse - most of the time it contains only 8192 bytes and, when the parser attempts to read it, it somehow triggers reading (I assume from a network socket) of the rest of the document. When I use a .Net (.Net Framework 1.1) client to consume the same Web Service, on the Server and Client machines, results are much better - they are often below 1 second and never exceed 2 seconds. How can I influence the way Java/Axis uses the network (if it really is the problem), e.g., setting a property which, in some cases, increases the buffer size for network communication? Or the way .Net's virtual machine uses the Windows Network subsystem is always more efficient than Java? Many thanks. Nuno Guerreiro __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com