Mladen Turk wrote:
Jeanfrancois Arcand wrote:
I've done some serious testings with HTTP server and NIO. The results were always bad for NIO. Blocking I/O is minimum 25% faster then NIO.
Faster in what? Throughput and/or scalability?
I disagree ;-) I would like to see your implementation, because from what I'm seeing/measuring, it is completely the inverse. I would be interested to see how you did implement your NIO connector.
I do not understand why the people are so obsessed with NIO, really.
I'm not obsessed. I just want to see a reel Tomcat implementation before saying I'm obsessed :-). APR looks really promising, but only because I can benchmark it and see real number :-)
Like said there IS a example from Sun that tries all the strategies you can imagine, even using mapped byte buffers, single/multiple threads etc...
Feel free to test by yourself if you don't believe me. Download the Mustang sources from http://www.java.net/download/jdk6/ You have a complete stack of 5 web servers inside: j2se/src/share/sample/nio/server
Yes I already saw that. I'm really not interested about it....
Also read a nice aricle:
http://www.usenix.org/events/hotos03/tech/full_papers/vonbehren/vonbehren_html/index.html
Solaris and Linux 2.6 threading support is much more advanced then it was in a days the even architecture was 'pushed'.
Right :-) Still I will compare a pure NIO non blocking implementation in Tomcat vs what we have right now, to have a clear picture. I'm just unable to assume the reality without seeing it :-)
Thanks
-- Jeanfrancois
Regards, Mladen.
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