Why HornetQ use JNI for libaio for file I/O only

[escort]

Dear all,

As you may know, HornetQ uses JNI implemention for libaio as part of journal I/O operations. The relevent information could be found in the following links

http://hornetq.sourceforge.net/docs/hornetq-2.0.0.BETA5/user-manual/en/html/libaio.html

http://hornetq.sourceforge.net/docs/hornetq-2.0.0.BETA5/user-manual/en/html/persistence.html

After examing the source code, I am courious, since HornetQ has already implemented the JNI for libasio, why it does not implement the socket I/O at the same time.

http://lse.sourceforge.net/io/aio.html

According to most of the articles, the socket I/O from C++ is faster than Java NIO. Could any one explain the reason that HornetQ only uses JNI for File I/O but not socket I/O.

Thanks a lot.

Best regards

[clebert.suconic]

you should probably look at 2.2.5 docs anyway

BTW: This project here: http://lse.sourceforge.net/io/aio.html

isn't the same thing as libaio.

libaio is a kernel project, and I don't think there's a specific libaio project. You will just find information about the kernel itself.

Which we have implemented a JNI library for libaio.

Netty is really fast about managing sockets, and the JDK should be using native functions properly underneath it. We may implement additional options in a near future for faster performance.

[clebert.suconic]

BTW: you used the wrong forum. You should be using the hornetq's user's forum. which I will move your message there.