2.0.0M6 + 2.0.0RC1: Win7 performance issue
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Key: DIRMINA-790
URL: https://issues.apache.org/jira/browse/DIRMINA-790
Project: MINA
Issue Type: Bug
Affects Versions: 2.0.0-RC1, 2.0.0-M6
Environment: WinXP SP3 with disabled Firewall + Virusscanner, Win7
64bit with disabled Virusscanner and Firewall, Win7 32bit with absolutely no
virusscanner and with disabled firewall, all Systems with 32bit JRE6U20
Ubuntu Linux 64bit mit JRE6U20 64bit
Reporter: Alex C.
Priority: Blocker
Attachments: MINASocketTransfer.zip
Hi there,
I've written a kind of RMI replacement uses MINA for network communication
layer that is also able to transfer files very fast (without reflection and
complex serialisation stuff). One of my customers faced a performance problem
as soon as the receiving application part is running in Win7.
I tried to create an reproducer:
First I wrote a small test application using Java IO that simply transfers
1.000.000 bytes of random data from a client to a server. That's very fast. It
doesn't matter if I try on localhost, or from WinXP->Win7 oder Win7->WinXP.
Even Linux->Win7 is fast.
Then I wrote the same kind of application with mina. No additional codec,
nothing complex. I just transfer 100 IoBuffers with 10.000 bytes each from A to
B.
If I run the application on WinXP via localhost, it's very fast. <1sec runtime.
If I run client and server in Win7, it's f*cking slow. Takes >1min to complete.
Please find attached the test application.
Just extract and run:
java -cp MINASocketTransfer.jar;./lib/* minasockettransfer.Client <IP or
Hostname of Server>
java -cp MINASocketTransfer.jar;./lib/* minasockettransfer.Server
The lib folder contains 2.0.0M6 and 2.0.0RC1. To switch from the one to the
other version, simple "move" the tailing "_" to exclude the specified lib from
classpath.
Java-Source files are included in the MINASocketTransfer.jar ...
I tested it with 2.0.0M6 and 2.0.0RC1. It's reproducible with both versions.
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