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From Steve Suppe <ssu...@llnl.gov>
Subject Re: (one other) Multithreading question
Date Fri, 16 Nov 2007 17:00:15 GMT

Thanks for the help!  I will look into these.


At 12:15 PM 11/13/2007, greg@holmberg.name wrote:

> > Are there other open source tools you recommend besides Ethereal?
>Some other tools that are useful for diagnosing performance issues:
>On Windows:
>     http://www.microsoft.com/technet/sysinternals/utilitiesindex.mspx
>Especially the Process Explorer which can display the I/O usage of a 
>single process in real-time.
>     The Windows Server Performance tool
>On Linux there are various hard-to-use tools that write a bunch of text 
>(sar, var, etc.), but I haven't tried these for several years, so maybe 
>they have nice GUI's now.
>For Java there are several profiling tools.  I've had good luck with 
>JProbe from Quest.  Eclipse also has one (install the TPTP plug-ins), but 
>I found it to either lock up or be difficult to get the data I 
>needed.  And don't forget, these profilers slow down the byte-code 
>execution by about 30X, and so make any I/O look 1/30 smaller in 
>proportion than it actually is in an unprofiled, byte-compiling JVM (i.e. 
>"java -server").

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