How to inspect hotspot compiler results? hsdis binaries for Windows?

Ulf Zibis Ulf.Zibis at
Thu Nov 19 17:46:21 PST 2009

-XX:+PrintCompilation gave me usefull hint:
Decoder is inner class of sun.nio.cs.ext.EUC_TW_C_d_b_codeToBuffer4, so 
I tried:

Wow, it works.
Very much thanks for your help


P.S.: Is there any documentation, how to read the special 
key-letters/words, printed from CompileCommand?

Am 20.11.2009 00:43, Vladimir Kozlov schrieb:
>> -Xcomp
>> What is this ? There is no docu on 
>> jdk1.7.0/docs/technotes/tools/windows/java.html
> We use it for stress testing out JIT compiler when all called methods
> are immediately compiled without reaching threshold.
> Note: the program execution will be very slow and generated code
> for compiled methods could be very different from normal execution
> since no profiling information is collected for executed bytecode.

Can this option be specified for single methods ?


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