Building tiered compiler

Rouhollah Gougol rouhollah.gougol at
Thu Nov 6 16:17:24 PST 2008


I am trying to test Tiered compilation on build 36. I build hotspot using 
make all
I assume it should build tired compilers too. Here When I try it, it shows me it is still in either client or server mode: What am I doing wrong?
[rgougol at localhost bin]$ ./java -XX:+TieredCompilation -version
VM option '+TieredCompilation'
openjdk version "1.7.0-internal-fastdebug"
OpenJDK Runtime Environment (build 1.7.0-internal-fastdebug-rgougol_2008_11_05_19_37-b00)
OpenJDK Client VM (build 14.0-b05-fastdebug, mixed mode)

Second the above build is in the folder "linux-i586" . I think it should not the fastdebug build since I already have another build folder of "linux-i586-fastdebug" . Why is like that?

Third, in addition to a development build, I also want to make a product version that is fast a real JRE . I already benchmarked that the "make all" build is significantly slower than the "pre-built" JDK 7.


R. Gougol
CS Graduate Student
San Jose Sate University
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