[kaffe] Version Up causes Lateness of a Class Loader ?

takahiro tokui t_tokui at kyototechnica.co.jp
Tue Nov 16 22:13:55 PST 2004


Hi everyone.

I hava a question.

I already use kaffe-1.0.7 & kaffe-1.1.4 (on x86-linux & sh4-linux)
I tried to connect OracleDB with JDBC driver on each version & platform
Time is as follow:
    Ver  :   1.0.7   :   1.1.4
    SH4  :   2000 ms :   5000 ms
    X86  :    800 ms :   1100 ms

Why is there any difference to call same JDBC driver ?

I tried two experiment based on my assumption as below:
  1. java.sql.* package on 1.1.4 have a problem.
      I implement java.sql.* package on 1.1.x into rt.jar on 1.1.4.
      & same program run.
      but result is same.

  2. java.sql.* package on 1.1.4 is very heavier than on 1.0.7
      I implement java.sql.* package on 1.1.7 into rt.jar on 1.1.4.
      & same program run.
      but result is same.

I think that the difference of class loading process between 1.1.4 & 1.0.7
causes this lateness. 

Is this correct? and what approach is there in avoiding?

Please help me!

regards

takahiro tokui





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