[kaffe] java.util.date problem (on SH4 & X86)
t_tokui at kyototechnica.co.jp
Thu Nov 11 21:40:15 PST 2004
We tried to build kaffe-1.1.4 for SH4/linux,and It seems to
have succeeded in build.
But There is one problem.
It was too late when java.util.date() method was called in a program.
So,I thought first that build on SH4 went wrong.
I build kaffe-1.1.4 on X86/linux to run that same program
in order to compare with sh4 and X86.
The obtained result is as follows.
X86:Pentium3 800 256M on IDE-HDD
Kernel 2.4.18-3 on an i686
SH4:SH7751R(SH4) 64M on CompactFlash
Kernel 2.4.18-4 on SH4
part of program source:
long start = System.currentTimeMillis();
long end = System.currentTimeMillis();
System.out.println("time = " + (end - start));
Ver : 1.0.7 : 1.1.4
SH4 : 1200ms to 30ms : 2800ms to 2000ms
X86 : 290ms to 1ms : 200ms to 100ms
left time is first call to make instance (include class loading)
right time is second call to make instance (without class loading)
>From this result, I judged that it was not an SH4 independent problem.
And noticed that there is a difference between 1.0.7 and 1.1.4.
println result(both SH4,X86):
1.0.7 Fri Nov 12 13:53:31 JST 2004
1.1.4 Fri Nov 12 14:02:44 GMT+9:00 2004
Could anyone give me any idea to solve?
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