Gcj binaries performance (arm-linux)
Andrew John Hughes
gnu_andrew@member.fsf.org
Fri May 9 08:30:00 GMT 2008
2008年4月29日 ffileppo <ffileppo@libero.it>:
>> >
> > aph@debian:~$ /home/aph/gcc-4.3.0-RC-20080301-install/bin/gcj MyPanel.class -O --main=MyPanel
> > aph@debian:~$ ./a.out
> > Test "Bubble Sort" (Num loop: 100)
> > First loop time: 22
> > Total time elapsed: 2197
> >
> > aph@debian:~$ /home/aph/gcc-4.3.0-RC-20080301-install/bin/gcj MyPanel.class -O2 --main=MyPanel
> > aph@debian:~$ ./a.out
> > Test "Bubble Sort" (Num loop: 100)
> > First loop time: 20
> > Total time elapsed: 1943
> >
> > Andrew.
> >
>> Thanks for your help Andrew,
> I'm getting good performance on target using -O / -O2
>> Francesco
>>
So does gcj default to no optimisation? This is what these results
suggest, as the
-O version is about 18 times quicker.
--
Andrew :-)
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