[fedora-java] Using the natively-built Eclipse compiler

[Thomas Fitzsimmons]

On Wed, 2005-03-09 at 16:32 -0500, Thomas Fitzsimmons wrote:
>On Wed, 2005-03-09 at 22:24 +0100, Ziga Mahkovec wrote:
>>On Wed, 2005-03-09 at 11:38 -0500, Thomas Fitzsimmons wrote:
>>> On Wed, 2005-03-09 at 15:04 +0000, Andrew Haley wrote:
>>> >I see.  Of course, I have no idea why tools.jar is attempting to use
>>> >the gcjlib:// class loader, or why it is so slow when it does.  It
>>> >really should not explicitly use this class loader.
>>> 
>>> I doesn't any more.  We were doing that to avoid having to always add
>>> jdtcore.jar to the classpath.  I also have no idea why it's so slow but
>>> I did notice a significant performance hit when compared to interpreted
>>> mode.
>>> 
>>> Ziga, you can get the sources for java-gcj-compat from
>>> sources.redhat.com:
>>
>>Ah, much better, thanks.  Here are the revised times (BTW, that's a
>>1.5GHz Pentium M):
>>
>>HelloWorld
>>
>>ecj                |  ecj-native         |  jikes
>>-------------------------------------------------------------
>>real    0m1.863s   |  real    0m1.614s   |  real    0m0.067s
>>user    0m1.758s   |  user    0m1.536s   |  user    0m0.050s
>>sys     0m0.103s   |  sys     0m0.076s   |  sys     0m0.012s
>>
>>
>>GNU Classpath (cd lib; make)
>>
>>ecj                |  ecj-native         |  jikes
>>-------------------------------------------------------------
>>real    1m24.539s  |  real    0m24.552s  |  real    0m9.439s
>>user    1m23.157s  |  user    0m23.047s  |  user    0m7.486s
>>sys     0m1.142s   |  sys     0m1.139s   |  sys     0m0.771s
>>
>>
>
>What release of eclipse-ecj are you using?  Just recently we were able
>to build Eclipse with -O2 on x86.  I'm not sure if the new packages have
>hit rawhide yet.
>

They'll be in rawhide tomorrow.  Release 3.1.0_fc-0.M5.12 or
3.1.0_fc-0.M5.13.

Tom