Hi guys,
it's not the first time I complain about Maven performance, but it seems M3
is heading the right direction. Yet, still not on the 2.0.x level:
======== %< =============
$ MAVEN_OPTS="-Xmx768m -XX:MaxPermSize=128m" mvn-2.0 eclipse:eclipse
Apache Maven 2.0.11
Java version: 1.6.0_20
Java home: /opt/sun-jdk-1.6.0.20/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux" version: "2.6.32-gentoo-r7" arch: "i386" Family: "unix"
<snip>
------------------------------------------------------------------------
[INFO] Total time: 2 minutes 46 seconds
[INFO] Finished at: Tue Apr 27 12:06:49 CEST 2010
[INFO] Final Memory: 362M/573M
------------------------------------------------------------------------
$ MAVEN_OPTS="-Xmx768m -XX:MaxPermSize=128m" mvn-2.2 eclipse:eclipse
Apache Maven 2.2.1 (r801777; 2009-08-06 21:16:01+0200)
Java version: 1.6.0_20
Java home: /opt/sun-jdk-1.6.0.20/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux" version: "2.6.32-gentoo-r7" arch: "i386" Family: "unix"
<snip>
------------------------------------------------------------------------
[INFO] Total time: 6 minutes 46 seconds
[INFO] Finished at: Tue Apr 27 11:31:13 CEST 2010
[INFO] Final Memory: 434M/682M
------------------------------------------------------------------------
$ MAVEN_OPTS="-Xmx768m -XX:MaxPermSize=128m" mvn-3.0 eclipse:eclipse
Apache Maven 3.0-beta-1 (r935667; 2010-04-19 19:00:39+0200)
Java version: 1.6.0_20
Java home: /opt/sun-jdk-1.6.0.20/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux" version: "2.6.32-gentoo-r7" arch: "i386" Family: "unix"
<snip>
------------------------------------------------------------------------
[INFO] Total time: 4:02.127s
[INFO] Finished at: Tue Apr 27 12:02:12 CEST 2010
[INFO] Final Memory: 344M/443M
------------------------------------------------------------------------
======== %< =============
The build processes ~400 projects. The version output is somewhat faked
(esp. for M2.0), it's just to give you the details of the environment. M3 is
way better than M2.2, but not (yet ?) at the level of 2.0.11 (and I bet
2.0.9 will be a lot faster again).
Also have a look at the memory footprint. Since M2.2 it is quite no longer
possible for me to build all the stuff at once. M3 looks very promising
here.
- Jörg
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