I had 950% CPU usage on my 6 core + HT machine here the other day. Kristian
2015-01-10 14:42 GMT+01:00 Kristian Rosenvold <kristian.rosenv...@gmail.com>: > It's faster; a lot faster - and it scales beautifully. But then > again you probably need "war/ear/zip" heavy builds to really get max > effect. The average "jar" plugin does not usually consume that large a > percentage the average build. > > I'll try to make some nice graphs and a blog post some time this weekend. > > It's a new api in commons-compress, the existing api did translate > well to multithreading. You can look at plexus-archiver changes if you > want to see how it's used. I've also written some docs in > commons-compress itself. > > K > > > 2015-01-10 14:34 GMT+01:00 Jason van Zyl <ja...@takari.io>: >> Do you have any metrics? I use compress-compress directly so I can certainly >> try it on some large archives. Anything special need to be done? Or do the >> same code paths still work they just use the cores available with the new >> version? >> >> On Jan 10, 2015, at 7:23 AM, Kristian Rosenvold >> <kristian.rosenv...@gmail.com> wrote: >> >>> I just released plexus-archiver version 2.10-beta-1 to maven central. >>> >>> This is a "technology preview" of the multithreaded Zip feature I have >>> been adding to commons-compress for the last few weeks, and will >>> basically use all available CPU cores when compressing the archive. >>> >>> To test/use this feature, you can add the following clause some plugins: >>> >>> <plugin> >>> <groupId>org.apache.maven.plugins</groupId> >>> <artifactId>maven-assembly-plugin</artifactId> >>> <version>2.5.3</version> >>> <dependencies> >>> <dependency> >>> <groupId>org.codehaus.plexus</groupId> >>> <artifactId>plexus-archiver</artifactId> >>> <version>2.10-beta-1</version> >>> </dependency> >>> <dependency> >>> <groupId>org.codehaus.plexus</groupId> >>> <artifactId>plexus-io</artifactId> >>> <version>2.4.1</version> >>> </dependency> >>> </dependencies> >>> </plugin> >>> >>> This applies to maven-war-plugin, maven-jar-plugin, maven-ear-plugin, >>> maven-assembly-plugin, maven-dependency-plugin and probably a few >>> others too. >>> >>> The feature is basically "done". commons-compress 1.10 has not yet >>> been released, and the moment this happens there will be a non-beta >>> version of plexus-archiver. This version contains a shaded-snapshot >>> version of commons-compress. >>> >>> Please note that if your project basically produces a 30K jar file, >>> there is not much to be expected from this upgrade. The larger your >>> zip/jar/ear/war files, the more you can expect. And, of course, you >>> can use this as an argument towards your boss to get a 6 core CPU. >>> >>> Feedback appreciated ! >>> >>> In other news, the java 1.6 version "3.0" was also released today, >>> which contains "snappy" compression. 3.0 does not yet contain the >>> parallel feature. >>> >>> >>> Kristian >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org >>> For additional commands, e-mail: dev-h...@maven.apache.org >>> >> >> Thanks, >> >> Jason >> >> ---------------------------------------------------------- >> Jason van Zyl >> Founder, Apache Maven >> http://twitter.com/jvanzyl >> http://twitter.com/takari_io >> --------------------------------------------------------- >> >> >> >> >> >> >> >> >> >> --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@maven.apache.org For additional commands, e-mail: dev-h...@maven.apache.org
