I tried a few more things, with the following results: * On windows, Ant 1.8 runs the tests slower regardless of JDK version (among 1.5.0_11, 1.6.0_17, and 1.6.0_21).
* If I copy ant-junit.jar to the project directory and add it to the classpath, nothing changes. The tests still run slower in 1.8. * Like you, I also couldn't reproduce the problem under linux. Laura >> On Fri, Jul 23, 2010 at 1:10 AM, Stefan Bodewig <bode...@apache.org> wrote: >>> >>> On 2010-07-22, Laura Dean wrote: >>> >>> > My team has a unit test suite that ran in about a minute and a half >>> > with ant 1.6.5 (and 1.7.1), but now takes over 4 minutes with ant >>> > 1.8.1 (or 1.8.0). Has anyone else had this problem? The closest I've >>> > found via google is here, but it doesn't shed much light on the >>> > subject: >>> >>> > http://netbeans.org/bugzilla/show_bug.cgi?id=182263 >>> >>> Ant 1.8.0 changed some parts of the process execution logic to adapt to >>> problems with hanging grandchild processes on Windows. This changes >>> have a side-effect (which we cannot seem to avoid) that causes any >>> forked process to use up at least about half a second. With 1.8.1 the >>> same logic changes have been applied to other OSes as well. >>> >>> So if you build process was forking a lot of small processes, a major >>> slowdown is to be expected. >>> >>> > We're running junit with fork=yes and forkmode=once. >>> >>> forkmode="once" should just create a single new process and you'd only >>> be paying the overhead once - not for each test. This is the first >>> thing I'd look into, makesure there really only is a single VM forked. >>> >>> > For the curious, I've created a simplified project here: >>> > http://web.mit.edu/lgdean/Public/test-project.zip . >>> >>> I'll look into it. >>> >>> Stefan >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: user-unsubscr...@ant.apache.org >>> For additional commands, e-mail: user-h...@ant.apache.org >>> >> >> > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@ant.apache.org For additional commands, e-mail: user-h...@ant.apache.org
