Just an idea - should be collect such buildfiles for performance tests? Jan
>-----Ursprüngliche Nachricht----- >Von: Dominique Devienne [mailto:[EMAIL PROTECTED] >Gesendet: Donnerstag, 23. Juni 2005 17:25 >An: 'Ant Users List' >Betreff: RE: Performance difference between 1.6.1 and 1.6.4 >(in eclipse) > >> From: Pollähne. Ullrich [mailto:[EMAIL PROTECTED] The script >> contains a main target that simply calls the others with antcall >> (since it is simpler to edit than editing the depends attribute). >> >> Doing it this way: >> <antcall target="removeOldArtifacts" /> >... >> >> <!-- refresh the eclipse workspace if inside eclipse --> >> <antcall target="refreshWorkspace"/> takes 32 >seconds (31 with >> a fixed heap of 80MB) with ANT 1.6.5. >> >> Doing it this way: >> <antcall> >> <target name="removeOldArtifacts" /> >... >> >> <!-- refresh the eclipse workspace if inside eclipse --> >> <target name="refreshWorkspace"/> >> </antcall> >> just takes 12 seconds (with a fixed heap of 80MB) with ANT 1.6.5. >> And this is nearly the same speed as with ANT 1.6.2. >> So it seems that the dependency checking is slowing down the script. >> >> The above targets do define some properties and then call >the get task >> (indirectly, they call a presetdef). They do not define any >> dependency, just plain '<target name="getBIS6ModulesArtifacts">'. > >That's interesting. What you are saying is that <antcall> is >expensive because it creates a new project, which is known Ant >wisdom ;-) Using the new ability to call several targets in a >single <antcall> allows you to create a single Project instead >of many, and is thus faster. > >What I think is more interesting though, is the possible slow >down of <antcall> between Ant 1.6.2 and 1.6.5. If <antcall> >was somehow made 2+ times slower, that's not good. > >Would you mind sending the output of the performance listener >for the same script (with heavy <antcall>) on both versions of Ant? > >Could be it's the <get> task that's slower rather than ><antcall> for example. Thanks, --DD > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] For >additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
