On Tue, Jul 31, 2012 at 06:35:00PM +0000, Bruce Furber wrote: > I never used projects. > If you do not change time stamps on existing files the indexing will be > incremental.
Yepp, but on a per project base. If there are no projects, all files are handled like belonging to one big "virtual" repo. > I suspect it would require more memory because the single index is larger At least in theory it should use less memory, because with a single repo there is only one thread, which combs the source root for new files to index ... See [1] > but I doubt it would run longer. Depends on the indexing machine[s]. If it is a single core, it should be slightly faster (less I/O contention, thread switching overhead). If one uses several cores or/and machines, it should be much faster because several projects are indexed concurrently (per default 2 * (cores+1)) - see [2], [3]. However, this of course depends on the amount changed as well as IOPs of your storage provides. If all projects are on the same disk, spinning rust may limit the speedup. If on several disks, one may try to circumvent I/O bottlenecks by explicitly specifying the project pathes @CLI (and thus the execution order to a certain degree) - see [4], [5]. IMHO it doesn't make sense to implement automagically filesystem based thread exec as long as Java 1.6 compatibility is required. With 1.7 it should be easy ... Have fun, jel. [1] http://src.iws.cs.ovgu.de/source/xref/opengrok-jel/src/org/opensolaris/opengrok/index/IndexDatabase.java#792 [2] http://src.iws.cs.ovgu.de/source/xref/opengrok-jel/src/org/opensolaris/opengrok/index/Indexer.java#745 [3] http://src.iws.cs.ovgu.de/source/xref/opengrok-jel/src/org/opensolaris/opengrok/index/IndexDatabase.java#137 [4] http://src.iws.cs.ovgu.de/source/xref/opengrok-jel/src/org/opensolaris/opengrok/index/Indexer.java#454 [5] http://src.iws.cs.ovgu.de/source/xref/opengrok-jel/src/org/opensolaris/opengrok/index/Indexer.java#777 -- Otto-von-Guericke University http://www.cs.uni-magdeburg.de/ Department of Computer Science Geb. 29 R 027, Universitaetsplatz 2 39106 Magdeburg, Germany Tel: +49 391 67 12768 _______________________________________________ opengrok-discuss mailing list opengrok-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opengrok-discuss
