Junio C Hamano <gitster@xxxxxxxxx> writes: > Nicolas Pitre <nico@xxxxxxx> writes: > >> On Fri, 7 Dec 2007, Jon Smirl wrote: >> >>> Starting with a 2GB pack of the same data my process size only grew to >>> 3GB with 2GB of mmaps. >> >> Which is quite reasonable, even if the same issue might still be there. >> >> So the problem seems to be related to the pack access code and not the >> repack code. And it must have something to do with the number of deltas >> being replayed. And because the repack is attempting delta compression >> roughly from newest to oldest, and because old objects are typically in >> a deeper delta chain, then this might explain the logarithmic slowdown. >> >> So something must be wrong with the delta cache in sha1_file.c somehow. > > I was reaching the same conclusion but haven't managed to spot anything > blatantly wrong in that area. Will need to dig more. Does this problem have correlation with the use of threads? Do you see the same bloat with or without THREADED_DELTA_SEARCH defined? - To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
