Linus Torvalds <torvalds@xxxxxxxx> writes: > And the "fully packed" part is probably the most important part. A packed > Linux historic tree takes just under six seconds cold-cache and under two > seconds hot-cache, but that's because pack-files are _really_ good at > mapping all the commits in just one go, and at the beginning of the > pack-file. > > But try the same thing with a fully unpacked kernel, and you'll see the > real pain of having to traverse all of history. We're talking minutes, > even when hot in the cache. Just a random thought... Does that suggest the general purpose filesystem you would use for "a fully unpacked" case have room for improvements? Would a special purpose filesystem that is designed to host .git/objects/??/ directory help? - 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