Johannes Schindelin <Johannes.Schindelin@xxxxxx> wrote: > > 1) Why so much user CPU time? > > See above. Some of the ideas Nico and I have kicked around for a pack v4 (post 1.5.0, obviously) would speed up revision traversal by bypassing some of the costly decompression overheads. > > 2) Why so much system CPU time, but only on MacOS X? > > Probably the mmap() problem. Does it go away when you use git 1.5.0-rc4? What does 1.5.0-rc4 do here that didn't happen before? Are you referring to the mmap sliding window? Because NO_MMAP might be faster on MacOS X then using mmap (thanks to its slower mmap)... but I can't say I have performance tested it either way. -- Shawn. - 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