It's a pretty specific shootout, of course; the reasons brought up for JGit's relative slowness are not issues present in most applications, they're specific to

It's a pretty specific shootout, of course; the reasons brought up for JGit's relative slowness are not issues present in most applications, they're specific to certain realms of system. Unsigned number support is a major headache about Java when doing low-level work, in particular. I think it's also important to note that the slowness is relative to an incredibly fast C implementation - taking twice the time sounds painful, but in reality the pauses caused by Git are barely perceptible as-is, and double of that is not likely to be very annoying.