klinkert@xxxxxxxxxx venit, vidit, dixit 11.10.2011 11:32: > Git performs for every file in a repository at least one (with a cold cache) > lstat(). In larger repositories operations like git status take a > long time. In case your local repository is located on a remote server > (e. g. mounted via nfs) it ends up in an *incredible* slow git. > > With this patch you're able to determine a number of threads (maxthreads) > in your config file to run these tons of lstats in threads. There > won't be created any pthreads if you haven't set maxthreads. In my > test cases a git status with this patch performs enormously faster (over > two minutes before and approximately 25 seconds now). Of course, it > has a positive impact on other git commands, too. Can you specify under which circumstances one should get a speedup? Our NFS isn't slow enough... but on a dead slow sshfs work tree I get the following for "git status -s": maxthreads: 0, preloadindex: false, time: 14.73 maxthreads: 1, preloadindex: false, time: 14.25 maxthreads: 2, preloadindex: false, time: 13.32 maxthreads: 3, preloadindex: false, time: 12.40 maxthreads: 4, preloadindex: false, time: 12.65 maxthreads: 5, preloadindex: false, time: 12.16 maxthreads: 8, preloadindex: false, time: 12.32 maxthreads: 10, preloadindex: false, time: 11.98 maxthreads: 15, preloadindex: false, time: 12.31 maxthreads: 20, preloadindex: false, time: 12.00 maxthreads: 0, preloadindex: true, time: 12.17 maxthreads: 1, preloadindex: true, time: 11.98 maxthreads: 2, preloadindex: true, time: 12.21 maxthreads: 3, preloadindex: true, time: 11.99 maxthreads: 4, preloadindex: true, time: 12.14 maxthreads: 5, preloadindex: true, time: 12.21 maxthreads: 8, preloadindex: true, time: 12.14 maxthreads: 10, preloadindex: true, time: 12.08 maxthreads: 15, preloadindex: true, time: 12.16 maxthreads: 20, preloadindex: true, time: 11.96 So it seams it gives me what preloadindex does, which is not much. Note: I'm not saying the patch is bad. I'm just wondering whether that is expected. Michael P.S.: It's actually sshfs with ssh to an NFSv3 client (server restricts exports) :( -- 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