From: Jeff King <[EMAIL PROTECTED]> Date: Thu, 6 Dec 2007 12:39:47 -0500
> I tried the threaded repack with pack.threads = 3 on a dual-processor > machine, and got: > > time git repack -a -d -f --window=250 --depth=250 > > real 309m59.849s > user 377m43.948s > sys 8m23.319s > > -r--r--r-- 1 peff peff 28570088 2007-12-06 10:11 > pack-1fa336f33126d762988ed6fc3f44ecbe0209da3c.idx > -r--r--r-- 1 peff peff 339922573 2007-12-06 10:11 > pack-1fa336f33126d762988ed6fc3f44ecbe0209da3c.pack > > So it is about 5% bigger. What is really disappointing is that we saved > only about 20% of the time. I didn't sit around watching the stages, but > my guess is that we spent a long time in the single threaded "writing > objects" stage with a thrashing delta cache. If someone can give me a good way to run this test case I can have my 64-cpu Niagara-2 box crunch on this and see how fast it goes and how much larger the resulting pack file is.
