Messages in this thread | | | Date | Thu, 8 Nov 2018 14:33:29 -0800 | From | Greg KH <> | Subject | Re: [patch 2/2] Documentation/process: Add tip tree handbook |
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On Thu, Nov 08, 2018 at 05:19:47PM -0500, Theodore Y. Ts'o wrote: > On Thu, Nov 08, 2018 at 01:04:49PM -0800, Greg KH wrote: > > > (Also note that even with fast SSD's and/or everything in page cache, > > > runnning "tag --contains <COMMITID>" will take a good 3-4 seconds, and > > > if the git packs are not in the page cache, and/or you're unfortunate > > > enough to have your git trees on an HDD.... it's not pretty.) > > > > I recommend the "static cache" or whatever that thing is called, that > > helps out a _LOT_ with stuff like this. For the kernel tree, which is > > never rebased, it speeds up this so much. > > At the risk of asking a stupid question, which cache is this? I don't > think it's the untrackedCache; is it the BitmapHashCache?
It's the 'commitGraph', here's the article I was trying to remember I learned this from: https://blogs.msdn.microsoft.com/devops/2018/06/25/supercharging-the-git-commit-graph/
greg k-h
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