Re: [patch 2/2] Documentation/process: Add tip tree handbook

Theodore Y. Ts'o
2018-11-08T22:20:15Z

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?

Thanks,

- Ted