On Thu, 14 Jul 2005, Russell King wrote:
>
> cg-update origin
> and then I edited drivers/serial/8250.c
Hmm..
> it appears that cg-diff does a
>
> git-update-cache --refresh >/dev/null
>
> each time it's run, which is taking the bulk of the time. Also note
> that curiously, it exits with status 1.
That part is normal - a update-cache is fast (it takes me 0.08 sec for the
kernel) if the cache is already mostly up-to-date, and the non-zero exit
status just means that some file was different (ie it's telling the caller
that there are edits in your tree - drivers/serial/8250.c).
The update-cache is slow only if the index isn't up-to-date, which can
happen either if somebody plays games with the index, or if somebody
touches all the files in the tree.
It's quite possible that some path in cg-update ends up not updating the
index properly. For example, I notice that the "fast-forward" uses
"git-checkout-cache -f -a", which can do so (lack of "-u" fila), but then
it does do a "git-update-cache --refresh" later, so that doesn't seem to
be it either.
If you do a "git-diff-files" every once in a while, it will _scream_ at
you whenever you have files that aren't up-to-date in the cache. That's
normal in small doses, of course (eg your edit of drivers/serial/8250.c
would make that one not up-to-date), but if you get a _lot_ of files
listed, that's usually a sign that something screwed up your index.
Linus
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