Re: GIT and CVS

Eli Zaretskii
2011-10-14T10:31:28Z

> Date: Fri, 14 Oct 2011 00:24:41 +0200
> From: Jan Kratochvil <jan.kratochvil@redhat.com>
> Cc: ams@gnu.org, pmuldoon@redhat.com, joseph@codesourcery.com,
> gdb@sourceware.org
>
> On Fri, 14 Oct 2011 00:08:35 +0200, Eli Zaretskii wrote:
> > ??? When did you last use "git annotate"? and on what project?
>
> Depending on what I do sometimes ~10x a day during complicated GDB backports.
>
>
> > That command is notoriously slow in git. E.g., it takes a whopping 4.5
> > minutes to run on a particularly large and history-rich file in the Emacs
> > repository.
>
> The most expensive source file in GDB looks to be dwarf2read.c: 0m8.930s

On fencepost.gnu.org, I get 18 to 20 seconds on that file.

I guess this also depends on the number of revision that the project
has. GDB has 36544 (if my git command was correct ;-); Emacs has
106K. And the file I was talking about, xdisp.c, has 1592 revisions
in its history, not 573 as dwarf2read.c.

So this problem is probably still in GDB's future. But it is real
nonetheless.