Re: sync() slowdown

[Matthieu Moy <Matthieu.Moy@imag.fr>]

Sebastien Gross <seb-git@chezwam.org> writes:

> I think this might be useful if you repack many repositories.
> If you call the sync command before looping the repacks I guess this
> could be equivalent (modulo changes done in repositories during that
> time).

I suppose git-repack does something like

write_new_data();
sync();
delete_old_data();

And if you remove the "sync" and your system crashes (or you eject
your USB key, or ...) while "delete_old_data" is done, but
"write_new_data" hasn't been sync-ed to the hard disk, you're in
trouble.

If you repack many repositories, I guess the first time is expansive,
but the next ones pay only for what they just did.

My 2 cents,

-- 
Matthieu