On 03/22/18 17:44, Junio C Hamano wrote:
> Wouldn't it be more efficient to avoid doing so one-by-one?  
> That is, wouldn't
> 
> 	rev-list --max-parents=0 --all
> 
> be a bit faster than
> 
> 	for-each-ref |
> 	while read object type refname
> 	do
> 		rev-list --max-parents=0 $refname
> 	done
> 
> I wonder?

Yeah, you're right -- I forgot that we can pass --all. The check takes
30 seconds, which is a lot better than 12 hours. :) It's a bit heavy
still, but msm kernel repos are one of the heaviest outliers, so let me
try to run with this.

Thanks for the suggestion!

Best,
-- 
Konstantin Ryabitsev
Director, IT Infrastructure Security
The Linux Foundation