From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 23 Jul 2008 18:04:07 GMT
Subject: Re: q: faster way to integrate/merge lots of topic branches?
Message-ID: <alpine.LFD.1.10.0807231100310.4754@woody.linux-foundation.org>
In-Reply-To: <20080723140441.GA9537@elte.hu>



Ahh, missed that somebody already suggested it.

On Wed, 23 Jul 2008, Ingo Molnar wrote:
> 
> hm, it's very slow:
> 
>   $ time git branch --no-merged
>   [...]
> 
>   real    0m9.177s
>   user    0m9.027s
>   sys     0m0.129s
> 
> when running it on tip/master:
> 
>   http://people.redhat.com/mingo/tip.git/README

We can probably speed it up, but more importantly, even if we don't, it's 
slow _once_.

It's worth taking a 9s hit, if that means that you can then skip half of 
the merges entirely, and thus win half of the 53s cost. 

But I'll look if there's a way to cut it down from 9s. I suspect it has to 
traverse the whole history to make 100% sure that something isn't merged, 
but even that should be faster than 9s.

		Linus