[Ksummit-2012-discuss] [ATTEND] linux-next and process

Stephen Rothwell sfr at canb.auug.org.au
Tue Jun 19 03:47:59 UTC 2012


Hi all,

On Mon, 18 Jun 2012 19:14:09 -0700 Brian Norris <computersforpeace at gmail.com> wrote:
>
> > Someone published statistics a couple of months ago - I think it was for 3.2 or
> > 3.3. My memory may be wrong, but at as far as I recall the percentage of commits
> > in the commit window which did not go through -next was quite high, something
> > in the range of 20 or even 30%.
> 
> How does something qualify as "in -next"? Residing for a certain time
> period, with the same commit ID? If so, then some stats might be
> misleading, as I know a submaintainer whose tree is in -next but is
> constantly rebased and tweaked as development progresses and bugs are
> fixed. Eventually, these commits make it into mainline, but their
> commit ID may or may not have been present in -next simply because of
> rebasing.

OK, I forgot to publish the stats for v3.5-rc1, but here they are:

(No merge commits counted, next-20120521 is the first linux-next after
v3.4, script attached, I ran "do_stats v3.4 next-20120521 v3.5-rc1")

Commits in v3.5-rc1 (relative to v3.4): 9534
Commits in next-20120521:		9899
Commits with the same SHA1:		7669
Commits with the same patch_id:		 521	(1)
Commits with the same subject line:	  66	(1)

(1) not counting those in the lines above.

So commits in -rc1 that were "in" next-20120521:	8256	86.6%
Commits in -rc1 that were not in next-20120521:		1278	13.4%

Again, not too bad, but it would be nice to figure out where the last lot
came from.  I have the "git log --oneline" list if someone wants them.

Some break down of the onlines list:
	grep for btrfs gives 58 commits
	         vfs gives 29
	         nfs gives 62
	         backlight gives 28

I don't expect anyone to react to these numbers ...

Just out of interest, the same stats for next-20120514 (i.e. one week
before v3.4 was released):

Commits in v3.5-rc1 (relative to v3.4): 9534
Commits in next-20120514:		7906
Commits with the same SHA1:		5595
Commits with the same patch_id:		 687
Commits with the same subject line:	  85

So commits in -rc1 that were "in" next-20120514:	6367	66.7%
Commits in -rc1 that were not in next-20120514:		3167	33.3%
 
-- 
Cheers,
Stephen Rothwell                    sfr at canb.auug.org.au
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