linux-kernel - linux-next stats (Was: Linux 3.13-rc1 is out)

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Message-Id: <20131125111005.e85b207a474ef992c385c8df@canb.auug.org.au>
Date:	Mon, 25 Nov 2013 11:10:05 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-next@...r.kernel.org
Subject: linux-next stats (Was: Linux 3.13-rc1 is out)

On Fri, 22 Nov 2013 12:36:37 -0800 Linus Torvalds <torvalds@...ux-foundation.org> wrote:
>
> Talking about mistakes... I suspect it was a mistake to have that
> extra week before the merge window opened, and I probably should just
> have done a 3.12-rc8 instead. Because the linux-next statistics look
> suspicious, and we had extra stuff show up there not just in that
> first week. Clearly people took that "let's have an extra week of
> merge window" and extrapolated it a bit too much. Oh, well. Live and
> learn.

As usual, the executive friendly graph is at
http://neuling.org/linux-next-size.html :-)

(No merge commits counted, next-20131105 was the linux-next based on v3.12)

Commits in v3.13-rc1 (relative to v3.12): 10518		(v3.12-rc11:	9474)
Commits in next-20131105:		   9029		(next-20130903:	8891)
Commits with the same SHA1:		   7979		(		7991)
Commits with the same patch_id:		    621	(1)	(		 472)
Commits with the same subject line:	     70	(1)	(		  70)

(1) not counting those in the lines above.

So commits in -rc1 that were in next-20131105:	8670	82.4%	(8533	90.1%)
Commits in -rc1 that were not in next-20131105:	1848	17.6%	( 941	 9.9%)

So worse than last time, probably because of the 1 week delay.

[Aside: if I use next-20131111 as a base (when Linus' starting doing
merges in earnest), the stats look like this:

Commits in next-20131111:		   9906
Commits with the same SHA1:		   9156
Commits with the same patch_id:		    354	(1)
Commits with the same subject line:	     41	(1)

So commits in -rc1 that were in next-20131111:	9551	90.8%
Commits in -rc1 that were not in next-20131105:	 967	 9.2%

So, much more in line with previous releases.
]

Some breakdown of the list of extra commits (relative to next-20131105)
in -rc1:

Top ten first word of commit summary:

    337 drm
    115 btrfs
     83 perf
     68 alsa
     50 asoc
     49 arm
     46 net
     31 powerpc
     27 netfilter
     27 acpi

Top ten authors:

     66 Ben Skeggs <bskeggs@...hat.com>
     63 Takashi Iwai <tiwai@...e.de>
     63 Al Viro <viro@...iv.linux.org.uk>
     46 Alex Deucher <alexander.deucher@....com>
     39 Ben Widawsky <benjamin.widawsky@...el.com>
     33 Josef Bacik <jbacik@...ionio.com>
     31 Johannes Berg <johannes.berg@...el.com>
     29 J. Bruce Fields <bfields@...hat.com>
     29 Dan Carpenter <dan.carpenter@...cle.com>
     27 Peter Zijlstra <peterz@...radead.org>

Top ten commiters:

    195 David S. Miller <davem@...emloft.net>
    117 Chris Mason <chris.mason@...ionio.com>
     95 Daniel Vetter <daniel.vetter@...ll.ch>
     94 Al Viro <viro@...iv.linux.org.uk>
     86 Ben Skeggs <bskeggs@...hat.com>
     82 Arnaldo Carvalho de Melo <acme@...hat.com>
     74 Alex Deucher <alexander.deucher@....com>
     69 Takashi Iwai <tiwai@...e.de>
     53 Dave Airlie <airlied@...hat.com>
     52 Mark Brown <broonie@...aro.org>

There are also 358 commits in next-20131105 that didn't make it into
v3.13-rc1.

Top ten first word of commit summary:

     51 arm
     40 crypto
     21 block
     11 x86
     11 ocfs2
     11 dm
     10 ceph
     10 bluetooth
      9 iov_iter
      9 9p

Top ten authors:

     27 Kent Overstreet <kmo@...erainc.com>
     22 Dave Kleikamp <dave.kleikamp@...cle.com>
     19 Andrew Morton <akpm@...ux-foundation.org>
      9 Zach Brown <zab@...bo.net>
      9 Denis Carikli <denis@...rea.com>
      8 Geyslan G. Bem <geyslan@...il.com>
      7 Sachin Kamat <sachin.kamat@...aro.org>
      7 Kees Cook <keescook@...omium.org>
      7 Alex Porosanu <alexandru.porosanu@...escale.com>
      6 Yan, Zheng <zheng.z.yan@...el.com>

Some of Andrew's patches are fixes for other patches in his tree (and
have been merged into those).

Top ten commiters:

     93 Stephen Rothwell <sfr@...b.auug.org.au>
     48 Herbert Xu <herbert@...dor.apana.org.au>
     33 Dave Kleikamp <dave.kleikamp@...cle.com>
     30 Jens Axboe <axboe@...nel.dk>
     27 Shawn Guo <shawn.guo@...aro.org>
     17 Kukjin Kim <kgene.kim@...sung.com>
     11 Mauro Carvalho Chehab <m.chehab@...sung.com>
     10 Jason Wessel <jason.wessel@...driver.com>
      9 Sage Weil <sage@...tank.com>
      9 Eric Van Hensbergen <ericvh@...il.com>

Those commits by me are from the quilt series (mainly Andrew's mmotm
tree).

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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