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

[Stephen Rothwell <sfr@canb.auug.org.au>]

[-- Attachment #1: Type: text/plain, Size: 4444 bytes --]

On Fri, 22 Nov 2013 12:36:37 -0800 Linus Torvalds <torvalds@linux-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@redhat.com>
     63 Takashi Iwai <tiwai@suse.de>
     63 Al Viro <viro@zeniv.linux.org.uk>
     46 Alex Deucher <alexander.deucher@amd.com>
     39 Ben Widawsky <benjamin.widawsky@intel.com>
     33 Josef Bacik <jbacik@fusionio.com>
     31 Johannes Berg <johannes.berg@intel.com>
     29 J. Bruce Fields <bfields@redhat.com>
     29 Dan Carpenter <dan.carpenter@oracle.com>
     27 Peter Zijlstra <peterz@infradead.org>

Top ten commiters:

    195 David S. Miller <davem@davemloft.net>
    117 Chris Mason <chris.mason@fusionio.com>
     95 Daniel Vetter <daniel.vetter@ffwll.ch>
     94 Al Viro <viro@zeniv.linux.org.uk>
     86 Ben Skeggs <bskeggs@redhat.com>
     82 Arnaldo Carvalho de Melo <acme@redhat.com>
     74 Alex Deucher <alexander.deucher@amd.com>
     69 Takashi Iwai <tiwai@suse.de>
     53 Dave Airlie <airlied@redhat.com>
     52 Mark Brown <broonie@linaro.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@daterainc.com>
     22 Dave Kleikamp <dave.kleikamp@oracle.com>
     19 Andrew Morton <akpm@linux-foundation.org>
      9 Zach Brown <zab@zabbo.net>
      9 Denis Carikli <denis@eukrea.com>
      8 Geyslan G. Bem <geyslan@gmail.com>
      7 Sachin Kamat <sachin.kamat@linaro.org>
      7 Kees Cook <keescook@chromium.org>
      7 Alex Porosanu <alexandru.porosanu@freescale.com>
      6 Yan, Zheng <zheng.z.yan@intel.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@canb.auug.org.au>
     48 Herbert Xu <herbert@gondor.apana.org.au>
     33 Dave Kleikamp <dave.kleikamp@oracle.com>
     30 Jens Axboe <axboe@kernel.dk>
     27 Shawn Guo <shawn.guo@linaro.org>
     17 Kukjin Kim <kgene.kim@samsung.com>
     11 Mauro Carvalho Chehab <m.chehab@samsung.com>
     10 Jason Wessel <jason.wessel@windriver.com>
      9 Sage Weil <sage@inktank.com>
      9 Eric Van Hensbergen <ericvh@gmail.com>

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

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

[-- Attachment #2: Type: application/pgp-signature, Size: 836 bytes --]