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Message-ID: <dc45dc9c8af1f1a2073de5c49283ba3cf3a0a2f0.camel@perches.com>
Date: Fri, 19 Jul 2019 07:31:16 -0700
From: Joe Perches <joe@...ches.com>
To: "Duda, Sebastian" <sebastian.duda@....de>
Cc: linux-kernel@...r.kernel.org, lukas.bulwahn@...il.com,
ralf.ramsauer@...-regensburg.de, wolfgang.mauerer@...-regensburg.de
Subject: Re: get_maintainers.pl subsystem output
On Fri, 2019-07-19 at 09:54 +0000, Duda, Sebastian wrote:
> On 2019-07-19 08:50, Joe Perches wrote:
> > > My Questions are:
> > > 1. How can I make get_maintainer's output to be more table-like?
> >
> > I suggest adding --nogit --nogit-fallback --roles --norolestats
>
> Unfortunately, this doesn't change the output:
> $ scripts/get_maintainer.pl --subsystem --status --separator ,
> drivers/media/i2c/adv748x/
> Kieran Bingham <kieran.bingham@...asonboard.com> (maintainer:ANALOG
> DEVICES INC ADV748X DRIVER),Mauro Carvalho Chehab <mchehab@...nel.org>
> (maintainer:MEDIA INPUT INFRASTRUCTURE
> (V4L/DVB)),linux-media@...r.kernel.org (open list:ANALOG DEVICES INC
> ADV748X DRIVER),linux-kernel@...r.kernel.org (open list)
> Maintained,Buried alive in reporters
> ANALOG DEVICES INC ADV748X DRIVER,MEDIA INPUT INFRASTRUCTURE
> (V4L/DVB),THE REST
It does change the output for files that do not
have a specific maintainer.
> > > 2. How can I make get_maintainer.pl to separate each file's output?
> >
> > Run the script with multiple invocations. once for each file
> > modified by the patch.
>
> This is the way I'm doing it right now but this is very slow. I thought
> calling the script only once for many files could speed up the analysis.
get_maintainer is effectively single threaded.
Averaging 10 runs:
A single file run time is ~0.135 seconds on my system.
An invocation with two files on the command line has
a run time of ~0.195 seconds.
Using something like gnu parallel would allow multiple
instances to run simulateously and would significantly
reduce overall wall-clock runtime on most systems.
https://www.gnu.org/software/parallel/
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