linux-kernel - Re: Re: linus-next: improving functional testing for to-be-merged pull requests

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Message-ID: <ZyipewUEwqrQ-z9b@sashalap>
Date: Mon, 4 Nov 2024 06:01:15 -0500
From: Sasha Levin <sashal@...nel.org>
To: Joel Granados <joel.granados@...nel.org>
Cc: Christoph Hellwig <hch@...radead.org>, Kees Cook <kees@...nel.org>,
	torvalds@...ux-foundation.org, ksummit@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: Re: Re: linus-next: improving functional testing for to-be-merged
 pull requests

On Mon, Nov 04, 2024 at 09:49:15AM +0100, Joel Granados wrote:
>On Mon, Oct 28, 2024 at 06:46:19PM -0400, Sasha Levin wrote:
>> On Mon, Oct 21, 2024 at 11:48:34PM -0700, Christoph Hellwig wrote:
>> >On Mon, Oct 21, 2024 at 09:54:53PM -0700, Kees Cook wrote:
>> >> For example, for a given PR, the bot can report:
>> >>
>> >> - Were the patches CCed to a mailing list?
>> >> - A histogram of how long the patches were in next (to show bake times)
>> >> - Are any patches associated with test failures? (0day and many other
>> >> CIs are already running tests against -next; parse those reports)
>> >>
>> >> We could have a real pre-submit checker! :)
>> >
>> >That would be very useful.  Items 1 and 2 should be trivial, 3 would
>> >require a bit of work but would still be very useful.
>>
>> If you've been following so far, there is a bot that is capable of doing
>> most of the above
>> (https://git.kernel.org/pub/scm/linux/kernel/git/sashal/next-analysis.git/).
>>
>> Here's a histogram that describes v6.12-rc4..v6.12-rc5 as far as how
>> long commits spent in -next:
>>
>> Days in linux-next:
>> ----------------------------------------
>>   0 | +++++++++++++++++++++++++++++++++++++++++++++++++ (89)
>> <1 | +++++++++++ (21)
>>   1 | +++++++++++ (21)
>>   2 | +++++++++++++++++++++++++ (45)
>>   3 | ++++++++++++++ (25)
>>   4 | +++++ (10)
>>   5 |
>>   6 | + (2)
>>   7 |
>>   8 | + (3)
>>   9 | ++ (4)
>> 10 |
>> 11 | +++ (6)
>> 12 |
>> 13 |
>> 14+| ++++++++ (15)
>This looks super nice. Sometimes I need to answer how long a
>commit/series has been in next to either take it out of the PR or to at
>least have a comment to Linus.
>I see that I can use the script like `histo.sh /PATH/TO/DB COMMIT-ID`,
>which is exactly what I would expect.

Thanks!

>Is the idea to run the scripts from
>https://git.kernel.org/pub/scm/linux/kernel/git/sashal/next-analysis.git
>or to populate ones own DB in linux-next and then run histo?

You can use the DB in the git repo, but prep.sh is provided in case you
want to create your own or if I stop updating the repo for some reason.

-- 
Thanks,
Sasha