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Some numbers and thoughts on the stable kernels

Some numbers and thoughts on the stable kernels

Posted Aug 27, 2010 21:21 UTC (Fri) by spender (subscriber, #23067)
Parent article: Some numbers and thoughts on the stable kernels

"volunteers are still our leading source of fixes"

Though volunteers beat out any other single company source of fixes, if I'm interpreting the chart correctly for 2.6.32, (100% - 15.3%) = 84.7% are coming from companies.

That said, I can imagine a good amount of the patches being submitted from company email addresses (which is what I assume the stats are generated off of) are done when the employee is "off the clock."

So my question: do we (and how do we) actually know how much of the kernel development is really a volunteer effort?

BTW, I've never seen anyone on this site call Greg a "dickhead" or anything close to it (I did a search to check, feel free to do your own). Some people, myself included, disagree with how security is conveyed and sometimes handled, but it's a gross mischaracterization to equate that with childish ad-hominem attacks that were never uttered.

I appreciate the effort Greg puts into the stable releases -- it's certainly a lot of work. As for the major "enterprise" distributions that benefit from Greg's work, do we know what else they could be doing in addition to contributing fixes to lessen the burden?

-Brad


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Some numbers and thoughts on the stable kernels

Posted Aug 27, 2010 21:42 UTC (Fri) by jspaleta (subscriber, #50639) [Link]

I wouldn't make the assumption about how corporate involvement is ascertained. I believe the author can go into detail as to how that is done if you need it clarified.

-jef

Some numbers and thoughts on the stable kernels

Posted Aug 27, 2010 21:55 UTC (Fri) by drag (subscriber, #31333) [Link]

The amount of contributions, by lines of code or by patches, does not translate directly to bug fixes. Most of them are probably features and drivers.

Some numbers and thoughts on the stable kernels

Posted Aug 27, 2010 21:59 UTC (Fri) by corbet (editor, #1) [Link]

Who is ever really off the clock in this field?

A patch posted from a company email address is assumed to be posted with that company's blessing. Anybody who doesn't have that blessing is probably violating all kinds of rules. In short: when somebody posts a patch, in the absence of information to the contrary, we attribute it to their employer. The results are necessarily approximate, but I'm not sure how to do them better.

Some numbers and thoughts on the stable kernels

Posted Aug 30, 2010 8:04 UTC (Mon) by spaetz (subscriber, #32870) [Link]

>Who is ever really off the clock in this field?

As a side note, I have seen some research on commit patterns across projects and it was really entertaining to see some projects following strict Mo-Fri 9-5 patterns while others (also including commercial developers) committed all over the place including weekends, nights etc.

I would love to see that research across a wide range

Some numbers and thoughts on the stable kernels

Posted Aug 31, 2010 21:16 UTC (Tue) by hingo (guest, #14792) [Link]

I've been playing with the idea of producing similar stats for MySQL/MariaDB development, to benchmark it against Linux and other similar projects. This is an excellent idea to add to the analysis! Thanks.

Some numbers and thoughts on the stable kernels

Posted Aug 31, 2010 16:00 UTC (Tue) by bfields (subscriber, #19510) [Link]

If I read lwn at work, am I shirking? If I read it after hours, am I bringing my work home with me? Help!

Some numbers and thoughts on the stable kernels

Posted Aug 28, 2010 0:04 UTC (Sat) by mpr22 (subscriber, #60784) [Link]

People almost never call anyone a dickhead on LWN :)

Some numbers and thoughts on the stable kernels

Posted Aug 30, 2010 16:57 UTC (Mon) by ironiridis (guest, #60586) [Link]

With regard to "never" seeing someone call GKH a dickhead, you might have comments from Hknr filtered on LWN.

Some numbers and thoughts on the stable kernels

Posted Sep 11, 2010 11:01 UTC (Sat) by gvy (guest, #11981) [Link]

> "volunteers are still our leading source of fixes"
Well, I tried to get the patch for deadlock issue our folks have nailed down and fixed (it was rather worked around upstream) along at least into 2.6.27.y since this summer, and so far rather failed to bring attention to the issue:

https://bugzilla.kernel.org/show_bug.cgi?id=15658

Tried to forward the message with brief explanation to LKML on Aug 28 but seems like it didn't pass through (at least not to lkml.org archive).

I've re-read all of tux.org/lkml just in case, but still need advice on *how* volunteers should pass the fixes for such non-obvious issues?

Thanks anyone who might find some time to aid with this one.

Some numbers and thoughts on the stable kernels

Posted Aug 16, 2012 13:20 UTC (Thu) by gvy (guest, #11981) [Link]

For the record, that bugfix has been discussed and accepted within two weeks of moving the bugreport to LKML and within something like 8 hours of wall clock. A lil' more patience ;-)


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