Wikitech-l December 2014

wikitech-l@lists.wikimedia.org

88 participants
99 discussions

Re: [Wikitech-l] [Engineering] MediaWiki flame graphs
by Jon Robson 16 Dec '14

16 Dec '14

These are pretty cool. I'd love to see a mobile specific one: https://phabricator.wikimedia.org/T78621 On Mon, Dec 15, 2014 at 3:48 PM, Aaron Schulz <aschulz(a)wikimedia.org> wrote: > Cool! > > On Mon, Dec 15, 2014 at 3:42 PM, Ori Livneh <ori(a)wikimedia.org> wrote: >> >> I'm writing to draw your attention to a newly-available resource for >> performance analysis: flame graphs of MediaWiki code. >> >> http://performance.wikimedia.org/xenon/svgs/ >> >> Flame graphs are a visualization of application stack traces. >> >> Each application server on the Wikimedia cluster has a software timer that >> interrupts MediaWiki once every ten minutes to capture a stack trace. The >> stack trace shows what the code the application server was in the process of >> executing when the timer expired. A central log aggregator collects these >> traces and uses them to generate flame graphs. >> >> Each box in a flame graph represents a function in the stack. The y-axis >> shows stack depth. The topmost box shows the function that was on-CPU at the >> moment the trace was captured. The function below a function is its parent. >> >> The x-axis spans the sample population. The width of the box shows the >> total time it was on-CPU or part of an ancestry that was on-CPU, based on >> sample count. >> >> Here is an example: >> http://performance.wikimedia.org/xenon/svgs/hourly/2014-12-15_22.svgz >> >> To learn more about flame graphs and how to interpret them, see >> <http://www.brendangregg.com/flamegraphs.html>. >> >> >> _______________________________________________ >> Engineering mailing list >> Engineering(a)lists.wikimedia.org >> https://lists.wikimedia.org/mailman/listinfo/engineering >> > > > -- > -Aaron S > > _______________________________________________ > Engineering mailing list > Engineering(a)lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/engineering >

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Design/Event for your Project or Event?
by Rachel Farrand 15 Dec '14

15 Dec '14

Hello! I am a mentor for Google Code In this year and am looking for ways to help the engineering community and engage the students in the program. If you have a project, event or team that that needs a logo, t-shirt design, sticker design, etc. Please let me know and I will be happy to help get your project into GCI and mentor it for you. I cannot promise you professional level results, but you might be pleasantly surprised with what comes back. You may end up with something you want to use that way it is or you may end up with some inspiration. No harm in trying anyways and it is a great opportunity for the students to become introduced and exposed to corners of the wikimedia communities that they might not otherwise find. If you would like to work together on this, please email me back and let me know what you are looking for/thinking of and an guidelines you have. More information about Google Code In here: https://developers.google.com/open-source/gci/ Thanks! Rachel

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Check your MediaWiki extensions tests against hhvm
by Antoine Musso 15 Dec '14

15 Dec '14

Hello, I have added Jenkins jobs to run your extension PHPUnit tests with hhvm. Since the tests might be failing, the job is not triggered on patchset proposal, one has to comment in Gerrit 'check experimental'. Please do so on your favourite extensions or patches and report back any issue there :] I will make the job to trigger on patch proposal by the end of the week. Note: I have already added an HHVM based job for mediawiki-core. It is non voting for now pending upgrade of our hhvm version. cheers, -- Antoine "hashar" Musso

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Your oldest Phabricator tasks
by Quim Gil 15 Dec '14

15 Dec '14

Somehow I got into the habit of checking this Phabricator report linking to the oldest open task assigned to each user: https://phabricator.wikimedia.org/maniphest/report/?order=-oldest-all Your username probably appears in this list. If not, it's probably time to take a task and assign it to you. :) There are 223 users with tasks assigned, from which 132 have a task assigned that was created at least one year ago. At least in the upper section of the list, most tasks welcome a fresh look, and your help is welcome (starting by your own tasks). There is a convenient tooltip showing the title of the tasks linked. There is a complementary view of the same list, sorting users by number of tasks assigned. https://phabricator.wikimedia.org/maniphest/report/?order=-total I'm currently 20th with 24 tasks assigned, which is already unrealistic. You might want to re-check your assigned tasks for everybody's benefit and your own. See also https://www.mediawiki.org/wiki/Phabricator/Project_management#Assigning_tas… -- Quim Gil Engineering Community Manager @ Wikimedia Foundation http://www.mediawiki.org/wiki/User:Qgil

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Recent growth of wikidatawiki.imagelinks table size
by wp mirror 14 Dec '14

14 Dec '14

Dear list members, I have noticed a recent growth in the dump files for the `wikidatawiki.imagelinks' table: wikidatawiki-20140912-imagelinks.sql.gz 253K wikidatawiki-20141009-imagelinks.sql.gz 1.8M wikidatawiki-20141106-imagelinks.sql.gz 5.5M wikidatawiki-20141205-imagelinks.sql.gz 11.9M Does anyone know the cause? Sincerely Yours, Kent

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Requests for comment indices automatization
by MZMcBride 14 Dec '14

14 Dec '14

Hi. We have two requests for comment indices on mediawiki.org: * https://www.mediawiki.org/wiki/Requests_for_comment * https://www.mediawiki.org/wiki/Requests_for_comment/Archive The current system requires manually updating the various lists, which is kind of gross as the lists predictably fall out of date. I've proposed and begun to implement a classification scheme that will allow us to automate the generation of these indices. Details of this scheme are available here: <https://www.mediawiki.org/wiki/Special:Permalink/1315007#Cleanup>. One consequence of this change is that the "Updated" and "Status" table columns will likely go away soon. Looking at the contents of these table columns, I think ditching them is probably fine. Comments, criticisms, concerns, etc. are welcome. MZMcBride

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User account ownership
by Ricordisamoa 13 Dec '14

13 Dec '14

What about storing structured info about who actually owns a user account? For example, bots -> maintainer(s), doppelgänger -> main account, WMF account -> personal account. This would lead to several advantages, such as the ability to block a bot and its maintainer at once, as well as to prevent sockpuppets from voting. The relationship would have to be confirmed by both accounts, of course.

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Tech Talk: Phabricator for Wikimedia Projects: Dec 11
by Rachel Farrand 13 Dec '14

13 Dec '14

Please join us for the following tech talk: *Tech Talk**:* Phabricator for Wikimedia projects *Presenter:* Quim Gil & Andre Klapper *Date:* Dec 11 *Time:* 1800 UTC <http://www.timeanddate.com/worldclock/fixedtime.html?msg=Phab+Tech+Talk&iso…> Link to live YouTube stream <http://www.youtube.com/watch?v=_yr5z9Ix2f8> *IRC channel for questions/discussion:* #wikimedia-office Google+ page <https://plus.google.com/u/0/b/103470172168784626509/events/cjb4le2ntnqogbbu…>, another place for questions *Talk description: * Phabricator is a collaboration platform open to all Wikimedians. We focus on bug reporting and software projects. Non-technical initiatives are welcome as well. Did you know that the first reason why we chose Phabricator was to serve as project management tool? Wikimedians use/used a variety of tools for project management: Trello, Mingle, Scrumbugz, Bugzilla, Asana, Google Docs, and of course wiki pages too. In this demo-based session we will explain how to organize your work with Phabricator at a project level, team level, and individual level. How to set projects, priorities, and tags, how to manage workboards and dashboards, how to organize sprints. Thanks! Rachel

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Roadmap and deployment highlights - Week of December 15th
by Greg Grossmeier 13 Dec '14

13 Dec '14

Hello and welcome to the latest edition of the WMF Engineering Roadmap and Deployment update. The full log of planned deployments next week can be found at: <https://wikitech.wikimedia.org/wiki/Deployments#Week_of_December_15th> REMINDER: After next week, there will be no more normal deployments until the new year. In other words, there will be no more scheduled updates to MediaWiki rolled out to production until January 6th. A quick list of notable items... == All Week == * Fundraising on-going through the rest of the year * HHVM: reimaging servers to HHVM, should be completed by end of year == Tuesday == * MediaWiki deploy ** group1 to 1.25wmf12: All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites) ** <https://www.mediawiki.org/wiki/MediaWiki_1.25/wmf12> == Wednesday == * Phabricator Maintenance (outage) from 4pm Pacific until midnight ** ie: 00:00 UTC - 08:00 Thursday ** To migrate RT (internal ticketing system used by WMF Operations) ** See: <https://phabricator.wikimedia.org/T174> * MediaWiki deploy ** group2 to 1.25wmf12 (all Wikipedias) ** group0 to 1.25wmf13 (test/test2/testwikidata/mediawiki) Thanks and as always, questions and comments welcome, Greg -- | Greg Grossmeier GPG: B2FA 27B1 F7EB D327 6B8E | | identi.ca: @greg A18D 1138 8E47 FAC8 1C7D |

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Blackfire, a PHP Profiler
by Antoine Musso 12 Dec '14

12 Dec '14

Hello, A good friend talked to me about yet another PHP Profiler which has a fairly nice and friendly user interface. Basically drop an extension on your server, add a plugin to your Chromium browser and you are set to profile your backend straight from the browser \O/ It has been created by SensioLabs, the authors of Symfony Frameworks and looks gorgeous. I think it is worth a look at and figure out whether it works with a HHVM Homepage: https://blackfire.io/ Review by my friend: http://blog.blackfire.io/pomm-a-two-hours-run-with-blackfire.html -- Antoine "hashar" Musso

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Wikitech-l December 2014