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Gilles (Gilles Dubuc)
Senior Performance Engineer, WMF

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User Details

User Since
Oct 7 2014, 8:24 AM (267 w, 1 d)
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gilles
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Gilles
MediaWiki User
GDubuc (WMF) [ Global Accounts ]

Recent Activity

Today

Gilles added a comment to T238494: 200ms / 50% response start regression starting around 2019-11-11.

Do you expect that there's a delay for the SSL cert change to affect people? If that's the case then we can certainly see a regression ramping up between the 2 dots.

Wed, Nov 20, 3:02 PM · Patch-For-Review, Operations, Traffic, Performance-Team
Gilles added a comment to T238494: 200ms / 50% response start regression starting around 2019-11-11.

This is the data for cp3064 over that period.

Wed, Nov 20, 3:01 PM · Patch-For-Review, Operations, Traffic, Performance-Team
Gilles added a comment to T238086: Edge cache response time per server should be monitored.

I think it makes more sense to expose new navtiming metrics with Prometheus instead, especially for things like this that require slicing data by a new dimension.

Wed, Nov 20, 1:52 PM · Performance-Team (Radar), Traffic, Operations

Yesterday

Gilles edited projects for T122546: Cache rollback edit counts shown on recent changes, added: Performance-Team; removed Performance-Team (Radar).
Tue, Nov 19, 4:34 PM · Performance-Team, Growth-Team, MediaWiki-Recent-changes

Mon, Nov 18

Gilles added a comment to T238494: 200ms / 50% response start regression starting around 2019-11-11.

Assigning this to you, as it sounds like a very likely root cause to the sizeable performance regression

Mon, Nov 18, 3:40 PM · Patch-For-Review, Operations, Traffic, Performance-Team
Gilles assigned T238494: 200ms / 50% response start regression starting around 2019-11-11 to ema.
Mon, Nov 18, 3:40 PM · Patch-For-Review, Operations, Traffic, Performance-Team

Sun, Nov 17

Gilles added a project to T238494: 200ms / 50% response start regression starting around 2019-11-11: Traffic.
Sun, Nov 17, 1:51 PM · Patch-For-Review, Operations, Traffic, Performance-Team
Gilles renamed T238494: 200ms / 50% response start regression starting around 2019-11-11 from Response Start regression starting 2019-11-11 to 200ms / 50% response start regression starting around 2019-11-11.
Sun, Nov 17, 1:51 PM · Patch-For-Review, Operations, Traffic, Performance-Team
Gilles updated subscribers of T238494: 200ms / 50% response start regression starting around 2019-11-11.

@ema have you been switching text caches frequently enough that it could explain this? It seems like the new higher level is the new normal. This would suggest a performance degradation coming from ATS.

Sun, Nov 17, 1:50 PM · Patch-For-Review, Operations, Traffic, Performance-Team
Gilles updated the task description for T238494: 200ms / 50% response start regression starting around 2019-11-11.
Sun, Nov 17, 1:46 PM · Patch-For-Review, Operations, Traffic, Performance-Team
Gilles triaged T238494: 200ms / 50% response start regression starting around 2019-11-11 as High priority.
Sun, Nov 17, 1:43 PM · Patch-For-Review, Operations, Traffic, Performance-Team
Gilles created T238494: 200ms / 50% response start regression starting around 2019-11-11.
Sun, Nov 17, 1:42 PM · Patch-For-Review, Operations, Traffic, Performance-Team
Gilles triaged T238493: Frontend save timing regression on/after October 30, 2019 as High priority.
Sun, Nov 17, 1:40 PM · Performance-Team
Gilles added a comment to T238493: Frontend save timing regression on/after October 30, 2019.

What might be happening if frontend timing increasing so drastically while backend is stable? Edit stashing not working properly?

Sun, Nov 17, 1:39 PM · Performance-Team
Gilles assigned T238493: Frontend save timing regression on/after October 30, 2019 to aaron.
Sun, Nov 17, 1:37 PM · Performance-Team
Gilles created T238493: Frontend save timing regression on/after October 30, 2019.
Sun, Nov 17, 1:36 PM · Performance-Team
Gilles closed T238472: Review mobile device detection as Resolved.
Sun, Nov 17, 12:34 AM · Performance-Team

Sat, Nov 16

Gilles added a comment to T238472: Review mobile device detection.

Stats on users with Chrome Mobile browsing desktop pages:

Sat, Nov 16, 11:36 PM · Performance-Team
Gilles added a comment to T238472: Review mobile device detection.

The code looks fine: https://github.com/wikimedia/puppet/blob/1977cc259e91a1a57777caf491816960829edeb5/modules/varnish/templates/text-frontend.inc.vcl.erb#L15-L55

Sat, Nov 16, 11:35 PM · Performance-Team

Thu, Nov 14

Gilles added a comment to T238347: Add new SSH key for production access.

New public key:

Thu, Nov 14, 4:58 PM · SRE-Access-Requests, Operations
Gilles added a comment to T238347: Add new SSH key for production access.

Corresponding patch: https://gerrit.wikimedia.org/r/#/c/operations/puppet/+/550852/

Thu, Nov 14, 4:41 PM · SRE-Access-Requests, Operations
Gilles created T238347: Add new SSH key for production access.
Thu, Nov 14, 4:40 PM · SRE-Access-Requests, Operations
Gilles added a comment to T238056: Investigate Google Search Console Speed report trends.

Digging further in the sub-graphs of the search console, I find these potential one-time events that could be on our end and contributed to the loss in the overall URL classification:

Thu, Nov 14, 10:03 AM · Performance-Team
Gilles added a comment to T238056: Investigate Google Search Console Speed report trends.

Here are the 2 graphs on top of each other for Mobile:

Thu, Nov 14, 9:38 AM · Performance-Team
Gilles added a comment to T238186: Measure FID in synthetic testing.

Can you figure out which code these long tasks are coming from?

Thu, Nov 14, 9:19 AM · Performance-Team

Tue, Nov 12

Gilles moved T237506: Test AWS alarms from Inbox to Backlog: Small & Maintenance on the Performance-Team board.
Tue, Nov 12, 8:59 PM · WebPageReplay, WebPageTest, Performance-Team
Gilles triaged T238056: Investigate Google Search Console Speed report trends as High priority.
Tue, Nov 12, 8:58 PM · Performance-Team
Gilles moved T238056: Investigate Google Search Console Speed report trends from Inbox to Doing on the Performance-Team board.
Tue, Nov 12, 8:58 PM · Performance-Team
Gilles claimed T238056: Investigate Google Search Console Speed report trends.
Tue, Nov 12, 8:58 PM · Performance-Team
Gilles assigned T238056: Investigate Google Search Console Speed report trends to Peter.
Tue, Nov 12, 8:57 PM · Performance-Team
Gilles moved T238080: Phrasing on arclamp page needs to be fixed from Inbox to Backlog: Small & Maintenance on the Performance-Team board.
Tue, Nov 12, 8:57 PM · Performance-Team
Gilles moved T238085: Depooling single text caching server in esams had a disproportionate performance impact from Inbox to Radar on the Performance-Team board.
Tue, Nov 12, 8:57 PM · Performance-Team (Radar), Traffic, Operations
Gilles moved T238086: Edge cache response time per server should be monitored from Inbox to Radar on the Performance-Team board.
Tue, Nov 12, 8:56 PM · Performance-Team (Radar), Traffic, Operations
Gilles moved T238087: Add documentation for user journeys from Inbox to Backlog: Small & Maintenance on the Performance-Team board.
Tue, Nov 12, 8:55 PM · Documentation, Performance-Team
Gilles moved T238091: We should track First Input Delay (FID) in our RUM metrics from Inbox to Backlog: Future Goals on the Performance-Team board.
Tue, Nov 12, 8:54 PM · Performance-Team
Gilles moved T238098: vm request for xhgui from Inbox to Radar on the Performance-Team board.
Tue, Nov 12, 8:54 PM · Performance-Team (Radar), vm-requests, Operations
Gilles added a comment to T238085: Depooling single text caching server in esams had a disproportionate performance impact.

Impact of that test in Europe:

Tue, Nov 12, 8:07 PM · Performance-Team (Radar), Traffic, Operations
Gilles added a comment to T238091: We should track First Input Delay (FID) in our RUM metrics.

Oh ok, perfect. Yes, let's do that.

Tue, Nov 12, 8:01 PM · Performance-Team
Gilles created T238091: We should track First Input Delay (FID) in our RUM metrics.
Tue, Nov 12, 2:04 PM · Performance-Team
Gilles created T238086: Edge cache response time per server should be monitored.
Tue, Nov 12, 1:25 PM · Performance-Team (Radar), Traffic, Operations
Gilles created T238085: Depooling single text caching server in esams had a disproportionate performance impact.
Tue, Nov 12, 1:24 PM · Performance-Team (Radar), Traffic, Operations
Gilles created T238080: Phrasing on arclamp page needs to be fixed.
Tue, Nov 12, 1:00 PM · Performance-Team
Gilles added a comment to T238056: Investigate Google Search Console Speed report trends.

Further data from our own performance metrics that this is likely a Chrome 77/78 problem. A similar First paint regression seems to happen on desktop Chrome over that period:

Tue, Nov 12, 12:19 PM · Performance-Team
Gilles added a comment to T238056: Investigate Google Search Console Speed report trends.

As far as I can see, CrUX data doesn't contain browser version. So we won't be able to verify that theory without Google's help. I'll wait until I have access to the search console to get all the details before I file a Chrome bug about this.

Tue, Nov 12, 12:12 PM · Performance-Team
Gilles created T238056: Investigate Google Search Console Speed report trends.
Tue, Nov 12, 12:04 PM · Performance-Team
Gilles closed T238027: Flame graphs on performance.wikimedia.org are missing (404) as Resolved.

On codfw everything seems fine. On both eqiad and codfw arclamp-log restarted on Oct 25, which is when the log files stopped being written on eqiad.

Tue, Nov 12, 10:43 AM · Excimer, Arc-Lamp, Performance-Team

Tue, Nov 5

Gilles added a comment to T230941: [Spike, 8hrs] Investigate using display locking when expanding/collapsing sections.

Just the tasks for the follow-up work, so that I can subscribe to them. But it sounds like they haven't been filed yet?

Tue, Nov 5, 10:52 AM · Readers-Web-Backlog (Kanbanana-2019-20-Q2), Spike, MobileFrontend (MobileFrontend and MinervaNeue architecture)

Mon, Nov 4

Gilles moved T231086: Picture from Commons not found from Singapore from Inbox to Radar on the Performance-Team board.
Mon, Nov 4, 8:49 PM · Performance-Team (Radar), User-fgiunchedi, Structured-Data-Backlog, Structured Data Engineering, Multimedia, MW-1.34-notes (1.34.0-wmf.21; 2019-09-03), Patch-For-Review, MediaWiki-File-management, Commons, SRE-swift-storage, Traffic, Operations
Gilles moved T236412: Refactor BagOStuff to use a more storage/multi-DC aware interface hierarchy from Inbox to Blocked or Needs-CR on the Performance-Team board.
Mon, Nov 4, 8:48 PM · Core Platform Team, Patch-For-Review, MediaWiki-Cache, Performance-Team
Gilles moved T236414: CPT review/work for MediaWiki caching class maintenance ramp-up from Inbox to Radar on the Performance-Team board.
Mon, Nov 4, 8:47 PM · Performance-Team (Radar), User-Eevans, Core Platform Team Workboards (Clinic Duty Team)
Gilles added a comment to T230941: [Spike, 8hrs] Investigate using display locking when expanding/collapsing sections.

@nray @ovasileva @Jdlrobson what was the outcome in terms of decision-making and follow-up work on this topic? Is it documented somewhere?

Mon, Nov 4, 10:46 AM · Readers-Web-Backlog (Kanbanana-2019-20-Q2), Spike, MobileFrontend (MobileFrontend and MinervaNeue architecture)

Fri, Oct 25

Gilles added a comment to T236240: Ghostscript outputs errors to stdout despite -q, preventing Thumbor from generating some thumbnails properly.

Indeed, nice find! Adding -sstdout=%stderr fixes the issue.

Fri, Oct 25, 9:50 AM · Traffic, Operations, Thumbor, MediaWiki-File-management, Commons, Multimedia

Thu, Oct 24

Gilles reassigned T217318: A Large-scale Study of Wikipedia Users' Quality of Experience: data release from Gilles to JFishback_WMF.
Thu, Oct 24, 8:17 PM · Research, Security-Team, WMF-Legal, Analytics, Performance-Team
Gilles updated subscribers of T236414: CPT review/work for MediaWiki caching class maintenance ramp-up.
Thu, Oct 24, 6:25 PM · Performance-Team (Radar), User-Eevans, Core Platform Team Workboards (Clinic Duty Team)
Gilles closed T234853: Performance survey died on ruwiki on Sep 26 as Resolved.

No worries, it happens. Just keep that principle in mind for MediaWiki config in general, wiki-specific replaces default, it's not adding to it. I don't think there's any other big gotcha for surveys.

Thu, Oct 24, 1:52 PM · Performance-Team
Gilles added a comment to T236366: MediaWiki production config change not/randomly picked up by startup module after deployment.

By the looks of the survey dashboard, the issue might have gone away, but it's probably because another change to InitialiseSettings.php was just deployed: https://gerrit.wikimedia.org/r/#/c/operations/mediawiki-config/+/545816/

Thu, Oct 24, 11:49 AM · Operations, Core Platform Team, Performance-Team
Gilles added a comment to T217318: A Large-scale Study of Wikipedia Users' Quality of Experience: data release.

I've reviewed the data, it's exactly what we had requested and looks completely safe to release. @Nuria can you review these 2 files (takes 5 minutes, really) by Nov 4?

Thu, Oct 24, 10:50 AM · Research, Security-Team, WMF-Legal, Analytics, Performance-Team
Gilles renamed T236366: MediaWiki production config change not/randomly picked up by startup module after deployment from MediaWiki production config change not picked up by startup module after deployment to MediaWiki production config change not/randomly picked up by startup module after deployment.
Thu, Oct 24, 10:28 AM · Operations, Core Platform Team, Performance-Team
Gilles renamed T236366: MediaWiki production config change not/randomly picked up by startup module after deployment from MediaWiki production config change not picked up after deployment to MediaWiki production config change not picked up by startup module after deployment.
Thu, Oct 24, 10:28 AM · Operations, Core Platform Team, Performance-Team
Gilles added a comment to T236366: MediaWiki production config change not/randomly picked up by startup module after deployment.

Assigning this to you @Krinkle so you can do more digging on the ResourceLoader side of things.

Thu, Oct 24, 10:27 AM · Operations, Core Platform Team, Performance-Team
Gilles assigned T236366: MediaWiki production config change not/randomly picked up by startup module after deployment to Krinkle.
Thu, Oct 24, 10:27 AM · Operations, Core Platform Team, Performance-Team
Gilles triaged T236366: MediaWiki production config change not/randomly picked up by startup module after deployment as High priority.
Thu, Oct 24, 10:27 AM · Operations, Core Platform Team, Performance-Team
Gilles renamed T236366: MediaWiki production config change not/randomly picked up by startup module after deployment from MediaWiki config change not picked up after deployment to MediaWiki production config change not picked up after deployment.
Thu, Oct 24, 10:26 AM · Operations, Core Platform Team, Performance-Team
Gilles updated the task description for T236366: MediaWiki production config change not/randomly picked up by startup module after deployment.
Thu, Oct 24, 10:25 AM · Operations, Core Platform Team, Performance-Team
Gilles placed T236366: MediaWiki production config change not/randomly picked up by startup module after deployment up for grabs.
Thu, Oct 24, 10:24 AM · Operations, Core Platform Team, Performance-Team
Gilles created T236366: MediaWiki production config change not/randomly picked up by startup module after deployment.
Thu, Oct 24, 10:24 AM · Operations, Core Platform Team, Performance-Team
Gilles added a comment to T234853: Performance survey died on ruwiki on Sep 26.

Yep, confirmed, I see the config now that the startup module has been generated by another server. I've checked on one of the misbehaving app servers and the file on the FS is up to date. I suspect this has to do with PHP not picking up the new version of the file.

Thu, Oct 24, 10:17 AM · Performance-Team
Gilles updated subscribers of T234853: Performance survey died on ruwiki on Sep 26.

I'm still not seeing it in mw.config.get( 'wgEnabledQuickSurveys' ) on ruwiki, I don't know what's up with that. Trying some things out on mwmaint1002, it should pick it up.

Thu, Oct 24, 10:11 AM · Performance-Team
Gilles updated subscribers of T234853: Performance survey died on ruwiki on Sep 26.

Ok, found the issue, @Isaac mistakenly overrode the survey definition for ruwiki by rolling out another survey there: https://gerrit.wikimedia.org/r/#/c/operations/mediawiki-config/+/539183/

Thu, Oct 24, 9:00 AM · Performance-Team
Gilles added a comment to T234853: Performance survey died on ruwiki on Sep 26.

I don't see anything related in Common.js/Common.css so it might not be what happened.

Thu, Oct 24, 8:56 AM · Performance-Team
Gilles updated subscribers of T234853: Performance survey died on ruwiki on Sep 26.

@stjn did the ruwiki community block the survey on Sep 26? If you have a link to the corresponding community discussion for posterity, that would be helpful. There's no need to force the survey down people's throats as I'm not actively working on it. It was a nice-to-have to get an ongoing human performance metric, but I understand if people collectively got sick of seeing it.

Thu, Oct 24, 8:53 AM · Performance-Team
Elitre awarded T236240: Ghostscript outputs errors to stdout despite -q, preventing Thumbor from generating some thumbnails properly a Love token.
Thu, Oct 24, 8:35 AM · Traffic, Operations, Thumbor, MediaWiki-File-management, Commons, Multimedia
Gilles lowered the priority of T224253: Add secondary question(s) for the performance study from Low to Lowest.

Given the very limited bandwidth I have as manager, it seems unrealistic that I will get around to follow-up work on

Thu, Oct 24, 8:28 AM · Readers-Web-Backlog (Tracking), QuickSurveys, Performance-Team
Gilles lowered the priority of T224252: Memorize and store prior pageviews performance in the current session from Low to Lowest.
Thu, Oct 24, 8:28 AM · Readers-Web-Backlog (Tracking), QuickSurveys, Performance-Team
Gilles lowered the priority of T224248: Record order of randomized survey options from Low to Lowest.
Thu, Oct 24, 8:28 AM · Readers-Web-Backlog (Tracking), QuickSurveys, Performance-Team
Gilles added a comment to T236240: Ghostscript outputs errors to stdout despite -q, preventing Thumbor from generating some thumbnails properly.

I will try looking at this in my spare time, but can't promise anything. We need to figure out who's going to maintain Thumbor going forward.

Thu, Oct 24, 8:27 AM · Traffic, Operations, Thumbor, MediaWiki-File-management, Commons, Multimedia
Gilles claimed T236240: Ghostscript outputs errors to stdout despite -q, preventing Thumbor from generating some thumbnails properly.
Thu, Oct 24, 8:26 AM · Traffic, Operations, Thumbor, MediaWiki-File-management, Commons, Multimedia
Gilles renamed T236240: Ghostscript outputs errors to stdout despite -q, preventing Thumbor from generating some thumbnails properly from Error: 429, Too Many Requests while trying to access other resolutions for a PDF file to Ghostscript outputs errors to stdout despite -q, preventing Thumbor from generating some thumbnails properly.
Thu, Oct 24, 8:25 AM · Traffic, Operations, Thumbor, MediaWiki-File-management, Commons, Multimedia
Gilles added a comment to T236240: Ghostscript outputs errors to stdout despite -q, preventing Thumbor from generating some thumbnails properly.

It seems like the ghostscript command used by Thumbor outputs some errors to stdout that end up in the generated JPG, making it invalid and imagemagick is subsequently unable to resize that JPG and turn it into the desired thumbnail.

Thu, Oct 24, 8:25 AM · Traffic, Operations, Thumbor, MediaWiki-File-management, Commons, Multimedia
Gilles added a comment to T236240: Ghostscript outputs errors to stdout despite -q, preventing Thumbor from generating some thumbnails properly.

It is indeed unusual for this to apply to specific pages of a small PDF, even moreso for a PDF automatically generated by Google (which means it probably came from a Linux FLOSS software stack to be generated).

Thu, Oct 24, 7:59 AM · Traffic, Operations, Thumbor, MediaWiki-File-management, Commons, Multimedia
Gilles added a comment to T235755: Increased POST latency for MW app servers (Oct 2019).

A graph of unique IPs for POSTs would be useful to compare to here, or at least a breakdown of bot vs non-bot requests.

Thu, Oct 24, 7:32 AM · Performance-Team (Radar), serviceops, Operations

Wed, Oct 23

Gilles moved T217616: Ordered lists per default receive `decimal` list style type, which causes issues in non-arabic numeral scripts from Inbox to Doing on the Performance-Team board.
Wed, Oct 23, 8:00 PM · Patch-For-Review, Readers-Web-Backlog, Performance-Team, MediaWiki-ResourceLoader, Front-end-Standards-Group, MW-1.34-notes (1.34.0-wmf.3; 2019-04-30), UI-Standardization, UI-Standardization-Kanban, Regression, I18n, MinervaNeue
Gilles moved T235604: Send errors to IRC for the new synthetic testing setup from Inbox to Backlog: Small & Maintenance on the Performance-Team board.
Wed, Oct 23, 7:58 PM · WebPageReplay, WebPageTest, Performance-Team
Gilles moved T235672: ResourceLoader: Don't add a version hash param in debug mode from Inbox to Doing on the Performance-Team board.
Wed, Oct 23, 7:57 PM · Performance-Team, MediaWiki-ResourceLoader
Gilles assigned T235672: ResourceLoader: Don't add a version hash param in debug mode to Krinkle.
Wed, Oct 23, 7:57 PM · Performance-Team, MediaWiki-ResourceLoader
Gilles moved T235705: Add BagOStuff metrics for read/write operations (bytes, key "class") grouped by type/ID from Inbox to Doing on the Performance-Team board.
Wed, Oct 23, 7:55 PM · MediaWiki-Cache, Performance-Team
Gilles moved T230245: Mediawiki maintenance job "generate-fancycaptcha" - fatal error when trying to copy new captchas to storage from Inbox to Radar on the Performance-Team board.
Wed, Oct 23, 7:53 PM · Performance-Team (Radar), Operations, Core Platform Team, SRE-swift-storage, Editing-team, Wikimedia-production-error, ConfirmEdit (CAPTCHA extension)
Gilles moved T235755: Increased POST latency for MW app servers (Oct 2019) from Inbox to Radar on the Performance-Team board.
Wed, Oct 23, 7:50 PM · Performance-Team (Radar), serviceops, Operations
Gilles added a comment to T235755: Increased POST latency for MW app servers (Oct 2019).

Also, could it be related to T235872? And was there by any chance a small DDoS-like event around that time?

Wed, Oct 23, 7:50 PM · Performance-Team (Radar), serviceops, Operations
Gilles moved T235797: [SPIKE, 16hrs] We should not need 164kb of JS and 4.89kb of CSS (gzipped) to render a blank page in safemode from Inbox to Radar on the Performance-Team board.
Wed, Oct 23, 7:47 PM · Performance-Team (Radar), Readers-Web-Backlog (Kanbanana-2019-20-Q2), Spike, Desktop Improvements
Gilles moved T235817: Increase synthetic testing coverage to find more issues from Inbox to Backlog: Future Goals on the Performance-Team board.
Wed, Oct 23, 7:43 PM · Performance-Team
Gilles moved T235872: Investigate recurrent GET latency spikes on MediaWiki appservers (Oct 16) from Inbox to Radar on the Performance-Team board.
Wed, Oct 23, 7:42 PM · Performance-Team (Radar), Wikimedia-General-or-Unknown, serviceops, Operations
Gilles added a comment to T235872: Investigate recurrent GET latency spikes on MediaWiki appservers (Oct 16).

@elukey do you need something from the perf team for this task?

Wed, Oct 23, 7:42 PM · Performance-Team (Radar), Wikimedia-General-or-Unknown, serviceops, Operations
Gilles moved T235456: Let Arc-Lamp store its trace "log" files in compressed format from Backlog: Small & Maintenance to Doing on the Performance-Team board.
Wed, Oct 23, 7:31 PM · Arc-Lamp, Performance-Team
Gilles assigned T235456: Let Arc-Lamp store its trace "log" files in compressed format to aaron.
Wed, Oct 23, 7:30 PM · Arc-Lamp, Performance-Team
Gilles moved T230813: Performance review for the MachineVision extension from Inbox to Doing on the Performance-Team board.
Wed, Oct 23, 7:25 PM · MW-1.35-notes (1.35.0-wmf.8; 2019-11-26), Product-Infrastructure-Team-Backlog (Kanban), Patch-For-Review, Performance-Team, Machine vision
Gilles assigned T230813: Performance review for the MachineVision extension to aaron.
Wed, Oct 23, 7:14 PM · MW-1.35-notes (1.35.0-wmf.8; 2019-11-26), Product-Infrastructure-Team-Backlog (Kanban), Patch-For-Review, Performance-Team, Machine vision
Gilles added a comment to T226318: Thumbnail rendering of complex SVG file leads to Error 500 or Error 429 instead of Error 408.

@Elitre it should be its own task, since it's a PDF failing to render and this task is about an SVG.

Wed, Oct 23, 9:54 AM · Traffic, Operations, Thumbor, MediaWiki-File-management, Commons, Multimedia
Gilles placed T230813: Performance review for the MachineVision extension up for grabs.

Thanks, I will look for another volunteer on the perf team today as things have come up for the rest of the week and I don't have enough time left to do this properly.

Wed, Oct 23, 9:50 AM · MW-1.35-notes (1.35.0-wmf.8; 2019-11-26), Product-Infrastructure-Team-Backlog (Kanban), Patch-For-Review, Performance-Team, Machine vision
Gilles added a comment to T217318: A Large-scale Study of Wikipedia Users' Quality of Experience: data release.

@Fsalutari has put together a sanitised version of the dataset(s) according to what we agreed on. It's available as df_releasable_1.csv and df_releasable_2.csv under /home/fsalutari on stat1004. I probably won't get a chance to look at it until the week of November 10, but I figured I'd share it here in case you want to look at it before I get a chance to, @Nuria

Wed, Oct 23, 9:44 AM · Research, Security-Team, WMF-Legal, Analytics, Performance-Team