Imarlier (Ian Marlier)
User

Today

  • Clear sailing ahead.

Tomorrow

  • Clear sailing ahead.

Saturday

  • Clear sailing ahead.

User Details

User Since
Nov 13 2017, 5:57 PM (56 w, 2 d)
Availability
Available
LDAP User
Imarlier
MediaWiki User
IMarlier (WMF) [ Global Accounts ]

Recent Activity

Yesterday

Imarlier updated the post content for Blog Post: Why performance matters.
Wed, Dec 12, 4:21 PM

Tue, Dec 11

Imarlier updated subscribers of T211721: Establish an SLA for session storage.

Had an extended conversation with @Eevans about this on IRC today. His values are good with me -- as long as he/Core Platform feel that session storage is fast enough I'm happy to take the increased latency in exchange for a move toward multi-master.

Tue, Dec 11, 11:30 PM · TechCom, Services (next), Operations, Performance-Team, User-Clarakosi, Core Platform Team Backlog (Next), Core Platform Team (Session Management Service (CDP2)), User-Eevans
Imarlier added a comment to T211534: Pin test dependencies in perf-team Python projects.

@Krinkle Opened CR's for coal and navtiming. arc-lamp is missing most of the scaffolding for a python package (tox.ini, setup.py, etc), so rather than add that as part of this ticket, I'd suggest that the tox.ini file be created with a pinned version whenever that happens.

Tue, Dec 11, 5:54 PM · Performance-Team
Imarlier added a comment to T211534: Pin test dependencies in perf-team Python projects.

Verified that tox.ini pinning works, by changing and then running locally:

Tue, Dec 11, 5:28 PM · Performance-Team

Mon, Dec 10

Imarlier moved T181959: Blog post: Why we measure performance from Backlog: Impact / Goals to Doing on the Performance-Team board.
Mon, Dec 10, 9:15 PM · Performance-Team
Imarlier moved T211631: Add info boxes to all save timing graphs on Grafana from Inbox to Backlog: Small / Maintenance on the Performance-Team board.
Mon, Dec 10, 9:07 PM · Performance-Team
Imarlier moved T210484: Only serve debug HTTP headers when x-wikimedia-debug is present from Inbox to Doing on the Performance-Team board.
Mon, Dec 10, 9:07 PM · Operations, Analytics, Traffic, Performance-Team
Imarlier moved T210911: Request on mobile isn't recorded in the replay proxy from Inbox to Backlog: Small / Maintenance on the Performance-Team board.
Mon, Dec 10, 9:07 PM · WebPageReplay, Performance-Team
Imarlier assigned T210992: Increase parsercache keys TTL from 22 days back to 30 days to aaron.

@aaron to provide feedback, will assign back once he has.

Mon, Dec 10, 9:06 PM · Operations, Performance-Team, DBA
Imarlier assigned T204531: Wikidata dumps creating large amounts of log spam to aaron.

@aaron is going to see what else can be done to reduce spam, will then assign back to @ArielGlenn

Mon, Dec 10, 9:04 PM · MW-1.33-notes (1.33.0-wmf.9; 2018-12-18), Patch-For-Review, Performance-Team, Datacenter-Switchover-2018, MediaWiki-Logging, Wikidata, Dumps-Generation, Wikimedia-production-error
Imarlier moved T211487: Create on-wiki baseline page for our synthetic tests from Inbox to Backlog: Impact / Goals on the Performance-Team board.
Mon, Dec 10, 9:02 PM · WebPageTest, Performance-Team
Imarlier edited projects for T210416: Upgrade grafana to 5.x, added: Performance-Team (Radar); removed Performance-Team.
Mon, Dec 10, 9:01 PM · Performance-Team (Radar), Patch-For-Review, Operations, monitoring, User-CDanis
Imarlier moved T211352: Add info boxes on each graph/dashboard for WebPageReplay from Inbox to Doing on the Performance-Team board.
Mon, Dec 10, 9:00 PM · Performance-Team, WebPageReplay
Imarlier updated the task description for T211381: Detect performance changes on deploy more quickly.
Mon, Dec 10, 8:59 PM · Performance-Team
Imarlier assigned T211381: Detect performance changes on deploy more quickly to Peter.
Mon, Dec 10, 8:59 PM · Performance-Team
Imarlier edited projects for T205870: Provision >= 50% of statsd/Graphite-only metrics in Prometheus, added: Performance-Team (Radar); removed Performance-Team.
Mon, Dec 10, 8:57 PM · Performance-Team (Radar), Patch-For-Review, monitoring, Operations
Imarlier moved T68828: CentralAuth: Audit autologin procedure for performance and code quality from Inbox to Backlog: Impact / Goals on the Performance-Team board.
Mon, Dec 10, 8:54 PM · Performance-Team, MediaWiki-Authentication-and-authorization, MediaWiki-extensions-CentralAuth
Imarlier edited projects for T190379: RFC: Re-establish the development policies, added: Performance-Team (Radar); removed Performance-Team.
Mon, Dec 10, 8:52 PM · Performance-Team (Radar), TechCom-RFC, TechCom
Imarlier moved T211534: Pin test dependencies in perf-team Python projects from Inbox to Backlog: Small / Maintenance on the Performance-Team board.
Mon, Dec 10, 8:49 PM · Performance-Team
Imarlier moved T211538: Report cpu seconds to Graphite from MediaWiki from Inbox to Backlog: Impact / Goals on the Performance-Team board.
Mon, Dec 10, 8:49 PM · Performance-Team
Imarlier moved T211579: Test on multiple phones using one server from Inbox to Doing on the Performance-Team board.
Mon, Dec 10, 8:48 PM · Performance-Team
Imarlier moved T211618: New alert strategy: One URL can fire first visual change from Inbox to Backlog: Small / Maintenance on the Performance-Team board.
Mon, Dec 10, 8:48 PM · WebPageReplay, Performance-Team
Imarlier added a comment to T211534: Pin test dependencies in perf-team Python projects.

Given that we mix and match using pip to manage python deps (which is good!), and using puppet to install them (which is bad!), I'd suggest using a VERY light hand with this.

Mon, Dec 10, 3:46 PM · Performance-Team

Thu, Dec 6

Imarlier created T211381: Detect performance changes on deploy more quickly.
Thu, Dec 6, 9:38 PM · Performance-Team

Wed, Dec 5

Imarlier edited projects for T197954: Mobile Safari (WebView) produces invalid Navigation Timing data, added: Performance-Team (Radar); removed Performance-Team.
Wed, Dec 5, 10:23 PM · Performance-Team (Radar), Upstream, MediaWiki-extensions-NavigationTiming
Imarlier moved T186396: Remove desktop tests running on WebPageTest.org from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 5:37 PM · Performance-Team, WebPageTest
Imarlier moved T182949: Get size compressed and uncompressed size of JS and CSS from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 5:37 PM · Patch-For-Review, Performance-Team, WebPageTest
Imarlier moved T192536: High variance in Chrome for one of the URLs on the Japanese Wikipedia from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 5:37 PM · Performance-Team, WebPageTest
Imarlier moved T185741: Alert on log errors on Browsertime/WebPageReplay from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 5:36 PM · Performance-Team
Imarlier moved T101732: Use Service Worker cache when available for ResourceLoader caching instead of LocalStorage from Blocked to Backlog: Impact / Goals on the Performance-Team board.
Wed, Dec 5, 5:30 PM · MediaWiki-ResourceLoader, Performance-Team
Imarlier added a comment to T184681: Document how to run performance tests on real phones.

@phuedx Any chance that someone had an opportunity to look at this?

Wed, Dec 5, 5:24 PM · Readers-Web-Backlog (Tracking), Mobile, Documentation, Performance-Team
Imarlier edited projects for T107561: MediaWiki support for Composer equivalent for JavaScript packages, added: Performance-Team (Radar); removed Performance-Team.
Wed, Dec 5, 5:23 PM · Performance-Team (Radar), MediaWiki-ResourceLoader, Developer-Wishlist (2017), TechCom-RFC, Front-end-Standards-Group
Imarlier moved T188689: Finalise addModuleStyles() and addModuleScripts() legacy behaviours from Blocked to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 5:21 PM · MW-1.33-release, Performance-Team-notice, Performance-Team, MediaWiki-ResourceLoader
Imarlier added a comment to T197954: Mobile Safari (WebView) produces invalid Navigation Timing data.

Had a conversation with Apple Web Tech Evangelist, they are aware of this and it's assigned, but no release date known

Wed, Dec 5, 5:20 PM · Performance-Team (Radar), Upstream, MediaWiki-extensions-NavigationTiming
Imarlier moved T202479: Investigate source of 404 Not Found responses from load.php from Blocked to Doing on the Performance-Team board.
Wed, Dec 5, 5:17 PM · Operations, Traffic, Performance-Team
Imarlier moved T190936: navtiming.py: When processing metrics, include connectionType as a factor from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 5:08 PM · Performance-Team
Imarlier claimed T187684: Define key metrics (3-5 total) that we're tracking and go public with the metrics.
Wed, Dec 5, 5:08 PM · Performance-Team
Imarlier edited projects for T88445: MediaWiki active/active datacenter investigation and work (tracking), added: Performance-Team (Radar); removed Performance-Team.
Wed, Dec 5, 5:08 PM · Performance-Team (Radar), Availability (MediaWiki-MultiDC), Epic
Imarlier added a subtask for T193221: Mobile doesn't render until full HTML is downloaded in Chrome: T210141: Test our production stack's HTTP/2 priority support.
Wed, Dec 5, 5:05 PM · Upstream, Performance-Team
Imarlier added a parent task for T210141: Test our production stack's HTTP/2 priority support: T193221: Mobile doesn't render until full HTML is downloaded in Chrome.
Wed, Dec 5, 5:05 PM · Performance-Team
Imarlier moved T194639: Pick up Navigation Timing metrics with WebPageTest from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 5:01 PM · Performance-Team, WebPageTest
Imarlier moved T194684: Migrate Performance Inspector from GUI to console from Current Quarter Goals to Backlog: Impact / Goals on the Performance-Team board.
Wed, Dec 5, 5:01 PM · PerformanceInspector, Performance-Team
Imarlier moved T195233: Blog post: Explain how we use Browsertime/WebPageReplay from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 5:00 PM · Performance-Team
Imarlier moved T196312: Fine tune WebPageTest alerts from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 5:00 PM · WebPageTest, Performance-Team
Imarlier moved T102793: Bash tools with histograms, trends, and "field" tool should be available to all users on fluorine from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 5:00 PM · Performance-Team
Imarlier moved T153301: Make it easier compare WebPageTest results from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 4:59 PM · WebPageTest, Performance-Team
Imarlier assigned T185446: Add static Obama page as reference page for our tests to Krinkle.
Wed, Dec 5, 4:58 PM · WebPageTest, Performance-Team
Imarlier moved T189966: Audit and simplify MediaWiki initialisation code (Spring 2018) from Current Quarter Goals to Backlog: Impact / Goals on the Performance-Team board.
Wed, Dec 5, 4:58 PM · Core Platform Team Backlog (Watching / External), Technical-Debt, MediaWiki-General-or-Unknown, Performance-Team
Imarlier moved T159668: WebPageTest private server loads assets from Google from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 4:57 PM · Performance-Team, Upstream, WebPageTest
Imarlier edited projects for T133462: Provide standard-compatible way to load multi-file packages (not plain concatenation), added: Performance-Team (Radar); removed Performance-Team.
Wed, Dec 5, 4:57 PM · Performance-Team (Radar), Patch-For-Review, TechCom-RFC (TechCom-Approved), Readers-Web-Backlog (Tracking), Front-end-Standards-Group, MediaWiki-ResourceLoader
Imarlier removed a project from T200526: ThumbnailRenderJob should use MWHttpRequest isOK() function: Patch-For-Review.
Wed, Dec 5, 4:56 PM · Multimedia, MediaWiki-File-management, Commons, Performance-Team
Imarlier closed T200526: ThumbnailRenderJob should use MWHttpRequest isOK() function as Declined.
Wed, Dec 5, 4:55 PM · Multimedia, MediaWiki-File-management, Commons, Performance-Team
Imarlier updated subscribers of T200758: Performance review for SecureLinkFixer extension.

@CCicalese_WMF @Legoktm Is this ready to review? We are a bit unclear on current status.

Wed, Dec 5, 4:54 PM · Core Platform Team Kanban (Blocked Externally), Core Platform Team (Security, stability, performance and scalability (TEC1)), Patch-For-Review, Performance-Team, MediaWiki-extensions-SecureLinkFixer
Imarlier moved T185724: Publish Doxygen for RunningStat library from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 4:52 PM · Librarization, Performance-Team, RunningStat, Continuous-Integration-Config
Imarlier moved T198394: Change viewport for desktop tests (Browsertime and WebPageTest) from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 4:51 PM · WebPageReplay, WebPageTest, Performance-Team
Imarlier closed T203845: [Bug] 150 ms increase in edit response time median since August 18th, 2018 as Resolved.

Same as T205369, which has been resolved.

Wed, Dec 5, 4:51 PM · Readers-Web-Backlog (Tracking), Performance-Team
Imarlier moved T211220: Update Save Timing grafana dashboards to break down by content model from Inbox to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 4:50 PM · Performance-Team
Imarlier created T211220: Update Save Timing grafana dashboards to break down by content model.
Wed, Dec 5, 4:50 PM · Performance-Team
Imarlier moved T204423: MW 1.31 install reports "InvalidArgumentException ... DatabaseDomain.php: Domain has too few or too many parts " from Current Quarter Goals to Blocked on the Performance-Team board.
Wed, Dec 5, 4:46 PM · Performance-Team, MW-1.32-release, MW-1.31-release, MediaWiki-Database, MediaWiki-Installer
Imarlier added a comment to T204423: MW 1.31 install reports "InvalidArgumentException ... DatabaseDomain.php: Domain has too few or too many parts ".

@mwjames we believe that this is fixed, but we're waiting on confirmation of that. Could you please let us know if this is addressed for you?

Wed, Dec 5, 4:46 PM · Performance-Team, MW-1.32-release, MW-1.31-release, MediaWiki-Database, MediaWiki-Installer
Imarlier edited projects for T204245: Run MediaWiki media originals active/active, added: Performance-Team (Radar); removed Performance-Team.
Wed, Dec 5, 4:44 PM · Performance-Team (Radar), User-fgiunchedi, Availability (MediaWiki-MultiDC), Epic
Imarlier moved T204174: FileOperation error "SwiftFileBackend::addMissingMetadata: {path} was not stored with SHA-1 metadata." from Current Quarter Goals to Doing on the Performance-Team board.
Wed, Dec 5, 4:44 PM · MW-1.33-notes (1.33.0-wmf.8; 2018-12-11), Patch-For-Review, Performance-Team, Thumbor, MediaWiki-File-management, Wikimedia-production-error
Imarlier moved T205601: Clean up start script for WebPageReplay from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 4:43 PM · WebPageReplay, Performance-Team
Imarlier assigned T206288: Exception from LinksUpdate "Could not acquire lock for page" when a page is edited frequently to Krinkle.
Wed, Dec 5, 4:43 PM · Performance-Team, MediaWiki-General-or-Unknown, Wikimedia-production-error
Imarlier assigned T206283: Deadlock exception from LinksUpdate in WikiPage::updateCategoryCounts to Krinkle.
Wed, Dec 5, 4:42 PM · Performance-Team, MediaWiki-Database, Wikimedia-production-error
Imarlier moved T207440: Chrome 69 -> Chrome 70 changes in metrics from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 4:41 PM · WebPageTest, WebPageReplay, Performance-Team
Imarlier moved T208804: Start work on a Chores list for Performance Team from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 4:41 PM · Performance-Team
Imarlier moved T203543: Chrome 69 increase time for first visual change in synthetic testing from Current Quarter Goals to Backlog: Small / Maintenance on the Performance-Team board.
Wed, Dec 5, 4:40 PM · WebPageReplay, Upstream, Performance-Team
Imarlier edited projects for T207941: Spike of DBTransactionSizeError exceptions from /w/api.php from Special:Watchlist, added: Performance-Team (Radar); removed Performance-Team.
Wed, Dec 5, 4:39 PM · Performance-Team (Radar), Growth-Team, Patch-For-Review, Wikimedia-production-error

Tue, Dec 4

Imarlier added a comment to T196378: Investigate solutions for MySQL connection pooling.

@jcrespo Why would we need to deploy Mediawiki in order to repoint when the master is switched? Wouldn't the proxy be responsible for that?

Tue, Dec 4, 2:51 PM · DBA, Availability (MediaWiki-MultiDC), Performance-Team (Radar), Operations

Mon, Dec 3

Imarlier reassigned T207718: Errors trying to fetch RDF from Wikidata from Imarlier to Smalyshev.
Mon, Dec 3, 9:13 PM · Traffic, Operations, Performance-Team, Wikidata, Wikidata-Query-Service
Imarlier added a comment to T207718: Errors trying to fetch RDF from Wikidata.

@Smalyshev Guessing this should go back to you for followup?

Mon, Dec 3, 8:48 PM · Traffic, Operations, Performance-Team, Wikidata, Wikidata-Query-Service
Imarlier added a comment to T207718: Errors trying to fetch RDF from Wikidata.

I've been running this in a tmux session on a few of the wdqs servers: while :; do DSTAMP=$(date); CW=$(sudo netstat -anet | grep 208.80.154.224 | grep -c CLOSE_WAIT); echo "${DSTAMP}: ${CW}"; sleep 1; done >> ~/close_waits.txt. (154.224 is the edge for the text cache cluster.)

Mon, Dec 3, 8:48 PM · Traffic, Operations, Performance-Team, Wikidata, Wikidata-Query-Service
Imarlier added a comment to T207718: Errors trying to fetch RDF from Wikidata.

@Smalyshev Yes, it would be slower, but it would also be diagnostic -- if persistent connections are disabled and the errors stop, we can be pretty confident that something about the way that they're configured is what's resulting in this issue.

Mon, Dec 3, 7:55 PM · Traffic, Operations, Performance-Team, Wikidata, Wikidata-Query-Service
Imarlier added a comment to T207718: Errors trying to fetch RDF from Wikidata.

@Smalyshev Another thought: why not just disable pooling, and have the client close each connection after each request?

Mon, Dec 3, 7:51 PM · Traffic, Operations, Performance-Team, Wikidata, Wikidata-Query-Service
Imarlier added a comment to T207718: Errors trying to fetch RDF from Wikidata.

@BBlack @ema Couple of questions for you about Nginx:

  • Do we have nginx configured to handle a specific number of requests on a given worker process/thread, and then shut that down?
  • If it possible for nginx to be restarted (interrupting existing persistent connections) due to config updates or the like, and if so, is there a record of times when that has happened?
Mon, Dec 3, 7:18 PM · Traffic, Operations, Performance-Team, Wikidata, Wikidata-Query-Service
Imarlier added a comment to T177747: grafana-labs often fails to generate graphs with c.datapoints is undefined.

tentatively resolving, graphite 0.9.15 is on labmon1001 (jessie) while production runs graphite 1.x on stretch

Mon, Dec 3, 3:28 PM · cloud-services-team, Graphite, Cloud-VPS

Fri, Nov 30

Imarlier awarded T205369: Investigate > 40% Save Timing regression (2018-09-05) a Mountain of Wealth token.
Fri, Nov 30, 7:06 PM · Core Platform Team Kanban (Done with CPT), Performance-Team-notice, Core Platform Team (MCR), Multi-Content-Revisions (Reactive), Performance-Team
Imarlier added a comment to T205369: Investigate > 40% Save Timing regression (2018-09-05).

Hey, that looks a lot better! Nice work, @daniel !

Fri, Nov 30, 7:06 PM · Core Platform Team Kanban (Done with CPT), Performance-Team-notice, Core Platform Team (MCR), Multi-Content-Revisions (Reactive), Performance-Team
Imarlier closed T210824: Barack Obama and other pages significant performance drop as Resolved.

Banner went live - happens every year

Fri, Nov 30, 2:27 PM · Regression, Performance-Team

Thu, Nov 29

Imarlier added a comment to T210725: Replace parsercache keys to something more meaningful on db-XXXX.php.

@jcrespo I should have kept my answer simpler: I think it's fine to go ahead and do this. I would suggest changing one key (eg, '10.64.0.12' becomes 'pc1'), and deploying that. Wait 24-48 hours, until the hit rate has basically recovered, then change the second key. Wait another 24-48 hours, and change the last one.

Thu, Nov 29, 6:56 PM · Performance-Team (Radar), DBA, User-Marostegui, MediaWiki-Database
Imarlier added a comment to T210725: Replace parsercache keys to something more meaningful on db-XXXX.php.

So given the fact that we started with all the pc partially cold after switching back from codfw to eqiad (due to replication being disconnected) and we kinda survived - maybe we can try to switch keys one by one on a controlled manner?. So like flushing one parsercache per month?

I like the idea - we should ensure that the services undisturbed even in the worst conditions - if we flush those regularly we'll be sure that we don't have to worry about a crash

Thu, Nov 29, 4:08 PM · Performance-Team (Radar), DBA, User-Marostegui, MediaWiki-Database

Wed, Nov 28

Imarlier added a comment to T206497: Enable $wgMFNoindexPages for: Italian, Dutch, Korean, Arabic, Chinese, and Hindi Wikipedias.

+Wikimedia-Site-requests since this is a request for a configuration change.

The premise on T205495 was:

We are not currently providing Google the metadata that they request in order to properly index mobile sites...

To date, no one has responded to cscott on T198970#4706473 about how the Google indexing pipeline works. What indications do we have that this will make any difference for Google? What are the contingency plans in case this experiment goes wrong?

It doesn't seem like this is ready for a production deployment yet.

Wed, Nov 28, 2:44 PM · Wikimedia-Site-requests, Patch-For-Review, Hindi-Sites, Chinese-Sites, Readers-Web-Backlog (Tracking), SEO

Tue, Nov 27

Imarlier closed T200524: MWHttpRequest needs to be a little smarter about setting status as Declined.

I still think that there are better options for status than the way that MWHttpRequest handles it, but I'm not going to pursue changing it. If @BPirkle happens to do this differently as part of the Guzzle work that he's been doing, though, I'd support it...

Tue, Nov 27, 6:46 PM · Patch-For-Review, MediaWiki-General-or-Unknown, Performance-Team
Imarlier closed T200524: MWHttpRequest needs to be a little smarter about setting status, a subtask of T200346: wmf.14 failing to execute ThumbnailRender jobs "error: ThumbnailRenderJob::run: HTTP request failure" , as Declined.
Tue, Nov 27, 6:46 PM · Patch-For-Review, Traffic, Wikimedia-General-or-Unknown, Operations, Wikimedia-production-error

Mon, Nov 26

Imarlier moved T201718: Tracking blocks: Log when the desktop VisualEditor + 2010 wikitext editor block notice is displayed from Inbox to Doing on the Performance-Team board.
Mon, Nov 26, 9:15 PM · MW-1.33-notes (1.33.0-wmf.6; 2018-11-27), Anti-Harassment (AHT Sprint 34), Performance-Team, Patch-For-Review
Imarlier moved T190396: Consider splitting the IDatabase interface from Inbox to Backlog: Impact / Goals on the Performance-Team board.
Mon, Nov 26, 9:13 PM · Performance-Team, User-Addshore, MediaWiki-Database
Imarlier moved T210046: Integrate https://chromedevtools.github.io/timeline-viewer/ to our trace logs from Inbox to Doing on the Performance-Team board.
Mon, Nov 26, 9:13 PM · Patch-For-Review, WebPageReplay, Performance-Team
Imarlier moved T210125: Add documentation for how to instrument frontend measurements from Inbox to Current Quarter Goals on the Performance-Team board.
Mon, Nov 26, 9:13 PM · Performance-Team
Imarlier moved T210141: Test our production stack's HTTP/2 priority support from Inbox to Doing on the Performance-Team board.
Mon, Nov 26, 9:07 PM · Performance-Team
Imarlier moved T210206: Deprecate raw SQL for IDatabase query conditions (select, insert, etc.) from Inbox to Backlog: Impact / Goals on the Performance-Team board.

@aaron Would be great to have your input on this

Mon, Nov 26, 9:07 PM · MediaWiki-Database, Performance-Team, TechCom
Imarlier added a comment to T209857: Create ISP ranking based on RUM data.

As @aaron noted, Comcast is only a home network provider, not mobile, I presume that the rest of that is people on their home wifi with a phone or tablet. That makes sense to me.

Mon, Nov 26, 8:48 PM · MW-1.33-notes (1.33.0-wmf.8; 2018-12-11), Patch-For-Review, Performance-Team
Imarlier added a comment to T192478: Investigate PEP 503 repo for production deployment of python wheels.

@Ladsgroup I don't think that's correct. There still needs to be a way to install dependencies into containers at some stage in the build process, assuming that there's a non-zero number of libraries that are packaged by us and shared by more than one app.

Mon, Nov 26, 7:31 PM · Scoring-platform-team, Release-Engineering-Team, Performance

Tue, Nov 20

Imarlier added a comment to T208934: mcrouter does not remove a memcached shard from consistent hashing when timeouts happen.

If we do go this route, we should have monitoring/alerting on access to the gutter boxes.

Tue, Nov 20, 8:06 PM · Performance-Team (Radar), User-Elukey, MediaWiki-Cache, Operations

Mon, Nov 19

Imarlier edited projects for T206341: Evaluate scalability and performance of PHP7 compared to HHVM, added: Performance-Team (Radar); removed Performance-Team.
Mon, Nov 19, 9:19 PM · Patch-For-Review, Performance-Team (Radar), Operations
Imarlier assigned T207941: Spike of DBTransactionSizeError exceptions from /w/api.php from Special:Watchlist to Gilles.
Mon, Nov 19, 9:19 PM · Performance-Team (Radar), Growth-Team, Patch-For-Review, Wikimedia-production-error
Imarlier moved T208897: PHP Fatal Error: Argument passed to MessageCache::isMainCacheable() must be array from Inbox to Doing on the Performance-Team board.
Mon, Nov 19, 9:15 PM · Performance-Team, MediaWiki-Cache, Wikimedia-production-error

Fri, Nov 16

Imarlier added a comment to T206341: Evaluate scalability and performance of PHP7 compared to HHVM.

@Joe Might be interesting to look at specific calls that appear to perform less well, to see if we can identify specific calls that are slower. xhprof/tideways might be an approach...

Fri, Nov 16, 3:43 PM · Patch-For-Review, Performance-Team (Radar), Operations
Imarlier updated the task description for T206496: Create sitemaps for Indonesian, Portuguese, Punjabi, Dutch, and Korean Wikipedias.
Fri, Nov 16, 3:25 PM · Performance-Team, Patch-For-Review, SEO
Imarlier updated the task description for T206496: Create sitemaps for Indonesian, Portuguese, Punjabi, Dutch, and Korean Wikipedias.
Fri, Nov 16, 3:25 PM · Performance-Team, Patch-For-Review, SEO