eliott/servo
1
0
Fork 0
mirror of https://github.com/servo/servo synced 2026-04-25 17:15:48 +02:00
Code Issues Packages Projects Releases Wiki Activity
Page: Meeting 2014 08 12
Pages
Adding a new WebIDL binding Alternative Logo Proposals and Related Swag Asynchronous WebAssembly compilation project Austin Oxidation Autogeneration of style structs Basic SVG support project Beginner's guide to rebasing and squashing Benchmarking Benchmarks Bots Browser Engine Research Build Errors FAQ Buildbot administration Building for Android Building for Magic Leap Building for UWP Building on ARM desktop Linux Building CI Services we use CSS parse error reporting CSSOM student project Canvas rendering project Cargo upgrade service project Code rust concurrency Code Review Code of Conduct Coding standards Compiler upgrade recipes Compositor Layer Design Contributing Control Servo using WebDriver Creating and viewing WARC web archives in Servo Creating new OpenSSL Windows binary distributions Cross compiling from linux to mac Crowbot Css selector matching meeting 2013 07 19 DOM Design DOM documentation DOM missing pieces Debugging JS web compat issues Debugging and editing tools Debugging Design Developer tools student project Devtools CSS errors Devtools plans Devtools Diagnosing SpiderMonkey JIT issues Eric Atkinson visit 2013 09 10 Events and sundry Expand HTTP request response monitoring Fetch improvement project Firefox Reality release notes FirefoxReality build Firewall setup for servo master1 Focus student project Form validation student project GSoC project brainstorming Garbage collected DOM Getting started with layout GitHub Labels Github & Critic PR handling 101 Github workflow Glossary Governance Graphics toolkit integration HTML parser improvement project HTMLElement binding conversion HTTP archive support project HTTP library requirements Hawaii Rooting High priority content for layout Highfive HoloLens 2 test plan Home How to generate GStreamer binaries for CI Image load conformance student project Image maps project Implement HTML charset parsing project Implement ImageBitmap project Implement missing WebAudio automation student project Implement support for missing XMLHttpRequest APIs Implement worker modules Implementing a web standard (RGSoC) Improve specification conformance of unicode bidi library Incremental flow tree construction Infrastructure Integrate xml5ever Intern project brainstorming Intern projects JS objects, wrappers, and cross origin concerns 2013 08 07 Layout 2020 Layout Overview Layout resources Layout revamp ideas Leo meyerovich visit 2013 07 22 Linux sandboxing London Oxidation London Security Meeting 2014 10 27 Meeting 2014 12 08 Meeting 2012 02 08 Meeting 2012 02 16 Meeting 2012 07 20 Meeting 2013 04 01 Meeting 2013 04 15 Meeting 2013 04 22 Meeting 2013 04 29 Meeting 2013 05 06 Meeting 2013 05 13 Meeting 2013 05 20 Meeting 2013 06 03 Meeting 2013 06 10 Meeting 2013 06 14 Meeting 2013 06 17 Meeting 2013 06 24 Meeting 2013 07 01 Meeting 2013 07 15 Meeting 2013 07 22 Meeting 2013 07 29 Meeting 2013 08 05 Meeting 2013 08 12 Meeting 2013 08 19 Meeting 2013 09 09 Meeting 2013 09 16 Meeting 2013 09 23 Meeting 2013 09 30 Meeting 2013 10 14 Meeting 2013 10 21 Meeting 2013 10 28 Meeting 2013 11 04 Meeting 2013 11 18 Meeting 2013 11 25 Meeting 2013 12 02 Meeting 2013 12 09 Meeting 2013 12 16 Meeting 2014 01 06 Meeting 2014 01 13 Meeting 2014 01 21 Meeting 2014 01 27 Meeting 2014 02 03 Meeting 2014 02 10 Meeting 2014 02 24 Meeting 2014 03 10 Meeting 2014 03 17 Meeting 2014 03 24 Meeting 2014 03 31 Meeting 2014 04 07 Meeting 2014 04 14 Meeting 2014 04 21 Meeting 2014 04 28 Meeting 2014 05 05 Meeting 2014 05 13 Meeting 2014 05 19 Meeting 2014 06 09 Meeting 2014 06 17 Meeting 2014 06 23 Meeting 2014 06 30 Meeting 2014 07 07 Meeting 2014 07 14 Meeting 2014 07 21 Meeting 2014 07 29 Meeting 2014 08 04 Meeting 2014 08 11 Meeting 2014 08 12 Meeting 2014 08 18 Meeting 2014 08 25 Meeting 2014 09 08 Meeting 2014 09 15 Meeting 2014 09 22 Meeting 2014 09 29 Meeting 2014 10 06 Meeting 2014 10 13 Meeting 2014 10 20 Meeting 2014 11 10 Meeting 2014 11 17 Meeting 2014 11 24 Meeting 2014 12 15 Meeting 2015 01 05 Meeting 2015 01 12 Meeting 2015 01 26 Meeting 2015 02 09 Meeting 2015 02 23 Meeting 2015 03 02 Meeting 2015 03 16 Meeting 2015 03 30 Meeting 2015 04 06 Meeting 2015 04 13 Meeting 2015 04 27 Meeting 2015 05 04 Meeting 2015 05 11 Meeting 2015 05 18 Meeting 2015 06 01 Meeting 2015 06 08 Meeting 2015 06 15 Meeting 2015 07 06 Meeting 2015 07 13 Meeting 2015 07 27 Meeting 2015 08 10 Meeting 2015 08 17 Meeting 2015 08 24 Meeting 2015 08 31 Meeting 2015 09 14 Meeting 2015 09 21 Meeting 2015 09 28 Meeting 2015 10 05 Meeting 2015 10 12 Meeting 2015 10 19 Meeting 2015 10 26 Meeting 2015 11 02 Meeting 2015 11 09 Meeting 2015 11 16 Meeting 2015 11 30 Meeting 2016 01 04 Meeting 2016 01 11 Meeting 2016 01 25 Meeting 2016 02 01 Meeting 2016 02 08 Meeting 2016 02 22 Meeting 2016 03 07 Meeting 2016 03 21 Meeting Devtools Servo 2 Meetings Microdata project Minutes Hackathon 2012 03 27 Missing DOM features project More ServiceWorker support project More developer tools student project Mozlandia Automation Mozlandia B2S Mozlandia JS Mozlandia Rust In Gecko Mozlandia WPT Mozlandia gfx Mozlando Devtools Servo Mozlando Oxidation Mozlando SM Servo Mozlando Servo Bluetooth Mozlando Servo MagicDOM Mozlando Servo SMStrings Mutation observer project Mutation testing project NCSU student projects Network security project Off main thread HTML parsing project Offscreen canvas improvements project Offscreen canvas project Orlando Oxidation 2018 Oxidation 2015 11 05 Persistent sessions student project Preparing ARM libraries for CI Priority of CSS properties Priority of DOM implementation Priority of dom bindings Private browsing student project Profiling Project proposal deadlines Prototype JS form controls student project Prototype ways of splitting the script crate Publishing a new ANGLE NuGet version Publishing a new app store release Push vs Pull for caching Random web content project Refactor GLES2 student project Refactor bluetooth support student project Remaining work Removing push notifications from IRC hooks Replace C libraries student project Report new contributors project Representation of computed style Research Reviewer Roadmap Running Web Platform Tests on Servo Rust HTML parser Rust SpiderMonkey debugger API Rust cssparser code walk 2013 08 02 SaltStack Administration San Francisco Oxidation Servo Benchmarking Report (December 2024) Servo Benchmarking Report (November 2024) Servo Benchmarking Report (October 2024) Servo Layout Engines Report Servo and SpiderMonkey Report Servo for Gecko Developers Specification Links SpiderMonkey related tasks SpiderMonkey infodump SpiderMonkey upgrade details Storage student project Streaming webassembly student project Strings Student project brainstorm Student projects Styling overview Stylo hacking guide Summer of Code 2014: Implement XMLHttpRequest Summer of Code 2016: Fetch API Summer of Code 2016: File support Summer of Code 2016: ServiceWorker infrastructure Summer of Code projects Summit meeting 2013 09 09 Support WebDriver based tests project Syncing web platform tests (WPT) TaskCluster Testing Tools Tracking intermittent failures over time project Transcription Notes from Servo Architecture talk in Suwon Transcription notes from rust patterns talk in suwon Transcription parallelism Transcription rust concurrency Transcription rust runtime Transription layout and acid2 Trinity College Dublin student projects UPenn student projects Updating the Rust compiler used by Servo Upgrading non taskcluster linux CI machines Upgrading the UWP gstreamer binaries Upgrading the windows LLVM binaries Upgrading wptrunner Using DOM types Using Rust Spidermonkey Prototype Using WebWorker Prototype Version 0.1 Videos and presentations WebAudio JS interfaces student project WebAudio nodes student project WebCompatBug WebSocket student project Webdriver student project Webdriver tests student project Webrender Overview Whistler 2019 notes Whistler Bugzilla Whistler FFOS Whistler GFX Whistler Houdini1 Whistler Houdini2 Whistler Necko Whistler Oxidation 2019 Work items for new contributors Workweek COW DOM Workweek alt js Workweek android arm Workweek boot 2 servo Workweek compiler lints Workweek displaylist Workweek dogfooding Workweek encoding Workweek generated content Workweek governance Workweek graphics stack Workweek graphics toolkit Workweek incremental layout Workweek js bindings status Workweek layers Workweek layers2 Workweek pixels Workweek rasterization Workweek reftests Workweek roadmap Workweek script crate Workweek security Workweek string interning Workweek tables Workweek writing modes XML parser student project infra triage notes jQuery status webxr.today support
Clone
1
Meeting 2014 08 12
Lars Bergstrom edited this page 2014-08-11 14:25:05 -07:00
Table of Contents

Agenda

Attending

  • jack
  • larsberg
  • Ms2ger
  • Manishearth
  • laleh
  • zwarich
  • azita
  • mbrubeck
  • SimonSapin

Workweek

  • jack: Sent out the poll for a workweek. We have budget for a workweek for Servo again. It's unclear how much we can do for Servo at the all-Mozilla workweek in December, so we thought it might be a good idea to revive our cancelled workweek plan. The original ones we decided upon are too early for approved travel.
  • simonsapin: Is the week of October 20th not an option?
  • jack: I'd only be able to be there a short amount of the time - I'd be double-booked. We'd also have to have it in SF, which would be really expensive. Owait, no, ALBQ.
  • azita: The SF option in the last check I did, it depends. In the last budget check with travel, it seemed to be about the same as Mountain View and Portland. I don't think it's too much more.
  • jack: But in Portland, we spent 300/400 per person less and had a lot more events.
  • azita: If half the team is here in SF and they go home, it all turns out to be the same. Just as an option.
  • jack: Please vote soon! We have to decide quickly,

Rust hi-pri bugs

  • larsberg: We're down to two right now. The macros/hygiene one blocking the HTML parser is still outstanding; Felix working on it. The other one doesn't have anyone assigned yet; I'll ask brson about that.
  • jack: Is this the segfault we just found in opt builds?
  • larsberg: Yes.
  • jack: For anyone who missed it, we landed the Rust upgrade with a simple workaround for that bug but we still don't understand the underlying bug. If you see mysterious segfaults in opt builds, ping me or larsberg.
  • jack: There was another one Luqman did from the last upgrade which finally landed over the weekend.

Memory issues

  • larsberg: I measured again this morning. Good news: the rust upgrade landed with a fix for stack lifetimes. Bad news: We still have a problem with big stacks. There must be some native thread that's causing a bunch of trouble. pcwalton: We may not be lazily mapping stack segments. So the OS is giving us a big segment it's counting against our memory usage. I should point out there's work being done by a community member to make Rust use guard pages instead of the current stack checks, which means that if you run out of stack in a C function we would now correctly detect that and fail more gracefully than the explosion that currently happens. I believe in Servo if you set small stacks then the JS engine will fail in mysterious ways.
  • jack: Previously we suspected the JS engine was the culprit because of the way it migrated between green threads. But I believe jdm and Ms2ger committed something that pins it to a task.
  • zwarich: Did that get landed?
  • Ms2ger on IRC): Not yet. Linker issues.
  • larsberg: I'm suspicious because if you measure memory usage just after initial render, then again after something like a resize, the memory usage explodes.
  • pcwalton: We should try just passing the flags to reduce stack size.
  • zwarich: I'm not sure how larsberg is measuring stack space, but it seemed njn was only measuring resident pages, not mapped ones. So I'm not sure reducing the stack size will help, if we're actually using all that space.
  • pcwalton: If we're using massive amounts of stack space then it should be fairly straightforward to track down.

Some other patches

  • jack: I have a stack of patches I've been working on between Rust upgrades. I'm curious what people want me to work on most. Currently I'm working on 32-bit builds. The other thing I'm trying to do is get bors redone for our new Travis workflow. Also working on mach/cargo integration. Any opinions?
  • pcwalton: I like the idea of using cargo since our contract is coming up.
  • Manishearth: Anything I can help with on bors?
  • jack: I'll send you my bors stuff and I'll move ahead on cargo.

Workweek (2)

  • Simonsapin: location?
  • jack: No plans yet, except not Portland :-)
  • Simonsapin: But likely US?
  • jack: Yes. Getting tired of coming here?
  • Simonsapin: No, I have another trip at the end of October, so it would be ideal to just extend that.
  • azita: Does that mean the November week is better for you?
  • Simonsapin: Yes. W3C TPAC is the week of Oct 27 (in Santa Clara).
  • jack: I think you and jdm and myself travel the most. Hopefully between us we can find something that works for everybody.

Gamedev

  • jack: I also noticed Piston did a freetype binding that's way better than ours. Not just the FFI calls - they have modules for glyphs, etc. If anyone is going to be doing font stuff in the near future, we might want to port to the better binding and retire rust-freetype.
  • pcwalton: Sounds great!

Android

  • jack: Has anyone got Android working with the new upgrade?
  • mbrubeck: I built it on Thursday or Friday on the Rust upgrade branch just before it landed and it was fine then. I'll look again.
  • pcwalton: laleh said we're still 4-5x slower than Firefox. Turn it off?
  • jack: Sounds good to me.
  • pcwalton: Yeah, I think layout logging is probably killing us.
  • jack: Should try it and see, then PR it.
  • larsberg: Was just on because Android was always broken. I'd be fine turning it off.
  • jack: I tried hard not to break Android this time.
  • jack: What's up with random killing?
  • manishearth: There's a time limit (10 minutes) without any output and then it gets killed... script is probably hitting it.
  • jack: It shouldn't ever take 10 minutes to compile a servo crate, right?
  • zwarich: We could test it by logging times for when it starts logging crates.
  • manishearth: I think it already has timestamps per line... (nope)
  • jack: We can turn logging of codegen on in rustc.
  • pcwalton: -Z time-passes, too.
  • jack: Would be nice if we could debug this with their help; are they back from their workweek?
  • larsberg: I believe the Travis team is supposed to be back this week.

Parallel builds

  • jack: Splitting up the build into multiple sessions seems to take longer - Travis would run the first three, then the next three, etc.
  • manish: Travis throttles, especially for OSX, where you don't get all the VMs at once. Even if you have 10 commits, it'll only allocate VMs sequentially. I don't know the exact logistics behind it, though.
  • jack: Should we do less splitting? Just w-p-t separately?
  • manish: That should work.
  • jack: I assume the w-p-t is the thing that takes us over the limit.
  • manish: Yes, when Ms2ger enabled HTML tests, it went way over. Didn't even get to halfway.
  • simonsapin: Can we get more allocated VMs?
  • jack: I think that was on the list of our travis requests before. Maybe try switching it so we get more builds? That would make it faster. Adding Android and a 32-bit target would be additional ones already...