wg-performance Status Update 2022-02-14 #105

Activity

1. erwinmombay

   added

   Type: Status Update

   on Feb 14, 2022
2. rcebulko commented on Feb 14, 2022

   

   rcebulko

   on Feb 14, 2022

   More actions

   What was accomplished

   • traffic experiments for Bento Compiler
   • BC service distribution and latency improvements
   • Various bugfixes and improvements to metrics reporting/collection
   • minimum-RTV threshold
   • Hand-off planning for work related to I2I: Introduce PREVIEW visibility state amphtml#37129

   Lessons Learned

   • Deploying high-availability low-latency services is tricky

   What's Next

   • Traffic ramp-up and monitoring
3. alexnj commented on Feb 14, 2022

   

   alexnj

   on Feb 14, 2022

   Member

   More actions

   What was accomplished

   • go/client-ab: Updated the design document to incorporate some of the feedback.
   • Prototype updated to avoid runtime evaluations — transforms now encoded as JS functions at PRE_UA.
   • Open source review completed and launched at https://github.com/alexnj/ab-worker-prototype.

   Lessons Learned

   • Open source speed-run process at Google.

   What's Next

   • Prototype a restricted set of serialization types.
   • Draft design documents for:
     • Browser-integrated GDPR Privacy/Cookie Consent spec.
     • Paywall detection and link decoration.
   • Chrome Speed Metrics team presentation of go/client-ab.
4. samouri commented on Feb 14, 2022

   

   samouri

   on Feb 14, 2022

   Member

   More actions

   What was accomplished

   bento compiler

   • Integrations pains of BC backend and frontend. So many bugs (bump worker-dom and bento-compiler amphtml#37652, bump worker-dom version. bento-compiler#41, babel loose mode compat: dont spread Set worker-dom#1133, Add support for nextElementSibling and previousElementSibling worker-dom#1132, Fix boolean attribute handling s.t. it doesnt have 'undefined' value bento-compiler#40)
   • One more in-progress: 🐛 compiler.js buildDoms: ensure behavior matches browser amphtml#37671
   • Measured performance benefit of BC, and it can improve LCP by 45%! (🚀 🚀 🚀 amp-carousel ssr: allow render without JS 🚀 🚀 🚀  amphtml#37646)

   other

   • Fix typo in "Salesforce MArketing Cloud" amp.dev#6291
   • Remove @nocollapse annotation which was closure-specific. amphtml#37630
   • R1: schedule amp-bind targets amphtml#37619
   • Remove Asia/Oceania from design review rotation. amphtml#37599
   • rm: @suppress checkTypes amphtml#37594
   • src/preact: use URL instead of parseUrlDeprecated amphtml#37561
   • Remove HTML Tag from post title bentojs.dev#172
   • Kris departure documents/writeups

   What's Next

   • More BC Integration / ramp-up / measurements.
5. erwinmombay commented on Feb 14, 2022

   

   erwinmombay

   on Feb 14, 2022

   MemberAuthor

   More actions

   What was accomplished

   • build localization strings for amp-story to be deployed on cache 🏗 build and copy story localization strings to dist on amp build and amp dist amphtml#37623
   • fixed critical amp-story bug in iOS where the dvh-polyfill script was not getting calculated correctly since the meta[name=viewport] tag would cause a resize but no event fired

   Lessons Learned

   • meta[name=viewport] ordering matters and is better as one of the first elements in head

   What's Next

   • inline amp-story translations strings as part of an experiment
6. jridgewell commented on Feb 16, 2022

   

   jridgewell

   on Feb 16, 2022

   Contributor

   More actions

   What was accomplished

   • Launched size-adjsut experiment for Google Fonts
   • Make image ingestion resilient to individual format transcoding errors
   • Design doc for making image resizing better
   • 🐛 Insert empty newline as first line of minified outputs amphtml#37640
     • 🏗️ Fix a bug with remapping when dist is run a second time amphtml#37653
     • Fix build for windows amphtml#37660
   • Mark startLayout error as expected amphtml#37641
   • Switch to trace-mapping package error-tracker#138
   • Investigated Brotli support in CloudFlare Workers
     • The default compression is using a fast quality that produces large sizes (even larger than GZIP!).
     • Worked out how to support precompressed .js.br files again.
   • Code reviews on bento module patterns
   • Work on string-dedent TC39 proposal
   • Making babel sourcemap merging faster (and bugfixes, sorry!)
     • Switch to @ampproject/remapping to merge source maps babel/babel#14209
     • Support merging sourcemaps when transformed file is fully replaced babel/babel#14247
     • Convert all SourceMapConsumers to TraceMaps babel/babel#14253
     • Convert all SourceMapConsumers to TraceMaps babel/babel#14253

   Lessons Learned

   What's Next

   • Prepending brotli streams
   • Supporting edge-cached AMP documents
   • WASM jolt
7. erwinmombay

   closed this as completedon Feb 28, 2022