Merge pull request #3515 from cfallin/wasmtime-meeting-20211111

Wasmtime meeting notes from 2021-11-11.

meetings/wasmtime/2021/wasmtime-11-11.md

@@ -17,4 +17,53 @@
 
 ### Attendees
 
+- WGR
+- cfallin
+- acrichton
+- tschneidereit
+- bjorn3
+- abrown
+- fitzgen
+- Will W
+- jlbirch
+
 ### Notes
+
+* Till: milestone to report: Fastly recently hit 1 trillion Wasm instantiations; no
+  operational issues at scale (using Lucet with Cranelift)
+  - Close to switching over to Wasmtime
+  - Results from security assessment on integration of Wasmtime with Fastly's
+    environment; no issues found
+
+  - jlbirch: how will the switchover work?
+  - Till: Not a prolonged period with two separate runtimes
+  - Till: will update the group here once it's in production! In testing, we're
+    seeing significant performance gains, excited and optimistic.
+
+* Till: looking at optimizing the Python embedding, more info soon
+
+* abrown: back after two months (welcome!), what are we excited about and
+  looking forward to in the near future?
+  - Till: Alex put together release infra (automated), RFC for 1.0 release.
+    - before we do this, maybe a once-over on the documentation would be good
+    - also planning around announcement/publicity
+  - Till: Fastly has an intern working on wasm-mutate
+    - fitzgen: this is for fuzzing; taking a valid Wasm module and tweaking it
+      in some way to generate another case, for custom mutator hook
+  - cfallin: ISLE DSL in Cranelift
+  - WASI: adopted new format for the IDL, renamed it from witx. Better, more
+    approachable developer experience. Dan working on applying all of this to
+    wasi-libc, wasi-sdk, to make sure we have everything needed.
+
+  - Till: fuzzing?
+    - Alex: SIMD disabled until fuzzbugs fixed
+    - spec interpreter fuzzing disabled for now due to timeouts
+    - V8 differential fuzzing
+    - cfallin: alternate way of using spec interpeter for individual
+      instruction semantics possible
+    - Till: would be good to take stock of SIMD status eventually and see if we
+      might want to enable it
+  - Andrew: relaxed SIMD, flexible vectors?
+    - Alex: relaxed SIMD parsing from Yury at Mozilla
+    - cfallin: flexible vectors in progress by Sam Parker at ARM
+