Stream: git-wasmtime

Topic: wasmtime / issue #4977 ISLE: Resolve remaining x64 overla...

Wasmtime GitHub notifications bot (Sep 28 2022 at 22:50):

github-actions[bot] commented on issue #4977:

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cc @cfallin, @fitzgen

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Wasmtime GitHub notifications bot (Sep 29 2022 at 00:08):

cfallin commented on issue #4977:

good confirmation that the changes are benign

I spoke too soon actually; it seems that the simd_lane test is failing, but hopefully it's an easy reordering/fix...

Wasmtime GitHub notifications bot (Sep 29 2022 at 00:22):

elliottt commented on issue #4977:

good confirmation that the changes are benign

I spoke too soon actually; it seems that the simd_lane test is failing, but hopefully it's an easy reordering/fix...

Yep, I'll make sure to add a filetest once I diagnose the problem :+1:

Wasmtime GitHub notifications bot (Sep 29 2022 at 02:42):

elliottt commented on issue #4977:

Fixed in 3b7b4ce4fff71159176b112b86122c45a60a46bf. I was trying to avoid using a priority when I could add a negative assertion on a flag value, but given that the branch I was trying to assert the negation of used an and with two flags, this just wasn't sound: I would need an or here to make it work.

Wasmtime GitHub notifications bot (Sep 29 2022 at 17:09):

elliottt commented on issue #4977:

Performance seems pretty unaffected:

Here's a measurement on my laptop (which is admittedly noisy) for compiling the bz2 benchmark:

% hyperfine --runs=100 --warmup=10 --show-output "taskset 0x1 ./target/release/wasmtime compile ../sightglass/benchmarks/bz2/benchmark.wasm"
Benchmark 1: taskset 0x1 ./target/release/wasmtime compile ../sightglass/benchmarks/bz2/benchmark.wasm
  Time (mean ± σ):     102.2 ms ±   1.2 ms    [User: 96.9 ms, System: 5.3 ms]
  Range (min … max):    99.7 ms … 105.1 ms    100 runs

And here's the same measurement on main:

% hyperfine --runs=100 --warmup=10 --show-output "taskset 0x1 ./target/release/wasmtime compile ../sightglass/benchmarks/bz2/benchmark.wasm"
Benchmark 1: taskset 0x1 ./target/release/wasmtime compile ../sightglass/benchmarks/bz2/benchmark.wasm
  Time (mean ± σ):     100.8 ms ±   1.2 ms    [User: 95.1 ms, System: 5.6 ms]
  Range (min … max):    98.9 ms … 103.6 ms    100 runs

I got pretty large variance between individual runs, but both were pretty consistently close.

Last updated: Dec 23 2024 at 13:07 UTC