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x64: enable VTune support by default (#3821)

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* x64: enable VTune support by default

After significant work in the `ittapi-rs` crate, this dependency should
build without issue on Wasmtime's supported operating systems: Windows,
Linux, and macOS. The difference in the release binary is <20KB, so this
change makes `vtune` a default build feature. This change upgrades
`ittapi-rs` to v0.2.0 and updates the documentation.

* review: add configuration for defaults in more places

* review: remove OS conditional compilation, add architecture

* review: do not default vtune feature in wasmtime-jit
This commit is contained in:
Andrew Brown
2022-02-22 08:32:09 -08:00
committed by GitHub
parent bbd52772de
commit c183e93b80
9 changed files with 25 additions and 26 deletions
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12
docs/examples-profiling.md
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@@ -1,9 +1,13 @@
# Profiling WebAssembly
One of WebAssembly's major goals is to be quite close to native code in terms of
performance, so typically when executing wasm you'll be quite interested in how
well your wasm module is performing! From time to time you might want to dive a
bit deeper into the performance of your wasm, and this is where profiling comes
performance, so typically when executing Wasm you'll be quite interested in how
well your Wasm module is performing! From time to time you might want to dive a
bit deeper into the performance of your Wasm, and this is where profiling comes
into the picture.
Profiling support in Wasmtime is still under development, but if you're using either [perf](./examples-profiling-perf.md) or [Vtune](./examples-profiling-vtune.md) the examples in these sections are targeted at helping you get some information about the performance of your wasm modules.
Profiling support in Wasmtime is still under development, but if you're using
either [perf](./examples-profiling-perf.md) or
[VTune](./examples-profiling-vtune.md) the examples in these sections are
targeted at helping you get some information about the performance of your Wasm
modules.