cranelift

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Author	SHA1	Message	Date
Johnnie Birch	dff789c7c6	Adds JIT profiling support for VTune (#819 ) This patch adds initial support for ittapi which is an open source profiling api for instrumentation and tracing and profiling of jitted code. Result files can be read by VTune for analysis Build: cargo build --features=vtune Profile: // Using amplxe-cl from VTune amplxe-cl -v -collect hostpost target/debug/wasmtime --vtune test.wasm	5 years ago
Alex Crichton	3b7cb6ee64	Enable jitdump profiling support by default (#1310 ) * Enable jitdump profiling support by default This the result of some of the investigation I was doing for #1017. I've done a number of refactorings here which culminated in a number of changes that all amount to what I think should result in jitdump support being enabled by default: * Pass in a list of finished functions instead of just a range to ensure that we're emitting jit dump data for a specific module rather than a whole `CodeMemory` which may have other modules. * Define `ProfilingStrategy` in the `wasmtime` crate to have everything locally-defined * Add support to the C API to enable profiling * Documentation added for profiling with jitdump to the book * Split out supported/unsupported files in `jitdump.rs` to avoid having lots of `#[cfg]`. * Make dependencies optional that are only used for `jitdump`. * Move initialization up-front to `JitDumpAgent::new()` instead of deferring it to the first module. * Pass around `Arc<dyn ProfilingAgent>` instead of `Option<Arc<Mutex<Box<dyn ProfilingAgent>>>>` The `jitdump` Cargo feature is now enabled by default which means that our published binaries, C API artifacts, and crates will support profiling at runtime by default. The support I don't think is fully fleshed out and working but I think it's probably in a good enough spot we can get users playing around with it!	5 years ago

Author

SHA1

Message

Date

Johnnie Birch

dff789c7c6

Adds JIT profiling support for VTune (#819 )

This patch adds initial support for ittapi which is an open
source profiling api for instrumentation and tracing and profiling
of jitted code. Result files can be read by VTune for analysis

Build:
    cargo build --features=vtune
Profile: // Using amplxe-cl from VTune
    amplxe-cl -v -collect hostpost target/debug/wasmtime --vtune test.wasm

5 years ago

Alex Crichton

3b7cb6ee64

Enable jitdump profiling support by default (#1310 )

* Enable jitdump profiling support by default

This the result of some of the investigation I was doing for #1017. I've
done a number of refactorings here which culminated in a number of
changes that all amount to what I think should result in jitdump support being
enabled by default:

* Pass in a list of finished functions instead of just a range to
  ensure that we're emitting jit dump data for a specific module rather
  than a whole `CodeMemory` which may have other modules.
* Define `ProfilingStrategy` in the `wasmtime` crate to have everything
  locally-defined
* Add support to the C API to enable profiling
* Documentation added for profiling with jitdump to the book
* Split out supported/unsupported files in `jitdump.rs` to avoid having
  lots of `#[cfg]`.
* Make dependencies optional that are only used for `jitdump`.
* Move initialization up-front to `JitDumpAgent::new()` instead of
  deferring it to the first module.
* Pass around `Arc<dyn ProfilingAgent>` instead of
  `Option<Arc<Mutex<Box<dyn ProfilingAgent>>>>`

The `jitdump` Cargo feature is now enabled by default which means that
our published binaries, C API artifacts, and crates will support
profiling at runtime by default. The support I don't think is fully
fleshed out and working but I think it's probably in a good enough spot
we can get users playing around with it!

5 years ago

2 Commits (6e35f5406c1f8350762533a98b121c8ec8bef567)