Create benchmark runs to Profile IR engine JS hot paths with both JSC and Hermes - Githubissues

rebeckerspecialties / benchmarking-test-app

React Native test app for exploring benchmarking in AWS Device Farms

3 stars 0 forks source link

Create benchmark runs to Profile IR engine JS hot paths with both JSC and Hermes #10

Closed hmallen99 closed 2 months ago

hmallen99 commented 2 months ago

We want to compare JavaScriptCore (JSC) and Hermes performance so that we can select the correct target to migrate IR engine to for React Native.

Wrap the IR hotpath benchmarks with the CPU profiler from XCode instruments
Create benchmark runs for both Hermes and JSC
Export the resulting instruments profile artifacts

React Native should be using Hermes by default. We also need a JSC build:

Create a new folder ios-jsc in apps/benchmarking-test-app
Update the podfile: https://reactnative.dev/docs/hermes#switching-back-to-javascriptcore
Generate a new IPA from the resulting xcode workspace
Add a secondary test run to the GitHub actions config using the JSC ipa