[Feature] Profiling support in Bun

[s1gr1d]

Description

Bun is not built on V8 but on Safari's JavaScriptCore (JSC), and we would need an entirely different implementation of the profiler in order to be able to profile the bun runtime.

Upvoting on this issue helps us prioritize this (see statement below in "Priority").

Also mentioned in this issue:

• Bun: Crash when using nodeProfilingIntegration() integration #13577

Reasons against implementing this

• Bun has a console.profile which might do something similar (at least in dev): https://bun.com/reference/globals/Console/profile
• Production profiling in Bun still has issues, for example leaking memory very fast: CPU profiler leaks memory very rapidly oven-sh/bun#24858

Resources

• https://bun.com/reference/bun/jsc/profile
• https://bun.com/docs/project/benchmarking

Related APIs

• Node inspector.Profile in Bun (inspector not implemented in Bun): https://bun.com/reference/node/inspector/Profiler/Profile
• Node GC Profiler (implemented in Bun, but different profiler): https://bun.sh/reference/node/v8/GCProfiler

Priority

_{React with 👍 to help prioritize this feature. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.}

[linear-code]

JS-1906