doc: move perf tools and APIs to Tier 3

V8 CodeEventHandler, V8 CpuProfiler, Linux perf and the `--interpreted-frames-native-stack`, `--prof` and `--prof-process` flags satisfies our Diagnostics Support requirements for Tier 3. V8 CodeEventHandler and CpuProfiler are tested as part of our V8 CI, and `Linux perf` / `--interpreted-frames-native-stack` are tested by `test/v8-updates/test-linux-perf.js`. `--prof` and `--prof-process` are tested in Node.js test suite. PR-URL: #22915 Reviewed-By: Gireesh Punathil <[email protected]> Reviewed-By: Joyee Cheung <[email protected]> Reviewed-By: Michael Dawson <[email protected]>

Author: mmarchini

doc/guides/diagnostic-tooling-support-tiers.md

@@ -106,9 +106,13 @@ The tools are currently assigned to Tiers as follows:
 
 ## Tier 3
 
-| Tool Type | Tool/API Name | Regular Testing in Node.js CI | Integrated with Node.js | Target Tier |
-|-----------|---------------------------|-------------------------------|-------------------------|-------------|
-||||||
+| Tool Type | Tool/API Name | Regular Testing in Node.js CI | Integrated with Node.js | Target Tier |
+|-----------|--------------------------------------|-------------------------------|-------------------------|-------------|
+| Profiling | V8 CPU profiler | Partial (V8 Tests) | Yes | 1 |
+| Profiling | --prof/--prof-process flags | Yes | Yes | 1 |
+| Profiling | V8 CodeEventHandler API | Partial (V8 Tests) | Yes | 2 |
+| Profiling | V8 --interpreted-frames-native-stack | Yes | Yes | 2 |
+| Profiling | Linux perf | Yes | Partial | 2 |
 
 ## Tier 4
 
@@ -136,10 +140,6 @@ The tools are currently assigned to Tiers as follows:
 | Tracing | LTTng | No | Removed? | N/A |
 | Tracing | ETW | No | Partial | 3 |
 | Tracing | Systemtap | No | Partial | ? |
-| Profiling | V8 CPU profiler (--prof) | No | Yes | 1 |
-| Profiling | V8 CodeEventHandler API | No | Yes | ? |
-| Profiling | V8 --interpreted-frames-native-stack | Yes | Yes | ? |
-| Profiling | Linux perf | Yes | Partial | ? |
 | Profiling | DTrace | No | Partial | 3 |
 | Profiling | Windows Xperf | No | ? | ? |
 | Profiling | 0x | No | No | 4 |