testing - will revert

Author: scottgerring

.github/workflows/pr_criterion.yaml

@@ -9,14 +9,21 @@ jobs:
     name: run benchmark
     permissions:
       pull-requests: write
+
+    # If we're running on a PR, use ubuntu-latest - a shared runner. We can't use the self-hosted
+    # runners on arbitrary PRs, and we don't want to unleash that load on the pool anyway.     
+    # If we're running on main, use the OTEL self-hosted runner pool. 
     runs-on: ${{ github.event_name == 'pull_request' && 'ubuntu-latest' || 'self-hosted' }}
     if: |
       ${{ 
         github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'performance') ||
         github.event_name == 'push'
       }}
     env:
-      BRANCH_NAME: ${{ github.event_name == 'pull_request' && github.base_ref || 'HEAD~1' }}
+      # If we're running on a PR, diff against `main`
+      # If we're running on main, diff against the previous commit - "HEAD~1"
+      #BRANCH_NAME: ${{ github.event_name == 'pull_request' && github.base_ref || 'HEAD~1' }}
+      BRANCH_NAME: "HEAD~1"
     steps:
       - uses: actions/checkout@v4
       - uses: arduino/setup-protoc@v3