Don't tune when doing perf

Author: mdboom

bench_runner/templates/_benchmark.src.yml

@@ -221,7 +221,7 @@ jobs:
       - name: Tune system
         if: ${{ steps.should_run.outputs.should_run != 'false' }}
         run: |
-          sudo LD_LIBRARY_PATH=$LD_LIBRARY_PATH venv/bin/python -m pyperf system tune
+          sudo LD_LIBRARY_PATH=$LD_LIBRARY_PATH venv/bin/python -m pyperf system ${{ inputs.perf && 'reset' || 'tune' }}
       - name: Tune for (Linux) perf
         if: ${{ steps.should_run.outputs.should_run != 'false' && inputs.perf }}
         run: |