hwbench: add option --no-tuning to disable tuning for some runs

hwbench/hwbench.py

@@ -36,7 +36,7 @@ def main():
     # configure logging
     init_logging(tuning_out_dir / "hwbench-tuning.log")
 
-    tuning_setup.Tuning(tuning_out_dir).apply()
+    tuning_setup.Tuning(tuning_out_dir).apply(args.tuning)
     env = env_soft.Environment(out_dir)
     hw = env_hw.Hardware(out_dir, args.monitoring_config)
 
@@ -91,6 +91,12 @@ def parse_options():
         "--output-directory",
         help="Specify the directory used to put all results and collected information",
     )
+    parser.add_argument(
+        "--tuning",
+        action=argparse.BooleanOptionalAction,
+        default=True,
+        help="Enable or disable tuning: this is useful when you want to test the system as-is.",
+    )
     return parser.parse_args()
 
 

hwbench/tuning/setup.py

@@ -3,13 +3,17 @@
 from .scheduler import MQDeadlineIOScheduler
 from .turbo_boost import IntelTurboBoost, TurboBoost
 from ..utils.external import External_Simple
+from ..utils.hwlogging import tunninglog
 
 
 class Tuning:
     def __init__(self, out_dir):
         self.out_dir = out_dir
 
-    def apply(self):
+    def apply(self, apply_tuning: bool):
+        if not apply_tuning:
+            tunninglog().info("Tunning has been disabled on the hwbench command line")
+            return
         External_Simple(self.out_dir, ["sync"])
         SysctlDropCaches(self.out_dir).run()
         PerformancePowerProfile(self.out_dir).run()