benchmark:Measure virtio-blk read rate

Bug: 236123069
Test: atest MicrodroidBenchmarks
Change-Id: Ia46ea8d1b4425fa280171adcce7f82a76f1a329e
diff --git a/tests/benchmark/assets/vm_config.json b/tests/benchmark/assets/vm_config.json
index 67e3d21..e8f43e0 100644
--- a/tests/benchmark/assets/vm_config.json
+++ b/tests/benchmark/assets/vm_config.json
@@ -4,7 +4,10 @@
   },
   "task": {
     "type": "microdroid_launcher",
-    "command": "MicrodroidBenchmarkNativeLib.so"
+    "command": "MicrodroidBenchmarkNativeLib.so",
+    "args": [
+      "no_io"
+    ]
   },
   "export_tombstones": true
 }