diff --git a/benchmarks/ddb.pyon b/benchmarks/ddb.pyon
new file mode 100644
index 000000000..7dce005a0
--- /dev/null
+++ b/benchmarks/ddb.pyon
@@ -0,0 +1,46 @@
+{
+    "comm": {
+        "type": "local",
+        "module": "artiq.coredevice.comm_serial",
+        "class": "Comm",
+        "arguments": {}
+    },
+    "core": {
+        "type": "local",
+        "module": "artiq.coredevice.core",
+        "class": "Core",
+        "arguments": {}
+    },
+
+    "pmt0": {
+        "type": "local",
+        "module": "artiq.coredevice.rtio",
+        "class": "RTIOIn",
+        "arguments": {"channel": 0}
+    },
+    "pmt1": {
+        "type": "local",
+        "module": "artiq.coredevice.rtio",
+        "class": "RTIOIn",
+        "arguments": {"channel": 1}
+    },
+
+    "ttl0": {
+        "type": "local",
+        "module": "artiq.coredevice.rtio",
+        "class": "RTIOOut",
+        "arguments": {"channel": 2}
+    },
+    "ttl1": {
+        "type": "local",
+        "module": "artiq.coredevice.rtio",
+        "class": "RTIOOut",
+        "arguments": {"channel": 3}
+    },
+    "ttl2": {
+        "type": "local",
+        "module": "artiq.coredevice.rtio",
+        "class": "RTIOOut",
+        "arguments": {"channel": 4}
+    },
+}
diff --git a/benchmarks/pdb.pyon b/benchmarks/pdb.pyon
new file mode 100644
index 000000000..0967ef424
--- /dev/null
+++ b/benchmarks/pdb.pyon
@@ -0,0 +1 @@
+{}