move benchmarks to separate directory

Summary: Move benchmarks to a separate directory as tests/ is getting big.

Reviewed By: nikhilaravi

Differential Revision: D32885462

fbshipit-source-id: a832662a494ee341ab77d95493c95b0af0a83f43

tests/benchmarks/bm_raymarching.py

@@ -0,0 +1,23 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
+import itertools
+
+from fvcore.common.benchmark import benchmark
+from pytorch3d.renderer import AbsorptionOnlyRaymarcher, EmissionAbsorptionRaymarcher
+from test_raymarching import TestRaymarching
+
+
+def bm_raymarching() -> None:
+    case_grid = {
+        "raymarcher_type": [EmissionAbsorptionRaymarcher, AbsorptionOnlyRaymarcher],
+        "n_rays": [10, 1000, 10000],
+        "n_pts_per_ray": [10, 1000, 10000],
+    }
+    test_cases = itertools.product(*case_grid.values())
+    kwargs_list = [dict(zip(case_grid.keys(), case)) for case in test_cases]
+
+    benchmark(TestRaymarching.raymarcher, "RAYMARCHER", kwargs_list, warmup_iters=1)