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_sample_pdf.py

@@ -0,0 +1,37 @@
+# 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.
+
+from itertools import product
+
+from fvcore.common.benchmark import benchmark
+from test_sample_pdf import TestSamplePDF
+
+
+def bm_sample_pdf() -> None:
+
+    backends = ["python_cuda", "cuda", "python_cpu", "cpu"]
+
+    kwargs_list = []
+    sample_counts = [64]
+    batch_sizes = [1024, 10240]
+    bin_counts = [62, 600]
+    test_cases = product(backends, sample_counts, batch_sizes, bin_counts)
+    for case in test_cases:
+        backend, n_samples, batch_size, n_bins = case
+        kwargs_list.append(
+            {
+                "backend": backend,
+                "n_samples": n_samples,
+                "batch_size": batch_size,
+                "n_bins": n_bins,
+            }
+        )
+
+    benchmark(TestSamplePDF.bm_fn, "SAMPLE_PDF", kwargs_list, warmup_iters=1)
+
+
+if __name__ == "__main__":
+    bm_sample_pdf()