add a timing wrapper around model serialization

Signed-off-by: Spencer Schrock <[email protected]>

Author: spencerschrock

benchmarks/time_serialize.py

@@ -0,0 +1,54 @@
+# Copyright 2025 The Sigstore Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+"""Script for timing model serialization benchmarks."""
+
+import argparse
+import time
+
+import serialize
+
+
+def build_parser() -> argparse.ArgumentParser:
+    """Builds the command line parser to benchmark serializing models."""
+    parser = argparse.ArgumentParser(description="model benchmark data")
+
+    parser.add_argument("path", help="path to model")
+
+    parser.add_argument(
+        "--repeat",
+        help="how many times to repeat each model",
+        type=int,
+        default=6,
+    )
+
+    return parser
+
+
+if __name__ == "__main__":
+    paper_args = build_parser().parse_args()
+
+    args = serialize.build_parser().parse_args(
+        [paper_args.path, "--use_shards"]
+    )
+
+    print(paper_args.path)
+    for _ in range(paper_args.repeat):
+        st = time.time()
+        payload = serialize.run(args)
+        en = time.time()
+        hash = en - st
+
+        print(f"hash: {hash:0.4f}")