[easy] Add option for profiling backend in inference benchmark (#116187)

Some misc fixes, also added option for experiment name to add to result table

Pull Request resolved: https://github.com/pytorch/pytorch/pull/116187
Approved by: https://github.com/albanD
ghstack dependencies: #115286

benchmarks/inference/process_metrics.py

@@ -13,6 +13,7 @@ import pandas as pd
 if __name__ == "__main__":
     parser = argparse.ArgumentParser(description="Parse output files")
     parser.add_argument("--csv", type=str, help="Path to csv file")
+    parser.add_argument("--name", type=str, help="Name of experiment")
     args = parser.parse_args()
 
     input_csv = "./results/" + args.csv
@@ -37,13 +38,13 @@ if __name__ == "__main__":
         if write_header:
             f.write(f"## Batch Size {batch_size} Compile {compile}\n\n")
             f.write(
-                "| Warmup_latency (s) | Average_latency (s) | Throughput (samples/sec) | GPU Utilization (%) |\n"
+                "| Experiment | Warmup_latency (s) | Average_latency (s) | Throughput (samples/sec) | GPU Utilization (%) |\n"
             )
             f.write(
-                "| ------------------ | ------------------- | ------------------------ | ------------------- |\n"
+                "| ---------- | ------------------ | ------------------- | ------------------------ | ------------------- |\n"
             )
 
-        line = "|"
+        line = f"| {args.name} |"
         for metric in metrics:
             line += f" {means[metric]:.3f} +/- {stds[metric]:.3f} |"
         f.write(line + "\n")

benchmarks/inference/runner.sh

@@ -1,5 +1,11 @@
 #!/bin/bash
 
+if [ $# -ne 1 ]; then
+  echo "Usage: $0 {experiment_name}"
+  exit 1
+fi
+
+experiment_name="$1"
 benchmark_script="server.py"
 checkpoint_file="resnet18-f37072fd.pth"
 downloaded_checkpoint=false
@@ -30,7 +36,7 @@ for batch_size in "${batch_size_values[@]}"; do
         python -W ignore "$benchmark_script" --batch_size "$batch_size" --output_file "$output_file" --no-compile
       fi
     done
-    python process_metrics.py --csv "$output_file"
+    python process_metrics.py --csv "$output_file" --name "$experiment_name"
     rm "./results/$output_file"
   done
 done

benchmarks/inference/server.py

@@ -210,6 +210,9 @@ if __name__ == "__main__":
         "--compile", default=True, action=argparse.BooleanOptionalAction
     )
     parser.add_argument("--output_file", type=str, default="output.csv")
+    parser.add_argument(
+        "--profile", default=False, action=argparse.BooleanOptionalAction
+    )
     args = parser.parse_args()
 
     downloaded_checkpoint = False
@@ -247,6 +250,15 @@ if __name__ == "__main__":
         )
 
         frontend.start()
+
+        if args.profile:
+
+            def trace_handler(prof):
+                prof.export_chrome_trace("trace.json")
+
+            with torch.profiler.profile(on_trace_ready=trace_handler) as prof:
+                asyncio.run(backend.run())
+        else:
             asyncio.run(backend.run())
 
         frontend.join()