feat: added benchmarks

Makefile

@@ -0,0 +1,35 @@
+UNITY_ASSETS := benchmarks/unity/Assets
+
+.PHONY: bench-image generate bench size gen-unity
+
+IMAGE := arpack-bench
+
+bench-image:
+	docker build -f Dockerfile.bench -t $(IMAGE) .
+
+generate:
+	go run ./cmd/arpack -in benchmarks/arpackmsg/messages.go -out-go benchmarks/arpackmsg
+	protoc --go_out=. --go_opt=paths=source_relative benchmarks/proto/move.proto
+
+generate-docker: bench-image
+	docker run --rm -v "$(PWD):/workspace" -w /workspace $(IMAGE) make generate
+
+bench:
+	go test ./benchmarks/... -bench=. -benchmem -count=1 -run=^$$
+
+size:
+	go test ./benchmarks/... -run=TestMessageSize -v
+
+bench-docker: bench-image
+	docker run --rm -v "$(PWD):/workspace" -w /workspace $(IMAGE) make bench
+
+gen-unity:
+	mkdir -p "$(UNITY_ASSETS)/Benchmarks"
+	go run ./cmd/arpack \
+		-in benchmarks/arpackmsg/messages.go \
+		-out-cs "$(UNITY_ASSETS)/Benchmarks/" \
+		-cs-namespace Arpack.Messages
+	protoc -I benchmarks/proto \
+		--csharp_out="$(UNITY_ASSETS)/Benchmarks/" \
+		benchmarks/proto/move.proto
+	@echo "Done. Attach BenchmarkRunner to a GameObject in SampleScene and press Play."