ReactorBenchmarks: Sweep coroutine perf.

Time the Fibonacci function in iterations of 8^N, where N=[0..8] Bug: b/148660286 Change-Id: Ief391a7f6181c5907de128f5c983ac32aeadfae0 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/40949Tested-by: Ben Clayton <bclayton@google.com> Reviewed-by: Alexis Hétu <sugoi@google.com>

ReactorBenchmarks: Sweep coroutine perf.
534d12cd · Ben Clayton · 693b8a8d · 534d12cd
Commit 534d12cd authored Feb 06, 2020 by Ben Clayton
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ReactorBenchmarks.cpp src/Reactor/ReactorBenchmarks.cpp +9 -2

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--- a/src/Reactor/ReactorBenchmarks.cpp
+++ b/src/Reactor/ReactorBenchmarks.cpp
@@ -27,7 +27,7 @@ public:
 	void TearDown(const ::benchmark::State &state) {}
 };

-BENCHMARK_F(Coroutines, Fibonacci)
+BENCHMARK_DEFINE_F(Coroutines, Fibonacci)
 (benchmark::State &state)
 {
 	using namespace rr;
@@ -55,9 +55,16 @@ BENCHMARK_F(Coroutines, Fibonacci)

 	auto coroutine = function();

+	const auto iterations = state.range(0);
+
 	int out = 0;
 	for(auto _ : state)
 	{
-		coroutine->await(out);
+		for(int64_t i = 0; i < iterations; i++)
+		{
+			coroutine->await(out);
+		}
 	}
 }
+
+BENCHMARK_REGISTER_F(Coroutines, Fibonacci)->RangeMultiplier(8)->Range(1, 0x1000000)->ArgName("iterations");