Remove test_gather_benchmark (#6983)

python/ray/experimental/test/async_test.py

@@ -46,42 +46,6 @@ def test_gather(init):
     assert all(a == b for a, b in zip(results, ray.get(tasks)))
 
 
-def test_gather_benchmark(init):
-    @ray.remote
-    def f(n):
-        time.sleep(0.001 * n)
-        return 42
-
-    async def test_async():
-        sum_time = 0.
-        for _ in range(50):
-            tasks = [f.remote(n) for n in range(20)]
-            start = time.time()
-            futures = [async_api.as_future(obj_id) for obj_id in tasks]
-            await asyncio.gather(*futures)
-            sum_time += time.time() - start
-        return sum_time
-
-    def baseline():
-        sum_time = 0.
-        for _ in range(50):
-            tasks = [f.remote(n) for n in range(20)]
-            start = time.time()
-            ray.get(tasks)
-            sum_time += time.time() - start
-        return sum_time
-
-    # warm up
-    baseline()
-    # async get
-    sum_time_1 = asyncio.get_event_loop().run_until_complete(test_async())
-    # get
-    sum_time_2 = baseline()
-
-    # Ensure the new implementation is not too slow.
-    assert sum_time_2 * 1.2 > sum_time_1
-
-
 def test_wait(init):
     loop = asyncio.get_event_loop()
     tasks = gen_tasks()