| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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. |
| |
| #include "kudu/util/throttler.h" |
| |
| #include <gtest/gtest.h> |
| |
| #include "kudu/util/monotime.h" |
| #include "kudu/util/test_util.h" |
| |
| namespace kudu { |
| |
| class ThrottlerTest : public KuduTest { |
| }; |
| |
| TEST_F(ThrottlerTest, TestOpThrottle) { |
| // Check operation rate throttling |
| MonoTime now = MonoTime::Now(); |
| Throttler t0(now, 1000, 1000*1000, 1); |
| // Fill up bucket |
| now += MonoDelta::FromMilliseconds(2000); |
| // Check throttle behavior for 1 second. |
| for (int p = 0; p < 10; p++) { |
| for (int i = 0; i < 100; i++) { |
| ASSERT_TRUE(t0.Take(now, 1, 1)); |
| } |
| ASSERT_FALSE(t0.Take(now, 1, 1)); |
| now += MonoDelta::FromMilliseconds(100); |
| } |
| } |
| |
| TEST_F(ThrottlerTest, TestIOThrottle) { |
| // Check operation rate throttling |
| MonoTime now = MonoTime::Now(); |
| Throttler t0(now, 50000, 1000*1000, 1); |
| // Fill up bucket |
| now += MonoDelta::FromMilliseconds(2000); |
| // Check throttle behavior for 1 second. |
| for (int p = 0; p < 10; p++) { |
| for (int i = 0; i < 100; i++) { |
| ASSERT_TRUE(t0.Take(now, 1, 1000)); |
| } |
| ASSERT_FALSE(t0.Take(now, 1, 1000)); |
| now += MonoDelta::FromMilliseconds(100); |
| } |
| } |
| |
| TEST_F(ThrottlerTest, TestBurst) { |
| // Check IO rate throttling |
| MonoTime now = MonoTime::Now(); |
| Throttler t0(now, 2000, 1000*1000, 5); |
| // Fill up bucket |
| now += MonoDelta::FromMilliseconds(2000); |
| for (int i = 0; i < 100; i++) { |
| now += MonoDelta::FromMilliseconds(1); |
| ASSERT_TRUE(t0.Take(now, 1, 5000)); |
| } |
| ASSERT_TRUE(t0.Take(now, 1, 100000)); |
| ASSERT_FALSE(t0.Take(now, 1, 1)); |
| } |
| |
| } // namespace kudu |