2 * Copyright 2017 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <folly/MallctlHelper.h>
18 #include <folly/Malloc.h>
19 #include <folly/init/Init.h>
20 #include <folly/portability/GTest.h>
22 #ifdef FOLLY_HAVE_LIBJEMALLOC
23 #include <jemalloc/jemalloc.h>
26 using namespace folly;
28 #ifdef FOLLY_HAVE_LIBJEMALLOC
29 #if JEMALLOC_VERSION_MAJOR > 4
30 static constexpr char const* kDecayCmd = "arena.0.dirty_decay_ms";
31 const char* malloc_conf = "dirty_decay_ms:10";
33 static constexpr char const* kDecayCmd = "arena.0.decay_time";
34 const char* malloc_conf = "purge:decay,decay_time:10";
38 class MallctlHelperTest : public ::testing::Test {
40 void TearDown() override {
41 // Reset decay_time of arena 0 to 10 seconds.
42 ssize_t decayTime = 10;
43 EXPECT_NO_THROW(mallctlWrite(kDecayCmd, decayTime));
46 static ssize_t readArena0DecayTime() {
47 ssize_t decayTime = 0;
48 EXPECT_NO_THROW(mallctlRead(kDecayCmd, &decayTime));
53 TEST_F(MallctlHelperTest, valid_read) {
54 ssize_t decayTime = 0;
55 EXPECT_NO_THROW(mallctlRead(kDecayCmd, &decayTime));
56 EXPECT_EQ(10, decayTime);
59 TEST_F(MallctlHelperTest, invalid_read) {
60 ssize_t decayTime = 0;
61 EXPECT_THROW(mallctlRead("invalid", &decayTime), std::runtime_error);
62 EXPECT_EQ(0, decayTime);
65 TEST_F(MallctlHelperTest, valid_write) {
66 ssize_t decayTime = 20;
67 EXPECT_NO_THROW(mallctlWrite(kDecayCmd, decayTime));
68 EXPECT_EQ(20, readArena0DecayTime());
71 TEST_F(MallctlHelperTest, invalid_write) {
72 ssize_t decayTime = 20;
73 EXPECT_THROW(mallctlWrite("invalid", decayTime), std::runtime_error);
74 EXPECT_EQ(10, readArena0DecayTime());
77 TEST_F(MallctlHelperTest, valid_read_write) {
78 ssize_t oldDecayTime = 0;
79 ssize_t newDecayTime = 20;
80 EXPECT_NO_THROW(mallctlReadWrite(kDecayCmd, &oldDecayTime, newDecayTime));
81 EXPECT_EQ(10, oldDecayTime);
82 EXPECT_EQ(20, readArena0DecayTime());
85 TEST_F(MallctlHelperTest, invalid_read_write) {
86 ssize_t oldDecayTime = 0;
87 ssize_t newDecayTime = 20;
89 mallctlReadWrite("invalid", &oldDecayTime, newDecayTime),
91 EXPECT_EQ(0, oldDecayTime);
92 EXPECT_EQ(10, readArena0DecayTime());
95 TEST_F(MallctlHelperTest, valid_call) {
96 EXPECT_NO_THROW(mallctlCall("arena.0.decay"));
99 TEST_F(MallctlHelperTest, invalid_call) {
100 EXPECT_THROW(mallctlCall("invalid"), std::runtime_error);
103 int main(int argc, char** argv) {
104 ::testing::InitGoogleTest(&argc, argv);
106 return usingJEMalloc() ? RUN_ALL_TESTS() : 0;