diff --git a/include/pmu.h b/include/pmu.h
index 1f97d365b0a88e8c0676dcf4b18a6ff83eaf7512..92c1c54df4afd27c3b4961c82d27345bdc231336 100644
--- a/include/pmu.h
+++ b/include/pmu.h
@@ -164,9 +164,10 @@ int PmuDisable(int pd);
  * Collect <milliseconds> milliseconds. If <milliseconds> is equal to - 1 and the PID list is not empty, the collection
  * is performed until all processes are complete.
  * @param milliseconds
+ * @param interval internal collect period. Unit: millisecond. Must be larger than or equal to 100.
  * @return int
  */
-int PmuCollect(int pd, int milliseconds);
+int PmuCollect(int pd, int milliseconds, unsigned interval);
 
 /**
  * @brief
diff --git a/pmu/pmu.cpp b/pmu/pmu.cpp
index 2f05b57d54b198f5d586000c24e52644f5a3f54a..48208d963caed35dd3a0b365a6b4cdb0e4bd7408 100644
--- a/pmu/pmu.cpp
+++ b/pmu/pmu.cpp
@@ -249,9 +249,8 @@ int PmuAppendData(struct PmuData *fromData, struct PmuData **toData)
     return toLen;
 }
 
-static int DoCollectCounting(int pd, int milliseconds)
+static int DoCollectCounting(int pd, int milliseconds, unsigned collectInterval)
 {
-    constexpr int collectInterval = 100;
     constexpr int usecPerMilli = 1000;
     // Collect every <collectInterval> milliseconds,
     // and read data from ring buffer.
@@ -284,9 +283,8 @@ static int DoCollectCounting(int pd, int milliseconds)
     return SUCCESS;
 }
 
-static int DoCollectNonCounting(int pd, int milliseconds)
+static int DoCollectNonCounting(int pd, int milliseconds, unsigned collectInterval)
 {
-    constexpr int collectInterval = 100;
     constexpr int usecPerMilli = 1000;
     // Collect every <collectInterval> milliseconds,
     // and read data from ring buffer.
@@ -325,15 +323,15 @@ static int DoCollectNonCounting(int pd, int milliseconds)
     return SUCCESS;
 }
 
-static int DoCollect(int pd, int milliseconds)
+static int DoCollect(int pd, int milliseconds, unsigned interval)
 {
     if (PmuList::GetInstance()->GetTaskType(pd) == COUNTING) {
-        return DoCollectCounting(pd, milliseconds);
+        return DoCollectCounting(pd, milliseconds, interval);
     }
-    return DoCollectNonCounting(pd, milliseconds);
+    return DoCollectNonCounting(pd, milliseconds, interval);
 }
 
-int PmuCollect(int pd, int milliseconds)
+int PmuCollect(int pd, int milliseconds, unsigned interval)
 {
     int err = SUCCESS;
     string errMsg = "";
@@ -346,11 +344,15 @@ int PmuCollect(int pd, int milliseconds)
             New(LIBPERF_ERR_INVALID_TIME);
             return -1;
         }
+        if (interval < 100) {
+            New(LIBPERF_ERR_INVALID_TIME);
+            return -1;
+        }
 
         pdMutex.tryLock(pd);
         runningStatus[pd] = true;
         pdMutex.releaseLock(pd);
-        err = DoCollect(pd, milliseconds);
+        err = DoCollect(pd, milliseconds, interval);
     } catch (std::bad_alloc&) {
         err = COMMON_ERR_NOMEM;
     } catch (exception& ex) {
diff --git a/test/test_perf/test_api.cpp b/test/test_perf/test_api.cpp
index 2a807e70c216f8ed59152b3759fe8411623b4024..800b9415703243693da896590eee28d6d9c1a9ba 100644
--- a/test/test_perf/test_api.cpp
+++ b/test/test_perf/test_api.cpp
@@ -132,6 +132,7 @@ protected:
     static const unsigned numEvt = 1;
     static const string expectFilename;
     static const unsigned expectLine = 17;
+    static const unsigned collectInterval = 100;
 
     int *cpuList = nullptr;
     char *evtList[numEvt] = {"cycles"};
@@ -157,7 +158,7 @@ TEST_F(TestAPI, SampleCollectSuccess)
 {
     auto attr = GetPmuAttribute();
     pd = PmuOpen(SAMPLING, &attr);
-    int ret = PmuCollect(pd, 10);
+    int ret = PmuCollect(pd, 10, collectInterval);
     ASSERT_TRUE(ret == SUCCESS);
 }
 
@@ -165,7 +166,7 @@ TEST_F(TestAPI, SampleReadSuccess)
 {
     auto attr = GetPmuAttribute();
     pd = PmuOpen(SAMPLING, &attr);
-    int ret = PmuCollect(pd, 1000);
+    int ret = PmuCollect(pd, 1000, collectInterval);
     int len = PmuRead(pd, &data);
     EXPECT_TRUE(data != nullptr);
     ASSERT_TRUE(HasExpectSource(data, len));
@@ -183,7 +184,7 @@ TEST_F(TestAPI, SpeCollectSuccess)
     auto attr = GetSpeAttribute();
     pd = PmuOpen(SPE_SAMPLING, &attr);
     ASSERT_TRUE(pd != -1);
-    int ret = PmuCollect(pd, 10);
+    int ret = PmuCollect(pd, 10, collectInterval);
     ASSERT_TRUE(ret == SUCCESS);
 }
 
@@ -191,7 +192,7 @@ TEST_F(TestAPI, SpeReadSuccess)
 {
     auto attr = GetSpeAttribute();
     pd = PmuOpen(SPE_SAMPLING, &attr);
-    int ret = PmuCollect(pd, 1000);
+    int ret = PmuCollect(pd, 1000, collectInterval);
     ASSERT_TRUE(pd != -1);
     int len = PmuRead(pd, &data);
     EXPECT_TRUE(data != nullptr);
@@ -248,7 +249,7 @@ TEST_F(TestAPI, SampleCollectBadEvt)
 
 TEST_F(TestAPI, SampleCollectBadPd)
 {
-    auto ret = PmuCollect(3, 1000);
+    auto ret = PmuCollect(3, 1000, collectInterval);
     ASSERT_EQ(Perrorno(), LIBPERF_ERR_INVALID_PD);
 }
 
@@ -269,7 +270,7 @@ TEST_F(TestAPI, SampleSystem)
     attr.pidList = nullptr;
     attr.numPid = 0;
     pd = PmuOpen(SAMPLING, &attr);
-    int ret = PmuCollect(pd, 100);
+    int ret = PmuCollect(pd, 100, collectInterval);
     int len = PmuRead(pd, &data);
     EXPECT_TRUE(data != nullptr);
     ASSERT_TRUE(HasExpectSource(data, len));
@@ -282,7 +283,7 @@ TEST_F(TestAPI, SpeSystem)
     attr.numPid = 0;
     pd = PmuOpen(SPE_SAMPLING, &attr);
     ASSERT_TRUE(pd != -1);
-    int ret = PmuCollect(pd, 1000);
+    int ret = PmuCollect(pd, 1000, collectInterval);
     int len = PmuRead(pd, &data);
     EXPECT_TRUE(data != nullptr);
     ASSERT_TRUE(HasExpectSymbol(data, len));
@@ -300,7 +301,7 @@ TEST_F(TestAPI, StopSuccess)
     pd = PmuOpen(SAMPLING, &attr);
     thread th(Stop, pd);
     auto start = GetCurrentTime();
-    int ret = PmuCollect(pd, 1000 * 10);
+    int ret = PmuCollect(pd, 1000 * 10, collectInterval);
     auto end = GetCurrentTime();
     th.join();
     ASSERT_LE(end - start, 5000);
@@ -318,7 +319,7 @@ TEST_F(TestAPI, CollectInvalidTime)
 {
     auto attr = GetPmuAttribute();
     pd = PmuOpen(SAMPLING, &attr);
-    int ret = PmuCollect(pd, -2);
+    int ret = PmuCollect(pd, -2, collectInterval);
     ASSERT_EQ(Perrorno(), LIBPERF_ERR_INVALID_TIME);
 }
 
diff --git a/test/test_symbol/CMakeLists.txt b/test/test_symbol/CMakeLists.txt
index 0b380738c4296b7ed00a3b5a9398708c750615f0..303c01f897bae84d2c02de5bd6fe3689fd3e8e54 100644
--- a/test/test_symbol/CMakeLists.txt
+++ b/test/test_symbol/CMakeLists.txt
@@ -1,6 +1,7 @@
 include_directories(${CMAKE_CURRENT_LIST_DIR}/../../symbol)
 include_directories(${CMAKE_CURRENT_LIST_DIR}/../../util)
 include_directories(${PROJECT_TOP_DIR}/include)
+set(CMAKE_CXX_STANDARD 14)
 aux_source_directory(. SOURCE_SRC)
 add_executable(test_symbol ${SOURCE_SRC} ${CMAKE_CURRENT_LIST_DIR}/../../util/pcerr.cpp)
 target_link_libraries(test_symbol sym gtest m gmock gtest_main elf_static dwarf_static pthread)