Support performance tests

Support performance tests while direct tests commands keep unchanged.
To build performance tests, run "make build_perf".
To run all performance testis, run "make perf".
To run specific tests, for example, run
/usr/bin/ctest -C performance -R performance_tests/perfDispatch --verbose
To run individual test, for example, run
performance_tests/memory/hipPerfMemMallocCpyFree

Change-Id: I168c1b9ef1ec21b392d48648d0c71e8fbd37d57b

perftests/memory/hipPerfMemMallocCpyFree.cpp

@@ -0,0 +1,114 @@
+/*
+Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#include "test_common.h"
+#include <iostream>
+#include <time.h>
+
+/* HIT_START
+ * BUILD: %t %s ../../src/test_common.cpp EXCLUDE_HIP_PLATFORM nvcc
+ * TEST: %t
+ * HIT_END
+ */
+
+#define NUM_SIZE 19  //size up to 16M
+#define NUM_ITER 500 //Total GPU memory up to 16M*500=8G
+
+void valSet(int* A, int val, size_t size) {
+    size_t len = size / sizeof(int);
+    for (int i = 0; i < len; i++) {
+        A[i] = val;
+    }
+}
+
+void setup(size_t *size, const int num, int **pA) {
+    std::cout << "size: ";
+    for (int i = 0; i < num; i++) {
+        size[i] = 1 << (i + 6);
+        std::cout << size[i] << " ";
+    }
+    std::cout << std::endl;
+    *pA = (int*)malloc(size[num - 1]);
+    valSet(*pA, 1, size[num - 1]);
+}
+
+void testInit(size_t size, int *A) {
+    int *Ad;
+    clock_t start = clock();
+    hipMalloc(&Ad, size); //hip::init() will be called
+    clock_t end = clock();
+    double uS = (end - start) * 1000000. / CLOCKS_PER_SEC;
+    std::cout << "Initial" << std::endl;
+    std::cout << "hipMalloc(" << size << ") cost " << uS << "us" << std::endl;
+
+    start = clock();
+    hipMemcpy(Ad, A, size, hipMemcpyHostToDevice);
+    hipDeviceSynchronize();
+    end = clock();
+    uS = (end - start) * 1000000. / CLOCKS_PER_SEC;
+    std::cout << "hipMemcpy(" << size << ") cost " << uS << "us" << std::endl;
+
+    start = clock();
+    hipFree(Ad);
+    end = clock();
+    uS = (end - start) * 1000000. / CLOCKS_PER_SEC;
+    std::cout << "hipFree(" << size << ") cost " << uS << "us" << std::endl;
+}
+
+int main() {
+    double uS;
+    clock_t start, end;
+    size_t size[NUM_SIZE] = { 0 };
+    int *Ad[NUM_ITER] = { nullptr };
+    int *A;
+
+    setup(size, NUM_SIZE, &A);
+    testInit(size[0], A);
+
+    for (int i = 0; i < NUM_SIZE; i++) {
+        std::cout << size[i] << std::endl;
+        start = clock();
+        for (int j = 0; j < NUM_ITER; j++) {
+            HIPCHECK(hipMalloc(&Ad[j], size[i]));
+        }
+        end = clock();
+        uS = (end - start) * 1000000. / (NUM_ITER * CLOCKS_PER_SEC);
+        std::cout << "hipMalloc(" << size[i] << ") cost " << uS << "us" << std::endl;
+
+        start = clock();
+        for (int j = 0; j < NUM_ITER; j++) {
+            HIPCHECK(hipMemcpy(Ad[j], A, size[i], hipMemcpyHostToDevice));
+        }
+        hipDeviceSynchronize();
+        end = clock();
+        uS = (end - start) * 1000000. / (NUM_ITER * CLOCKS_PER_SEC);
+        std::cout << "hipMemcpy(" << size[i] << ") cost " << uS << "us" << std::endl;
+
+        start = clock();
+        for (int j = 0; j < NUM_ITER; j++) {
+            HIPCHECK(hipFree(Ad[j]));
+            Ad[j] = nullptr;
+        }
+        end = clock();
+        double uS = (end - start) * 1000000. / (NUM_ITER * CLOCKS_PER_SEC);
+        std::cout << "hipFree(" << size[i] << ") cost " << uS << "us" << std::endl;
+    }
+    free(A);
+    passed();
+}