Initial commit

Change-Id: I4bf1707bd3dfeadf2c17b0a7daff372b1925ebbd

unit_tests/perf_tests/perf_test_utils.cpp

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+/*
+ * Copyright (c) 2017, Intel Corporation
+ *
+ * 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 "perf_test_utils.h"
+#include "runtime/helpers/aligned_memory.h"
+#include "runtime/helpers/hash.h"
+
+#include <fstream>
+#include <string>
+
+using namespace OCLRT;
+using namespace std;
+
+const char *perfLogPath = "perf_logs/";
+
+// Global reference time
+long long refTime = 0;
+
+void setReferenceTime() {
+    if (refTime == 0) {
+        Timer t1, t2, t3;
+        long long time1 = 0;
+        long long time2 = 0;
+        long long time3 = 0;
+
+        Timer::setFreq();
+        void *bufferDst = alignedMalloc(128 * 4096, 4096);
+        void *bufferSrc1 = alignedMalloc(128 * 4096, 4096);
+        void *bufferSrc2 = alignedMalloc(128 * 4096, 4096);
+        void *bufferSrc3 = alignedMalloc(128 * 4096, 4096);
+        t1.start();
+        memset(bufferSrc1, 0, 128 * 4096);
+        memcpy(bufferDst, bufferSrc1, 128 * 4096);
+        t1.end();
+
+        t2.start();
+        memset(bufferSrc2, 1, 128 * 4096);
+        memcpy(bufferDst, bufferSrc2, 128 * 4096);
+        t2.end();
+
+        t3.start();
+        memset(bufferSrc3, 2, 128 * 4096);
+        memcpy(bufferDst, bufferSrc3, 128 * 4096);
+        t3.end();
+
+        time1 = t1.get();
+        time2 = t2.get();
+        time3 = t3.get();
+
+        refTime = majorityVote(time1, time2, time3);
+
+        alignedFree(bufferDst);
+        alignedFree(bufferSrc1);
+        alignedFree(bufferSrc2);
+        alignedFree(bufferSrc3);
+    }
+}
+
+bool getTestRatio(uint64_t hash, double &ratio) {
+
+    ifstream file;
+    string filename(perfLogPath);
+    double data = 0.0;
+
+    filename.append(std::to_string(hash));
+
+    file.open(filename);
+    if (file.is_open()) {
+        file >> data;
+        ratio = data;
+        file.close();
+        return true;
+    }
+    ratio = 0.0;
+    return false;
+}
+
+bool saveTestRatio(uint64_t hash, double ratio) {
+
+    ofstream file;
+    string filename(perfLogPath);
+    double data = 0.0;
+
+    filename.append(std::to_string(hash));
+
+    file.open(filename);
+    if (file.is_open()) {
+        file << ratio;
+        file.close();
+        return true;
+    }
+    return false;
+}
+
+bool isInRange(double data, double reference, double multiplier) {
+    double lower = reference / multiplier;
+    double higher = reference * multiplier;
+
+    if ((data >= lower) && (data <= higher)) {
+        return true;
+    }
+    return false;
+}
+
+bool isLowerThanReference(double data, double reference, double multiplier) {
+
+    double higher = multiplier * reference;
+
+    if (data <= higher) {
+        return true;
+    }
+    return false;
+}
+
+bool updateTestRatio(uint64_t hash, double ratio) {
+
+    double oldRatio = 0.0;
+
+    if (getTestRatio(hash, oldRatio)) {
+        if (oldRatio != 0.0) {
+
+            if (isInRange(ratio, oldRatio, 2.000)) {
+                double newRatio = (0.8000 * oldRatio + 0.2000 * ratio);
+                if (newRatio < 0.8 * oldRatio)
+                    return false;
+                saveTestRatio(hash, newRatio);
+                return true;
+            }
+        }
+    } else {
+        saveTestRatio(hash, ratio);
+    }
+    return false;
+}