Benchmark copy of data from one pool to another pool either in

one or both directions. Users can enumerate the pools reported
  by system to specify which pools serve as source / destination

Change-Id: I8e6d0adb3743b3328dd3ce9152762ca840ea613b

rocrtst/samples/rocm_async/hsatimer.cpp

@@ -0,0 +1,188 @@
+#include "hsatimer.hpp"
+
+#define NANOSECONDS_PER_SECOND 1000000000
+
+PerfTimer::PerfTimer() {
+  freq_in_100mhz = MeasureTSCFreqHz();
+}
+
+PerfTimer::~PerfTimer() {
+  while (!_timers.empty()) {
+    Timer *temp = _timers.back();
+    _timers.pop_back();
+    delete temp;
+  }
+}
+
+// Create a new timer instance and return its index
+int PerfTimer::CreateTimer() {
+
+  Timer *newTimer = new Timer;
+  newTimer->_start = 0.0;
+  newTimer->_clocks = 0.0;
+
+  #ifdef _WIN32
+  QueryPerformanceFrequency((LARGE_INTEGER *)&newTimer->_freq);
+  #endif
+
+  #ifdef  __linux__
+  newTimer->_freq = NANOSECONDS_PER_SECOND;
+  #endif
+
+  // Save the timer object in timer list
+  _timers.push_back(newTimer);
+  return (int)(_timers.size() - 1);
+}
+
+int PerfTimer::StartTimer(int index) {
+
+  if (index >= (int)_timers.size()) {
+    Error("Cannot reset timer. Invalid handle.");
+    return HSA_FAILURE;
+  }
+
+  #ifdef _WIN32
+    // General Windows timing method
+    #ifndef _AMD
+      long long tmpStart;
+      QueryPerformanceCounter((LARGE_INTEGER *)&(tmpStart));
+  _   timers[index]->_start = (double)tmpStart;
+    // AMD Windows timing method
+    #else
+    #endif
+  #endif
+
+  #ifdef  __linux__
+    // General Linux timing method
+    #ifndef _AMD
+      struct timespec s;
+      clock_gettime(CLOCK_MONOTONIC, &s);
+      _timers[index]->_start =
+      (long long)s.tv_sec * NANOSECONDS_PER_SECOND + (long long)s.tv_nsec;
+    // AMD Linux timing method
+    #else
+      unsigned int unused;
+    _timers[index]->_start = __rdtscp(&unused);
+    #endif
+  #endif
+
+  return HSA_SUCCESS;
+}
+
+int PerfTimer::StopTimer(int index) {
+
+  long long n = 0;
+  if (index >= (int)_timers.size()) {
+    Error("Cannot reset timer. Invalid handle.");
+    return HSA_FAILURE;
+  }
+  
+  #ifdef _WIN32
+    #ifndef _AMD
+      long long n1;
+      QueryPerformanceCounter((LARGE_INTEGER *)&(n1));
+      n = n1;
+    // AMD Window Timing
+    #else
+    #endif
+  #endif
+
+  #ifdef  __linux__
+    // General Linux timing method
+    #ifndef _AMD
+      struct timespec s;
+      clock_gettime(CLOCK_MONOTONIC, &s);
+      n = (long long)s.tv_sec * NANOSECONDS_PER_SECOND + (long long)s.tv_nsec;
+    // AMD Linux timing
+    #else
+      unsigned int unused;
+      n = __rdtscp(&unused);
+    #endif
+  #endif
+
+  n -= _timers[index]->_start;
+  _timers[index]->_start = 0;
+
+  #ifndef _AMD
+    _timers[index]->_clocks += n;
+  #endif
+
+  #ifdef  __linux__
+    //_timers[index]->_clocks += 10 * n /freq_in_100mhz;      // unit is ns
+    _timers[index]->_clocks += 1.0E-6 * 10 * n / freq_in_100mhz;  // convert to ms
+    // cout << "_AMD is enabled!!!" << endl;
+  #endif
+
+  return HSA_SUCCESS;
+}
+
+void PerfTimer::Error(string str) { cout << str << endl; }
+
+double PerfTimer::ReadTimer(int index) {
+
+  if (index >= (int)_timers.size()) {
+    Error("Cannot read timer. Invalid handle.");
+    return HSA_FAILURE;
+  }
+
+  double reading = double(_timers[index]->_clocks);
+
+  reading = double(reading / _timers[index]->_freq);
+
+  return reading;
+}
+
+void PerfTimer::ResetTimer(int index) {
+  
+  // Check if index value is over the timer's size
+  if (index >= (int)_timers.size()) {
+    Error("Invalid index value\n");
+    exit(1);
+  }
+
+  _timers[index]->_clocks = 0.0;
+  _timers[index]->_start = 0.0;
+}
+
+uint64_t PerfTimer::CoarseTimestampUs() {
+  
+  #ifdef _WIN32
+    uint64_t freqHz, ticks;
+    QueryPerformanceFrequency((LARGE_INTEGER *)&freqHz);
+    QueryPerformanceCounter((LARGE_INTEGER *)&ticks);
+
+    // Scale numerator and divisor until (ticks * 1000000) fits in uint64_t.
+    while (ticks > (1ULL << 44)) {
+      ticks /= 16;
+      freqHz /= 16;
+    }
+
+    return (ticks * 1000000) / freqHz;
+  #endif
+
+  #ifdef  __linux__
+    struct timespec ts;
+    clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
+    return uint64_t(ts.tv_sec) * 1000000 + ts.tv_nsec / 1000;
+  #endif
+}
+
+uint64_t PerfTimer::MeasureTSCFreqHz() {
+  
+  // Make a coarse interval measurement of TSC ticks for 1 gigacycles.
+  unsigned int unused;
+  uint64_t tscTicksEnd;
+
+  uint64_t coarseBeginUs = CoarseTimestampUs();
+  uint64_t tscTicksBegin = __rdtscp(&unused);
+  do {
+    tscTicksEnd = __rdtscp(&unused);
+  } while (tscTicksEnd - tscTicksBegin < 1000000000);
+
+  uint64_t coarseEndUs = CoarseTimestampUs();
+
+  // Compute the TSC frequency and round to nearest 100MHz.
+  uint64_t coarseIntervalNs = (coarseEndUs - coarseBeginUs) * 1000;
+  uint64_t tscIntervalTicks = tscTicksEnd - tscTicksBegin;
+  return (tscIntervalTicks * 10 + (coarseIntervalNs / 2)) / coarseIntervalNs;
+}