SWDEV-494221 - Remove unnecessary hipEventRecord

- Removed unnecessary hipEventRecord and fixed time calculation in
  hipPerfDispatchSpeed.cc where it was off by a factor of 1,000.

Change-Id: If538e1d236cf0e6d3c69caf7af53c9095d812ad6

perftests/dispatch/hipPerfDispatchSpeed.cpp

@@ -110,12 +110,7 @@ int main(int argc, char* argv[]) {
     {
         int openTest = test % testListSize;
         bool sleep = false;
-        bool doWarmup = false;
 
-        if ((test / testListSize) % 2)
-        {
-            doWarmup = true;
-        }
         if (test >= (testListSize * 2))
         {
             sleep = true;
@@ -124,24 +119,12 @@ int main(int argc, char* argv[]) {
         int threads = (bufSize_ / sizeof(float));
         int threads_per_block  = 64;
         int blocks = (threads/threads_per_block) + (threads % threads_per_block);
-        hipEvent_t start, stop;
 
-        // NULL stream check:
-        err = hipEventCreate(&start);
-        err = hipEventCreate(&stop);
-
-        CHECK_RESULT(err != hipSuccess, "hipEventCreate failed");
-
-        // Do a warm up event record and sync
-        hipEventRecord(start, NULL);
-        hipStreamSynchronize(0);
-
-        if (doWarmup)
-        {
-            hipLaunchKernelGGL(_dispatchSpeed, dim3(blocks), dim3(threads_per_block), 0, hipStream_t(0), srcBuffer);
-            err = hipDeviceSynchronize();
-            CHECK_RESULT(err != hipSuccess, "hipDeviceSynchronize failed");
-        }
+        // warmup
+        hipLaunchKernelGGL(_dispatchSpeed, dim3(blocks), dim3(threads_per_block),
+                           0, hipStream_t(0), srcBuffer);
+        err = hipDeviceSynchronize();
+        CHECK_RESULT(err != hipSuccess, "hipDeviceSynchronize failed");
 
         CPerfCounter timer;
 
@@ -149,9 +132,8 @@ int main(int argc, char* argv[]) {
         timer.Start();
         for (unsigned int i = 0; i < testList[openTest].iterations; i++)
         {
-            hipEventRecord(start, NULL);
-            hipLaunchKernelGGL(_dispatchSpeed, dim3(blocks), dim3(threads_per_block), 0, hipStream_t(0), srcBuffer);
-            hipEventRecord(stop, NULL);
+            hipLaunchKernelGGL(_dispatchSpeed, dim3(blocks), dim3(threads_per_block),
+                                0, hipStream_t(0), srcBuffer);
 
             if ((testList[openTest].flushEvery > 0) &&
                 (((i + 1) % testList[openTest].flushEvery) == 0))
@@ -164,7 +146,7 @@ int main(int argc, char* argv[]) {
                 else
                 {
                     do {
-                        err = hipEventQuery(stop);
+                        err = hipStreamQuery(NULL);
                     } while (err == hipErrorNotReady);
                 }
             }
@@ -177,13 +159,11 @@ int main(int argc, char* argv[]) {
         else
         {
             do {
-                err = hipEventQuery(stop);
+                err = hipStreamQuery(NULL);
             } while (err == hipErrorNotReady);
         }
         timer.Stop();
 
-        hipEventDestroy(start);
-        hipEventDestroy(stop);
         double sec = timer.GetElapsedTime();
 
         // microseconds per launch
@@ -191,7 +171,6 @@ int main(int argc, char* argv[]) {
         const char *waitType;
         const char *extraChar;
         const char *n;
-        const char *warmup;
         if (sleep)
         {
             waitType = "sleep";
@@ -204,26 +183,21 @@ int main(int argc, char* argv[]) {
             n = "n";
             extraChar = " ";
         }
-        if (doWarmup)
-        {
-            warmup = "warmup";
-        }
-        else
-        {
-            warmup = "";
-        }
 
 
         char buf[256];
         if (testList[openTest].flushEvery > 0)
         {
-            SNPRINTF(buf, sizeof(buf), "HIPPerfDispatchSpeed[%3d] %7d dispatches %s%sing every %5d %6s (us/disp) %3f", test, testList[openTest].iterations,
-                    waitType, n, testList[openTest].flushEvery, warmup, (float)perf);
+            SNPRINTF(buf, sizeof(buf),
+                     "HIPPerfDispatchSpeed[%3d] %7d dispatches %s%sing every %5d (us/disp) %3f",
+                     test, testList[openTest].iterations,
+                     waitType, n, testList[openTest].flushEvery, (float)perf);
         }
         else
         {
-            SNPRINTF(buf, sizeof(buf), "HIPPerfDispatchSpeed[%3d] %7d dispatches (%s%s)              %6s (us/disp) %3f", test, testList[openTest].iterations,
-                    waitType, extraChar, warmup, (float)perf);
+            SNPRINTF(buf, sizeof(buf),
+                     "HIPPerfDispatchSpeed[%3d] %7d dispatches (%s%s)              (us/disp) %3f",
+                     test, testList[openTest].iterations, waitType, extraChar, (float)perf);
         }
         printf("%s\n", buf);
     }