Performance Testing added to PCIeLink class

Software/waveview/scope_link/include/PCIe.hpp

@@ -68,6 +68,10 @@ public:
     void Read(uint8_t* buff);
     void Write(ScopeCommand command, void* val);
 
+    void ClockTick1();
+    void ClockTick2();
+    void PrintTimeDelta();
+
     ~PCIeLink();
 
 private:
@@ -82,6 +86,10 @@ private:
     LARGE_INTEGER freq; //used for perforamnce testing
     int64_t last_chunk_read;
 
+    //used for speed testing
+    LARGE_INTEGER tick1;
+    LARGE_INTEGER tick2;
+
     void _Read(HANDLE hPCIE, long long address, uint8_t* buff, int bytesToRead);
     void _Write(HANDLE hPCIE, long long address, uint8_t* buff, int bytesToWrite);
     void _FIFO_WRITE(HANDLE hPCIE, uint8_t* data, uint8_t bytesToWrite);

Software/waveview/scope_link/src/EVTester.cpp

@@ -284,7 +284,11 @@ void runPCIeTest() {
     pcieLink->Write(dataMover_enable,nullptr);
     
     uint8_t* buff = (uint8_t*)malloc(sizeof(uint8_t) * (1 << 23));
+    pcieLink->ClockTick1();
     pcieLink->Read(buff);
+    pcieLink->ClockTick2();
+
+    pcieLink->PrintTimeDelta();
 
     FILE* fp = fopen("TestData.txt","w");
     for(int i = 0; i < (1 << 23); i+= 8) {

Software/waveview/scope_link/src/PCIe.cpp

@@ -348,15 +348,9 @@ void PCIeLink::_Read(HANDLE hPCIE, int64_t address, uint8_t* buff, int bytesToRe
 
     // read from device into buffer
     DWORD bytesRead;
-    LARGE_INTEGER start;
-    LARGE_INTEGER stop;
-    QueryPerformanceCounter(&start);
     if (!ReadFile(hPCIE, buff, bytesToRead, &bytesRead, NULL)) {
         ERROR << "_Read() failed with Win32 error code: " << GetLastError();
     }
-    QueryPerformanceCounter(&stop);
-    double time_sec = (unsigned long long)(stop.QuadPart - start.QuadPart) / (double)freq.QuadPart;
-    //INFO << bytesRead << " bytes read in " << time_sec;
 }
 
 void PCIeLink::_Write(HANDLE hPCIE, int64_t address, uint8_t* buff, int bytesToWrite) {
@@ -374,15 +368,9 @@ void PCIeLink::_Write(HANDLE hPCIE, int64_t address, uint8_t* buff, int bytesToW
 
     // write from buffer to device
     DWORD bytesWritten;
-    LARGE_INTEGER start;
-    LARGE_INTEGER stop;
-    QueryPerformanceCounter(&start);
     if (!WriteFile(hPCIE, buff, bytesToWrite, &bytesWritten, NULL)) {
         ERROR << "_Write() failed with Win32 error code: " << GetLastError();
     }
-    QueryPerformanceCounter(&stop);
-    double time_sec = (unsigned long long)(stop.QuadPart - start.QuadPart) / (double)freq.QuadPart;
-    //INFO << bytesWritten << " bytes written in " << time_sec;
 }
 
 PCIeLink::PCIeLink() {
@@ -401,7 +389,25 @@ PCIeLink::~PCIeLink() {
 }
 
 
-
+void PCIeLink::ClockTick1() {
+    QueryPerformanceCounter(&tick1);
+}
+
+void PCIeLink::ClockTick2() {
+    QueryPerformanceCounter(&tick2);
+}
+
+/************************************************************
+ * PrintTimeDelta()
+ * prints the time difference between tick1 and tick2 -> (tick2 - tick1) / freq
+ * 
+ * return: NONE
+ * 
+*************************************************************/
+void PCIeLink::PrintTimeDelta() {
+    double time_sec = (unsigned long long)(tick2.QuadPart - tick1.QuadPart) / (double)freq.QuadPart;
+    INFO << "Time Delta is: " << time_sec;
+}