BuildScript.cmd

SET EDK2_PATH=%BUILDTOOLSDIR%\UDK\2018
SET EDK_TOOLS_PATH=%EDK2_PATH%\BaseTools
SET EDK_TOOLS_BIN=%EDK_TOOLS_PATH%\Bin\Win32
SET PATH=%EDK2_PATH%;%PATH%

set WORKSPACE=%CD%
set PACKAGES_PATH=%EDK2_PATH%
call edksetup.bat

build -t VS2017 -a X64 --buildtarget=RELEASE -p UefiTimerCheck.dsc -m UefiTimerCheck.inf

UefiTimerCheck.c

#include <Uefi.h>
#include <Library/UefiLib.h>
#include <Library/TimerLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiApplicationEntryPoint.h>

EFI_STATUS EFIAPI
UefiMain (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
) {
  AsciiPrint ("Timer Check - Press Enter to exit...\n");
  UINT64 timeNs = 0, timeMs = 0, perfHz = 0, startVal = 0, endVal = 0;
  EFI_INPUT_KEY Key;

  do {
    AsciiPrint ("Running GetPerformanceCounterProperties...\n");
    perfHz = GetPerformanceCounterProperties(&startVal, &endVal);
    AsciiPrint ("Running GetPerformanceCounter + GetTimeInNanoSecond...\n");
    timeNs = GetTimeInNanoSecond(GetPerformanceCounter());
    timeMs = timeNs / 1000000;
    AsciiPrint ("Ms: 0x%16X | Ns: 0x%16X | PerfHz: 0x%16X | StartVal: 0x%16X | EndVal: 0x%16X \n",
                       timeMs,      timeNs,          perfHz,            startVal,        endVal);

    gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
  } while (Key.UnicodeChar != 0xD);
  return EFI_SUCCESS;
}

UefiTimerCheck.dsc

[Defines]
  PLATFORM_NAME                  = UefiTimerCheck
  PLATFORM_GUID                  = d8c3b2d5-d264-4f5d-913c-3acb1c661eb8
  PLATFORM_VERSION               = 1.0
  DSC_SPECIFICATION              = 0x00010005
  SUPPORTED_ARCHITECTURES        = X64|AARCH64
  BUILD_TARGETS                  = DEBUG|RELEASE
  SKUID_IDENTIFIER               = DEFAULT

[SkuIds]
  0|DEFAULT

[LibraryClasses]
  BaseLib|MdePkg/Library/BaseLib/BaseLib.inf
  BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
  MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemoryAllocationLib.inf
  UefiLib|MdePkg/Library/UefiLib/UefiLib.inf
  UefiApplicationEntryPoint|MdePkg/Library/UefiApplicationEntryPoint/UefiApplicationEntryPoint.inf
  UefiBootServicesTableLib|MdePkg/Library/UefiBootServicesTableLib/UefiBootServicesTableLib.inf
  UefiRuntimeServicesTableLib|MdePkg/Library/UefiRuntimeServicesTableLib/UefiRuntimeServicesTableLib.inf
  DebugLib|MdePkg/Library/UefiDebugLibConOut/UefiDebugLibConOut.inf
  DebugPrintErrorLevelLib|MdePkg/Library/BaseDebugPrintErrorLevelLib/BaseDebugPrintErrorLevelLib.inf
  PrintLib|MdePkg/Library/BasePrintLib/BasePrintLib.inf
  PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
  DevicePathLib|MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.inf
  SynchronizationLib|MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf

  # Platform freezes :<
  #TimerLib|MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate.inf

  # All zeroes :|
  #TimerLib|MdePkg/Library/SecPeiDxeTimerLibCpu/SecPeiDxeTimerLibCpu.inf
  #IoLib|MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf

  # Platform freezes :<
  #TimerLib|PcAtChipsetPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.inf
  #IoLib|MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
  #PciLib|MdePkg/Library/BasePciLibPciExpress/BasePciLibPciExpress.inf
  #PciExpressLib|MdePkg/Library/BasePciExpressLib/BasePciExpressLib.inf
  #HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf

[Components]
  UefiTimerCheck.inf

UefiTimerCheck.inf

[Defines]
  INF_VERSION                    = 0x00010005
  BASE_NAME                      = UefiTimerCheck
  FILE_GUID                      = c52ff074-97d5-4983-afc7-9eb915c59ce3
  MODULE_TYPE                    = UEFI_APPLICATION
  VERSION_STRING                 = 1.0
  ENTRY_POINT                    = UefiMain
  VALID_ARCHITECTURES            = X64 AARCH64

[Sources]
  UefiTimerCheck.c

[Packages]
  StdLib/StdLib.dec
  MdePkg/MdePkg.dec
  MdeModulePkg/MdeModulePkg.dec

[LibraryClasses]
  UefiLib
  BaseLib
  TimerLib
  BaseMemoryLib
  MemoryAllocationLib
  UefiBootServicesTableLib
  UefiApplicationEntryPoint