Как определить скорость процессора 2
program ....; .. .. const ID_BIT = $200000; // EFLAGS ID bit function GetCPUSpeed: Double; const DelayTime = 500; var TimerHi, TimerLo: DWORD; PriorityClass, Priority: Integer; begin try PriorityClass := GetPriorityClass(GetCurrentProcess); Priority := GetThreadPriority(GetCurrentThread); SetPriorityClass(GetCurrentProcess, REALTIME_PRIORITY_CLASS); SetThreadPriority(GetCurrentThread,THREAD_PRIORITY_TIME_CRITICAL); Sleep(10); asm dw 310Fh // rdtsc mov TimerLo, eax mov TimerHi, edx end; Sleep(DelayTime); asm dw 310Fh // rdtsc sub eax, TimerLo sbb edx, TimerHi mov TimerLo, eax mov TimerHi, edx end; SetThreadPriority(GetCurrentThread, Priority); SetPriorityClass(GetCurrentProcess, PriorityClass); Result := TimerLo / (1000.0 * DelayTime); except end; end; procedure TForm1.Button1Click(Sender: TObject); var cpuspeed: string; begin cpuspeed := Format('%f MHz', [GetCPUSpeed]); edit1.text := cpuspeed; end; |
Далее: Как определить скорость процессора 3 »»