RE: [boost] Re: [date_time] enabling microsec_clock under C++Builder

2003-03-24 Thread Matthew Hurd
Replying to myself sorry... > Quite right. This was related to the QueryPerformanceCounter() using the > 8254-compatible real-time clock which could take several thousand cycles. > The HAL of Pentium's and above should use Intel's RDTSC (Read Time Stamp > Counter) and not suffer this problem. Ap

RE: [boost] Re: [date_time] enabling microsec_clock under C++Builder

2003-03-24 Thread Matthew Hurd
> -Original Message- > On Behalf Of Beman Dawes > Sent: Tuesday, 25 March 2003 1:15 AM > Be careful. At least with some older versions of Windows, the execution > time for some of the Windows time related API's was so large that the > useful resolution was nowhere near the apparent clai