Richard B. Gilbert wrote: > David J Taylor wrote: >> David Woolley wrote: >> [] >>> You won't get millisecond accuracy on Windows. Although the >>> software clock can be disciplined to better than a millisecond, >>> applications can only read to one tick, which is 10ms by default >>> and 1ms with the fastest multi-media timers (which risks lost >>> ticks). >> >> David, do you have a reference for your "risks lost ticks" statement >> as applied to Windows? >> >> Thanks, >> David > > ISTR that there have been previous references in this newsgroup. > Specifically, EIDE disk drivers can mask or disable interrupts for a > period long enough to cause a "lost tick". I believe the group is > archived somewhere. . . .
Thanks, Richard. I can imagine that any disks working in PIO mode wouldn't be welcome friends either. The last EIDE desktop PC I bought was some seven years ago, so I hope it's a problem which won't affect too many people, and all being well not those starting from scratch. Cheers, David _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
