"Maciej W. Rozycki" <[EMAIL PROTECTED]> writes: >On Wed, 9 Apr 2008, Unruh wrote:
>> WHAT? What linux platform uses the "1 interrupt per second" of the rtc >> clock as the timer interrupt? (never mind that the latest motherboards do >> not have an rtc at all, and use the HPET in poll mode to mimic an rtc). > A number of DEC platforms have their RTC chip (a Dallas 1287A typically) >as the only source of the timer interrupt. The rate is configurable in >powers of two between 2Hz and 8192Hz, with 128Hz and 1024Hz being the >commonest with Linux (and elsewhere). You must be confusing the >update-ended interrupt (which is indeed 1Hz) here with the periodic >interrupt which may be set to the desired rate. OK, if you say so. I am used to the CPU timer being very different from the rtc, but I am only used to PCs. It sounds really weird to have the rtc and the cpu timer being coupled like that. I would expect the timer to just keep going, and not to be dependent on the actual value that one stuck into the rtc. > Maciej _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
