In message <005a01c614fb$2fe76b00$10eca8c0@grendel> you wrote: > There is no "ideal" value for a given processor frequency. > The lower the value, the less interrupt processing overhead, > but the slower the response time to events that are detected > or serviced during clock interrupts. 1000 HZ *may* be a sensible > value (I have my doubts, personally) for 2+ GHz PC processors, > but it's excessive (IMHO) for a 200MHz processor and unworkable > for a 20MHz CPU. I think that 100HZ is still a reasonable value > for an embedded RISC CPU, but the "ideal" value is going to > be a function of the application. We did some tests of the performance impact of 100 vs. 1000 Hz clock frequency on low end systems (50 MHz PowerPC); for details please see http://www.denx.de/wiki/view/Know/Clock100vs1000Hz Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@xxxxxxx Our missions are peaceful -- not for conquest. When we do battle, it is only because we have no choice. -- Kirk, "The Squire of Gothos", stardate 2124.5
