Tim Peters wrote: > Maybe this varies by Linux flavor or version? While the article above > was published in 2001, Googling didn't turn up any hint that Linux > jiffies have actually gone away, or become better loved, since then. well, on x86, they have changed from 10 ms in 2.4 to 1 ms in early 2.6 releases and 4 ms in later 2.6 releases, but that's about it. (the code in my previous post was from a 2.6.17 development version, which, afaict, is about as up to date as you can be). note that the jiffy interrupt handler does use the TSC (or similar mechanism) to update the wall clock time, so it wouldn't be that hard to refactor the code to use it also for process accounting. but I suppose the devil is in the backwards-compatibility details. just setting the HZ value to something very large will probably not work very well... </F>
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