On Thu, Aug 01, 2002 at 09:30:04AM -0700, Linus Torvalds wrote:
A 2% error may not be a big problem for most people, of course. But it
might be a huge problem for others. Those people would have to do their
own re-calibration..
How about export the value via a syscall and also export an 'error'
which for now could just be set to 5% or something conservative and
refined later if necessary or cleanup on other architectures,
something like:
/* export monotonically increasing nanoseconds since boot to
user-space. kt_time is a relative value, it does NOT necessarily
imply nanoseconds since boot. kt_err should be greater than
1stdev of the error in kt_time */
struct kern_time {
__u64 kt_ns;
__u64 kt_err;
};
--cw
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