Messages in this thread | | | Date | Thu, 1 Aug 2002 12:18:24 -0700 | From | Chris Wedgwood <> | Subject | Re: [rfc] aio-core for 2.5.29 (Re: async-io API registration for 2.5.29) |
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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; };
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