Date: Tue, 14 Jun 2011 18:11:05 +0200 From: Luigi Rizzo <rizzo@iet.unipi.it> To: current@freebsd.org Subject: fast/syscall-free gettimeofday ? Message-ID: <20110614161105.GA17306@onelab2.iet.unipi.it>
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there were discussions at some point on an imprecise but fast implementations of gettimeofday() that would not require a system call (perhaps mmapping some memory region which is opportunistically updated). Does anyone remember what happened about that ? Otherwise, is there any place in the kernel where i can fetch a struct timeval which is not off by more than, say 1 tick ? cheers luigi
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