Date: Fri, 16 Dec 2011 16:21:32 +0100 From: Stefan Bethke <stb@lassitu.de> To: freebsd-mips@freebsd.org Subject: microuptime, nanouptime during boot? Message-ID: <62216DC9-01B4-4747-9BA0-1A7C6E077DD9@lassitu.de>
next in thread | raw e-mail | index | archive | help
Hi,
I'm trying to speed up iicbb by switching from DELAY to something with a higher resolution. I figured I'd try to use the time-honored method of calibrating an I/O operation as a delay loop. To my surprise, {get,}{micro,nano}uptime dont seem to be ticking during boot.
Am I doing something wrong? Is there an easier way to get a sub-microsecond delay?
Stefan
--
Stefan Bethke <stb@lassitu.de> Fon +49 151 14070811
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?62216DC9-01B4-4747-9BA0-1A7C6E077DD9>