Date: Fri, 27 Mar 2009 21:06:53 +0700 From: Eugene Grosbein <eugen@kuzbass.ru> To: Prashant Vaibhav <prashant.vaibhav@gmail.com> Cc: attilio@freebsd.org, freebsd-hackers@freebsd.org, freebsd-current@freebsd.org Subject: Re: Improving the kernel/i386 timecounter performance (GSoC proposal) Message-ID: <49CCDD7D.FA83BF14@kuzbass.ru> References: <17560ccf0903260551v1f5cba9eu87727c0bae7baa3@mail.gmail.com>
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Prashant Vaibhav wrote: > The primary idea is to improve the performance and resolution of > gettimeofday() and friends by creating a efficient userspace implementation > of these functions, along with some supporting modifications to the kernel. Are you aware of CLOCK_*_FAST family of timecounters present in FreeBSD 7.x? If not, you may want to take a look: http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/sys/time.h#rev1.71 Eugene Grosbein
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