K 10 svn:author V 3 mav K 8 svn:date V 27 2010-07-11T11:58:46.763183Z K 7 svn:log V 259 MFC r209328,r209330: While we indeed can't precisely measure time spent in C1, we can consider measured interval as upper bound. It should be more precise then just assuming 1/(2*hz). For idle CPU it should be quite precise, for busy - not worse then before. END