K 10 svn:author V 4 jkim K 8 svn:date V 27 2011-04-12T23:04:01.993739Z K 7 svn:log V 249 Reinstate cpu_est_clockrate() support for P-state invariant TSC if APERF and MPERF MSRs are available. It was disabled in r216443. Remove the earlier hack to subtract 0.5% from the calibrated frequency as DELAY(9) is little bit more reliable now. END