On Wednesday 22 October 2008 01:30 pm, Jung-uk Kim wrote: > Author: jkim > Date: Wed Oct 22 17:30:37 2008 > New Revision: 184169 > URL: http://svn.freebsd.org/changeset/base/184169 > > Log: > Add AMD Family 0Fh, Model 6Bh, Stepping 2 to the list of > invariant TSCs and fix i386 test.
Here is a simple test program: http://people.freebsd.org/~jkim/get_tsc.c How to find whether you have P-state invariant TSC: - Kill powerd if you are running it. - Set kern.timecounter.hardware to something other than TSC. - Set the lowest CPU frequency manually and run the test. If it reports something close to maximum frequency, you have P-state invariant TSC. FYI... Jung-uk Kim _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"
