Only verified on i386 and amd64 FreeBSD 7BETA. Discussions with: bf <bf2006a@yahoo.com>, truckman and Tijl Coosemans <tijl@ulyssis.org>. PR: 118270 and 118271
o L1 cache size is not correctly detected having a bad clock o in some case small number of tries in tuning doesn't meet convergence see FAQ http://math-atlas.sourceforge.net/errata.html#tol