6726459 dunnington based tucani system has huge memory latency, almost 5x of tigerton based tucani system

[bill.hol...@sun.com]

Author: Bill Holler <Bill.Holler at Sun.COM>
Repository: /hg/onnv/onnv-gate
Latest revision: 44c2ec1382beb0510e1c47e6a0b267566bd6c5a4
Total changesets: 1
Log message:
6726459 dunnington based tucani system has huge memory latency, almost 5x of 
tigerton based tucani system

Files:
        update: usr/src/uts/i86pc/os/cpuid.c
        update: usr/src/uts/i86pc/os/mp_machdep.c
        update: usr/src/uts/intel/ia32/ml/i86_subr.s