cpuinfo, bogomips and duo core

[Reindl Harald]

Am 12.02.2013 17:31, schrieb Heinz Diehl:
> On 12.02.2013, Reindl Harald wrote: 
> 
>> -O3 -march=corei7 -mtune=corei7 -mmmx -msse2 -msse3 -msse4.1 -msse4.2 -maes -fopenmp -mfpmath=sse
> 
> You can do that more easily by "-march=native"

you can not do this because you can hardly deploy packages
built this way on a i7-3770 (Ivy Bdrige) to a Xeon E5640
which is Westmere architecture without ending in "unknown
CPU instruction" and random crashes and in the worst case
this will hit you due vMotion if the host where you started
a guest has the newer instructions and the target machine
not - if this happen due failover you are done at all


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