2 x quad-core system is slower that 2 x dual core on FreeBSD

Claus Guttesen kometen at gmail.com
Tue Nov 20 13:22:44 PST 2007

> > FWIW, we are seeing 2 x quad-core 2.66GHz outperform (per core) 2 x
> > dual-core 3GHz on the same type of m/b, apparently because of better
> > bandwidth to memory. However, this is on a compute-intensive workload
> > running 1 job per core so would be pretty insensitive to
> > scheduler/locking issues.
> Alexey's problem is pretty specific to filesystem performance.  Good to
> hear though :)

If that is the conclusion, wouldn't it make sense trying a different
disk-controller then?


When lenity and cruelty play for a kingdom,
the gentlest gamester is the soonest winner.


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