Performance of 4.x vs 5.x (nbench results)

Matthias Buelow mkb at
Tue May 24 14:00:41 PDT 2005

Bohdan Horst wrote:

> (5.4O == 4.11 binary on 5.4R)
> almost identical speed :)

Well, that's hardly surprising.. short of minimizing the number of page
faults and avoiding TLB/cache shootdowns, what can the OS do to speed up
the CPU pipeline?  The nbench program doesn't benchmark any OS functions
at all (except for loading time).


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