On Fri, 17 Aug 2007, Mathieu Desnoyers wrote:

quoted text
> Actually, get_cycles() at least on some AMD cpus, do not synchronize the
> core, which can skew the results. You might want to use
> get_cycles_sync() there.

get_cycle() results as used here are bound to a single processor. If we 
end up on a different processor at the end of the measurement then the 
result is discarded. So not need for get_cycles_sync.

-
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/