Hi Laurent,
On Tue, Apr 11, 2006 at 09:07:39AM +0200, Laurent Vivier wrote:
> ...
> I made some tests with iozone on 2 CPU hyperthreaded computer (= 4 CPUs,
> Bull Express 5800 120 Lh), and it seems atomic_t is faster than
> "percpu_counter". I'll try to make some tests on IBM x440 (8 CPUs, 16 if
> hyperthreaded) with iozone and sysbench.
> Moreover, I think percpu_counter uses a lot of memory...
Was this just one iozone thread doing io? What was the performance
difference? Please let me know what kind of test you are doing, and I can
run the same on an IBM x460 with 16 cores here.
Thanks,
Kiran
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