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 - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html