Re: [Ext2-devel] Re: [RFC][PATCH 0/2]Extend ext3 filesystem limit from 8TB to 16TB

From: Ravikiran G Thirumalai
Date: Fri Apr 14 2006 - 13:22:15 EST


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-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/