Re: arch/x86/kernel/cpu/intel.c needs an update for Haswell?

[Alex Shi]

On 08/01/2013 05:07 PM, Alex Shi wrote:
> From 6fb21a9ce475cfc6c7c39bdfd3d9422be24cdb74 Mon Sep 17 00:00:00 2001
> From: Alex Shi <alex.shi@xxxxxxxxx>
> Date: Wed, 31 Jul 2013 16:28:42 +0800
> Subject: [PATCH 1/2] x86/tlb_flushall_shift: add Ivybridge EP CPU support
> 
> Tested with munmap.c on Ivybridge EP 2S machine, the best shift value is
> 2, that means when the tlb flush entries less than 64, single invlpg has
> performance benefit on this machine.
> The testcase come from: https://lkml.org/lkml/2012/5/17/59
> Results show it has about 5% to 30% performance increase.
> 
> Signed-off-by: Alex Shi <alex.shi@xxxxxxxxx>
> ---

Any comments are appreciated!

-- 
Thanks
    Alex
--
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/