linux-kernel - Re: [PATCH 4/9] net: openvswitch: use this_cpu

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Date:	Fri, 09 Nov 2012 09:39:58 +0800
From:	Shan Wei <shanwei88@...il.com>
To:	Christoph Lameter <cl@...ux.com>
CC:	jesse@...ira.com, dev@...nvswitch.org,
	NetDev <netdev@...r.kernel.org>,
	Kernel-Maillist <linux-kernel@...r.kernel.org>,
	David Miller <davem@...emloft.net>
Subject: Re: [PATCH 4/9] net: openvswitch: use this_cpu_ptr per-cpu helper

Christoph Lameter said, at 2012/11/9 1:18:
> On Thu, 8 Nov 2012, Shan Wei wrote:
> 
>> Christoph Lameter said, at 2012/11/3 1:46:
>>>>  		u64_stats_update_begin(&stats->sync);
>>>>  		stats->tx_packets++;
>>>
>>> Use this_cpu_inc(vport->percpu_stats->packets) here?
>>
>> Lots of network drivers use u64_stats_sync infrastructure for statistics
> 
> So they would all have an advantage from the patch.

I will try to do the optimizing next time in another patchset which not included
in this series patchset.

I will submit v3 version of this series after testing today.

Thanks

 
 

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