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Date: Tue, 10 Oct 2017 10:51:51 +0800
From: Aaron Lu <aaron.lu@intel.com>
To: Dave Hansen <dave.hansen@intel.com>
Cc: linux-mm <linux-mm@kvack.org>, lkml <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Andi Kleen <ak@linux.intel.com>, Huang Ying <ying.huang@intel.com>,
        Tim Chen <tim.c.chen@linux.intel.com>, Kemi Wang <kemi.wang@intel.com>
Subject: Re: [PATCH] page_alloc.c: inline __rmqueue()
Message-ID: <20171010025151.GD1798@intel.com>
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 <3a46edcf-88f8-e4f4-8b15-3c02620308e4@intel.com>
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On Mon, Oct 09, 2017 at 01:23:34PM -0700, Dave Hansen wrote:
> On 10/08/2017 10:44 PM, Aaron Lu wrote:
> > On a 2 sockets Intel-Skylake machine:
> >       base          %change       head
> >      77342            +6.3%      82203        will-it-scale.per_process_ops
> 
> What's the unit here?  That seems ridiculously low for page_fault1.
> It's usually in the millions.

per_process_ops = processes/nr_process

since nr_process here is nr_cpu, so on the 2 sockets machine with 104
CPUs, processes are 8043568(base) and 8549112(head), which are in the
millions as you correctly pointed out.