linux-kernel - Re: [PATCH 3/4] percpu: expose statistics about percpu memory via debugfs

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Message-ID: <20170708203314.GA16910@dennisz-mbp>
Date:   Sat, 8 Jul 2017 16:33:15 -0400
From:   Dennis Zhou <dennisz@...com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
CC:     Tejun Heo <tj@...nel.org>, Christoph Lameter <cl@...ux.com>,
        Linux MM <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        <kernel-team@...com>
Subject: Re: [PATCH 3/4] percpu: expose statistics about percpu memory via
 debugfs

On Fri, Jul 07, 2017 at 10:16:01AM +0200, Geert Uytterhoeven wrote:
> Hi Dennis,
> 
> On Tue, Jun 20, 2017 at 1:28 AM, Dennis Zhou <dennisz@...com> wrote:
> 
> Just wondering: does this option make sense to enable on !SMP?
> 
> If not, you may want to make it depend on SMP.
> 
> Thanks!
> 
> Gr{oetje,eeting}s,
> 
>                         Geert

Hi Geert,

The percpu allocator is still used on UP configs, so it would still
provide useful data.

Thanks,
Dennis