linux-kernel - Re: [PATCH] mm: page_alloc: High-order per-cpu page allocator v7

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Message-ID: <20161208173928.gts7vsu6rqj4dicx@techsingularity.net>
Date:   Thu, 8 Dec 2016 17:39:28 +0000
From:   Mel Gorman <mgorman@...hsingularity.net>
To:     Jesper Dangaard Brouer <brouer@...hat.com>
Cc:     Eric Dumazet <eric.dumazet@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christoph Lameter <cl@...ux.com>,
        Michal Hocko <mhocko@...e.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Johannes Weiner <hannes@...xchg.org>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Linux-MM <linux-mm@...ck.org>,
        Linux-Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: page_alloc: High-order per-cpu page allocator v7

On Thu, Dec 08, 2016 at 06:19:51PM +0100, Jesper Dangaard Brouer wrote:
> > > See patch below signature.
> > > 
> > > Besides I think you misunderstood me, you can adjust:
> > >  sysctl net.core.rmem_max
> > >  sysctl net.core.wmem_max
> > > 
> > > And you should if you plan to use/set 851968 as socket size for UDP
> > > remote tests, else you will be limited to the "max" values (212992 well
> > > actually 425984 2x default value, for reasons I cannot remember)
> > >   
> > 
> > The intent is to use the larger values to avoid packet loss on
> > UDP_STREAM.
> 
> We do seem to misunderstand each-other.
> I was just pointing out two things:
> 
> 1. Notice the difference between "max" and "default" proc setting.
>    Only adjust the "max" setting.
> 
> 2. There was simple BASH-shell script error in your commit.
>    Patch below fix it.
> 

Understood now.

> [PATCH] mmtests: actually use variable SOCKETSIZE_OPT
> 
> From: Jesper Dangaard Brouer <brouer@...hat.com>
> 

Applied, thanks!

-- 
Mel Gorman
SUSE Labs