Date: Thu, 20 Jun 2013 13:37:36 -0700 (PDT)
From: David Rientjes <rientjes@google.com>
To: Mike Galbraith <bitbucket@online.de>
cc: Robin Holt <holt@sgi.com>, Alex Thorlton <athorlton@sgi.com>,
        linux-kernel@vger.kernel.org, Li Zefan <lizefan@huawei.com>,
        Rob Landley <rob@landley.net>,
        Andrew Morton <akpm@linux-foundation.org>,
        Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>,
        "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>,
        linux-doc@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v2] Make transparent hugepages cpuset aware
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On Thu, 20 Jun 2013, Mike Galbraith wrote:

> > I'm suspecting that you're referring to enlarged rss because of 
> > khugepaged's max_ptes_none and because you're abusing the purpose of 
> > cpusets for containerization.
> 
> Why is containerization an abuse?  What's wrong with renting out chunks
> of a big box farm on the fly like a task motel?  If a realtime customer
> checks in, he's not gonna be thrilled about sharing a room.
> 

We "abused" cpusets for containerization for years, I'm not implying any 
negative connotation to it, see the 
Documentation/x86/x86_64/fake-numa-for-cpusets document that I wrote.  It 
doesn't suggest that we should be controlling thp through cpusets; if he's 
complaining about static binaries where he can't use a malloc hook then 
why not make it per-process so users don't have to configure cpusets to 
control it?
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