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Date: Sat, 5 Sep 2026 17:32:49 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Sarthak Sharma <sarthak.sharma@arm.com>
Cc: David Hildenbrand <david@kernel.org>, Lorenzo Stoakes <ljs@kernel.org>,
 "Liam R . Howlett" <liam@infradead.org>, Vlastimil Babka
 <vbabka@kernel.org>, Mike Rapoport <rppt@kernel.org>, Suren Baghdasaryan
 <surenb@google.com>, Michal Hocko <mhocko@suse.com>, Shuah Khan
 <shuah@kernel.org>, Shuah Khan <skhan@linuxfoundation.org>, Jonathan Corbet
 <corbet@lwn.net>, Jason Gunthorpe <jgg@ziepe.ca>, John Hubbard
 <jhubbard@nvidia.com>, Peter Xu <peterx@redhat.com>, Leon Romanovsky
 <leon@kernel.org>, Zi Yan <ziy@nvidia.com>, Baolin Wang
 <baolin.wang@linux.alibaba.com>, Nico Pache <npache@redhat.com>, Ryan
 Roberts <ryan.roberts@arm.com>, Dev Jain <dev.jain@arm.com>, Barry Song
 <baohua@kernel.org>, Lance Yang <lance.yang@linux.dev>, Mark Brown
 <broonie@kernel.org>, Anshuman Khandual <anshuman.khandual@arm.com>,
 Muhammad Usama Anjum <usama.anjum@arm.com>, linux-mm@kvack.org,
 linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org,
 linux-kernel@vger.kernel.org
Subject: Re: [PATCH v9 0/6] selftests/mm: separate GUP microbenchmarking
 from functional testing
Message-Id: <20260905173249.00f41b2a88abb0aefd217e94@linux-foundation.org>
In-Reply-To: <20260904123631.198697-1-sarthak.sharma@arm.com>
References: <20260904123631.198697-1-sarthak.sharma@arm.com>
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On Fri,  4 Sep 2026 18:06:25 +0530 Sarthak Sharma <sarthak.sharma@arm.com> wrote:

> gup_test.c currently serves two separate purposes: benchmarking
> (GUP_FAST_BENCHMARK, PIN_FAST_BENCHMARK and PIN_LONGTERM_BENCHMARK) and
> functional testing (GUP_BASIC_TEST, PIN_BASIC_TEST and
> DUMP_USER_PAGES_TEST). Keeping both in one program makes the functional
> tests harder to run and report individually, while run_vmtests.sh has to
> invoke the program repeatedly with different options.
> 
> Separate these roles into tools/mm/gup_bench for benchmarking and
> tools/testing/selftests/mm/gup for functional testing. Move the shared
> file and hugepage helpers to tools/lib/mm/ so both programs can use them
> without duplicating the implementation.

Thanks, I've added this series to mm.git's mm-new branch for testing
and hopefully further progression.