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From: John Hubbard <jhubbard@nvidia.com>
To: Ryan Roberts <ryan.roberts@arm.com>,
	Mel Gorman <mgorman@techsingularity.net>,
	linux-mm <linux-mm@kvack.org>,
	"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Subject: NUMA + THP test suites?
Date: Mon, 30 Oct 2023 16:21:13 -0700	[thread overview]
Message-ID: <21812f89-c1a0-4ca0-9f73-54f20c4d29ef@nvidia.com> (raw)

Hi,

I have some tentative solutions to the "NUMA balancing prerequisite" for
Ryan's "[PATCH v6 0/9] variable-order, large folios for anonymous
memory" [1]. However, I need to actually exercise the patches, in order
to post anything worth reading, and as usual that is the hard part.

After some initial searching around, it's time to simply ask: are there
any test suites that will exercise NUMA page faults with THP? I am
seeing hints of coverage, but with NUMA and THP separately covered, in
the mm selftests. And also stress-ng has some numa coverage.

So I was thinking of augmenting the selftests to get coverage (and the
pte-mapped THP would be a happier story with this as well), but maybe
tests along these lines already exist somewhere?


[1] https://lore.kernel.org/all/197819d2-d7fa-47ae-b893-ef2fce25b2be@nvidia.com/

thanks,
-- 
John Hubbard
NVIDIA



             reply	other threads:[~2023-10-30 23:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-30 23:21 John Hubbard [this message]
2023-10-31 10:28 ` David Hildenbrand
2023-10-31 17:52   ` John Hubbard

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