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Date: Thu, 6 Feb 2025 00:01:11 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: Zi Yan <ziy@nvidia.com>
Cc: linux-mm@kvack.org, "Kirill A . Shutemov"
 <kirill.shutemov@linux.intel.com>, "Matthew Wilcox (Oracle)"
 <willy@infradead.org>, Ryan Roberts <ryan.roberts@arm.com>, Hugh Dickins
 <hughd@google.com>, David Hildenbrand <david@redhat.com>, Yang Shi
 <yang@os.amperecomputing.com>, Miaohe Lin <linmiaohe@huawei.com>, Kefeng
 Wang <wangkefeng.wang@huawei.com>, Yu Zhao <yuzhao@google.com>, John
 Hubbard <jhubbard@nvidia.com>, Baolin Wang <baolin.wang@linux.alibaba.com>,
 linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 0/7] Buddy allocator like (or non-uniform) folio
 split
Message-Id: <20250206000111.6c54e67d1933f8bbc01a46cd@linux-foundation.org>
In-Reply-To: <20250205031417.1771278-1-ziy@nvidia.com>
References: <20250205031417.1771278-1-ziy@nvidia.com>
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On Tue,  4 Feb 2025 22:14:10 -0500 Zi Yan <ziy@nvidia.com> wrote:

> This patchset adds a new buddy allocator like (or non-uniform) large folio
> split to reduce the total number of after-split folios, the amount of memory
> needed for multi-index xarray split, and keep more large folios after a split.

It would be useful (vital, really) to provide some measurements which
help others understand the magnitude of these resource savings, please.