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Message-ID: <20240628130750.73097-1-ioworker0@gmail.com>
Date: Fri, 28 Jun 2024 21:07:48 +0800
From: Lance Yang <ioworker0@...il.com>
To: akpm@...ux-foundation.org
Cc: dj456119@...il.com,
21cnbao@...il.com,
ryan.roberts@....com,
david@...hat.com,
shy828301@...il.com,
ziy@...dia.com,
libang.li@...group.com,
baolin.wang@...ux.alibaba.com,
linux-kernel@...r.kernel.org,
linux-mm@...ck.org,
Lance Yang <ioworker0@...il.com>
Subject: [PATCH v2 0/2] mm: introduce per-order mTHP split counters
Hi all,
Currently, the split counters in THP statistics no longer include
PTE-mapped mTHP. Therefore, we propose introducing per-order mTHP split
counters to monitor the frequency of mTHP splits. This will help developers
better analyze and optimize system performance.
/sys/kernel/mm/transparent_hugepage/hugepages-<size>/stats
split
split_failed
split_deferred
---
Changes since v1 [1]
====================
- mm: add per-order mTHP split counters
- Update the changelog
- Drop '_page' from mTHP split counter names (per David and Ryan)
- Store the order of the folio in a variable and reuse it later
(per Bang)
- mm: add docs for per-order mTHP split counters
- Improve the doc suggested by Ryan
[1] https://lore.kernel.org/linux-mm/20240424135148.30422-1-ioworker0@gmail.com
Lance Yang (2):
mm: add per-order mTHP split counters
mm: add docs for per-order mTHP split counters
Documentation/admin-guide/mm/transhuge.rst | 16 ++++++++++++++++
include/linux/huge_mm.h | 3 +++
mm/huge_memory.c | 19 ++++++++++++++-----
3 files changed, 33 insertions(+), 5 deletions(-)
--
2.45.2
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