linux-kernel - [PATCH 0/2] mm: optimize shadow entries removal

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Message-ID: <20240911173801.4025422-1-shakeel.butt@linux.dev>
Date: Wed, 11 Sep 2024 10:37:59 -0700
From: Shakeel Butt <shakeel.butt@...ux.dev>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Matthew Wilcox <willy@...radead.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Omar Sandoval <osandov@...ndov.com>,
	Chris Mason <clm@...com>,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Meta kernel team <kernel-team@...a.com>,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH 0/2] mm: optimize shadow entries removal

Some of our production workloads which processes a large amount of data
spends considerable amount of CPUs on truncation and invalidation of
large sized files (100s of GiBs of size). Tracing the operations showed
that most of the time is in shadow entries removal. This patch series
optimizes the truncation and invalidation operations.

(This is 6.13+ material)

Shakeel Butt (2):
  mm: optimize truncation of shadow entries
  mm: optimize invalidation of shadow entries

 mm/truncate.c | 96 ++++++++++++++++++++++-----------------------------
 1 file changed, 41 insertions(+), 55 deletions(-)

-- 
2.43.5