From: Kuan-Wei Chiu <visitorckw@gmail.com>
To: austin.zheng@amd.com, jun.lei@amd.com, harry.wentland@amd.com,
sunpeng.li@amd.com, alexander.deucher@amd.com,
christian.koenig@amd.com, airlied@gmail.com, simona@ffwll.ch,
siqueira@igalia.com, alex.hung@amd.com, aurabindo.pillai@amd.com
Cc: chiahsuan.chung@amd.com, nicholas.kazlauskas@amd.com,
wenjing.liu@amd.com, jserv@ccns.ncku.edu.tw,
amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Kuan-Wei Chiu <visitorckw@gmail.com>
Subject: [PATCH v2 0/2] drm/amd/display: optimize reserved time candidates handling
Date: Tue, 9 Sep 2025 17:20:55 +0800 [thread overview]
Message-ID: <20250909092057.473907-1-visitorckw@gmail.com> (raw)
Optimize the handling of reserved time candidates by replacing the
custom bubble sort with the kernel's standard sort() and rewriting
duplicate removal with a linear-time fast/slow pointer method. The
changes improve sorting from O(N^2) to O(N log N) and duplicate removal
from O(N^2) to O(N), reducing computational overhead and eliminating
hand-rolled implementations, while correctness has been verified with
simple unit tests.
---
Changes from v1:
- Add early return when *list_a_size = 0 to fix a corner case.
v1: https://lore.kernel.org/lkml/20250824182359.142050-1-visitorckw@gmail.com
Kuan-Wei Chiu (2):
drm/amd/display: Optimize reserved time candidates sorting using
standard sort()
drm/amd/display: Optimize remove_duplicates() from O(N^2) to O(N)
.../dml2/dml21/src/dml2_pmo/dml2_pmo_dcn3.c | 44 ++++++++++---------
1 file changed, 24 insertions(+), 20 deletions(-)
--
2.34.1
next reply other threads:[~2025-09-09 9:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-09 9:20 Kuan-Wei Chiu [this message]
2025-09-09 9:20 ` [PATCH v2 1/2] drm/amd/display: Optimize reserved time candidates sorting using standard sort() Kuan-Wei Chiu
2025-09-09 9:20 ` [PATCH v2 2/2] drm/amd/display: Optimize remove_duplicates() from O(N^2) to O(N) Kuan-Wei Chiu
2025-09-22 18:06 ` Alex Hung
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