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From: Julian Sikorski <belegdol@gmail.com>
To: visitorckw@gmail.com
Cc: akpm@linux-foundation.org, jserv@ccns.ncku.edu.tw,
	linux-kernel@vger.kernel.org, lkml@sdf.org,
	alexdeucher@gmail.com
Subject: Re: [PATCH 2/2] lib/sort: Optimize heapsort with double-pop variation
Date: Thu, 20 Jun 2024 17:36:55 +0200	[thread overview]
Message-ID: <70674dc7-5586-4183-8953-8095567e73df@gmail.com> (raw)
In-Reply-To: <20240113031352.2395118-3-visitorckw@gmail.com>

Hello,

it appears that this patch has caused suspend-to-idle regression:

https://gitlab.freedesktop.org/drm/amd/-/issues/3436

In brief, my laptop fails to suspend completely with the following error 
in the log:

Jun 18 12:42:20 kernel: amd_pmc AMDI0005:00: Last suspend didn't reach 
deepest state

Power consumption remains high enough that my battery has already 
unexpectedly drained twice before I noticed something was off.
I am not entirely sure how changes to sorting function can influence 
suspend, but it is what it is. 6.9.5 as shipped by Fedora 40 exhibits 
the issue, 6.9.5 as shipped by Fedora with the patch reverted does not.

Best regards,
Juliam

  reply	other threads:[~2024-06-20 15:36 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-13  3:13 [PATCH 0/2] lib/sort: Optimize the number of swaps and comparisons Kuan-Wei Chiu
2024-01-13  3:13 ` [PATCH 1/2] lib/sort: Optimize heapsort for equal elements in sift-down path Kuan-Wei Chiu
2024-01-13  3:13 ` [PATCH 2/2] lib/sort: Optimize heapsort with double-pop variation Kuan-Wei Chiu
2024-06-20 15:36   ` Julian Sikorski [this message]
2024-06-20 20:17     ` Mario Limonciello
2024-06-28 15:15     ` Linux regression tracking (Thorsten Leemhuis)
2024-06-28 17:10       ` Kuan-Wei Chiu
2024-06-29  5:03         ` Linux regression tracking (Thorsten Leemhuis)
     [not found]           ` <20240630210809.37550-1-visitorckw@gmail.com>
2024-06-30 21:13             ` [PATCH] ACPI: processor_idle: Fix invalid comparison with insertion sort for latency Kuan-Wei Chiu
2024-07-01  4:42               ` [PATCH v2] " Kuan-Wei Chiu
2024-07-01  5:06                 ` Greg KH
2024-07-01 15:17                 ` Mario Limonciello
2024-07-01 16:10                   ` [PATCH v3] " Kuan-Wei Chiu
2024-07-01 17:36                     ` Rafael J. Wysocki
2024-07-01 20:56                       ` [PATCH v4] " Kuan-Wei Chiu
2024-07-02  7:28                         ` Julian Sikorski
2024-07-02 12:59                           ` Mario Limonciello
2024-07-02 18:38                         ` Rafael J. Wysocki
2025-01-15  3:27     ` [PATCH 2/2] lib/sort: Optimize heapsort with double-pop variation Luke Jones
2025-01-15 12:49       ` Kuan-Wei Chiu

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