From: Andrew Morton <akpm@linux-foundation.org>
To: Patryk Kowalczyk <patryk@kowalczyk.ws>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>,
hughd@google.com, ville.syrjala@linux.intel.com,
david@redhat.com, willy@infradead.org,
maarten.lankhorst@linux.intel.com, mripard@kernel.org,
tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch,
jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com,
rodrigo.vivi@intel.com, tursulin@ursulin.net,
christian.koenig@amd.com, ray.huang@amd.com,
matthew.auld@intel.com, matthew.brost@intel.com,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH] mm: shmem: fix the shmem large folio allocation for the i915 driver
Date: Mon, 28 Jul 2025 15:16:04 -0700 [thread overview]
Message-ID: <20250728151604.e834daa64e8c816aeffba975@linux-foundation.org> (raw)
In-Reply-To: <CAJCW39+AS5poKu3A4Y88pH2y6CWbE0WnGZfe3kL99W3sJZjreA@mail.gmail.com>
On Mon, 28 Jul 2025 23:59:22 +0200 Patryk Kowalczyk <patryk@kowalczyk.ws> wrote:
> In my tests, the performance drop ranges from a few percent up to 13% in
> Unigine Superposition
> under heavy memory usage on the CPU Core Ultra 155H with the Xe 128 EU GPU.
> Other users have reported performance impact up to 30% on certain workloads.
> Please find more in the regressions reports:
> https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/14645
> https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13845
>
> I believe the change should be backported to all active kernel branches
> after version 6.12.
OK, thanks. I added this (important!) info to the changelog and I
added a cc:stable, requesting a backport into everything which has
acd7ccb284b8.
I'll place this in mm.git's mm-hotfixes-unstable branch with a plan to
upstream it sometime during the 6.17-rcX cycle.
next prev parent reply other threads:[~2025-07-28 22:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-28 8:03 Baolin Wang
2025-07-28 21:44 ` Andrew Morton
2025-07-28 21:59 ` Patryk Kowalczyk
2025-07-28 22:16 ` Andrew Morton [this message]
2025-07-28 22:08 ` Patryk Kowalczyk
2025-07-30 6:54 ` Hugh Dickins
2025-07-30 7:46 ` Baolin Wang
2025-07-30 16:11 ` Patryk Kowalczyk
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