From: Shakeel Butt <shakeel.butt@linux.dev>
To: Oliver Sang <oliver.sang@intel.com>
Cc: "Qi Zheng" <qi.zheng@linux.dev>,
oe-lkp@lists.linux.dev, lkp@intel.com,
linux-kernel@vger.kernel.org,
"Andrew Morton" <akpm@linux-foundation.org>,
"David Carlier" <devnexen@gmail.com>,
"Allen Pais" <apais@linux.microsoft.com>,
"Axel Rasmussen" <axelrasmussen@google.com>,
"Baoquan He" <bhe@redhat.com>,
"Chengming Zhou" <chengming.zhou@linux.dev>,
"Chen Ridong" <chenridong@huawei.com>,
"David Hildenbrand" <david@kernel.org>,
"Hamza Mahfooz" <hamzamahfooz@linux.microsoft.com>,
"Harry Yoo" <harry.yoo@oracle.com>,
"Hugh Dickins" <hughd@google.com>,
"Imran Khan" <imran.f.khan@oracle.com>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Kamalesh Babulal" <kamalesh.babulal@oracle.com>,
"Lance Yang" <lance.yang@linux.dev>,
"Liam Howlett" <Liam.Howlett@oracle.com>,
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"Michal Hocko" <mhocko@suse.com>,
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"Mike Rapoport" <rppt@kernel.org>,
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"Yuanchu Xie" <yuanchu@google.com>, "Zi Yan" <ziy@nvidia.com>,
"Usama Arif" <usama.arif@linux.dev>,
cgroups@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [linus:master] [mm] 01b9da291c: stress-ng.switch.ops_per_sec 67.7% regression
Date: Tue, 19 May 2026 21:12:54 -0700 [thread overview]
Message-ID: <ag00nBP_zNa9RWxm@linux.dev> (raw)
In-Reply-To: <ag0fyi8GjHHf8bdC@xsang-OptiPlex-9020>
On Wed, May 20, 2026 at 10:43:22AM +0800, Oliver Sang wrote:
> hi, Shakeel,
>
> On Tue, May 19, 2026 at 07:22:52AM -0700, Shakeel Butt wrote:
> > Hi Oliver,
> >
>
> [...]
>
> >
> > > > >
> > > > > Also I am rethinking the approach, so I will send a prototype in response on
> > > > > this email for which I will need your help in testing.
> > > >
> > > > Hi Oliver, can you please test the following patch?
> > >
> > > got it. will change to test following patch. and this looks quite different
> > > with v2 or v3, so if you still want us to test v3, please let me know. thanks!
> > >
> >
> > No need to test v3 as it is similar to v2. Please test the following patch as it
> > is a direction I want to pursue and wanted an early signal if this is the right
> > direction.
>
> FYI. in our tests, the following patch also recovers the regresion.
>
> Tested-by: kernel test robot <oliver.sang@intel.com>
Thanks a lot. I will send out the formal patch with your tested-by tag.
prev parent reply other threads:[~2026-05-20 4:13 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 12:56 [linus:master] [mm] 01b9da291c: stress-ng.switch.ops_per_sec 67.7% regression kernel test robot
2026-05-12 16:03 ` Shakeel Butt
2026-05-13 2:10 ` Qi Zheng
2026-05-13 13:49 ` Shakeel Butt
2026-05-13 14:27 ` Shakeel Butt
2026-05-14 7:46 ` Qi Zheng
2026-05-14 13:40 ` Shakeel Butt
2026-05-15 7:37 ` Qi Zheng
2026-05-15 17:09 ` Shakeel Butt
2026-05-17 12:55 ` Oliver Sang
2026-05-17 19:38 ` Shakeel Butt
2026-05-18 16:39 ` Shakeel Butt
2026-05-18 17:54 ` Shakeel Butt
2026-05-19 5:04 ` Oliver Sang
2026-05-19 14:22 ` Shakeel Butt
2026-05-20 2:43 ` Oliver Sang
2026-05-20 4:12 ` Shakeel Butt [this message]
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