From: "Zhijian Li (Fujitsu)" <lizhijian@fujitsu.com>
To: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Yasunori Gotou (Fujitsu)" <y-goto@fujitsu.com>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
"lkp@intel.com" <lkp@intel.com>
Subject: Re: [PATCH RFC v2] mm: memory-tiering: Fix PGPROMOTE_CANDIDATE accounting
Date: Wed, 25 Jun 2025 07:39:58 +0000 [thread overview]
Message-ID: <a2a57ee3-949a-44d7-b564-3236ac9e3f8d@fujitsu.com> (raw)
In-Reply-To: <877c10mju3.fsf@DESKTOP-5N7EMDA>
On 25/06/2025 14:11, Huang, Ying wrote:
>> V2:
>> Fix compiling error # Reported by LKP
>>
>> As Ying suggested, we need to assess whether this change causes regression.
>> However, considering the stringent conditions this patch involves,
>> properly evaluating it may be challenging, as the outcomes depend on your
>> perspective. Much like in a zero-sum game, if someone benefits, another
>> might lose.
>>
>> If there are subsequent results, I will update them here.
> I understand that it's hard to identify all possible regressions.
> However, at least done some test to check some common use cases?
>
Yes, I'm working on it. I'm currently using `pmbench` for testing,
the approach[1] you took when introducing the rate limit.
And, I also hope LKP can run tests concurrently.
[1] https://lore.kernel.org/all/20220713083954.34196-1-ying.huang@intel.com/t/#u
next prev parent reply other threads:[~2025-06-25 7:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-25 2:13 [PATCH RFC v2] mm: memory-tiering: Fix PGPROMOTE_CANDIDATE accounting Li Zhijian
2025-06-25 6:11 ` Huang, Ying
2025-06-25 7:39 ` Zhijian Li (Fujitsu) [this message]
2025-06-30 2:11 ` Zhijian Li (Fujitsu)
2025-07-08 1:14 ` Huang, Ying
2025-07-08 2:26 ` Zhijian Li (Fujitsu)
2025-07-08 2:47 ` Huang, Ying
2025-07-08 6:40 ` Zhijian Li (Fujitsu)
2025-07-08 8:56 ` Huang, Ying
2025-07-09 1:03 ` Zhijian Li (Fujitsu)
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