From: "Huang, Ying" <ying.huang@intel.com>
To: Yang Shi <shy828301@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>, Rik van Riel <riel@surriel.com>,
Mel Gorman <mgorman@suse.de>,
Peter Zijlstra <peterz@infradead.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
Zi Yan <ziy@nvidia.com>, Wei Xu <weixugc@google.com>,
osalvador <osalvador@suse.de>, Shakeel Butt <shakeelb@google.com>,
Linux MM <linux-mm@kvack.org>
Subject: Re: [PATCH -V8 2/6] memory tiering: add page promotion counter
Date: Wed, 15 Sep 2021 09:53:16 +0800 [thread overview]
Message-ID: <87y27y1u5v.fsf@yhuang6-desk2.ccr.corp.intel.com> (raw)
In-Reply-To: <CAHbLzkqhA0YJncxYokViaAa1Eo5RuMjiRmqGYb_=QAniYBd-bA@mail.gmail.com> (Yang Shi's message of "Tue, 14 Sep 2021 15:41:49 -0700")
Yang Shi <shy828301@gmail.com> writes:
> On Mon, Sep 13, 2021 at 6:37 PM Huang Ying <ying.huang@intel.com> wrote:
>>
>> To distinguish the number of the memory tiering promoted pages from
>> that of the originally inter-socket NUMA balancing migrated pages.
>> The counter is per-node (count in the target node). So this can be
>> used to identify promotion imbalance among the NUMA nodes.
>
> I'd like this patch be the very first one in the series. Since we need
> such counters regardless of all the optimizations. And actually I
> think this patch could go with the merged "migration in lieu of
> discard" patchset.
Yes. This sounds reasonable. I will change this in the next version.
Best Regards,
Huang, Ying
next prev parent reply other threads:[~2021-09-15 1:53 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 1:36 [PATCH -V8 0/6] NUMA balancing: optimize memory placement for memory tiering system Huang Ying
2021-09-14 1:36 ` [PATCH -V8 1/6] NUMA balancing: optimize page " Huang Ying
2021-09-14 22:40 ` Yang Shi
2021-09-15 1:44 ` Huang, Ying
2021-09-15 2:47 ` Yang Shi
2021-09-15 3:58 ` Huang, Ying
2021-09-15 21:32 ` Yang Shi
2021-09-16 1:44 ` Huang, Ying
2021-09-17 0:47 ` Yang Shi
2021-09-17 1:24 ` Huang, Ying
2021-09-14 1:36 ` [PATCH -V8 2/6] memory tiering: add page promotion counter Huang Ying
2021-09-14 22:41 ` Yang Shi
2021-09-15 1:53 ` Huang, Ying [this message]
2021-09-14 1:36 ` [PATCH -V8 3/6] memory tiering: skip to scan fast memory Huang Ying
2021-09-14 1:36 ` [PATCH -V8 4/6] memory tiering: hot page selection with hint page fault latency Huang Ying
2021-09-14 1:37 ` [PATCH -V8 5/6] memory tiering: rate limit NUMA migration throughput Huang Ying
2021-09-14 1:37 ` [PATCH -V8 6/6] memory tiering: adjust hot threshold automatically Huang Ying
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