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Subject: Re: [PATCH v4 00/17] Optimize list lru memory consumption
From:   xiaoqiang zhao <zhaoxiaoqiang007@gmail.com>
In-Reply-To: <YbyM17OMHlEmLfhH@casper.infradead.org>
Date:   Sun, 19 Dec 2021 17:58:55 +0800
Cc:     Muchun Song <songmuchun@bytedance.com>, akpm@linux-foundation.org,
        hannes@cmpxchg.org, mhocko@kernel.org, vdavydov.dev@gmail.com,
        shakeelb@google.com, guro@fb.com, shy828301@gmail.com,
        alexs@kernel.org, richard.weiyang@gmail.com, david@fromorbit.com,
        trond.myklebust@hammerspace.com, anna.schumaker@netapp.com,
        jaegeuk@kernel.org, chao@kernel.org, kari.argillander@gmail.com,
        linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org, linux-nfs@vger.kernel.org,
        zhengqi.arch@bytedance.com, duanxiongchun@bytedance.com,
        fam.zheng@bytedance.com, smuchun@gmail.com
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Message-Id: <0AF1C950-FA7A-4D70-9E92-72C7BE32293A@gmail.com>
References: <20211213165342.74704-1-songmuchun@bytedance.com>
 <745ddcd6-77e3-22e0-1f8e-e6b05c644eb4@gmail.com>
 <YbyM17OMHlEmLfhH@casper.infradead.org>
To:     Matthew Wilcox <willy@infradead.org>
Precedence: bulk


> 2021=E5=B9=B412=E6=9C=8817=E6=97=A5 =E4=B8=8B=E5=8D=889:12=EF=BC=8CMatth=
ew Wilcox <willy@infradead.org> =E5=86=99=E9=81=93=EF=BC=9A
>=20
> On Fri, Dec 17, 2021 at 06:05:00PM +0800, xiaoqiang zhao wrote:
>>=20
>>=20
>> =E5=9C=A8 2021/12/14 0:53, Muchun Song =E5=86=99=E9=81=93:
>>> This series is based on Linux 5.16-rc3.
>>>=20
>>> In our server, we found a suspected memory leak problem. The =
kmalloc-32
>>> consumes more than 6GB of memory. Other kmem_caches consume less =
than 2GB
>>> memory.
>>>=20
>>> After our in-depth analysis, the memory consumption of kmalloc-32 =
slab
>>> cache is the cause of list_lru_one allocation.
>>=20
>> IIUC, you mean: "the memory consumption of kmalloc-32 slab cache is
>> caused by list_lru_one allocation"
>>=20
>=20
> Please trim the unnecessary parts.  You quoted almost 200 extra lines
> after this that I (and everybody else reading) have to look through
> to see if you said anything else.

Sorry for the inconvenience, WILL do next time ;-)=