linux-kernel - Re: [PATCH v4 00/17] Optimize list lru memory consumption

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Date:   Sun, 19 Dec 2021 17:58:55 +0800
From:   xiaoqiang zhao <zhaoxiaoqiang007@...il.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Muchun Song <songmuchun@...edance.com>, akpm@...ux-foundation.org,
        hannes@...xchg.org, mhocko@...nel.org, vdavydov.dev@...il.com,
        shakeelb@...gle.com, guro@...com, shy828301@...il.com,
        alexs@...nel.org, richard.weiyang@...il.com, david@...morbit.com,
        trond.myklebust@...merspace.com, anna.schumaker@...app.com,
        jaegeuk@...nel.org, chao@...nel.org, kari.argillander@...il.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-nfs@...r.kernel.org,
        zhengqi.arch@...edance.com, duanxiongchun@...edance.com,
        fam.zheng@...edance.com, smuchun@...il.com
Subject: Re: [PATCH v4 00/17] Optimize list lru memory consumption



> 2021年12月17日 下午9:12，Matthew Wilcox <willy@...radead.org> 写道：
> 
> On Fri, Dec 17, 2021 at 06:05:00PM +0800, xiaoqiang zhao wrote:
>> 
>> 
>> 在 2021/12/14 0:53, Muchun Song 写道:
>>> This series is based on Linux 5.16-rc3.
>>> 
>>> 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.
>>> 
>>> After our in-depth analysis, the memory consumption of kmalloc-32 slab
>>> cache is the cause of list_lru_one allocation.
>> 
>> IIUC, you mean: "the memory consumption of kmalloc-32 slab cache is
>> caused by list_lru_one allocation"
>> 
> 
> 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 ;-)