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Subject: Re: [PATCH mm] introduce reverse buddy concept to reduce buddy
 fragment
References: <1498821941-55771-1-git-send-email-zhouxianrong@huawei.com>
 <20170703074829.GD3217@dhcp22.suse.cz>
 <bfb807bf-92ce-27aa-d848-a6cab055447f@huawei.com>
 <20170703153307.GA11848@dhcp22.suse.cz>
 <5c9cf499-6f71-6dda-6378-7e9f27e6cd70@huawei.com>
 <20170704065215.GB12068@dhcp22.suse.cz>
From: zhouxianrong <zhouxianrong@huawei.com>
Message-ID: <b7ae6f54-5a67-8580-9ced-3ddbe5bd16af@huawei.com>
Date: Tue, 4 Jul 2017 15:00:08 +0800
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To: Michal Hocko <mhocko@kernel.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, vbabka@suse.cz, alexander.h.duyck@intel.com, mgorman@suse.de, l.stach@pengutronix.de, vdavydov.dev@gmail.com, hannes@cmpxchg.org, minchan@kernel.org, npiggin@gmail.com, kirill.shutemov@linux.intel.com, gi-oh.kim@profitbricks.com, luto@kernel.org, keescook@chromium.org, mark.rutland@arm.com, mingo@kernel.org, heiko.carstens@de.ibm.com, iamjoonsoo.kim@lge.com, rientjes@google.com, ming.ling@spreadtrum.com, jack@suse.cz, ebru.akagunduz@gmail.com, bigeasy@linutronix.de, Mi.Sophia.Wang@huawei.com, zhouxiyu@huawei.com, weidu.du@huawei.com, fanghua3@huawei.com, won.ho.park@huawei.com

i do the test again. after minutes i tell you the result.

On 2017/7/4 14:52, Michal Hocko wrote:
> On Tue 04-07-17 09:21:00, zhouxianrong wrote:
>> the test was done as follows:
>>
>> 1. the environment is android 7.0 and kernel is 4.1 and managed memory is 3.5GB
>
> There have been many changes in the compaction proper since than. Do you
> see the same problem with the current upstream kernel?
>
>> 2. every 4s startup one apk, total 100 more apks need to startup
>> 3. after finishing step 2, sample buddyinfo once and get the result
>
> How stable are those results?
>

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