From: Minchan Kim <minchan@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Rik van Riel <riel@redhat.com>, Minchan Kim <minchan@kernel.org>,
Redmond <u93410091@gmail.com>,
"ZhaoJunmin Zhao(Junmin)" <zhaojunmin@huawei.com>,
Vinayak Menon <vinmenon@codeaurora.org>,
Juneho Choi <juno.choi@lge.com>,
Sangwoo Park <sangwoo2.park@lge.com>,
Chan Gyun Jeong <chan.jeong@lge.com>
Subject: [PATCH v1 0/3] per-process reclaim
Date: Mon, 13 Jun 2016 16:50:55 +0900 [thread overview]
Message-ID: <1465804259-29345-1-git-send-email-minchan@kernel.org> (raw)
Hi all,
http://thread.gmane.org/gmane.linux.kernel/1480728
I sent per-process reclaim patchset three years ago. Then, last
feedback from akpm was that he want to know real usecase scenario.
Since then, I got question from several embedded people of various
company "why it's not merged into mainline" and heard they have used
the feature as in-house patch and recenlty, I noticed android from
Qualcomm started to use it.
Of course, our product have used it and released it in real procuct.
Quote from Sangwoo Park <angwoo2.park@lge.com>
Thanks for the data, Sangwoo!
"
- Test scenaro
- platform: android
- target: MSM8952, 2G DDR, 16G eMMC
- scenario
retry app launch and Back Home with 16 apps and 16 turns
(total app launch count is 256)
- result:
resume count | cold launching count
-----------------------------------------------------------------
vanilla | 85 | 171
perproc reclaim | 184 | 72
"
Higher resume count is better because cold launching needs loading
lots of resource data which takes above 15 ~ 20 seconds for some
games while successful resume just takes 1~5 second.
As perproc reclaim way with new management policy, we could reduce
cold launching a lot(i.e., 171-72) so that it reduces app startup
a lot.
Another useful function from this feature is to make swapout easily
which is useful for testing swapout stress and workloads.
Thanks.
Cc: Redmond <u93410091@gmail.com>
Cc: ZhaoJunmin Zhao(Junmin) <zhaojunmin@huawei.com>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Cc: Juneho Choi <juno.choi@lge.com>
Cc: Sangwoo Park <sangwoo2.park@lge.com>
Cc: Chan Gyun Jeong <chan.jeong@lge.com>
Minchan Kim (3):
mm: vmscan: refactoring force_reclaim
mm: vmscan: shrink_page_list with multiple zones
mm: per-process reclaim
Documentation/filesystems/proc.txt | 15 ++++
fs/proc/base.c | 1 +
fs/proc/internal.h | 1 +
fs/proc/task_mmu.c | 149 +++++++++++++++++++++++++++++++++++++
include/linux/rmap.h | 4 +
mm/vmscan.c | 85 ++++++++++++++++-----
6 files changed, 235 insertions(+), 20 deletions(-)
--
1.9.1
next reply other threads:[~2016-06-13 7:51 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-13 7:50 Minchan Kim [this message]
2016-06-13 7:50 ` [PATCH v1 1/3] mm: vmscan: refactoring force_reclaim Minchan Kim
2016-06-13 7:50 ` [PATCH v1 2/3] mm: vmscan: shrink_page_list with multiple zones Minchan Kim
2016-06-13 7:50 ` [PATCH v1 3/3] mm: per-process reclaim Minchan Kim
2016-06-13 15:06 ` Johannes Weiner
2016-06-15 0:40 ` Minchan Kim
2016-06-16 11:07 ` Michal Hocko
2016-06-16 14:41 ` Johannes Weiner
2016-06-17 6:43 ` Minchan Kim
2016-06-17 7:24 ` Balbir Singh
2016-06-17 7:57 ` Vinayak Menon
2016-06-13 17:06 ` Rik van Riel
2016-06-15 1:01 ` Minchan Kim
2016-06-13 11:50 ` [PATCH v1 0/3] " Chen Feng
2016-06-13 12:22 ` ZhaoJunmin Zhao(Junmin)
2016-06-15 0:43 ` Minchan Kim
2016-06-13 13:29 ` Vinayak Menon
2016-06-15 0:57 ` Minchan Kim
2016-06-16 4:21 ` Vinayak Menon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1465804259-29345-1-git-send-email-minchan@kernel.org \
--to=minchan@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=chan.jeong@lge.com \
--cc=juno.choi@lge.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=riel@redhat.com \
--cc=sangwoo2.park@lge.com \
--cc=u93410091@gmail.com \
--cc=vinmenon@codeaurora.org \
--cc=zhaojunmin@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).