From: Dmitry Vyukov <dvyukov@google.com>
To: kernel test robot <xiaolong.ye@intel.com>
Cc: Alexander Potapenko <glider@google.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Andrey Konovalov <adech.fo@gmail.com>,
Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
Konstantin Serebryany <kcc@google.com>,
Dmitry Chernenkov <dmitryc@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
lkp@01.org
Subject: Re: [lkp] [mm] 55834c5909: boot-slabinfo.num_objs +31.9% increasement
Date: Mon, 30 May 2016 09:53:25 +0200 [thread overview]
Message-ID: <CACT4Y+ZF_ES+qfZDS-dvQfoLfKd-Ca1aJobs4a=8LMONwTcSeQ@mail.gmail.com> (raw)
In-Reply-To: <20160530021758.GG1689@yexl-desktop>
On Mon, May 30, 2016 at 4:17 AM, kernel test robot
<xiaolong.ye@intel.com> wrote:
>
> FYI, we noticed boot-slabinfo.num_objs +31.9% increasement due to commit:
>
> commit 55834c59098d0c5a97b0f3247e55832b67facdcf ("mm: kasan: initial memory quarantine implementation")
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>
> in testcase: boot
> on test machine: vm-lkp-wsx03-2G: 2 threads qemu-system-x86_64 -enable-kvm -cpu host with 2G memory
> with following parameters: sleep=1
>
>
> Details are as below:
> -------------------------------------------------------------------------------------------------->
>
>
> =========================================================================================
> compiler/kconfig/rootfs/sleep/tbox_group/testcase:
> gcc-6/x86_64-randconfig-s4-05280557/debian-x86_64-2015-02-07.cgz/1/vm-lkp-wsx03-2G/boot
>
> commit:
> b8f1a75d61d8405a753380c6fb17ba84a5603cd4
> 55834c59098d0c5a97b0f3247e55832b67facdcf
>
> b8f1a75d61d8405a 55834c59098d0c5a97b0f3247e
> ---------------- --------------------------
> %stddev %change %stddev
> \ | \
> 165450 ± 0% +31.9% 218176 ± 1% boot-slabinfo.num_objs
> 19095 ± 5% +104.3% 39013 ± 3% boot-slabinfo.num_pages
> 107.27 ± 2% +14.1% 122.43 ± 13% boot-time.boot
> 97.13 ± 1% +4.3% 101.31 ± 1% boot-time.idle
> 1105076 ± 0% -7.2% 1025056 ± 0% boot-meminfo.MemFree
> 36269 ± 12% +215.7% 114517 ± 5% boot-meminfo.SUnreclaim
> 76469 ± 5% +104.5% 156343 ± 4% boot-meminfo.Slab
>
>
>
> boot-slabinfo.num_objs
>
> 230000 ++-----------------------------------------------------------------+
> | O O |
> 220000 ++O O O OO OO O O OO OO |
> OO O OOOO O OOOOOOO O O OO O |
> 210000 ++ |
> | |
> 200000 ++ |
> | |
> 190000 ++ |
> | |
> 180000 ++ |
> | |
> 170000 ++ |
> ********************************************************************
> 160000 ++-----------------------------------------------------------------+
>
>
> boot-slabinfo.num_pages
>
> 45000 ++-------------O----------------------------------------------------+
> | O O OO O O O O OOO |
> 40000 +O OOO OO OO O O |
> O OO O O O O O OO O O |
> | O O O |
> 35000 ++ |
> | |
> 30000 ++ |
> | |
> 25000 ++ |
> | |
> | * * *
> 20000 +* * * ** * * * * * * ** **** ** * * * * * * :: * *** *|
> * * ** ** * * ** *** * ** *** * * * * * ** *** * ** ** ** * * |
> 15000 ++------------------------------------------------------------------+
>
>
> [*] bisect-good sample
> [O] bisect-bad sample
Hi Xiaolong,
It is with CONFIG_KASAN=y? If yes, then increased memory usage is expected.
next prev parent reply other threads:[~2016-05-30 7:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-30 2:17 [lkp] [mm] 55834c5909: boot-slabinfo.num_objs +31.9% increasement kernel test robot
2016-05-30 7:53 ` Dmitry Vyukov [this message]
2016-05-30 8:18 ` Ye Xiaolong
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='CACT4Y+ZF_ES+qfZDS-dvQfoLfKd-Ca1aJobs4a=8LMONwTcSeQ@mail.gmail.com' \
--to=dvyukov@google.com \
--cc=adech.fo@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=cl@linux.com \
--cc=dmitryc@google.com \
--cc=glider@google.com \
--cc=iamjoonsoo.kim@lge.com \
--cc=kcc@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=lkp@01.org \
--cc=penberg@kernel.org \
--cc=rientjes@google.com \
--cc=rostedt@goodmis.org \
--cc=ryabinin.a.a@gmail.com \
--cc=torvalds@linux-foundation.org \
--cc=xiaolong.ye@intel.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).