From: Huang Ying <ying.huang@intel.com>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>, LKP ML <lkp@01.org>
Subject: [LKP] [x86, mm] 982792c782e: -12.3% boot-meminfo.SUnreclaim
Date: Thu, 18 Dec 2014 16:15:47 +0800 [thread overview]
Message-ID: <1418890547.26403.4.camel@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 2533 bytes --]
FYI, we noticed the below changes on
commit 982792c782ef337381e982fd2047391886f89693 ("x86, mm: probe memory block size for generic x86 64bit")
I think this is use memory size reduction, so should be a good thing.
testbox/testcase/testparams: brickland3/boot/1
c46a7c817e662a82 982792c782ef337381e982fd20
---------------- --------------------------
%stddev %change %stddev
\ | \
128348 ± 0% -12.3% 112541 ± 1% boot-meminfo.SUnreclaim
903719 ± 0% -13.9% 778082 ± 0% boot-slabinfo.num_objs
169283 ± 0% -9.7% 152819 ± 1% boot-meminfo.Slab
45691 ± 0% -8.2% 41954 ± 1% boot-slabinfo.num_pages
brickland3: Brickland Ivy Bridge-EX
Memory: 512G
boot-slabinfo.num_objs
940000 ++-----------------------------------------------------------------+
920000 ++ *. * |
*.**.**.*. : * + *.* .*.**. *.*. .* .* |
900000 ++ * *.* * * ** * * |
880000 ++ |
| |
860000 ++ |
840000 ++ |
820000 ++ |
| |
800000 O+ O O |
780000 ++OO O O OO OO OO O O O OO O O OO O
| OO O O OO O O OO O O O O OO |
760000 ++ O O O O |
740000 ++-----------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
To reproduce:
apt-get install ruby ruby-oj
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/setup-local job.yaml # the job file attached in this email
bin/run-local job.yaml
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Huang, Ying
[-- Attachment #2: job.yaml --]
[-- Type: text/plain, Size: 826 bytes --]
---
testcase: boot
boot-meminfo:
boot-slabinfo:
boot-memory:
memmap:
bootmem:
default_monitors:
boottime:
kernel-size:
sleep: 1
kconfig: x86_64-rhel
kernel: "/kernel/x86_64-rhel/19583ca584d6f574384e17fe7613dfaeadcdc4a6/vmlinuz-3.16.0"
commit: 19583ca584d6f574384e17fe7613dfaeadcdc4a6
user: lkp
queue: wfg
testbox: brickland3
branch: linus/master
enqueue_time: 2014-09-25 21:56:15.069539322 +08:00
result_root: "/result/brickland3/boot/1/debian-x86_64.cgz/x86_64-rhel/19583ca584d6f574384e17fe7613dfaeadcdc4a6/0"
job_file: "/lkp/scheduled/brickland3/wfg_boot-1-x86_64-rhel-19583ca584d6f574384e17fe7613dfaeadcdc4a6-0.yaml"
dequeue_time: 2014-09-25 22:00:26.067849442 +08:00
job_state: finished
loadavg: 1.09 0.29 0.10 1/979 3413
start_time: '1411653710'
end_time: '1411653711'
version: "/lkp/lkp/.src-20140925-212910"
[-- Attachment #3: Type: text/plain, Size: 89 bytes --]
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