* [LKP] [ftrace] fef5aeeee9e: -27.2% boot-slabinfo.num_objs
@ 2014-12-23 3:10 Huang Ying
2014-12-23 13:32 ` Steven Rostedt
0 siblings, 1 reply; 3+ messages in thread
From: Huang Ying @ 2014-12-23 3:10 UTC (permalink / raw)
To: Steven Rostedt (Red Hat); +Cc: LKML, LKP ML
[-- Attachment #1: Type: text/plain, Size: 2262 bytes --]
FYI, we noticed the below changes on
commit fef5aeeee9e3717e7aea991a7ae9ff6a7a2d4c85 ("ftrace: Replace tramp_hash with old_*_hash to save space")
testbox/testcase/testparams: vm-kbuild-4G/boot/1
e1effa0144a1ddf5 fef5aeeee9e3717e7aea991a7a
---------------- --------------------------
%stddev %change %stddev
\ | \
437752 ± 0% -27.2% 318545 ± 0% boot-slabinfo.num_objs
vm-kbuild-4G: qemu-system-x86_64 -enable-kvm
Memory: 4G
boot-slabinfo.num_objs
440000 *+*--*-*-*------*----*-*-*--*--------*-*--*-*-*--*-----------------+
| *.* *. *.*..* |
420000 ++ |
| |
400000 ++ |
| |
380000 ++ |
| |
360000 ++ |
| |
340000 ++ |
| |
320000 O+O O O O O O O O O O O O O O O O O O O O O O O O O O
| O O O |
300000 ++-----------------------------------------------------------------+
[*] 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: 1154 bytes --]
---
testcase: boot
default_monitors:
boottime:
kernel-size:
default_watchdogs:
watch-oom:
watchdog:
cpufreq_governor:
model: qemu-system-x86_64 -enable-kvm
nr_vm: 8
nr_cpu: 4
memory: 4G
rootfs: debian-x86_64.cgz
hdd_partitions: "/dev/vda /dev/vdb /dev/vdc /dev/vdd"
swap_partitions: "/dev/vde"
boot-meminfo:
boot-slabinfo:
boot-memory:
memmap:
bootmem:
sleep: 1
branch: linus/master
commit: b2776bf7149bddd1f4161f14f79520f17fc1d71d
testbox: vm-kbuild-4G-1
tbox_group: vm-kbuild-4G
kconfig: x86_64-allyesdebian
enqueue_time: 2014-12-15 07:00:22.267392531 +08:00
kernel: "/kernel/x86_64-allyesdebian/b2776bf7149bddd1f4161f14f79520f17fc1d71d/vmlinuz-3.18.0"
user: lkp
queue: rand
result_root: "/result/vm-kbuild-4G/boot/1/debian-x86_64.cgz/x86_64-allyesdebian/b2776bf7149bddd1f4161f14f79520f17fc1d71d/0"
job_file: "/lkp/scheduled/vm-kbuild-4G-1/rand_boot-1-debian-x86_64.cgz-x86_64-allyesdebian-b2776bf7149bddd1f4161f14f79520f17fc1d71d-0.yaml"
dequeue_time: 2014-12-15 07:01:52.000092900 +08:00
job_state: finished
loadavg: 2.54 1.47 0.58 2/196 5734
start_time: '1418598302'
end_time: '1418598303'
version: "/lkp/lkp/.src-20141214-133531"
[-- Attachment #3: Type: text/plain, Size: 89 bytes --]
_______________________________________________
LKP mailing list
LKP@linux.intel.com
\r
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [LKP] [ftrace] fef5aeeee9e: -27.2% boot-slabinfo.num_objs
2014-12-23 3:10 [LKP] [ftrace] fef5aeeee9e: -27.2% boot-slabinfo.num_objs Huang Ying
@ 2014-12-23 13:32 ` Steven Rostedt
2014-12-29 2:28 ` Huang Ying
0 siblings, 1 reply; 3+ messages in thread
From: Steven Rostedt @ 2014-12-23 13:32 UTC (permalink / raw)
To: Huang Ying; +Cc: LKML, LKP ML
On Tue, 23 Dec 2014 11:10:17 +0800
Huang Ying <ying.huang@intel.com> wrote:
> FYI, we noticed the below changes on
>
> commit fef5aeeee9e3717e7aea991a7ae9ff6a7a2d4c85 ("ftrace: Replace tramp_hash with old_*_hash to save space")
>
>
> testbox/testcase/testparams: vm-kbuild-4G/boot/1
>
> e1effa0144a1ddf5 fef5aeeee9e3717e7aea991a7a
> ---------------- --------------------------
> %stddev %change %stddev
> \ | \
> 437752 ± 0% -27.2% 318545 ± 0% boot-slabinfo.num_objs
>
> vm-kbuild-4G: qemu-system-x86_64 -enable-kvm
> Memory: 4G
I have no idea what this test does. Is this good or bad? Is that -27.2%
a performance regression, or memory regression?
-- Steve
>
>
>
> boot-slabinfo.num_objs
>
> 440000 *+*--*-*-*------*----*-*-*--*--------*-*--*-*-*--*-----------------+
> | *.* *. *.*..* |
> 420000 ++ |
> | |
> 400000 ++ |
> | |
> 380000 ++ |
> | |
> 360000 ++ |
> | |
> 340000 ++ |
> | |
> 320000 O+O O O O O O O O O O O O O O O O O O O O O O O O O O
> | O O O |
> 300000 ++-----------------------------------------------------------------+
>
> [*] 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
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [LKP] [ftrace] fef5aeeee9e: -27.2% boot-slabinfo.num_objs
2014-12-23 13:32 ` Steven Rostedt
@ 2014-12-29 2:28 ` Huang Ying
0 siblings, 0 replies; 3+ messages in thread
From: Huang Ying @ 2014-12-29 2:28 UTC (permalink / raw)
To: Steven Rostedt; +Cc: LKML, LKP ML
On Tue, 2014-12-23 at 08:32 -0500, Steven Rostedt wrote:
> On Tue, 23 Dec 2014 11:10:17 +0800
> Huang Ying <ying.huang@intel.com> wrote:
>
> > FYI, we noticed the below changes on
> >
> > commit fef5aeeee9e3717e7aea991a7ae9ff6a7a2d4c85 ("ftrace: Replace tramp_hash with old_*_hash to save space")
> >
> >
> > testbox/testcase/testparams: vm-kbuild-4G/boot/1
> >
> > e1effa0144a1ddf5 fef5aeeee9e3717e7aea991a7a
> > ---------------- --------------------------
> > %stddev %change %stddev
> > \ | \
> > 437752 ± 0% -27.2% 318545 ± 0% boot-slabinfo.num_objs
> >
> > vm-kbuild-4G: qemu-system-x86_64 -enable-kvm
> > Memory: 4G
>
> I have no idea what this test does. Is this good or bad? Is that -27.2%
> a performance regression, or memory regression?
IMO, it is good. Memory usage is reduced.
Best Regards,
Huang, Ying
> -- Steve
>
>
> >
> >
> >
> > boot-slabinfo.num_objs
> >
> > 440000 *+*--*-*-*------*----*-*-*--*--------*-*--*-*-*--*-----------------+
> > | *.* *. *.*..* |
> > 420000 ++ |
> > | |
> > 400000 ++ |
> > | |
> > 380000 ++ |
> > | |
> > 360000 ++ |
> > | |
> > 340000 ++ |
> > | |
> > 320000 O+O O O O O O O O O O O O O O O O O O O O O O O O O O
> > | O O O |
> > 300000 ++-----------------------------------------------------------------+
> >
> > [*] 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
> >
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2014-12-29 2:28 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-12-23 3:10 [LKP] [ftrace] fef5aeeee9e: -27.2% boot-slabinfo.num_objs Huang Ying
2014-12-23 13:32 ` Steven Rostedt
2014-12-29 2:28 ` Huang Ying
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox