* [ACPI / hotplug / PCI] 1b360f44d00: -80.9% vm-scalability.stddev
@ 2014-03-05 8:23 Fengguang Wu
2014-03-05 12:58 ` Rafael J. Wysocki
0 siblings, 1 reply; 3+ messages in thread
From: Fengguang Wu @ 2014-03-05 8:23 UTC (permalink / raw)
To: Rafael J. Wysocki; +Cc: LKML, lkp
Hi Rafael,
I don't know why but we are glad to find the below changes on commit
1b360f44d009059e446532f29c1a889951e72667 ("ACPI / hotplug / PCI: Fix bridge removal race in handle_hotplug_event()")
test case: brickland2/micro/vm-scalability/300s-anon-r-rand-mt
d42f5da23400833 1b360f44d009059e446532f29
--------------- -------------------------
3.54 ~164% -80.9% 0.68 ~37% TOTAL vm-scalability.stddev
14177 ~ 7% -22.1% 11040 ~ 7% TOTAL numa-meminfo.node0.SReclaimable
3543 ~ 7% -22.1% 2759 ~ 7% TOTAL numa-vmstat.node0.nr_slab_reclaimable
776196 ~ 6% -10.0% 698893 ~ 5% TOTAL numa-numastat.node2.local_node
776196 ~ 6% -10.0% 698894 ~ 5% TOTAL numa-numastat.node2.numa_hit
The ~XX% numbers are stddev percent.
The [+-]XX% is change percent.
The below graph shows all samples collected during the bisect
[*] bisect-good
[O] bisect-bad ("bad" in the sense of bisect)
In which you can see the stableness of the change and bisect.
vm-scalability.stddev
16 ++--------------------------------------------------------------------+
| * |
14 ++ : |
12 ++ : |
| :: |
10 ++ :: |
| :: |
8 ++ :: |
| : : |
6 ++ * : : |
4 ++ * * :: : : |
| +: : + * : : : : |
2 ++*. *. .* : : * .*. + : : : .* : : |
|+ * + * *. .* O *.*.*. .** O.**.O.* O: *.O.* O OO.* + : *.|
0 O+O-OO-O-O-O-OO-O-O---OO-O-O-O-OO-O---OO-*-O---OO-*-O------O-O-*-*----*
Thanks,
Fengguang
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [ACPI / hotplug / PCI] 1b360f44d00: -80.9% vm-scalability.stddev
2014-03-05 8:23 [ACPI / hotplug / PCI] 1b360f44d00: -80.9% vm-scalability.stddev Fengguang Wu
@ 2014-03-05 12:58 ` Rafael J. Wysocki
2014-03-05 12:49 ` Fengguang Wu
0 siblings, 1 reply; 3+ messages in thread
From: Rafael J. Wysocki @ 2014-03-05 12:58 UTC (permalink / raw)
To: Fengguang Wu; +Cc: Rafael J. Wysocki, LKML, lkp
On Wednesday, March 05, 2014 04:23:36 PM Fengguang Wu wrote:
> Hi Rafael,
Hi,
> I don't know why but we are glad to find the below changes on commit
Do I understand correcty that you mean you're seeing improvement?
Either way, if the test below doesn't involve hotplug or device removal via
sysfs, I have no explanation ...
> 1b360f44d009059e446532f29c1a889951e72667 ("ACPI / hotplug / PCI: Fix bridge removal race in handle_hotplug_event()")
>
> test case: brickland2/micro/vm-scalability/300s-anon-r-rand-mt
>
> d42f5da23400833 1b360f44d009059e446532f29
> --------------- -------------------------
> 3.54 ~164% -80.9% 0.68 ~37% TOTAL vm-scalability.stddev
> 14177 ~ 7% -22.1% 11040 ~ 7% TOTAL numa-meminfo.node0.SReclaimable
> 3543 ~ 7% -22.1% 2759 ~ 7% TOTAL numa-vmstat.node0.nr_slab_reclaimable
> 776196 ~ 6% -10.0% 698893 ~ 5% TOTAL numa-numastat.node2.local_node
> 776196 ~ 6% -10.0% 698894 ~ 5% TOTAL numa-numastat.node2.numa_hit
>
> The ~XX% numbers are stddev percent.
> The [+-]XX% is change percent.
>
> The below graph shows all samples collected during the bisect
>
> [*] bisect-good
> [O] bisect-bad ("bad" in the sense of bisect)
>
> In which you can see the stableness of the change and bisect.
>
> vm-scalability.stddev
>
> 16 ++--------------------------------------------------------------------+
> | * |
> 14 ++ : |
> 12 ++ : |
> | :: |
> 10 ++ :: |
> | :: |
> 8 ++ :: |
> | : : |
> 6 ++ * : : |
> 4 ++ * * :: : : |
> | +: : + * : : : : |
> 2 ++*. *. .* : : * .*. + : : : .* : : |
> |+ * + * *. .* O *.*.*. .** O.**.O.* O: *.O.* O OO.* + : *.|
> 0 O+O-OO-O-O-O-OO-O-O---OO-O-O-O-OO-O---OO-*-O---OO-*-O------O-O-*-*----*
>
>
> Thanks,
> Fengguang
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [ACPI / hotplug / PCI] 1b360f44d00: -80.9% vm-scalability.stddev
2014-03-05 12:58 ` Rafael J. Wysocki
@ 2014-03-05 12:49 ` Fengguang Wu
0 siblings, 0 replies; 3+ messages in thread
From: Fengguang Wu @ 2014-03-05 12:49 UTC (permalink / raw)
To: Rafael J. Wysocki; +Cc: Rafael J. Wysocki, LKML, lkp
On Wed, Mar 05, 2014 at 01:58:54PM +0100, Rafael J. Wysocki wrote:
> On Wednesday, March 05, 2014 04:23:36 PM Fengguang Wu wrote:
> > Hi Rafael,
>
> Hi,
>
> > I don't know why but we are glad to find the below changes on commit
>
> Do I understand correcty that you mean you're seeing improvement?
Yes - the random multi-thread malloc test's deviation is reduced noticeably.
> Either way, if the test below doesn't involve hotplug or device removal via
> sysfs, I have no explanation ...
OK.
Thanks,
Fengguang
> > 1b360f44d009059e446532f29c1a889951e72667 ("ACPI / hotplug / PCI: Fix bridge removal race in handle_hotplug_event()")
> >
> > test case: brickland2/micro/vm-scalability/300s-anon-r-rand-mt
> >
> > d42f5da23400833 1b360f44d009059e446532f29
> > --------------- -------------------------
> > 3.54 ~164% -80.9% 0.68 ~37% TOTAL vm-scalability.stddev
> > 14177 ~ 7% -22.1% 11040 ~ 7% TOTAL numa-meminfo.node0.SReclaimable
> > 3543 ~ 7% -22.1% 2759 ~ 7% TOTAL numa-vmstat.node0.nr_slab_reclaimable
> > 776196 ~ 6% -10.0% 698893 ~ 5% TOTAL numa-numastat.node2.local_node
> > 776196 ~ 6% -10.0% 698894 ~ 5% TOTAL numa-numastat.node2.numa_hit
> >
> > The ~XX% numbers are stddev percent.
> > The [+-]XX% is change percent.
> >
> > The below graph shows all samples collected during the bisect
> >
> > [*] bisect-good
> > [O] bisect-bad ("bad" in the sense of bisect)
> >
> > In which you can see the stableness of the change and bisect.
> >
> > vm-scalability.stddev
> >
> > 16 ++--------------------------------------------------------------------+
> > | * |
> > 14 ++ : |
> > 12 ++ : |
> > | :: |
> > 10 ++ :: |
> > | :: |
> > 8 ++ :: |
> > | : : |
> > 6 ++ * : : |
> > 4 ++ * * :: : : |
> > | +: : + * : : : : |
> > 2 ++*. *. .* : : * .*. + : : : .* : : |
> > |+ * + * *. .* O *.*.*. .** O.**.O.* O: *.O.* O OO.* + : *.|
> > 0 O+O-OO-O-O-O-OO-O-O---OO-O-O-O-OO-O---OO-*-O---OO-*-O------O-O-*-*----*
> >
> >
> > Thanks,
> > Fengguang
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.tux.org/lkml/
>
> --
> I speak only for myself.
> Rafael J. Wysocki, Intel Open Source Technology Center.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-03-05 8:23 [ACPI / hotplug / PCI] 1b360f44d00: -80.9% vm-scalability.stddev Fengguang Wu
2014-03-05 12:58 ` Rafael J. Wysocki
2014-03-05 12:49 ` Fengguang Wu
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