* [sched] 73628fba4: +69% context switches
@ 2014-01-11 10:19 Fengguang Wu
2014-01-13 5:57 ` Alex Shi
0 siblings, 1 reply; 8+ messages in thread
From: Fengguang Wu @ 2014-01-11 10:19 UTC (permalink / raw)
To: Alex Shi; +Cc: LKML, Peter Zijlstra, lkp
Alex,
FYI, we find much increased interrupts and context switches introduced
by commit 73628fba4 ("sched: unify imbalance bias for target group")
in your noload branch:
7bea8c18805a5f1 73628fba451ae72221b155696
--------------- -------------------------
14979 ~ 4% +1304.8% 210434 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
2748 ~ 5% +977.4% 29607 ~ 0% nhm-white/micro/aim7/shared
17727 +1254.1% 240041 TOTAL interrupts.RES
7bea8c18805a5f1 73628fba451ae72221b155696
--------------- -------------------------
3617 ~ 0% +69.2% 6118 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
3617 +69.2% 6118 TOTAL vmstat.system.in
7bea8c18805a5f1 73628fba451ae72221b155696
--------------- -------------------------
132746 ~ 0% +69.0% 224346 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
220038 ~ 0% +6.0% 233218 ~ 0% nhm-white/micro/aim7/shared
352785 +29.7% 457564 TOTAL time.involuntary_context_switches
7bea8c18805a5f1 73628fba451ae72221b155696
--------------- -------------------------
1424581 ~ 0% +8.6% 1546786 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
1424581 +8.6% 1546786 TOTAL time.voluntary_context_switches
7bea8c18805a5f1 73628fba451ae72221b155696
--------------- -------------------------
20982 ~ 0% +12.5% 23599 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
6005 ~ 0% +4.2% 6256 ~ 0% nhm-white/micro/aim7/shared
26988 +10.6% 29856 TOTAL vmstat.system.cs
vmstat.system.cs
24000 ++-------------------------O---------------------------------------+
O O O O O |
23500 ++ O O O O O O O O |
| O O O O O O O |
23000 ++ O |
| |
22500 ++ |
| |
22000 ++ |
| |
21500 ++ |
| .*.. .*...*..*..*..*..*.. |
21000 *+. .*..*..*. *..*.. .*. *..*..*..*..*..*..*
| *. *. |
20500 ++-----------------------------------------------------------------+
time.voluntary_context_switches
1.56e+06 ++----------O-------------O-----------------O-------O-----------+
O O O O O O O O O |
1.54e+06 ++ O O O O O |
1.52e+06 ++ O O O O |
| |
1.5e+06 ++ |
| |
1.48e+06 ++ |
| |
1.46e+06 ++ |
1.44e+06 ++ |
| .*. .*.. .*.. |
1.42e+06 *+.*..*..*..*. *..*..*. *..*. *..*..*..*.*..*..*..*..*..*
| |
1.4e+06 ++--------------------------------------------------------------+
time.involuntary_context_switches
240000 ++----------------------------------------------------------------+
230000 ++ O O |
O O O O O O O O O O O O |
220000 ++ O O O O O |
210000 ++ O O O |
200000 ++ |
190000 ++ |
| |
180000 ++ |
170000 ++ |
160000 ++ |
150000 ++ |
| |
140000 ++ .*.. .*..*..*.. .*.. |
130000 *+-*--*--*--*-----*--*--*--*--*--*--*-----------*--*--*-----*--*--*
vmstat.system.in
6500 ++------------------------------------------------------------------+
| O |
6000 O+ O O O O O O O O O O |
| O O O O O O O O O O |
| |
5500 ++ |
| |
5000 ++ |
| |
4500 ++ |
| |
| |
4000 ++ |
| ..*.. .*..*..*..|
3500 *+-*--*--*--*--*---*--*--*--*--*--*--*--*--*--*--*------*-----------*
Thanks,
Fengguang
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [sched] 73628fba4: +69% context switches
2014-01-11 10:19 [sched] 73628fba4: +69% context switches Fengguang Wu
@ 2014-01-13 5:57 ` Alex Shi
2014-01-16 1:23 ` Fengguang Wu
0 siblings, 1 reply; 8+ messages in thread
From: Alex Shi @ 2014-01-13 5:57 UTC (permalink / raw)
To: Fengguang Wu; +Cc: LKML, Peter Zijlstra, lkp
On 01/11/2014 06:19 PM, Fengguang Wu wrote:
> Alex,
>
> FYI, we find much increased interrupts and context switches introduced
> by commit 73628fba4 ("sched: unify imbalance bias for target group")
> in your noload branch:
Many thanks for the generous and quick testing! :)
few questions for the results and give a testing patch for try. it also push on github.
What's about the aim7 shell_rtns_1 and shared throughput?
>
> 7bea8c18805a5f1 73628fba451ae72221b155696
> --------------- -------------------------
> 14979 ~ 4% +1304.8% 210434 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
> 2748 ~ 5% +977.4% 29607 ~ 0% nhm-white/micro/aim7/shared
> 17727 +1254.1% 240041 TOTAL interrupts.RES
RES interrupt increased about 200,000, but vmstat's interrupt increased a little. guess the vmstat data is per seconds, right? If so, it is better give how long time the vmstat running.
The same problem on the time.involuntary_context_switches and vmstat cs.
According to involuntary CS definition in time, RES interrupt will cause involuntary CS. but here 29607 RES of aim7/shared cause 233218 time inv CS, does sth I missed or the data is incorrect?
>
> 7bea8c18805a5f1 73628fba451ae72221b155696
> --------------- -------------------------
> 3617 ~ 0% +69.2% 6118 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
> 3617 +69.2% 6118 TOTAL vmstat.system.in
>
> 7bea8c18805a5f1 73628fba451ae72221b155696
> --------------- -------------------------
> 132746 ~ 0% +69.0% 224346 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
> 220038 ~ 0% +6.0% 233218 ~ 0% nhm-white/micro/aim7/shared
> 352785 +29.7% 457564 TOTAL time.involuntary_context_switches
>
> 7bea8c18805a5f1 73628fba451ae72221b155696
> --------------- -------------------------
> 1424581 ~ 0% +8.6% 1546786 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
> 1424581 +8.6% 1546786 TOTAL time.voluntary_context_switches
>
> 7bea8c18805a5f1 73628fba451ae72221b155696
> --------------- -------------------------
> 20982 ~ 0% +12.5% 23599 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
> 6005 ~ 0% +4.2% 6256 ~ 0% nhm-white/micro/aim7/shared
> 26988 +10.6% 29856 TOTAL vmstat.system.cs
>
> vmstat.system.cs
>
commit c5a8778a132cfa882609fbccb4ee6542eac9866d
Author: Alex Shi <alex.shi@linaro.org>
Date: Mon Jan 13 13:54:30 2014 +0800
more bias towards local cpu group
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 2b216ad..046ca2c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4008,7 +4008,6 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p, int sync)
struct task_group *tg;
unsigned long weight;
int balanced;
- int bias = 100 + (sd->imbalance_pct -100) / 2;
/*
* If we wake multiple tasks be careful to not bounce
@@ -4020,7 +4019,7 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p, int sync)
this_cpu = smp_processor_id();
prev_cpu = task_cpu(p);
load = source_load(prev_cpu);
- this_load = target_load(this_cpu, bias);
+ this_load = target_load(this_cpu, sd->imbalance_pct);
/*
* If sync wakeup then subtract the (maximum possible)
@@ -4055,7 +4054,7 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p, int sync)
this_eff_load *= this_load +
effective_load(tg, this_cpu, weight, weight);
- prev_eff_load = bias;
+ prev_eff_load = 100 + (sd->imbalance_pct - 100) / 2;
prev_eff_load *= power_of(this_cpu);
prev_eff_load *= load + effective_load(tg, prev_cpu, 0, weight);
@@ -4100,7 +4099,6 @@ find_idlest_group(struct sched_domain *sd, struct task_struct *p, int this_cpu)
{
struct sched_group *idlest = NULL, *group = sd->groups;
unsigned long min_load = ULONG_MAX, this_load = 0;
- int imbalance = 100 + (sd->imbalance_pct-100)/2;
do {
unsigned long load, avg_load;
@@ -4123,7 +4121,7 @@ find_idlest_group(struct sched_domain *sd, struct task_struct *p, int this_cpu)
if (local_group)
load = source_load(i);
else
- load = target_load(i, imbalance);
+ load = target_load(i, sd->imbalance_pct);
avg_load += load;
}
--
Thanks
Alex
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [sched] 73628fba4: +69% context switches
2014-01-13 5:57 ` Alex Shi
@ 2014-01-16 1:23 ` Fengguang Wu
2014-01-16 2:02 ` Alex Shi
0 siblings, 1 reply; 8+ messages in thread
From: Fengguang Wu @ 2014-01-16 1:23 UTC (permalink / raw)
To: Alex Shi; +Cc: LKML, Peter Zijlstra, lkp
On Mon, Jan 13, 2014 at 01:57:30PM +0800, Alex Shi wrote:
> On 01/11/2014 06:19 PM, Fengguang Wu wrote:
> > Alex,
> >
> > FYI, we find much increased interrupts and context switches introduced
> > by commit 73628fba4 ("sched: unify imbalance bias for target group")
> > in your noload branch:
>
> Many thanks for the generous and quick testing! :)
>
> few questions for the results and give a testing patch for try. it also push on github.
>
> What's about the aim7 shell_rtns_1 and shared throughput?
The throughputs remain the same. We only report changed numbers.
> > 7bea8c18805a5f1 73628fba451ae72221b155696
> > --------------- -------------------------
> > 14979 ~ 4% +1304.8% 210434 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
> > 2748 ~ 5% +977.4% 29607 ~ 0% nhm-white/micro/aim7/shared
> > 17727 +1254.1% 240041 TOTAL interrupts.RES
>
> RES interrupt increased about 200,000, but vmstat's interrupt
> increased a little. guess the vmstat data is per seconds, right? If
Yes.
> so, it is better give how long time the vmstat running.
vmstat runs throughout the aim7 test run.
> The same problem on the time.involuntary_context_switches and vmstat cs.
ditto.
> According to involuntary CS definition in time, RES interrupt will cause involuntary CS. but here 29607 RES of aim7/shared cause 233218 time inv CS, does sth I missed or the data is incorrect?
>
> >
> > 7bea8c18805a5f1 73628fba451ae72221b155696
> > --------------- -------------------------
> > 3617 ~ 0% +69.2% 6118 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
> > 3617 +69.2% 6118 TOTAL vmstat.system.in
> >
> > 7bea8c18805a5f1 73628fba451ae72221b155696
> > --------------- -------------------------
> > 132746 ~ 0% +69.0% 224346 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
> > 220038 ~ 0% +6.0% 233218 ~ 0% nhm-white/micro/aim7/shared
> > 352785 +29.7% 457564 TOTAL time.involuntary_context_switches
> >
> > 7bea8c18805a5f1 73628fba451ae72221b155696
> > --------------- -------------------------
> > 1424581 ~ 0% +8.6% 1546786 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
> > 1424581 +8.6% 1546786 TOTAL time.voluntary_context_switches
> >
> > 7bea8c18805a5f1 73628fba451ae72221b155696
> > --------------- -------------------------
> > 20982 ~ 0% +12.5% 23599 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
> > 6005 ~ 0% +4.2% 6256 ~ 0% nhm-white/micro/aim7/shared
> > 26988 +10.6% 29856 TOTAL vmstat.system.cs
> >
> > vmstat.system.cs
> >
>
> commit c5a8778a132cfa882609fbccb4ee6542eac9866d
> Author: Alex Shi <alex.shi@linaro.org>
> Date: Mon Jan 13 13:54:30 2014 +0800
>
> more bias towards local cpu group
In your rebased tree, there are still much increased interrupts and
context switches:
Comparing 91dd08bd65052b483f96f75ab ("sched: more bias towards local
cpu group") with upstream:
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
48 ~13% +485.4% 281 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
48 +485.4% 281 TOTAL numa-vmstat.node1.nr_shmem
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
10142 ~ 4% +2737.8% 287830 ~ 2% lkp-ne04/micro/aim7/shell_rtns_1
1349 ~16% +1479.3% 21319 ~ 4% nhm-white/micro/aim7/dbase
11492 +2590.0% 309149 TOTAL interrupts.RES
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
194 ~12% +472.9% 1115 ~ 2% lkp-ne04/micro/aim7/shell_rtns_1
194 +472.9% 1115 TOTAL numa-meminfo.node1.Shmem
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
118634 ~ 2% -73.0% 32081 ~ 0% nhm-white/micro/aim7/dbase
118634 -73.0% 32081 TOTAL interrupts.IWI
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
327 ~ 1% -71.0% 95 ~ 4% lkp-ne04/micro/aim7/shell_rtns_1
327 -71.0% 95 TOTAL numa-vmstat.node0.nr_shmem
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
1312 ~ 1% -70.8% 383 ~ 4% lkp-ne04/micro/aim7/shell_rtns_1
1312 -70.8% 383 TOTAL numa-meminfo.node0.Shmem
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
11786 ~ 9% +141.4% 28451 ~ 3% lkp-ne04/micro/aim7/shell_rtns_1
11786 +141.4% 28451 TOTAL sched_debug.cfs_rq[10]:/.min_vruntime
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
30715 ~ 0% -50.4% 15249 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
30715 -50.4% 15249 TOTAL numa-meminfo.node0.KernelStack
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
3823 ~ 0% -50.1% 1908 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
3823 -50.1% 1908 TOTAL numa-vmstat.node0.nr_kernel_stack
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
22270 ~ 3% +91.0% 42527 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
22270 +91.0% 42527 TOTAL sched_debug.cfs_rq[10]:/.blocked_load_avg
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
1967 ~ 0% +90.5% 3749 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
1967 +90.5% 3749 TOTAL numa-vmstat.node1.nr_kernel_stack
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
15819 ~ 1% +89.1% 29910 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
15819 +89.1% 29910 TOTAL numa-meminfo.node1.KernelStack
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
41191 ~ 4% +75.7% 72359 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
41191 +75.7% 72359 TOTAL numa-meminfo.node1.SUnreclaim
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
10264 ~ 3% +76.5% 18121 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
10264 +76.5% 18121 TOTAL numa-vmstat.node1.nr_slab_unreclaimable
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
17782 ~ 2% -40.0% 10670 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
17782 -40.0% 10670 TOTAL numa-vmstat.node0.nr_slab_unreclaimable
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
71301 ~ 1% -40.0% 42766 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
71301 -40.0% 42766 TOTAL numa-meminfo.node0.SUnreclaim
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
59103 ~ 3% +49.8% 88528 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
59103 +49.8% 88528 TOTAL numa-meminfo.node1.Slab
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
89141 ~ 1% -30.2% 62248 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
89141 -30.2% 62248 TOTAL numa-meminfo.node0.Slab
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
38773 ~ 2% +29.7% 50304 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
38773 +29.7% 50304 TOTAL sched_debug.cpu#10.nr_switches
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
35293 ~ 1% +24.8% 44029 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
35293 +24.8% 44029 TOTAL sched_debug.cpu#15.nr_switches
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
35772 ~ 1% +23.9% 44317 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
35772 +23.9% 44317 TOTAL sched_debug.cpu#14.nr_switches
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
946595 ~ 0% -14.2% 812568 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
946595 -14.2% 812568 TOTAL numa-meminfo.node0.MemUsed
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
5966 ~ 0% +11.1% 6627 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
5966 +11.1% 6627 TOTAL slabinfo.mm_struct.active_objs
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
131624 ~ 0% +99.0% 261914 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
131624 +99.0% 261914 TOTAL time.involuntary_context_switches
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
3542 ~ 0% +104.2% 7233 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
2407 ~ 0% -10.4% 2156 ~ 0% nhm-white/micro/aim7/dbase
5950 +57.8% 9389 TOTAL vmstat.system.in
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
20993 ~ 0% +17.1% 24588 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
2166 ~ 0% +7.8% 2335 ~ 0% nhm-white/micro/aim7/dbase
23159 +16.3% 26923 TOTAL vmstat.system.cs
v3.13-rc8 91dd08bd65052b483f96f75ab
--------------- -------------------------
1423954 ~ 0% +12.2% 1598169 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
1423954 +12.2% 1598169 TOTAL time.voluntary_context_switches
Comparing e69bd3470ef8ab10bcb9d6ad4 ("sched: unify imbalance bias for
target group") with its parent:
64651525f152c05 e69bd3470ef8ab10bcb9d6ad4
--------------- -------------------------
15604 ~ 3% +1268.6% 213573 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
1532 ~16% +647.7% 11455 ~ 6% nhm-white/micro/aim7/dbase
17136 +1213.1% 225029 TOTAL interrupts.RES
64651525f152c05 e69bd3470ef8ab10bcb9d6ad4
--------------- -------------------------
107861 ~ 1% -63.0% 39865 ~ 2% nhm-white/micro/aim7/dbase
107861 -63.0% 39865 TOTAL interrupts.IWI
64651525f152c05 e69bd3470ef8ab10bcb9d6ad4
--------------- -------------------------
133536 ~ 0% +69.4% 226257 ~ 1% lkp-ne04/micro/aim7/shell_rtns_1
133536 +69.4% 226257 TOTAL time.involuntary_context_switches
64651525f152c05 e69bd3470ef8ab10bcb9d6ad4
--------------- -------------------------
2359 ~ 0% -9.5% 2134 ~ 0% nhm-white/micro/aim7/dbase
2359 -9.5% 2134 TOTAL vmstat.system.in
64651525f152c05 e69bd3470ef8ab10bcb9d6ad4
--------------- -------------------------
1431362 ~ 0% +8.5% 1552345 ~ 0% lkp-ne04/micro/aim7/shell_rtns_1
1431362 +8.5% 1552345 TOTAL time.voluntary_context_switches
64651525f152c05 e69bd3470ef8ab10bcb9d6ad4
--------------- -------------------------
2162 ~ 0% +5.2% 2274 ~ 0% nhm-white/micro/aim7/dbase
2162 +5.2% 2274 TOTAL vmstat.system.cs
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [sched] 73628fba4: +69% context switches
2014-01-16 1:23 ` Fengguang Wu
@ 2014-01-16 2:02 ` Alex Shi
2014-01-16 2:18 ` Fengguang Wu
0 siblings, 1 reply; 8+ messages in thread
From: Alex Shi @ 2014-01-16 2:02 UTC (permalink / raw)
To: Fengguang Wu; +Cc: LKML, Peter Zijlstra, lkp
On 01/16/2014 09:23 AM, Fengguang Wu wrote:
> On Mon, Jan 13, 2014 at 01:57:30PM +0800, Alex Shi wrote:
>> On 01/11/2014 06:19 PM, Fengguang Wu wrote:
>>> Alex,
>>>
>>> FYI, we find much increased interrupts and context switches introduced
>>> by commit 73628fba4 ("sched: unify imbalance bias for target group")
>>> in your noload branch:
>>
>> Many thanks for the generous and quick testing! :)
>>
>> few questions for the results and give a testing patch for try. it also push on github.
>>
>> What's about the aim7 shell_rtns_1 and shared throughput?
>
> The throughputs remain the same. We only report changed numbers.
So many interrupt increase doesn't cause any performance change, that
make more doubt of data correction.
Could you like to give the typical vmstat output? Specially the
sys/us/wa/id time percentages.
BTW
Just confirm, the benchmark is running on a native machine, not a kvm
guest, right?
>>
>> commit c5a8778a132cfa882609fbccb4ee6542eac9866d
>> Author: Alex Shi <alex.shi@linaro.org>
>> Date: Mon Jan 13 13:54:30 2014 +0800
>>
>> more bias towards local cpu group
>
>
> In your rebased tree, there are still much increased interrupts and
> context switches:
>
Thanks for your great testing!
Seems I tune it to the wrong direction. :)
Will change to another directory to reduce the questionable interrupt/CS
increase.
--
Thanks
Alex
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [sched] 73628fba4: +69% context switches
2014-01-16 2:02 ` Alex Shi
@ 2014-01-16 2:18 ` Fengguang Wu
2014-01-16 2:46 ` Alex Shi
0 siblings, 1 reply; 8+ messages in thread
From: Fengguang Wu @ 2014-01-16 2:18 UTC (permalink / raw)
To: Alex Shi; +Cc: LKML, Peter Zijlstra, lkp
On Thu, Jan 16, 2014 at 10:02:06AM +0800, Alex Shi wrote:
> On 01/16/2014 09:23 AM, Fengguang Wu wrote:
> > On Mon, Jan 13, 2014 at 01:57:30PM +0800, Alex Shi wrote:
> >> On 01/11/2014 06:19 PM, Fengguang Wu wrote:
> >>> Alex,
> >>>
> >>> FYI, we find much increased interrupts and context switches introduced
> >>> by commit 73628fba4 ("sched: unify imbalance bias for target group")
> >>> in your noload branch:
> >>
> >> Many thanks for the generous and quick testing! :)
> >>
> >> few questions for the results and give a testing patch for try. it also push on github.
> >>
> >> What's about the aim7 shell_rtns_1 and shared throughput?
> >
> > The throughputs remain the same. We only report changed numbers.
>
> So many interrupt increase doesn't cause any performance change, that
> make more doubt of data correction.
> Could you like to give the typical vmstat output? Specially the
> sys/us/wa/id time percentages.
wfg@bee /lkp/result/lkp-ne04/micro/aim7/shell_rtns_1/x86_64-lkp/91dd08bd65052b483f96f75abcc93f2f1b67a62c/1% cat vmstat
1389799131.230965 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
1389799131.231067 r b swpd free buff cache si so bi bo in cs us sy id wa
1389799131.231088 1 0 0 11192512 0 850368 0 0 10 0 74 109 0 2 97 0
1389799132.202831 2 0 0 11088468 0 851636 0 0 0 0 651 4293 1 2 98 0
1389799133.203196 1 0 0 10954680 0 851672 0 0 0 0 277 2796 0 1 99 0
1389799134.203607 0 0 0 10954116 0 851692 0 0 0 0 193 493 0 0 100 0
1389799135.204022 0 0 0 10954964 0 851692 0 0 0 0 203 541 0 0 100 0
1389799136.204447 0 0 0 10955656 0 851756 0 0 0 0 210 513 0 0 100 0
1389799137.204838 0 0 0 10955564 0 851776 0 0 0 0 219 552 0 0 100 0
1389799138.205241 0 0 0 10956100 0 851776 0 0 0 0 204 529 0 0 100 0
1389799139.205667 0 0 0 10956400 0 851776 0 0 0 0 197 547 0 0 100 0
1389799140.206104 1 0 0 10956684 0 851844 0 0 0 0 222 539 0 0 100 0
1389799141.206506 0 0 0 10956412 0 851844 0 0 0 0 205 521 0 0 100 0
1389799142.206932 0 0 0 10956676 0 851892 0 0 0 0 213 532 0 0 100 0
1389799143.207206 1912 26 0 10354424 0 851960 0 0 0 0 8849 31376 28 67 6 0
1389799144.207531 1515 35 0 10318484 0 852092 0 0 0 0 7670 28332 31 69 0 0
1389799145.207852 1678 26 0 10303276 0 852196 0 0 0 0 7596 27208 31 69 0 0
1389799146.208176 1981 43 0 10264672 0 852284 0 0 0 0 7478 27313 31 69 0 0
1389799147.208500 1977 35 0 10299316 0 852380 0 0 0 0 8505 29552 30 70 0 0
1389799148.208820 1800 48 0 10300820 0 852500 0 0 0 0 8506 29456 31 69 0 0
1389799149.209144 1983 40 0 10310796 0 852600 0 0 0 0 8023 28719 29 71 0 0
1389799150.209466 1816 28 0 10267816 0 852676 0 0 0 0 7027 26286 32 68 0 0
1389799151.209784 1329 31 0 10193448 0 852780 0 0 0 0 8564 29613 30 70 0 0
1389799152.210105 1722 28 0 10193404 0 852896 0 0 0 0 8993 29358 30 70 0 0
1389799153.210427 1762 26 0 10338320 0 852976 0 0 0 0 9391 32241 30 71 0 0
1389799154.210751 1509 36 0 10203556 0 853100 0 0 0 0 10013 32206 30 70 0 0
1389799155.211073 1205 25 0 10229852 0 853212 0 0 0 0 9744 32089 30 70 0 0
1389799156.211398 1982 32 0 10329704 0 853288 0 0 0 0 8437 29161 29 71 0 0
1389799157.211718 1756 31 0 10250128 0 853384 0 0 0 0 7476 27144 30 70 0 0
1389799158.212032 1970 27 0 10358368 0 853496 0 0 0 0 7506 27875 30 70 0 0
1389799159.212365 1992 13 0 10306128 0 853604 0 0 0 0 8105 28380 31 69 0 0
1389799160.212681 1986 36 0 10243380 0 853692 0 0 0 0 8404 29428 30 70 0 0
1389799161.213004 1724 32 0 10265420 0 853760 0 0 0 0 7844 28716 29 71 0 0
1389799162.213337 1973 24 0 10364640 0 853876 0 0 0 0 7558 27253 31 69 0 0
1389799163.213660 1936 38 0 10236308 0 854008 0 0 0 0 7879 28209 31 69 0 0
1389799164.213988 1810 30 0 10265044 0 854076 0 0 0 0 9246 30739 31 69 0 0
1389799165.214307 1965 29 0 10344108 0 854184 0 0 0 0 9135 31255 30 70 0 0
1389799166.214628 1978 33 0 10344384 0 854300 0 0 0 0 8292 29067 29 71 0 0
1389799167.214938 1969 30 0 10289112 0 854400 0 0 0 0 6936 26226 29 71 0 0
1389799168.215253 958 12 0 10140312 0 854472 0 0 0 0 8210 29214 29 71 0 0
1389799169.215572 1408 35 0 10137160 0 854596 0 0 0 0 9562 31072 30 70 0 0
1389799170.215888 1218 13 0 10312800 0 854708 0 0 0 0 9135 31609 30 70 0 0
1389799171.217063 1232 20 0 10258360 0 854792 0 0 0 0 9021 30519 31 69 0 0
1389799172.217385 1988 25 0 10335908 0 854876 0 0 0 0 7756 27369 30 70 0 0
1389799173.217705 1688 16 0 10369428 0 855004 0 0 0 0 8611 30032 30 70 0 0
1389799174.218089 1981 27 0 10246728 0 855112 0 0 0 0 7634 26809 31 69 0 0
1389799175.218408 1829 45 0 10230396 0 855192 0 0 0 0 8219 29337 30 70 0 0
1389799176.218738 876 12 0 10146360 0 855268 0 0 0 0 8059 29358 31 69 0 0
1389799177.219060 1973 44 0 10284400 0 855412 0 0 0 0 9803 31449 29 71 0 0
1389799178.219380 1794 31 0 10173544 0 855492 0 0 0 0 15388 27535 31 69 0 0
1389799179.219704 1566 11 0 10245204 0 855584 0 0 0 0 10387 33849 30 70 0 0
1389799180.220096 1832 25 0 10329192 0 855692 0 0 0 0 8143 28547 31 69 0 0
1389799181.220418 1640 33 0 10088520 0 855804 0 0 0 0 7216 26359 31 69 0 0
1389799182.220738 1819 23 0 10222344 0 855884 0 0 0 0 8654 29991 31 69 0 0
1389799183.221059 1659 20 0 10271384 0 855976 0 0 0 0 8671 30317 30 70 0 0
1389799184.221379 1320 41 0 10110368 0 856108 0 0 0 0 7696 27189 28 72 0 0
1389799185.221692 1972 22 0 10356188 0 856200 0 0 0 0 8966 30778 30 70 0 0
1389799186.222098 1795 13 0 10237712 0 856284 0 0 0 0 8074 28370 31 69 0 0
1389799187.222344 1990 20 0 10407224 0 856372 0 0 0 0 8044 29019 31 69 0 0
1389799188.222960 1321 6 0 10124124 0 856504 0 0 0 0 7736 27526 30 70 0 0
1389799189.222988 1804 33 0 10300448 0 856604 0 0 0 0 8580 29567 30 70 0 0
1389799190.223321 1856 13 0 10313708 0 856676 0 0 0 0 8082 28645 31 69 0 0
1389799191.223652 1379 14 0 10114468 0 856800 0 0 0 0 8046 27986 30 70 0 0
1389799192.224033 1261 6 0 10161416 0 856908 0 0 0 0 9784 32060 30 70 0 0
1389799193.224349 1976 34 0 10328644 0 856988 0 0 0 0 8229 29247 32 68 0 0
1389799194.224668 1621 18 0 10257544 0 857088 0 0 0 0 7172 26597 31 69 0 0
1389799195.225020 1245 11 0 10208652 0 857208 0 0 0 0 7717 27843 31 69 0 0
1389799196.225342 1982 36 0 10255616 0 857304 0 0 0 0 9333 30885 31 69 0 0
1389799197.225669 1707 19 0 10245296 0 857384 0 0 0 0 7589 27529 31 69 0 0
1389799198.225999 1644 26 0 10182096 0 857468 0 0 0 0 8169 28721 31 69 0 0
1389799199.228106 1727 49 0 10031600 0 857604 0 0 0 0 7981 28096 30 70 0 0
1389799200.226631 1316 17 0 10179548 0 857696 0 0 0 0 9669 32554 31 69 0 0
1389799201.226977 1953 28 0 10296580 0 857780 0 0 0 0 9051 30902 32 68 0 0
1389799202.227297 1756 16 0 10376204 0 857876 0 0 0 0 8484 29803 30 70 0 0
1389799203.227616 1810 18 0 10308232 0 858004 0 0 0 0 7987 28169 31 69 0 0
1389799204.227940 1974 33 0 10271384 0 858096 0 0 0 0 8051 28489 31 69 0 0
1389799205.228265 1456 15 0 10377436 0 858176 0 0 0 0 8119 29356 30 70 0 0
1389799206.228586 1486 27 0 10507456 0 858300 0 0 0 0 7263 26390 31 69 0 0
1389799207.228910 636 10 0 10845116 0 858424 0 0 0 0 7603 27877 30 70 0 0
1389799208.229279 0 1 0 11144480 0 857444 0 0 0 0 12084 10976 11 24 61 4
1389799209.229695 0 0 0 11156876 0 857480 0 0 0 0 12877 879 0 0 88 12
wfg@bee /lkp/result/lkp-ne04/micro/aim7/shell_rtns_1/x86_64-lkp/v3.13-rc8/1% cat vmstat
1389532389.340878 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
1389532389.340981 r b swpd free buff cache si so bi bo in cs us sy id wa
1389532389.341018 1 0 0 11194112 0 850032 0 0 11 0 73 114 0 2 97 0
1389532390.311886 2 0 0 11086632 0 851316 0 0 0 0 602 4353 1 1 98 0
1389532391.312269 1 0 0 10957220 0 851640 0 0 0 0 250 2794 0 1 99 0
1389532392.312662 0 0 0 10956344 0 851648 0 0 0 0 201 488 0 0 100 0
1389532393.313071 0 0 0 10956192 0 851664 0 0 0 0 191 492 0 0 100 0
1389532394.313530 0 0 0 10955948 0 851728 0 0 0 0 200 535 0 0 100 0
1389532395.313928 0 0 0 10956636 0 851764 0 0 0 0 213 514 0 0 100 0
1389532396.314378 0 0 0 10957468 0 851784 0 0 0 0 202 523 0 0 100 0
1389532397.314827 0 0 0 10957268 0 851816 0 0 0 0 178 506 0 0 100 0
1389532398.315244 0 0 0 10957696 0 851816 0 0 0 0 225 538 0 0 100 0
1389532399.315693 0 0 0 10957864 0 851884 0 0 0 0 216 521 0 0 100 0
1389532400.316139 0 0 0 10957416 0 851884 0 0 0 0 218 520 0 0 100 0
1389532401.316410 1704 43 0 10258032 0 851904 0 0 0 0 4279 28293 27 67 6 0
1389532402.318320 1793 14 0 10430624 0 851980 0 0 0 0 4222 25462 30 70 0 0
1389532403.318634 1968 36 0 10305472 0 852116 0 0 0 0 4187 24538 30 70 0 0
1389532404.318940 1929 49 0 10354720 0 852220 0 0 0 0 4150 24892 29 71 0 0
1389532405.319257 1991 32 0 10321016 0 852288 0 0 0 0 4127 24437 30 70 0 0
1389532406.319576 1971 22 0 10329164 0 852412 0 0 0 0 4153 24855 29 71 0 0
1389532407.319885 1973 27 0 10349624 0 852504 0 0 0 0 4138 24729 31 69 0 0
1389532408.320208 1738 25 0 10196808 0 852604 0 0 0 0 4159 23941 30 70 0 0
1389532409.320586 1410 34 0 10313744 0 852676 0 0 0 0 4238 27216 31 69 0 0
1389532410.320896 1972 26 0 10373828 0 852808 0 0 0 0 4205 24042 31 69 0 0
1389532411.321213 1962 45 0 10281808 0 852908 0 0 0 0 4144 24928 30 70 0 0
1389532412.321551 1980 23 0 10385052 0 852980 0 0 0 0 4152 24672 31 69 0 0
1389532413.321872 1986 36 0 10271228 0 853068 0 0 0 0 4161 24411 31 69 0 0
1389532414.322188 1954 30 0 10379288 0 853196 0 0 0 0 4142 25049 29 71 0 0
1389532415.322493 1994 30 0 10297044 0 853284 0 0 0 0 4131 24370 31 69 0 0
1389532416.322804 1979 30 0 10351020 0 853392 0 0 0 0 4143 25007 29 71 0 0
1389532417.323118 1962 34 0 10325140 0 853476 0 0 0 0 4121 24227 31 69 0 0
1389532418.323419 1771 29 0 10242912 0 853568 0 0 0 0 4169 24515 32 69 0 0
1389532419.323736 1953 26 0 10363880 0 853696 0 0 0 0 4154 25473 29 71 0 0
1389532420.324054 1981 24 0 10300608 0 853772 0 0 0 0 4156 24419 30 70 0 0
1389532421.324365 1984 30 0 10329044 0 853872 0 0 0 0 4214 24887 30 70 0 0
1389532422.324680 1977 24 0 10339236 0 853968 0 0 0 0 4158 24516 31 69 0 0
1389532423.324999 1214 25 0 10195964 0 854104 0 0 0 0 4149 25003 30 70 0 0
1389532424.325315 1918 34 0 10385636 0 854164 0 0 0 0 4267 25195 31 69 0 0
1389532425.325632 1965 32 0 10287896 0 854248 0 0 0 0 4144 24609 30 70 0 0
1389532426.325987 1769 30 0 10334972 0 854356 0 0 0 0 4203 25440 31 69 0 0
1389532427.326300 1168 25 0 10273776 0 854480 0 0 0 0 4395 27553 30 70 0 0
1389532428.326615 1781 24 0 10333020 0 854556 0 0 0 0 4266 25006 31 69 0 0
1389532429.326934 1991 31 0 10320876 0 854652 0 0 0 0 4161 24652 29 71 0 0
1389532430.327248 1944 37 0 10295652 0 854760 0 0 0 0 4192 25078 29 71 0 0
1389532431.327558 1945 30 0 10376188 0 854868 0 0 0 0 4133 25084 31 70 0 0
1389532432.327874 1980 29 0 10314412 0 854952 0 0 0 0 4141 24534 30 70 0 0
1389532433.328178 1963 30 0 10352224 0 855044 0 0 0 0 4135 24935 31 69 0 0
1389532434.328500 1990 31 0 10331884 0 855160 0 0 0 0 4158 24668 30 70 0 0
1389532435.328815 1949 33 0 10348560 0 855260 0 0 0 0 4149 24665 30 70 0 0
1389532436.329125 1950 28 0 10332712 0 855344 0 0 0 0 4159 24642 31 69 0 0
1389532437.329437 1975 36 0 10349380 0 855424 0 0 0 0 4143 24827 30 70 0 0
1389532438.329758 1972 26 0 10314112 0 855544 0 0 0 0 4129 24529 30 70 0 0
1389532439.330075 1940 28 0 10353476 0 855664 0 0 0 0 4159 24677 30 70 0 0
1389532440.330379 1848 38 0 10313616 0 855752 0 0 0 0 4152 24955 31 69 0 0
1389532441.330678 1974 22 0 10347556 0 855816 0 0 0 0 4151 24473 29 71 0 0
1389532442.330991 1952 35 0 10314856 0 855932 0 0 0 0 4151 24735 30 70 0 0
1389532443.331298 1985 30 0 10337040 0 856060 0 0 0 0 4159 24705 29 71 0 0
1389532444.331615 1959 27 0 10315816 0 856140 0 0 0 0 4119 24603 31 69 0 0
1389532445.331917 1992 29 0 10341064 0 856220 0 0 0 0 4133 24982 30 70 0 0
1389532446.332235 1973 33 0 10314320 0 856356 0 0 0 0 4129 24519 30 70 0 0
1389532447.332548 1976 37 0 10342764 0 856428 0 0 0 0 4128 24765 30 70 0 0
1389532448.332859 1615 28 0 10229224 0 856524 0 0 0 0 4168 25250 30 70 0 0
1389532449.333163 1970 31 0 10293672 0 856644 0 0 0 0 4211 25534 30 70 0 0
1389532450.333472 1995 23 0 10368256 0 856764 0 0 0 0 4139 24344 31 69 0 0
1389532451.333796 1971 36 0 10277132 0 856824 0 0 0 0 4136 24742 30 70 0 0
1389532452.334111 1965 33 0 10371140 0 856932 0 0 0 0 4173 24934 30 70 0 0
1389532453.334424 1991 35 0 10284608 0 857036 0 0 0 0 4163 24709 30 70 0 0
1389532454.334733 1961 31 0 10365300 0 857156 0 0 0 0 4143 25047 30 70 0 0
1389532455.335048 1969 33 0 10316584 0 857236 0 0 0 0 4146 24730 31 69 0 0
1389532456.335362 1945 25 0 10334376 0 857360 0 0 0 0 4211 25016 31 69 0 0
1389532457.335681 1975 29 0 10327192 0 857472 0 0 0 0 4167 24583 30 70 0 0
1389532458.336000 1953 22 0 10327528 0 857548 0 0 0 0 4139 24951 30 70 0 0
1389532459.336310 1959 34 0 10329628 0 857616 0 0 0 0 4118 24270 31 69 0 0
1389532460.336620 1943 32 0 10332304 0 857756 0 0 0 0 4148 24753 30 70 0 0
1389532461.336936 1967 41 0 10331040 0 857848 0 0 0 0 4148 24814 31 69 0 0
1389532462.337255 1935 37 0 10287564 0 857932 0 0 0 0 4194 24927 32 68 0 0
1389532463.337585 1932 20 0 10376600 0 858004 0 0 0 0 4131 24999 30 70 0 0
1389532464.338305 1602 31 0 10461852 0 858156 0 0 0 0 4144 24206 30 70 0 0
1389532465.338265 682 14 0 10835680 0 858252 0 0 0 0 4201 24627 30 70 0 0
1389532466.338738 0 0 0 11160304 0 857256 0 0 0 0 2404 11651 12 25 62 0
> BTW
> Just confirm, the benchmark is running on a native machine, not a kvm
> guest, right?
Yes. It's lkp-ne04.
Thanks,
Fengguang
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [sched] 73628fba4: +69% context switches
2014-01-16 2:18 ` Fengguang Wu
@ 2014-01-16 2:46 ` Alex Shi
2014-01-16 3:01 ` Fengguang Wu
0 siblings, 1 reply; 8+ messages in thread
From: Alex Shi @ 2014-01-16 2:46 UTC (permalink / raw)
To: Fengguang Wu; +Cc: LKML, Peter Zijlstra, lkp
>>>> > >>
>>>> > >> What's about the aim7 shell_rtns_1 and shared throughput?
>>> > >
>>> > > The throughputs remain the same. We only report changed numbers.
>> >
>> > So many interrupt increase doesn't cause any performance change, that
>> > make more doubt of data correction.
>> > Could you like to give the typical vmstat output? Specially the
>> > sys/us/wa/id time percentages.
> wfg@bee /lkp/result/lkp-ne04/micro/aim7/shell_rtns_1/x86_64-lkp/91dd08bd65052b483f96f75abcc93f2f1b67a62c/1% cat vmstat
> 1389799131.230965 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
> 1389799131.231067 r b swpd free buff cache si so bi bo in cs us sy id wa
> 1389799143.207206 1912 26 0 10354424 0 851960 0 0 0 0 8849 31376 28 67 6 0
> 1389799144.207531 1515 35 0 10318484 0 852092 0 0 0 0 7670 28332 31 69 0 0
> 1389799145.207852 1678 26 0 10303276 0 852196 0 0 0 0 7596 27208 31 69 0 0
> 1389799146.208176 1981 43 0 10264672 0 852284 0 0 0 0 7478 27313 31 69 0 0
> 1389799147.208500 1977 35 0 10299316 0 852380 0 0 0 0 8505 29552 30 70 0 0
That's for the data! Is it the per seconds or per 10 seconds?
--
Thanks
Alex
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [sched] 73628fba4: +69% context switches
2014-01-16 2:46 ` Alex Shi
@ 2014-01-16 3:01 ` Fengguang Wu
2014-01-16 3:07 ` Alex Shi
0 siblings, 1 reply; 8+ messages in thread
From: Fengguang Wu @ 2014-01-16 3:01 UTC (permalink / raw)
To: Alex Shi; +Cc: LKML, Peter Zijlstra, lkp
On Thu, Jan 16, 2014 at 10:46:01AM +0800, Alex Shi wrote:
> >>>> > >>
> >>>> > >> What's about the aim7 shell_rtns_1 and shared throughput?
> >>> > >
> >>> > > The throughputs remain the same. We only report changed numbers.
> >> >
> >> > So many interrupt increase doesn't cause any performance change, that
> >> > make more doubt of data correction.
> >> > Could you like to give the typical vmstat output? Specially the
> >> > sys/us/wa/id time percentages.
>
> > wfg@bee /lkp/result/lkp-ne04/micro/aim7/shell_rtns_1/x86_64-lkp/91dd08bd65052b483f96f75abcc93f2f1b67a62c/1% cat vmstat
> > 1389799131.230965 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
> > 1389799131.231067 r b swpd free buff cache si so bi bo in cs us sy id wa
> > 1389799143.207206 1912 26 0 10354424 0 851960 0 0 0 0 8849 31376 28 67 6 0
> > 1389799144.207531 1515 35 0 10318484 0 852092 0 0 0 0 7670 28332 31 69 0 0
> > 1389799145.207852 1678 26 0 10303276 0 852196 0 0 0 0 7596 27208 31 69 0 0
> > 1389799146.208176 1981 43 0 10264672 0 852284 0 0 0 0 7478 27313 31 69 0 0
> > 1389799147.208500 1977 35 0 10299316 0 852380 0 0 0 0 8505 29552 30 70 0 0
>
> That's for the data!
It does not matter in comparison POV. How do you know when aim starts
the testing phase?
> Is it the per seconds or per 10 seconds?
It's per seconds. The first column has the time stamps.
Thanks,
Fengguang
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [sched] 73628fba4: +69% context switches
2014-01-16 3:01 ` Fengguang Wu
@ 2014-01-16 3:07 ` Alex Shi
0 siblings, 0 replies; 8+ messages in thread
From: Alex Shi @ 2014-01-16 3:07 UTC (permalink / raw)
To: Fengguang Wu; +Cc: LKML, Peter Zijlstra, lkp
On 01/16/2014 11:01 AM, Fengguang Wu wrote:
> On Thu, Jan 16, 2014 at 10:46:01AM +0800, Alex Shi wrote:
>>>>>>>>>
>>>>>>>>> What's about the aim7 shell_rtns_1 and shared throughput?
>>>>>>>
>>>>>>> The throughputs remain the same. We only report changed numbers.
>>>>>
>>>>> So many interrupt increase doesn't cause any performance change, that
>>>>> make more doubt of data correction.
>>>>> Could you like to give the typical vmstat output? Specially the
>>>>> sys/us/wa/id time percentages.
>>
>>> wfg@bee /lkp/result/lkp-ne04/micro/aim7/shell_rtns_1/x86_64-lkp/91dd08bd65052b483f96f75abcc93f2f1b67a62c/1% cat vmstat
>>> 1389799131.230965 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
>>> 1389799131.231067 r b swpd free buff cache si so bi bo in cs us sy id wa
>>> 1389799143.207206 1912 26 0 10354424 0 851960 0 0 0 0 8849 31376 28 67 6 0
>>> 1389799144.207531 1515 35 0 10318484 0 852092 0 0 0 0 7670 28332 31 69 0 0
>>> 1389799145.207852 1678 26 0 10303276 0 852196 0 0 0 0 7596 27208 31 69 0 0
>>> 1389799146.208176 1981 43 0 10264672 0 852284 0 0 0 0 7478 27313 31 69 0 0
>>> 1389799147.208500 1977 35 0 10299316 0 852380 0 0 0 0 8505 29552 30 70 0 0
>>
>> That's for the data!
Sorry for typo. I wanted to say 'Thanks for the data' not 'That'. :)
This data is good enough.
>
> It does not matter in comparison POV. How do you know when aim starts
> the testing phase?
>
>> Is it the per seconds or per 10 seconds?
>
> It's per seconds. The first column has the time stamps.
Thanks!
>
> Thanks,
> Fengguang
>
--
Thanks
Alex
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2014-01-16 3:07 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
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2014-01-11 10:19 [sched] 73628fba4: +69% context switches Fengguang Wu
2014-01-13 5:57 ` Alex Shi
2014-01-16 1:23 ` Fengguang Wu
2014-01-16 2:02 ` Alex Shi
2014-01-16 2:18 ` Fengguang Wu
2014-01-16 2:46 ` Alex Shi
2014-01-16 3:01 ` Fengguang Wu
2014-01-16 3:07 ` Alex Shi
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