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2024-07-27 - 14:17

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackfslot4s.osadl.org (updated Sat Jul 27, 2024 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1082921190,3chrt10816-21ntpq21:06:210
2140421170,3chrt21403-21/usr/sbin/munin00:20:420
2809221120,2chrt28088-21ps20:36:200
875721110,2chrt8758-21sh23:57:150
2717021110,2chrt27169-21sort22:35:050
1768521110,3chrt16170-21/usr/sbin/munin22:17:060
775121090,2chrt7752-21open_inodes19:57:110
1326221080,1sleep013295-21if_err_can000:05:570
1983421030,2chrt19835-21sh19:16:460
1464321030,2chrt14644-21ld22:11:310
52462860,2sleep05249-21irqrtprio20:55:440
7922830,1sleep0793-21ntp_states21:46:590
203872750,2sleep020388-21sh22:21:560
152982720,1sleep015301-21cut23:11:040
275122700,1sleep027513-21hostname22:35:350
124232700,2sleep012420-21uptime22:07:220
301792620,2sleep030182-21grep23:37:150
278042614,8sleep027808-21ntpq00:31:340
105582600,1sleep010560-21sort23:02:150
79212594,8sleep07631-21apt-get22:00:230
20102583,8sleep02011-21ssh22:47:130
261842525,8sleep026188-21diskstats19:30:290
237472500,3chrt23662-21apt-get21:31:020
301572492,38sleep011-21ksoftirqd/022:40:270
177502492,6sleep017742-21ssh23:15:540
120222490,3chrt12020-21/usr/sbin/munin23:05:390
295102480,2chrt29496-21ntpq19:36:060
159812480,2chrt15979-21/usr/sbin/munin21:16:130
15611904818,23cyclictest0-21swapper22:28:130
15611904818,23cyclictest0-21swapper21:35:090
248942474,35sleep024890-21ntpq00:26:160
15611904718,22cyclictest0-21swapper00:17:290
137332479,19sleep013760-21ps19:05:340
15611904617,21cyclictest0-21swapper23:43:040
1561190456,19cyclictest17928-21ssh21:20:180
1561190455,19cyclictest29677-21df00:35:380
15611904517,10cyclictest1983-21/usr/sbin/munin20:50:260
15611904516,22cyclictest0-21swapper23:23:370
15611904516,22cyclictest0-21swapper21:54:300
33432441,6sleep00-21swapper23:47:200
1561190447,19cyclictest9832-21ntpq20:00:520
15611904415,20cyclictest0-21swapper22:59:360
1561190436,9cyclictest30549-21ntpq20:41:120
1561190435,10cyclictest12654-21irqstats20:06:360
15611904319,16cyclictest0-21swapper21:58:170
189492420,2chrt18950-21sh20:19:360
1561190426,10cyclictest3798-21df22:50:580
1561190425,28cyclictest15463-21ssh00:10:180
1561190425,17cyclictest1323-21df19:45:270
1561190424,17cyclictest23691-21hddtemp_smartct23:26:330
15611904218,16cyclictest0-21swapper23:33:210
15611904216,20cyclictest11365-21sh00:02:050
15611904215,10cyclictest23459-21aten2.4_rfpower19:25:230
15611904214,10cyclictest31682-21munin-run21:45:030
15611904214,10cyclictest15748-21runrttasks20:11:500
1561190415,10cyclictest12188-21seq21:10:190
1561190414,11cyclictest893-21runrttasks20:31:090
15611904118,15cyclictest0-21swapper21:28:280
15611904115,18cyclictest4344-21apt-get23:50:190
1561190405,8cyclictest21647-21irqstats19:20:450
1561190404,9cyclictest31293-21diskstats19:40:330
1561190403,17cyclictest22840-21ntpq20:26:010
1561190394,27cyclictest7549-21hddtemp_smartct21:00:390
1561190386,11cyclictest19720-21hddtemp_smartct20:20:370
1561190385,12cyclictest3871-21diskstats19:50:280
1561190384,16cyclictest16868-21seq19:11:100
1561190376,11cyclictest32383-21hddtemp_smartct20:45:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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