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2026-05-22 - 20:24

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #3

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 here to display the system's profile data or here to proceed to next system.
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack7slot3s.osadl.org (updated Fri May 22, 2026 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1166621630,4sleep011668-21rt-features00:05:270
1166621630,4sleep011668-21rt-features00:05:270
1535921140,2sleep00-21swapper/019:15:180
1535921140,2sleep00-21swapper/019:15:180
245392790,2sleep00-21swapper/000:20:370
13161997524,22cyclictest0-21swapper/022:15:150
13161997524,22cyclictest0-21swapper/022:15:150
168512740,2sleep10-21swapper/122:55:151
13162997412,4cyclictest0-21swapper/121:40:011
54502730,4sleep31316499cyclictest21:25:233
211202710,3sleep21316399cyclictest21:44:272
1316199713,50cyclictest0-21swapper/023:40:140
1316499708,50cyclictest8050irq/56-dwc_otg_23:30:163
1316499701,54cyclictest26000-21/usr/sbin/munin19:45:153
1316499701,51cyclictest22059-21taskset21:02:593
1316499701,51cyclictest22059-21taskset21:02:593
1316499694,46cyclictest25387-21apt-get23:05:083
1316499692,43cyclictest0-21swapper/320:45:173
13161996915,27cyclictest8050irq/56-dwc_otg_00:25:160
1316499681,48cyclictest427-21/usr/sbin/munin21:20:123
1316499681,45cyclictest7950irq/56-dwc_otg_00:20:163
1316499671,56cyclictest20588-21unixbench_singl22:20:303
1316299678,44cyclictest8050irq/56-dwc_otg_23:24:421
1316499664,50cyclictest9730-21awk23:25:013
1316199664,44cyclictest0-21swapper/023:35:120
1316499653,49cyclictest28912-21ssh23:47:153
1316499651,46cyclictest8050irq/56-dwc_otg_20:25:013
1316199654,35cyclictest10971-21grep20:30:290
1316499643,49cyclictest5250-21chrt22:03:243
1316499643,46cyclictest11114-21ssh21:31:533
1316499641,52cyclictest6875-21ssh00:40:003
1316499641,52cyclictest6875-21ssh00:40:003
1316499641,51cyclictest907-21df20:05:153
1316499641,43cyclictest0-21swapper/319:27:503
1316299647,10cyclictest8050irq/56-dwc_otg_00:20:171
103732640,2sleep310375-21wc20:30:203
1316499634,47cyclictest9607-21taskset00:03:343
1316499633,49cyclictest9832-21ssh22:45:523
1316299638,6cyclictest0-21swapper/122:40:111
1316299638,43cyclictest8050irq/56-dwc_otg_23:35:021
13161996317,26cyclictest0-21swapper/020:10:110
1316499621,52cyclictest4069-21ssh22:40:143
1316499611,49cyclictest23679-21ssh23:02:423
1316499611,48cyclictest8295-21fschecks_count20:25:193
1316299614,5cyclictest7850irq/56-dwc_otg23:05:021
13162996111,4cyclictest0-21swapper/123:38:171
1316199615,25cyclictest0-21swapper/000:30:130
13161996137,10cyclictest7850irq/56-dwc_otg23:30:220
1316199611,6cyclictest21074-21/usr/sbin/munin23:00:150
1316199611,45cyclictest21778-21grep21:00:300
1316199611,45cyclictest21778-21grep21:00:300
1316499602,49cyclictest0-21swapper/323:26:043
1316499602,46cyclictest0-21swapper/300:16:243
1316499601,48cyclictest3551-21ssh22:39:473
1316499601,45cyclictest18748-21sort00:15:013
1316499601,41cyclictest2487-21diskmemload23:55:133
1316299605,7cyclictest141-21systemd-journal23:50:011
1316299605,4cyclictest8050irq/56-dwc_otg_23:55:151
1316299602,6cyclictest21639-21latency_hist21:45:021
1316299602,5cyclictest24042-21diskmemload22:45:221
13161996030,6cyclictest7950irq/56-dwc_otg_22:25:250
13161996023,7cyclictest8050irq/56-dwc_otg_23:50:160
13161996010,8cyclictest0-21swapper/019:20:130
1316499592,46cyclictest18490-21awk19:25:013
1316499591,50cyclictest15830-21ssh21:37:383
1316499591,45cyclictest23682-21ssh21:46:173
1316499591,45cyclictest23682-21ssh21:46:173
13164995914,36cyclictest18895-21sh22:56:483
1316299599,38cyclictest7850irq/56-dwc_otg21:55:161
1316299594,12cyclictest0-21swapper/122:09:071
1316299591,5cyclictest0-21swapper/122:15:271
1316299591,5cyclictest0-21swapper/122:15:271
1316199591,49cyclictest0-21swapper/023:45:120
127882590,13sleep20-21swapper/219:08:402
71732580,6sleep11316299cyclictest21:27:271
33422580,2sleep20-21swapper/200:35:172
33422580,2sleep20-21swapper/200:35:172
1316499582,42cyclictest217612chrt19:31:033
1316299584,4cyclictest0-21swapper/100:30:541
1316299583,5cyclictest14583-21ssh22:14:481
1316299583,4cyclictest20164-21ssh22:20:261
1316299581,3cyclictest0-21swapper/119:45:191
1316199582,40cyclictest0-21swapper/021:50:160
1316499571,47cyclictest20271-21ssh21:42:593
1316499571,46cyclictest16071-21sh22:54:193
1316499571,45cyclictest31088-21rm21:17:253
1316499571,44cyclictest26885-21ssh22:28:573
1316499571,44cyclictest14346-21ssh22:14:233
1316499571,39cyclictest26875-21rm21:12:323
1316499571,39cyclictest10856-21wget00:05:153
1316499571,39cyclictest10856-21wget00:05:153
1316299575,10cyclictest8050irq/56-dwc_otg_21:17:071
1316299573,6cyclictest18786-21wc00:15:021
1316299571,6cyclictest18584-21wc19:25:011
13161995729,7cyclictest7950irq/56-dwc_otg_23:25:240
1316199572,38cyclictest0-21swapper/000:35:310
1316199572,38cyclictest0-21swapper/000:35:310
1316199571,5cyclictest13-21rcuc/022:05:280
13161995711,9cyclictest0-21swapper/020:50:120
25922560,3sleep32594-21sh20:10:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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