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2026-06-27 - 13:41

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 Sat Jun 27, 2026 00:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5724991043,14cyclictest0-21swapper/222:00:162
5723991033,14cyclictest0-21swapper/123:35:301
572299966,84cyclictest101ktimersoftd/022:00:160
572399933,17cyclictest26842-21ssh22:00:171
194062850,2sleep10-21swapper/123:09:451
286952800,2sleep30-21swapper/322:01:313
572299792,7cyclictest0-21swapper/023:35:290
40282780,5sleep0572299cyclictest20:35:090
166542770,4sleep0572299cyclictest23:05:330
5722997652,8cyclictest7950irq/56-dwc_otg_23:25:250
5722997652,8cyclictest7950irq/56-dwc_otg_23:25:250
207662740,1sleep00-21swapper/023:10:320
572299736,37cyclictest0-21swapper/021:35:230
160922720,2sleep20-21swapper/221:46:202
572599713,42cyclictest3903-21kworker/3:223:35:293
572499716,41cyclictest7950irq/56-dwc_otg_23:25:252
572499716,41cyclictest7950irq/56-dwc_otg_23:25:252
226182700,1sleep30-21swapper/321:15:413
5722996945,5cyclictest7950irq/56-dwc_otg_22:30:190
5722996945,5cyclictest7950irq/56-dwc_otg_22:30:190
572299667,23cyclictest31681-21ssh22:45:150
572399653,33cyclictest7850irq/56-dwc_otg23:25:251
572399653,33cyclictest7850irq/56-dwc_otg23:25:251
5722996414,29cyclictest24596-21latency_hist23:55:080
572499632,40cyclictest9048-21ntpq23:35:322
5722996315,21cyclictest0-21swapper/022:05:190
572299631,45cyclictest0-21swapper/021:40:260
205142630,2sleep20-21swapper/200:28:532
5722996242,3cyclictest0-21swapper/021:45:200
5722996218,25cyclictest9-21ksoftirqd/022:55:300
299952620,4sleep229-21rcuc/222:42:442
572299594,34cyclictest0-21swapper/021:50:180
572299591,55cyclictest8954-21latency_hist00:15:090
572399582,28cyclictest0-21swapper/121:35:231
572299589,2cyclictest0-21swapper/020:55:360
5722995633,4cyclictest8050irq/56-dwc_otg_21:20:210
5722995612,8cyclictest0-21swapper/020:40:200
317822550,2sleep10-21swapper/122:05:311
572299546,27cyclictest0-21swapper/020:10:090
572299543,12cyclictest0-21swapper/022:25:210
572299533,43cyclictest13-21rcuc/019:25:210
5722995328,6cyclictest7950irq/56-dwc_otg_00:16:180
5722995327,9cyclictest7950irq/56-dwc_otg_22:35:310
572299532,26cyclictest0-21swapper/019:40:210
5722995322,5cyclictest8050irq/56-dwc_otg_21:15:080
154542530,2sleep015455-21ssh23:05:050
572399521,6cyclictest0-21swapper/120:30:221
5722995227,10cyclictest23191-21grep19:55:380
5722995226,11cyclictest101ktimersoftd/021:25:270
5722995217,16cyclictest0-21swapper/000:30:220
5722995217,16cyclictest0-21swapper/000:30:220
5723995119,21cyclictest0-21swapper/120:40:221
572299519,25cyclictest0-21swapper/000:00:190
572299518,25cyclictest0-21swapper/022:40:180
572299514,8cyclictest0-21swapper/020:20:210
572299512,8cyclictest26518-21apt-config22:00:080
572299512,36cyclictest0-21swapper/020:00:220
572299512,24cyclictest0-21swapper/020:45:200
572299512,24cyclictest0-21swapper/020:45:200
5722995117,6cyclictest7950irq/56-dwc_otg_22:20:200
572299511,26cyclictest10650-21cron22:20:080
5722995019,8cyclictest0-21swapper/023:45:200
572599494,24cyclictest7950irq/56-dwc_otg_23:25:253
572599494,24cyclictest7950irq/56-dwc_otg_23:25:253
572299499,13cyclictest0-21swapper/019:15:200
5722994924,5cyclictest6915-21unixbench_singl19:10:360
572299492,34cyclictest0-21swapper/000:30:090
5722994922,15cyclictest0-21swapper/020:25:190
572299491,29cyclictest3241-21grep22:10:290
572299491,28cyclictest7866-21apt-get23:35:080
572299491,23cyclictest9-21ksoftirqd/022:50:190
572299483,32cyclictest9420-21aten_rbpower_en19:20:220
5722994826,6cyclictest9-21ksoftirqd/000:05:380
5722994823,11cyclictest26080-21ls00:35:260
5722994822,18cyclictest9-21ksoftirqd/000:20:200
5722994816,25cyclictest0-21swapper/020:10:190
572299481,23cyclictest0-21swapper/023:55:190
572499479,24cyclictest0-21swapper/220:40:222
5722994727,6cyclictest125-21systemd-journal20:55:080
5722994724,6cyclictest13-21rcuc/019:30:350
5722994722,5cyclictest12405-21acpi23:40:170
572299471,3cyclictest0-21swapper/023:15:250
572299471,25cyclictest32038-21modprobe23:25:090
572299471,24cyclictest1835-21sh21:30:240
572299471,24cyclictest0-21swapper/019:35:310
572399461,14cyclictest0-21swapper/122:40:211
572499457,25cyclictest0-21swapper/221:00:212
572399451,32cyclictest0-21swapper/123:19:401
572299452,31cyclictest0-21swapper/021:16:220
572299451,32cyclictest30105-21ps20:15:330
572299451,32cyclictest0-21swapper/020:37:280
572399447,26cyclictest0-21swapper/120:10:211
5722994420,13cyclictest0-21swapper/021:05:350
572299431,33cyclictest13-21rcuc/021:00:310
572399421,6cyclictest22704-21aten_rbpower_cu21:55:231
5722994223,3cyclictest0-21swapper/019:45:310
5722994223,3cyclictest0-21swapper/019:45:310
572299422,19cyclictest0-21swapper/019:50:250
533224222,14sleep00-21swapper/019:08:350
74112410,1sleep30-21swapper/323:34:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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