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2025-12-14 - 02:30

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 Sun Dec 14, 2025 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30776991057,87cyclictest0-21swapper/022:53:020
30776991057,87cyclictest0-21swapper/022:53:020
207622970,6sleep2301ktimersoftd/220:13:052
15412820,2sleep10-21swapper/119:18:141
33142790,2sleep20-21swapper/220:53:102
3077699796,49cyclictest0-21swapper/020:42:590
120022790,7sleep03077699cyclictest21:18:080
30776997720,5cyclictest16764-21grep00:28:160
30776997719,10cyclictest25639-21latency_hist21:55:030
3077699737,14cyclictest0-21swapper/023:52:580
3077699691,24cyclictest0-21swapper/021:28:100
3077699691,21cyclictest0-21swapper/022:38:010
68172670,2sleep10-21swapper/121:03:111
3077699672,28cyclictest0-21swapper/020:53:130
3077699661,29cyclictest0-21swapper/023:28:000
180442650,3sleep218046-21grep21:33:152
3077699637,14cyclictest0-21swapper/020:18:010
3077699637,14cyclictest0-21swapper/020:18:010
30777996019,26cyclictest0-21swapper/123:58:011
30776996030,17cyclictest2725-21latency_hist23:50:030
3046725922,30sleep00-21swapper/019:09:330
3077699571,33cyclictest2016-21cat19:20:020
3077999565,10cyclictest0-21swapper/321:42:583
3077699565,17cyclictest7950irq/56-dwc_otg_23:58:010
30776995627,13cyclictest0-21swapper/021:43:140
30776995610,5cyclictest0-21swapper/022:25:050
3077699551,43cyclictest14331-21ls00:23:080
3077699551,43cyclictest14331-21ls00:23:080
30776995428,6cyclictest17950-21grep20:03:170
3077699542,36cyclictest0-21swapper/022:15:580
3077699542,36cyclictest0-21swapper/022:15:580
3077699542,28cyclictest0-21swapper/023:38:110
3077699542,28cyclictest0-21swapper/000:33:020
3077699539,24cyclictest10494-21fschecks_count00:13:060
30776995340,3cyclictest0-21swapper/000:40:020
30776995332,6cyclictest7750irq/56-dwc_otg23:08:080
30776995330,6cyclictest17068-21wget21:33:020
30776995329,14cyclictest0-21swapper/022:48:150
30776995328,3cyclictest0-21swapper/020:50:020
30776995328,15cyclictest0-21swapper/022:45:020
30776995326,5cyclictest26006-21wget20:28:000
3077699532,34cyclictest0-21swapper/019:13:050
3077699532,27cyclictest0-21swapper/020:00:020
30776995311,25cyclictest13266-21aten_rbpower_en19:53:010
3077799523,9cyclictest0-21swapper/121:47:571
3077799514,12cyclictest0-21swapper/121:52:591
30776995128,5cyclictest2410-21aten_rbpower_vo19:23:000
30776995121,6cyclictest9450irq/48-DMA09:42:410
30776995118,5cyclictest24412-21fschecks_count20:23:050
3077699511,29cyclictest30422-21switchtime20:38:130
3077699511,26cyclictest4616-21fschecks_time20:58:050
30779995029,5cyclictest39-21ksoftirqd/323:58:153
30776995033,4cyclictest7850irq/56-dwc_otg_22:12:560
30776995023,7cyclictest32158-21fschecks_time23:43:050
3077699502,26cyclictest0-21swapper/021:48:040
30776995021,5cyclictest7850irq/56-dwc_otg_23:35:010
30776995021,5cyclictest7850irq/56-dwc_otg_23:35:010
3077699501,24cyclictest18386-21tail23:03:160
3077799492,7cyclictest7950irq/56-dwc_otg_20:42:591
30776994926,5cyclictest0-21swapper/000:18:000
30776994923,15cyclictest0-21swapper/020:08:070
3077699491,26cyclictest10228-21cat21:13:070
117162490,1sleep20-21swapper/200:15:032
30776994831,6cyclictest7950irq/56-dwc_otg_23:23:120
30776994829,5cyclictest7750irq/56-dwc_otg19:48:140
3077799472,4cyclictest0-21swapper/100:13:021
30776994725,3cyclictest0-21swapper/022:03:070
30776994714,26cyclictest0-21swapper/023:14:020
3077899467,25cyclictest0-21swapper/222:15:082
3077899467,25cyclictest0-21swapper/222:15:082
3077699462,4cyclictest0-21swapper/000:05:030
30776994624,6cyclictest7850irq/56-dwc_otg_21:38:120
30776994610,34cyclictest7518-21latency_hist21:05:030
3077999457,23cyclictest0-21swapper/322:20:083
3077799457,25cyclictest0-21swapper/119:58:011
3077799453,8cyclictest0-21swapper/120:13:021
3077799453,14cyclictest7750irq/56-dwc_otg22:47:571
30776994525,5cyclictest8113-21fschecks_time19:38:030
30776994517,13cyclictest0-21swapper/019:31:240
30776994516,15cyclictest8837-21if_wlan000:08:070
30776994510,18cyclictest13-21rcuc/022:33:080
3077999447,25cyclictest0-21swapper/321:53:013
3077999447,22cyclictest0-21swapper/319:35:073
3077999444,6cyclictest0-21swapper/300:03:023
3077799447,28cyclictest0-21swapper/120:03:031
30776994424,4cyclictest10948-21idleruntime-cro19:45:020
30776994424,4cyclictest10948-21idleruntime-cro19:45:020
30776994422,3cyclictest0-21swapper/019:29:180
30776994416,13cyclictest0-21swapper/021:05:050
30776994416,13cyclictest0-21swapper/021:05:050
30776994416,12cyclictest1125-21runrttasks23:15:080
3077699441,21cyclictest0-21swapper/020:33:220
3077899437,24cyclictest0-21swapper/221:47:592
3077799437,26cyclictest0-21swapper/121:33:011
3077799437,24cyclictest0-21swapper/123:43:011
30776994323,13cyclictest0-21swapper/021:58:160
3077699431,23cyclictest16652-21grep22:58:140
291682436,26sleep229169-21munin-node19:07:572
3077999427,23cyclictest0-21swapper/322:43:013
3077999422,21cyclictest1780-21ls22:18:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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