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2025-08-29 - 12:03

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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 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.
Unexpectedly long latencies may be caused by SMIs
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 rack0slot4s.osadl.org (updated Fri Aug 29, 2025 00:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32955122377371,4sleep150-21swapper/1519:05:497
32955692370344,22sleep120-21swapper/1219:06:354
32956992369333,12sleep40-21swapper/419:08:0410
32956262362342,13sleep30-21swapper/319:07:149
32957002359319,14sleep50-21swapper/519:08:0511
32955212357337,13sleep70-21swapper/719:05:5713
32956622353333,13sleep80-21swapper/819:07:3514
32958212352331,13sleep140-21swapper/1419:09:356
32956192352332,13sleep130-21swapper/1319:07:095
32958352351329,14sleep60-21swapper/619:09:4312
32957372351331,13sleep00-21swapper/019:08:320
32957502350331,12sleep100-21swapper/1019:08:412
32955472349329,13sleep90-21swapper/919:06:1615
32958262348328,13sleep10-21swapper/119:09:381
32957962348329,12sleep110-21swapper/1119:09:143
32956012348329,12sleep20-21swapper/219:06:578
3296328995345,4cyclictest0-21swapper/1320:01:475
3296328995147,4cyclictest0-21swapper/1321:23:415
3296328995147,4cyclictest0-21swapper/1320:54:515
329632899506,40cyclictest0-21swapper/1320:38:535
3296328995046,4cyclictest0-21swapper/1322:31:095
329632899497,38cyclictest0-21swapper/1300:30:135
329632899480,41cyclictest3176244-21kworker/13:1-events20:20:365
329632899472,42cyclictest1411ktimers/1323:01:475
3296317994745,1cyclictest3372534-21kworker/u32:0+events_unbound21:15:2415
329632899466,39cyclictest0-21swapper/1323:18:055
3296328994642,4cyclictest0-21swapper/1320:11:065
329632899462,41cyclictest1411ktimers/1321:07:165
329632899462,40cyclictest1411ktimers/1320:47:235
329632899462,40cyclictest1411ktimers/1320:43:075
329632899461,40cyclictest3548097-21kworker/13:0-events00:05:495
3296323994646,0cyclictest0-21swapper/1121:56:283
329632899457,38cyclictest0-21swapper/1323:25:545
329632899457,37cyclictest0-21swapper/1323:53:075
329632899453,38cyclictest1411ktimers/1323:08:535
329632899453,38cyclictest1411ktimers/1321:56:215
329632899452,39cyclictest1411ktimers/1322:25:315
3296328994519,23cyclictest1411ktimers/1321:25:475
329632899451,40cyclictest1411ktimers/1322:12:455
329632899451,40cyclictest1411ktimers/1319:41:575
3296317994545,0cyclictest0-21swapper/922:12:0415
329632899443,17cyclictest1411ktimers/1322:51:495
329632899441,39cyclictest1411ktimers/1323:55:495
329632899441,39cyclictest1411ktimers/1320:58:455
329632899432,40cyclictest1411ktimers/1319:45:555
329632899432,40cyclictest1411ktimers/1300:22:205
329632899432,40cyclictest0-21swapper/1320:31:255
329632899432,17cyclictest1411ktimers/1300:29:145
329632899432,17cyclictest1411ktimers/1300:00:055
3296328994320,23cyclictest0-21swapper/1323:45:335
329632899431,41cyclictest3176244-21kworker/13:1-events19:59:235
3296317994343,0cyclictest0-21swapper/923:56:5315
329632899422,1cyclictest1411ktimers/1321:52:055
329632899422,1cyclictest1411ktimers/1321:52:055
3296328994218,24cyclictest0-21swapper/1321:16:285
329632899421,1cyclictest1411ktimers/1322:36:195
329632899421,17cyclictest1411ktimers/1323:38:455
329632899421,17cyclictest1411ktimers/1322:41:085
329632899421,17cyclictest1411ktimers/1319:17:475
329632899421,17cyclictest1411ktimers/1300:19:545
3296302994242,0cyclictest0-21swapper/422:40:2110
329632899412,1cyclictest1411ktimers/1320:08:345
329632899411,40cyclictest1411ktimers/1321:11:325
329632899411,39cyclictest3489186-21kworker/13:2-events22:57:255
329632899411,1cyclictest1411ktimers/1319:31:245
329632899411,17cyclictest1411ktimers/1322:15:335
329632899411,17cyclictest1411ktimers/1321:37:095
329632899410,0cyclictest0-21swapper/1322:03:335
3296317994141,0cyclictest0-21swapper/922:17:2315
3296317994141,0cyclictest0-21swapper/920:53:1415
329632899401,0cyclictest3388212-21kworker/13:0-events22:07:145
329632899401,0cyclictest3176244-21kworker/13:1-events20:28:375
329632899400,40cyclictest1411ktimers/1322:45:305
329632899400,39cyclictest0-21swapper/1319:11:175
329632899400,1cyclictest1411ktimers/1321:03:475
329632899400,1cyclictest1411ktimers/1319:37:005
329632399400,39cyclictest0-21swapper/1119:43:333
329632399400,39cyclictest0-21swapper/1100:16:433
3296317994040,0cyclictest0-21swapper/919:48:4315
329632899390,0cyclictest3489186-21kworker/13:2-events23:10:135
329632899390,0cyclictest0-21swapper/1321:49:095
329632899390,0cyclictest0-21swapper/1321:49:085
3296319993937,1cyclictest3298675-21kworker/u32:1+events_unbound19:40:192
329632899381,37cyclictest0-21swapper/1321:32:035
3296317993838,0cyclictest106-21ksoftirqd/921:42:4415
3296317993838,0cyclictest106-21ksoftirqd/921:42:4415
3296317993838,0cyclictest0-21swapper/920:12:0215
3296317993837,1cyclictest3372534-21kworker/u32:0+events_unbound00:05:2115
329631799380,38cyclictest3451357-21kworker/9:2+events23:51:4115
329631799380,38cyclictest0-21swapper/900:29:2515
329631799380,0cyclictest0-21swapper/921:25:0115
3296307993836,1cyclictest3313588-21kworker/u32:2+events_unbound19:50:1812
329632899375,28cyclictest0-21swapper/1320:15:305
3296317993737,0cyclictest0-21swapper/920:39:3115
3296317993736,1cyclictest0-21swapper/922:58:1915
3296302993737,0cyclictest0-21swapper/420:10:2010
3296302993736,1cyclictest3341861-21kworker/u32:2+flush-259:021:25:2010
3296323993636,0cyclictest0-21swapper/1122:36:483
3296317993636,0cyclictest0-21swapper/923:00:0515
329631799360,36cyclictest0-21swapper/923:22:1015
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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