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2026-08-07 - 21:58

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #6

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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  Intel
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Fri Aug 07, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23032991083,97cyclictest0-21swapper/009:53:520
23040991075,13cyclictest0-21swapper/310:48:443
23032991013,89cyclictest25628-21tune2fs10:43:510
23040991005,14cyclictest0-21swapper/308:10:063
2304099995,14cyclictest0-21swapper/310:40:313
2304099994,13cyclictest0-21swapper/309:30:443
2303299994,52cyclictest26996-21kworker/0:209:23:360
2304099984,69cyclictest0-21swapper/311:13:443
2304099984,13cyclictest18301-21munin-node10:33:433
2303299983,89cyclictest0-21swapper/009:59:200
2304099975,13cyclictest0-21swapper/309:27:593
2304099974,15cyclictest0-21swapper/308:18:513
2303299973,87cyclictest0-21swapper/011:21:230
2303299973,86cyclictest0-21swapper/010:18:450
2304099964,64cyclictest7224-21ssh11:04:003
2304099964,64cyclictest7224-21ssh11:04:003
2304099964,14cyclictest0-21swapper/311:13:323
2304099964,13cyclictest0-21swapper/311:28:483
23040999613,9cyclictest1447-21ssh10:08:343
2303799966,14cyclictest0-21swapper/108:10:541
2304099955,68cyclictest0-21swapper/310:59:453
2304099955,15cyclictest0-21swapper/310:24:333
2304099954,13cyclictest0-21swapper/309:58:573
2304099945,14cyclictest0-21swapper/310:23:333
2304099945,13cyclictest0-21swapper/309:43:403
2304099944,14cyclictest0-21swapper/309:15:383
2303299943,85cyclictest0-21swapper/007:58:560
2303299943,78cyclictest1227-21runrttasks10:24:210
2304099936,70cyclictest0-21swapper/309:01:003
2304099935,69cyclictest0-21swapper/308:36:563
2304099934,73cyclictest0-21swapper/310:14:293
2304099934,70cyclictest0-21swapper/308:27:473
2304099934,64cyclictest0-21swapper/309:13:363
2304099934,64cyclictest0-21swapper/309:13:363
2303299934,82cyclictest0-21swapper/008:27:110
2303299934,69cyclictest0-21swapper/008:39:000
2304099926,10cyclictest12878-21ssh09:34:103
2304099925,14cyclictest0-21swapper/309:50:323
2304099925,14cyclictest0-21swapper/309:50:323
2304099924,15cyclictest0-21swapper/310:08:503
23040999217,52cyclictest0-21swapper/311:26:103
23040999211,9cyclictest107550irq/46-eth011:18:503
2303799925,44cyclictest0-21swapper/108:49:081
2303299924,81cyclictest0-21swapper/009:14:080
2303299924,80cyclictest0-21swapper/010:48:590
2303299924,79cyclictest0-21swapper/009:25:350
2304099915,71cyclictest0-21swapper/308:33:113
2304099915,71cyclictest0-21swapper/308:33:113
2304099915,63cyclictest0-21swapper/306:13:543
2304099915,62cyclictest0-21swapper/309:07:303
2304099915,61cyclictest0-21swapper/308:53:413
2304099914,63cyclictest0-21swapper/309:43:213
2304099914,14cyclictest0-21swapper/308:13:513
2304099914,13cyclictest0-21swapper/309:21:153
2304099914,13cyclictest0-21swapper/308:44:093
2304099914,13cyclictest0-21swapper/307:38:183
2303299914,73cyclictest0-21swapper/006:19:210
2304099905,65cyclictest0-21swapper/310:46:133
2304099905,13cyclictest0-21swapper/306:23:593
2304099905,13cyclictest0-21swapper/306:23:593
23040999021,49cyclictest16049-21ssh10:28:553
23040999015,52cyclictest0-21swapper/308:08:243
23037999037,10cyclictest11544-21tr07:53:531
2303299904,79cyclictest0-21swapper/009:00:170
2303299904,78cyclictest0-21swapper/008:54:070
2303299904,68cyclictest0-21swapper/011:03:450
2303299904,68cyclictest0-21swapper/011:03:450
2303299903,79cyclictest0-21swapper/008:43:530
2303299903,79cyclictest0-21swapper/008:36:140
2304099895,14cyclictest0-21swapper/306:28:573
2304099894,15cyclictest0-21swapper/307:54:093
2304099894,13cyclictest0-21swapper/310:58:333
23040998916,51cyclictest0-21swapper/307:00:213
2303299896,67cyclictest0-21swapper/010:03:440
2303299894,78cyclictest0-21swapper/010:54:040
2303299894,60cyclictest0-21swapper/010:59:250
2303299893,79cyclictest0-21swapper/009:45:440
2303299893,78cyclictest0-21swapper/010:32:170
2303299893,77cyclictest0-21swapper/011:17:550
2303299893,50cyclictest0-21swapper/008:10:090
2304099884,70cyclictest0-21swapper/308:51:103
2304099884,65cyclictest0-21swapper/309:54:073
2303299884,77cyclictest0-21swapper/010:08:560
2303299884,77cyclictest0-21swapper/006:49:000
2303299884,76cyclictest0-21swapper/006:38:590
2303299884,67cyclictest0-21swapper/011:08:440
2303299883,78cyclictest0-21swapper/008:52:060
2303299883,77cyclictest0-21swapper/008:19:460
2304099874,63cyclictest0-21swapper/308:38:593
2304099874,59cyclictest0-21swapper/307:08:533
2304099874,59cyclictest0-21swapper/307:08:533
23040998718,46cyclictest0-21swapper/306:19:143
23040998715,50cyclictest0-21swapper/307:18:153
23032998740,41cyclictest0-21swapper/009:08:590
23032998740,41cyclictest0-21swapper/009:08:590
2303299874,77cyclictest0-21swapper/006:59:030
2303299874,76cyclictest12486-21kworker/0:008:08:150
2303299873,76cyclictest0-21swapper/008:28:470
2303299873,76cyclictest0-21swapper/008:28:470
2303299873,53cyclictest20799-21missed_timers07:04:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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