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2026-07-21 - 19:46

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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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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 rack0slot6s.osadl.org (updated Tue Jul 21, 2026 00:46:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
326966499680,26cyclictest3506025-40tracker-miner-f23:43:5910
3269623996520,43cyclictest0-21swapper/400:18:0414
326962399640,63cyclictest0-21swapper/422:43:5614
3269628996320,43cyclictest0-21swapper/621:44:4816
3269628996320,42cyclictest0-21swapper/623:43:5916
326961599635,34cyclictest0-21swapper/121:33:291
3269626996216,43cyclictest0-21swapper/500:18:0415
3269623996221,6cyclictest0-21swapper/420:26:4814
3269664996016,43cyclictest0-21swapper/1822:43:5610
3269655996016,42cyclictest0-21swapper/1500:18:057
3269664995920,38cyclictest0-21swapper/1819:51:4810
3269655995917,7cyclictest0-21swapper/1520:26:487
3269655995818,39cyclictest0-21swapper/1522:43:567
3269626995818,40cyclictest0-21swapper/522:43:5615
3269664995712,44cyclictest0-21swapper/1823:53:3110
3269655995712,44cyclictest0-21swapper/1523:53:317
3269623995717,4cyclictest0-21swapper/423:53:3114
3269628995616,39cyclictest0-21swapper/619:51:4916
3269664995416,38cyclictest0-21swapper/1820:26:4910
3269664995414,40cyclictest3522947-21kworker/18:2+events00:18:0410
3269628995410,42cyclictest0-21swapper/600:18:0516
3269626995412,4cyclictest0-21swapper/523:53:3115
3269628995320,32cyclictest0-21swapper/623:06:5216
326966499520,0cyclictest0-21swapper/1823:06:5310
3269628995212,39cyclictest0-21swapper/622:43:5616
3269634995114,1cyclictest0-21swapper/819:54:1118
3269623995114,36cyclictest0-21swapper/419:23:4814
3269623995018,32cyclictest0-21swapper/420:01:4214
3269623995018,32cyclictest0-21swapper/420:01:4214
326962899496,41cyclictest0-21swapper/623:53:3116
3269632994847,1cyclictest3514311-40tracker-miner-f23:51:4417
326964699470,46cyclictest0-21swapper/1220:04:474
326964699470,46cyclictest0-21swapper/1220:04:474
326962699470,2cyclictest3424483-40tracker-miner-f22:07:1215
326962399470,35cyclictest3450283-40tracker-miner-f22:38:2214
326966499460,41cyclictest0-21swapper/1821:01:0010
326965599460,33cyclictest3351647-40tracker-miner-f20:42:357
326962899460,43cyclictest0-21swapper/620:53:0316
3269626994642,4cyclictest3527384-40tracker-miner-f00:07:3015
326962699460,34cyclictest0-21swapper/523:37:4715
3269623994636,9cyclictest2605781-21IPC14
3269623994616,28cyclictest0-21swapper/423:40:0314
326962399460,0cyclictest0-21swapper/421:17:5314
326720524635,6sleep60-21swapper/619:05:2016
326966499450,44cyclictest3292718-40tracker-miner-f19:35:1210
326965599450,43cyclictest0-21swapper/1522:31:287
326965599450,34cyclictest0-21swapper/1523:37:477
326963799450,44cyclictest0-21swapper/920:46:5019
3269628994519,25cyclictest0-21swapper/619:47:5916
326962899450,1cyclictest0-21swapper/620:15:2216
326962699450,34cyclictest3338629-40tracker-miner-f20:26:0115
326962699450,34cyclictest0-21swapper/520:54:5115
326962399450,34cyclictest3510074-40tracker-miner-f23:46:5814
326962399450,34cyclictest3471869-40tracker-miner-f23:05:0014
3269611994544,1cyclictest716-21usb-storage23:13:250
3269611994544,1cyclictest716-21usb-storage23:13:240
3269611994544,1cyclictest3355999-40tracker-miner-f20:48:250
326961199450,44cyclictest0-21swapper/022:38:250
326961199450,44cyclictest0-21swapper/021:12:220
326891424541,2sleep50-21swapper/519:07:3915
200099450,35ntpd0-21swapper/1419:05:216
326966499440,37cyclictest2611841-21Isolated17:18:1110
3269655994436,7cyclictest0-21swapper/1521:17:537
326965599440,33cyclictest3317439-40tracker-miner-f20:03:487
326965599440,33cyclictest3317439-40tracker-miner-f20:03:487
326965599440,1cyclictest3399031-40tracker-miner-f21:40:127
326964399440,43cyclictest2611845-21Isolated17:18:113
3269632994444,0cyclictest0-21swapper/720:26:4917
326962899440,2cyclictest3476197-40tracker-miner-f23:10:2316
326962899440,2cyclictest3476197-40tracker-miner-f23:10:2216
326962899440,1cyclictest3433184-40tracker-miner-f22:18:2416
326962899440,1cyclictest3411725-40tracker-miner-f21:53:3816
326962899440,1cyclictest3351725-40tracker-miner-f20:44:0016
3269626994442,1cyclictest189750irq/155-eno123:49:0915
326962699440,43cyclictest3321508-40tracker-miner-f20:06:4015
326962699440,43cyclictest3321508-40tracker-miner-f20:06:3915
326962699440,34cyclictest3471719-40tracker-miner-f23:02:5615
326962699440,1cyclictest3273312-40tracker-miner-f19:12:2015
3269623994417,26cyclictest0-21swapper/400:27:0614
326962399440,35cyclictest2611841-21Isolated17:18:1114
3269611994444,0cyclictest0-21swapper/023:22:030
3269611994443,1cyclictest2611845-21Isolated17:18:110
3269611994443,1cyclictest0-21swapper/022:21:170
3269611994443,0cyclictest0-21swapper/019:52:100
3269611994443,0cyclictest0-21swapper/000:27:020
3269611994439,3cyclictest6575-21CPU0
182198440,42rtkit-daemon0-21swapper/019:07:560
3269664994334,8cyclictest3381712-40tracker-miner-f21:17:5310
326966499430,42cyclictest0-21swapper/1820:06:0110
326966499430,42cyclictest0-21swapper/1820:06:0110
326966499430,36cyclictest3544513-40tracker-miner-f00:26:5910
326966499430,33cyclictest0-21swapper/1819:58:3510
326966499430,1cyclictest0-21swapper/1800:35:3610
3269658994342,1cyclictest0-21swapper/1621:17:538
3269655994342,1cyclictest0-21swapper/1523:49:107
3269655994340,2cyclictest2611841-21Isolated17:18:117
3269655994333,10cyclictest3446218-40tracker-miner-f22:35:277
3269655994332,8cyclictest0-21swapper/1522:06:207
3269655994332,11cyclictest0-21swapper/1522:02:477
3269655994332,10cyclictest3480401-40tracker-miner-f23:14:257
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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