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2026-01-02 - 18:08
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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 rackcslot8.osadl.org (updated Fri Jan 02, 2026 12:48:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
177399928387,1cyclictest151rcu_preempt12:08:3013
149472185177,6sleep210-21swapper/2107:05:2114
177549915926,71cyclictest0-21swapper/2407:25:1317
17754991590,116cyclictest0-21swapper/2412:15:2317
163572155148,6sleep140-21swapper/1407:08:586
177549914864,63cyclictest0-21swapper/2409:59:5417
177549914864,63cyclictest0-21swapper/2409:59:5417
17730991464,39cyclictest0-21swapper/1809:25:0010
17730991464,140cyclictest0-21swapper/1811:45:0110
17730991454,140cyclictest0-21swapper/1811:09:4510
17730991454,113cyclictest0-21swapper/1811:34:2010
17730991454,109cyclictest0-21swapper/1811:25:1510
177549914433,68cyclictest0-21swapper/2411:10:2517
17730991444,110cyclictest0-21swapper/1809:46:1510
17730991444,110cyclictest0-21swapper/1809:46:1510
177439914254,55cyclictest0-21swapper/2109:46:2614
177439914254,55cyclictest0-21swapper/2109:46:2614
177439914228,67cyclictest0-21swapper/2109:38:2514
177509914129,108cyclictest0-21swapper/2308:15:0016
177439914152,56cyclictest0-21swapper/2112:20:1814
177599914022,91cyclictest0-21swapper/2512:35:3918
177599914018,119cyclictest0-21swapper/2511:49:2518
177439914058,62cyclictest0-21swapper/2112:03:1414
177439914050,56cyclictest0-21swapper/2110:36:0914
177439914050,56cyclictest0-21swapper/2110:36:0814
17759991370,82cyclictest0-21swapper/2512:01:4218
177549913653,61cyclictest0-21swapper/2408:05:0117
177439913655,61cyclictest0-21swapper/2112:09:0214
177439913629,65cyclictest0-21swapper/2110:14:1314
177439913629,65cyclictest0-21swapper/2110:14:1314
177439913628,62cyclictest0-21swapper/2108:55:0214
177549913530,76cyclictest0-21swapper/2411:42:1617
177439913531,65cyclictest0-21swapper/2107:40:0414
177439913528,63cyclictest0-21swapper/2108:39:3814
177439913527,62cyclictest0-21swapper/2109:05:1714
17730991355,106cyclictest0-21swapper/1810:36:3810
17730991355,106cyclictest0-21swapper/1810:36:3710
176489913549,56cyclictest0-21swapper/309:16:4523
177439913430,66cyclictest0-21swapper/2111:50:1214
177439913428,67cyclictest0-21swapper/2111:55:1314
176999913448,55cyclictest0-21swapper/1107:20:243
17796991330,94cyclictest203-21ksoftirqd/3109:30:0225
17754991334,104cyclictest0-21swapper/2410:00:1017
17754991334,104cyclictest0-21swapper/2410:00:1017
177549913326,73cyclictest0-21swapper/2409:00:0117
177439913332,66cyclictest0-21swapper/2109:40:5214
177439913332,66cyclictest0-21swapper/2109:40:5214
176489913351,53cyclictest0-21swapper/312:32:5223
177549913246,60cyclictest0-21swapper/2411:55:2317
177549913244,63cyclictest0-21swapper/2410:38:4017
177549913244,63cyclictest0-21swapper/2410:38:4017
177549913242,58cyclictest0-21swapper/2408:00:1217
177549913237,60cyclictest0-21swapper/2408:33:0417
177439913229,63cyclictest0-21swapper/2107:10:2614
17730991324,110cyclictest0-21swapper/1809:41:3410
17730991324,110cyclictest0-21swapper/1809:41:3410
176489913227,68cyclictest0-21swapper/309:56:3423
176489913227,68cyclictest0-21swapper/309:56:3423
176489913226,62cyclictest0-21swapper/310:24:3623
176489913226,62cyclictest0-21swapper/310:24:3623
17648991320,78cyclictest0-21swapper/310:12:1923
17648991320,78cyclictest0-21swapper/310:12:1923
17782991310,79cyclictest0-21swapper/2910:30:4022
17782991310,79cyclictest0-21swapper/2910:30:4022
177549913126,65cyclictest0-21swapper/2410:45:0417
177549913126,65cyclictest0-21swapper/2410:45:0417
177549913126,62cyclictest0-21swapper/2411:09:0817
177439913127,65cyclictest0-21swapper/2111:18:5314
176999913152,61cyclictest0-21swapper/1109:42:313
176999913152,61cyclictest0-21swapper/1109:42:313
176999913148,54cyclictest0-21swapper/1110:12:323
176999913148,54cyclictest0-21swapper/1110:12:323
176999913129,66cyclictest0-21swapper/1111:33:463
176999913128,68cyclictest0-21swapper/1111:20:513
176999913127,68cyclictest0-21swapper/1111:15:303
176489913143,59cyclictest0-21swapper/312:17:5423
176489913141,58cyclictest0-21swapper/311:14:5023
176489913128,68cyclictest0-21swapper/311:58:4023
177599913022,92cyclictest0-21swapper/2511:43:1718
177549913034,61cyclictest0-21swapper/2409:45:1117
177549913034,61cyclictest0-21swapper/2409:45:1117
177549913031,79cyclictest0-21swapper/2409:30:1617
177549913030,67cyclictest0-21swapper/2410:50:2417
177549913030,67cyclictest0-21swapper/2410:50:2417
177549913025,62cyclictest0-21swapper/2411:04:5017
177549913025,59cyclictest0-21swapper/2410:23:1017
177549913025,59cyclictest0-21swapper/2410:23:0917
177439913026,62cyclictest0-21swapper/2112:12:3514
177439913026,61cyclictest0-21swapper/2109:34:0814
17730991300,84cyclictest0-21swapper/1812:09:0410
176999913050,59cyclictest0-21swapper/1111:57:443
176999913029,70cyclictest0-21swapper/1107:55:073
176489913027,70cyclictest0-21swapper/309:26:3823
17759991290,89cyclictest0-21swapper/2511:33:2318
177549912975,47cyclictest0-21swapper/2411:50:1617
177549912954,58cyclictest0-21swapper/2411:15:0117
177549912954,54cyclictest0-21swapper/2410:28:1417
177549912954,54cyclictest0-21swapper/2410:28:1417
177549912947,59cyclictest0-21swapper/2412:25:0117
177549912943,86cyclictest0-21swapper/2407:10:0117
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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