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2026-05-17 - 06:22
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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 Sun May 17, 2026 00:48:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221939927695,3cyclictest151rcu_preempt20:50:1617
220899923032,1cyclictest151rcu_preempt00:20:343
190442215205,7sleep290-21swapper/2919:05:1922
190442215205,7sleep290-21swapper/2919:05:1922
220379919022,72cyclictest0-21swapper/423:16:3926
222149917181,40cyclictest151rcu_preempt22:20:1920
22202991691,134cyclictest0-21swapper/2521:50:3718
22202991691,127cyclictest0-21swapper/2522:50:0018
22202991682,109cyclictest0-21swapper/2523:19:0818
222179916665,98cyclictest185-21ksoftirqd/2800:36:4121
22202991661,134cyclictest0-21swapper/2521:37:4718
22202991621,116cyclictest0-21swapper/2521:42:0418
22214991590,129cyclictest151rcu_preempt00:01:0420
222179915633,94cyclictest0-21swapper/2822:15:3421
193752154144,7sleep310-21swapper/3119:05:2125
193752154144,7sleep310-21swapper/3119:05:2025
222149915318,105cyclictest151rcu_preempt22:27:3220
22202991531,111cyclictest0-21swapper/2522:35:1418
220379915341,55cyclictest151rcu_preempt23:04:2226
222149915010,137cyclictest151rcu_preempt23:11:5420
221319915030,66cyclictest0-21swapper/1722:45:159
222149914912,105cyclictest151rcu_preempt20:50:4020
22051991481,85cyclictest0-21swapper/600:00:1128
220269914847,62cyclictest0-21swapper/223:27:4612
222179914728,80cyclictest0-21swapper/2820:00:2421
222179914526,110cyclictest0-21swapper/2821:00:1421
222149914511,109cyclictest151rcu_preempt21:43:1020
22202991451,113cyclictest0-21swapper/2519:26:5218
222179914426,81cyclictest0-21swapper/2821:40:2021
222179914426,78cyclictest0-21swapper/2822:10:1921
22202991442,111cyclictest0-21swapper/2522:50:1118
22169991440,83cyclictest0-21swapper/2120:15:2314
22131991440,88cyclictest0-21swapper/1720:28:109
222179914225,79cyclictest0-21swapper/2820:35:2121
22214991420,83cyclictest0-21swapper/2722:41:5720
22169991420,82cyclictest0-21swapper/2119:15:0314
22169991420,82cyclictest0-21swapper/2119:15:0314
220269914129,73cyclictest0-21swapper/222:55:5912
22217991390,87cyclictest0-21swapper/2820:20:1421
221119913840,61cyclictest0-21swapper/1323:28:355
22111991380,86cyclictest0-21swapper/1323:45:155
222149913730,64cyclictest0-21swapper/2722:16:5120
22202991371,135cyclictest0-21swapper/2521:27:3818
222179913619,113cyclictest0-21swapper/2800:15:5221
222149913636,97cyclictest151rcu_preempt23:30:3620
221119913637,69cyclictest0-21swapper/1322:07:045
222179913520,68cyclictest0-21swapper/2819:14:5521
222179913520,68cyclictest0-21swapper/2819:14:5521
222029913518,115cyclictest151rcu_preempt23:09:4318
221119913528,65cyclictest0-21swapper/1322:35:195
220309913348,54cyclictest0-21swapper/322:04:4023
220309913345,62cyclictest0-21swapper/323:23:4723
220269913349,64cyclictest0-21swapper/222:46:2212
220269913343,53cyclictest0-21swapper/220:15:0612
222179913249,57cyclictest0-21swapper/2822:42:0121
22202991321,98cyclictest0-21swapper/2521:10:5118
220269913230,67cyclictest0-21swapper/200:04:2412
220269913229,66cyclictest0-21swapper/223:48:2212
220269913227,68cyclictest0-21swapper/200:20:5812
220269913227,67cyclictest0-21swapper/222:11:2212
220309913128,66cyclictest0-21swapper/319:42:3123
220309913127,69cyclictest0-21swapper/323:47:1823
220269913122,73cyclictest0-21swapper/223:54:1312
222179913051,58cyclictest0-21swapper/2821:46:1021
222179913029,67cyclictest0-21swapper/2823:40:4921
220309913048,58cyclictest0-21swapper/323:05:0523
220269913057,57cyclictest0-21swapper/221:09:3712
220269913056,64cyclictest0-21swapper/223:24:5112
220269913047,52cyclictest0-21swapper/200:12:1112
220269913028,70cyclictest0-21swapper/220:50:1112
220269913028,65cyclictest0-21swapper/223:10:2512
220269913027,66cyclictest0-21swapper/219:45:0112
222179912946,58cyclictest0-21swapper/2821:16:1521
222179912938,59cyclictest0-21swapper/2822:25:1321
222179912931,47cyclictest0-21swapper/2822:56:1321
222179912925,72cyclictest0-21swapper/2821:31:1421
22202991292,97cyclictest0-21swapper/2519:30:3718
220519912923,73cyclictest0-21swapper/622:19:0928
220309912927,68cyclictest0-21swapper/322:39:5823
220309912926,67cyclictest0-21swapper/319:55:2223
220309912925,69cyclictest0-21swapper/322:08:5823
220269912958,70cyclictest0-21swapper/200:34:5112
220269912948,64cyclictest0-21swapper/223:59:4912
220269912927,67cyclictest0-21swapper/219:39:1812
220269912927,66cyclictest0-21swapper/223:39:1612
220269912925,68cyclictest0-21swapper/219:40:3712
222179912831,78cyclictest0-21swapper/2822:51:3821
222179912828,68cyclictest0-21swapper/2823:35:1321
222149912859,67cyclictest151rcu_preempt21:03:3720
221699912849,52cyclictest0-21swapper/2123:21:5614
221699912840,58cyclictest0-21swapper/2121:00:1914
221319912825,59cyclictest0-21swapper/1719:51:519
221119912885,29cyclictest0-21swapper/1321:58:575
220309912848,55cyclictest0-21swapper/300:33:4823
220309912827,70cyclictest0-21swapper/320:50:2423
220269912845,65cyclictest0-21swapper/221:21:2212
220269912831,74cyclictest0-21swapper/221:56:3812
220269912828,71cyclictest0-21swapper/220:14:0212
220269912828,61cyclictest0-21swapper/221:51:5112
220269912826,64cyclictest0-21swapper/219:20:3612
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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