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2026-03-10 - 10:31
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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 Tue Mar 10, 2026 00:49:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
100659922288,34cyclictest151rcu_preempt22:41:264
87752194186,6sleep260-21swapper/2619:09:5619
100579919418,141cyclictest0-21swapper/1121:34:513
3273911900,182ptp4l0-21swapper/119:08:301
101249918410,133cyclictest0-21swapper/2000:35:2313
101249917610,163cyclictest0-21swapper/2023:50:4213
101249917610,163cyclictest0-21swapper/2023:50:4213
100579917136,89cyclictest0-21swapper/1122:12:423
100579917136,89cyclictest0-21swapper/1122:12:413
101249916710,121cyclictest0-21swapper/2022:11:4313
101249916710,121cyclictest0-21swapper/2022:11:4313
330891157149,6phc2sys0-21swapper/219:05:5612
100579915728,79cyclictest0-21swapper/1123:25:563
100579915728,79cyclictest0-21swapper/1123:25:563
101249915510,100cyclictest0-21swapper/2019:30:1213
85112143134,8sleep90-21swapper/919:05:5531
100949914226,114cyclictest0-21swapper/1621:38:038
10043991420,83cyclictest0-21swapper/919:46:4631
101249914110,130cyclictest0-21swapper/2020:25:1513
100949914126,114cyclictest0-21swapper/1623:25:478
100949914126,114cyclictest0-21swapper/1623:25:478
100949914024,88cyclictest0-21swapper/1622:05:098
9998991390,88cyclictest0-21swapper/320:06:4123
10134991390,84cyclictest0-21swapper/2122:04:0314
101249913910,79cyclictest0-21swapper/2021:15:0313
10134991380,81cyclictest0-21swapper/2119:35:1414
100949913825,70cyclictest0-21swapper/1600:08:158
100949913825,70cyclictest0-21swapper/1600:08:148
10057991380,83cyclictest0-21swapper/1119:15:173
102049913652,51cyclictest0-21swapper/3100:10:5125
101249913653,62cyclictest0-21swapper/2019:10:3313
100949913626,69cyclictest0-21swapper/1621:25:188
101249913544,55cyclictest0-21swapper/2000:01:0913
101249913544,55cyclictest0-21swapper/2000:01:0913
100949913519,96cyclictest0-21swapper/1621:25:018
101249913453,63cyclictest0-21swapper/2023:04:3013
101249913428,66cyclictest0-21swapper/2023:55:1613
101249913428,66cyclictest0-21swapper/2023:55:1613
101249913427,65cyclictest0-21swapper/2022:28:5513
100949913416,87cyclictest0-21swapper/1623:10:188
100949913416,87cyclictest0-21swapper/1623:10:188
102049913346,86cyclictest0-21swapper/3121:36:0925
101249913243,64cyclictest0-21swapper/2022:19:1313
101249913230,74cyclictest0-21swapper/2021:45:2413
101249913230,69cyclictest0-21swapper/2022:36:5913
101249913228,67cyclictest0-21swapper/2022:01:5713
101249913226,63cyclictest0-21swapper/2022:24:2413
10111991321,83cyclictest0-21swapper/1819:49:2010
100949913217,90cyclictest0-21swapper/1620:00:118
99989913122,69cyclictest0-21swapper/321:43:4223
9998991310,82cyclictest0-21swapper/320:40:3923
101249913143,71cyclictest0-21swapper/2023:11:2313
101249913143,71cyclictest0-21swapper/2023:11:2313
101249913141,62cyclictest0-21swapper/2021:50:1313
101249913133,62cyclictest0-21swapper/2022:45:1413
99989913033,97cyclictest0-21swapper/320:25:0123
99989913030,79cyclictest0-21swapper/322:42:1223
101249913050,58cyclictest0-21swapper/2021:40:3313
101249913031,70cyclictest0-21swapper/2021:28:4913
101249913030,69cyclictest0-21swapper/2023:26:5413
101249913030,69cyclictest0-21swapper/2023:26:5413
101249913029,72cyclictest0-21swapper/2023:15:1313
101249913029,72cyclictest0-21swapper/2023:15:1313
100949913022,67cyclictest0-21swapper/1622:14:128
100949913022,67cyclictest0-21swapper/1622:14:118
99989912916,112cyclictest0-21swapper/323:08:2723
99989912916,112cyclictest0-21swapper/323:08:2723
10124991299,91cyclictest0-21swapper/2023:24:3213
10124991299,91cyclictest0-21swapper/2023:24:3113
101249912951,67cyclictest0-21swapper/2000:23:0413
101249912944,62cyclictest0-21swapper/2023:38:1013
101249912944,62cyclictest0-21swapper/2023:38:1013
101249912943,55cyclictest0-21swapper/2022:52:1113
101249912931,71cyclictest0-21swapper/2020:40:1313
101249912930,69cyclictest0-21swapper/2023:43:4713
101249912930,69cyclictest0-21swapper/2023:43:4613
101249912929,67cyclictest0-21swapper/2023:09:2013
101249912929,67cyclictest0-21swapper/2023:09:2013
101249912928,67cyclictest0-21swapper/2019:25:2513
101249912928,66cyclictest0-21swapper/2022:10:0213
101249912928,65cyclictest0-21swapper/2000:15:0213
101249912926,61cyclictest0-21swapper/2019:21:5413
100949912921,70cyclictest0-21swapper/1600:20:098
100579912915,84cyclictest0-21swapper/1121:28:253
99989912837,90cyclictest0-21swapper/320:35:0123
10189991280,99cyclictest191-21ksoftirqd/2921:50:3322
101249912840,53cyclictest0-21swapper/2021:31:3013
101249912831,59cyclictest0-21swapper/2022:30:1713
101249912828,66cyclictest0-21swapper/2000:34:5013
10029991282,69cyclictest0-21swapper/719:25:2229
10124991273,71cyclictest0-21swapper/2020:16:4213
101249912733,62cyclictest0-21swapper/2000:07:0213
101249912733,62cyclictest0-21swapper/2000:07:0213
101249912731,76cyclictest0-21swapper/2021:12:2313
101249912725,64cyclictest0-21swapper/2000:10:1413
101249912630,74cyclictest0-21swapper/2020:35:2413
101249912628,72cyclictest0-21swapper/2021:09:1713
101249912627,67cyclictest0-21swapper/2021:56:0213
101249912621,69cyclictest1361rcuc/2000:30:0113
99989912537,32cyclictest0-21swapper/300:08:5923
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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