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2026-09-07 - 23:10
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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 Mon Sep 07, 2026 12:48:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
928599363165,1cyclictest151rcu_preempt11:32:5612
3273913400,331ptp4l0-21swapper/107:05:151
92759924698,2cyclictest13-21ksoftirqd/011:53:030
79002204197,6sleep200-21swapper/2007:07:1013
93379915822,130cyclictest0-21swapper/1309:33:115
93379915822,130cyclictest0-21swapper/1309:33:115
93379915822,109cyclictest0-21swapper/1310:08:465
94399915712,116cyclictest0-21swapper/2811:13:5821
93379915622,118cyclictest32610-21diskmemload12:19:565
94399915512,106cyclictest0-21swapper/2809:48:4321
94399915512,106cyclictest0-21swapper/2809:48:4321
80012154147,6sleep180-21swapper/1807:08:4410
93379915322,111cyclictest0-21swapper/1310:50:175
94399915212,105cyclictest0-21swapper/2809:16:5421
94399915212,105cyclictest0-21swapper/2809:16:5421
92859914560,43cyclictest0-21swapper/209:24:5912
92859914560,43cyclictest0-21swapper/209:24:5912
92859914259,52cyclictest0-21swapper/207:25:2012
94479914131,93cyclictest0-21swapper/3011:50:0024
93379913923,26cyclictest94-21ksoftirqd/1309:19:055
93379913923,26cyclictest94-21ksoftirqd/1309:19:055
93379913922,73cyclictest0-21swapper/1312:24:135
93889913815,95cyclictest0-21swapper/2109:10:1414
93889913815,95cyclictest0-21swapper/2109:10:1314
94399913712,105cyclictest0-21swapper/2812:00:1321
92759913712,82cyclictest0-21swapper/010:07:300
93379913622,104cyclictest0-21swapper/1312:37:345
93249913428,67cyclictest0-21swapper/1010:23:282
93249913428,67cyclictest0-21swapper/1008:25:152
94479913326,73cyclictest0-21swapper/3009:15:1824
94479913326,73cyclictest0-21swapper/3009:15:1824
94399913312,88cyclictest0-21swapper/2810:10:2121
93249913340,64cyclictest0-21swapper/1008:43:322
93249913340,64cyclictest0-21swapper/1008:43:322
93249913329,73cyclictest0-21swapper/1012:09:122
93249913327,62cyclictest0-21swapper/1011:20:012
9300991333,108cyclictest0-21swapper/407:30:0126
93249913263,63cyclictest0-21swapper/1009:45:262
93249913263,63cyclictest0-21swapper/1009:45:262
93249913232,67cyclictest0-21swapper/1007:30:132
9300991323,91cyclictest0-21swapper/411:55:0126
94479913132,48cyclictest0-21swapper/3012:37:1924
93949913145,58cyclictest0-21swapper/2211:44:4915
93249913133,74cyclictest0-21swapper/1010:28:432
93249913128,68cyclictest0-21swapper/1012:29:302
93249913031,72cyclictest0-21swapper/1009:14:582
93249913031,72cyclictest0-21swapper/1009:14:582
93249913028,67cyclictest0-21swapper/1010:59:432
93249913026,65cyclictest0-21swapper/1012:35:232
9300991303,79cyclictest0-21swapper/411:20:1726
93949912948,54cyclictest0-21swapper/2210:10:1315
93249912930,71cyclictest0-21swapper/1009:35:152
93249912930,71cyclictest0-21swapper/1009:35:152
9324991290,70cyclictest0-21swapper/1011:00:152
9300991293,89cyclictest0-21swapper/410:55:2326
93949912841,57cyclictest0-21swapper/2211:45:5315
93249912834,73cyclictest0-21swapper/1011:43:062
93249912833,76cyclictest0-21swapper/1007:15:162
93249912830,74cyclictest0-21swapper/1011:10:232
93249912829,71cyclictest0-21swapper/1008:45:022
93249912829,71cyclictest0-21swapper/1008:45:012
9324991280,81cyclictest0-21swapper/1009:56:072
9300991283,79cyclictest0-21swapper/409:55:1726
9300991283,72cyclictest0-21swapper/410:43:5526
93249912732,78cyclictest0-21swapper/1010:06:542
93249912732,77cyclictest0-21swapper/1008:14:032
93249912732,75cyclictest0-21swapper/1007:45:122
93249912732,73cyclictest0-21swapper/1012:10:162
93249912731,77cyclictest0-21swapper/1012:16:082
93249912731,75cyclictest0-21swapper/1010:45:492
93249912731,73cyclictest0-21swapper/1010:00:232
93249912730,72cyclictest0-21swapper/1007:25:252
93249912729,72cyclictest0-21swapper/1012:33:472
93949912643,59cyclictest0-21swapper/2210:50:1815
93949912626,61cyclictest0-21swapper/2208:28:4015
93249912632,77cyclictest0-21swapper/1010:30:192
93249912632,75cyclictest0-21swapper/1011:54:462
93249912632,75cyclictest0-21swapper/1011:36:022
93249912631,80cyclictest0-21swapper/1012:20:252
93249912631,74cyclictest0-21swapper/1009:41:082
93249912624,77cyclictest0-21swapper/1011:32:512
93949912534,61cyclictest0-21swapper/2210:41:1315
93949912529,63cyclictest0-21swapper/2209:22:3915
93949912529,63cyclictest0-21swapper/2209:22:3915
93949912528,70cyclictest0-21swapper/2209:01:4815
93949912528,70cyclictest0-21swapper/2209:01:4815
93949912528,64cyclictest0-21swapper/2207:32:3415
93949912527,67cyclictest0-21swapper/2210:32:4015
93949912526,66cyclictest0-21swapper/2209:32:4815
93949912526,66cyclictest0-21swapper/2209:32:4815
93949912526,66cyclictest0-21swapper/2208:58:2115
93949912526,66cyclictest0-21swapper/2208:58:2115
93949912526,65cyclictest0-21swapper/2210:55:3815
93249912531,75cyclictest0-21swapper/1011:25:222
94399912416,69cyclictest0-21swapper/2811:37:4621
93949912445,62cyclictest0-21swapper/2208:54:5115
93949912445,62cyclictest0-21swapper/2208:54:5115
93949912428,66cyclictest0-21swapper/2209:27:5815
93949912428,66cyclictest0-21swapper/2209:27:5815
93949912427,68cyclictest0-21swapper/2211:15:2515
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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