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2026-08-31 - 08:46
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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 Aug 31, 2026 00:49:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
309789929193,1cyclictest151rcu_preempt22:59:0511
3273912680,261ptp4l0-21swapper/119:05:331
295062232225,6sleep180-21swapper/1819:07:2610
309119917229,142cyclictest0-21swapper/700:26:3229
309119917129,91cyclictest0-21swapper/721:14:5429
309119916225,92cyclictest0-21swapper/723:29:5229
310019915751,79cyclictest0-21swapper/2523:20:0118
310019915234,117cyclictest167-21ksoftirqd/2522:50:0518
308869915126,60cyclictest0-21swapper/422:45:1326
30859991503,90cyclictest0-21swapper/021:59:440
30859991503,144cyclictest0-21swapper/021:11:400
30859991503,112cyclictest0-21swapper/023:03:200
294092150143,6sleep270-21swapper/2719:05:5820
309119914924,82cyclictest0-21swapper/722:12:0929
30859991493,122cyclictest0-21swapper/022:19:500
30859991463,113cyclictest0-21swapper/019:56:480
30859991463,113cyclictest0-21swapper/019:56:470
30911991450,85cyclictest0-21swapper/722:56:1329
291072144134,7sleep260-21swapper/2619:05:2519
309989914352,57cyclictest0-21swapper/2422:06:3917
30998991430,87cyclictest0-21swapper/2423:48:4117
30998991430,86cyclictest0-21swapper/2420:40:0117
30998991430,85cyclictest0-21swapper/2421:12:0217
309989914268,44cyclictest0-21swapper/2419:10:1517
309989914268,44cyclictest0-21swapper/2419:10:1517
30998991420,86cyclictest0-21swapper/2400:30:2417
30886991420,82cyclictest0-21swapper/400:10:1426
30998991410,84cyclictest0-21swapper/2400:20:1217
309589914115,121cyclictest151rcu_preempt20:08:006
309589914115,121cyclictest151rcu_preempt20:08:006
310019914022,55cyclictest0-21swapper/2523:00:4718
30998991400,80cyclictest0-21swapper/2400:14:4917
30998991390,85cyclictest0-21swapper/2422:25:1817
30998991390,82cyclictest0-21swapper/2422:50:2417
309989913843,62cyclictest0-21swapper/2422:40:1817
30998991380,83cyclictest0-21swapper/2421:49:2917
309989913748,57cyclictest0-21swapper/2423:55:0417
309989913743,63cyclictest0-21swapper/2419:25:1417
309989913743,63cyclictest0-21swapper/2419:25:1417
30998991360,81cyclictest0-21swapper/2421:40:2417
30998991360,80cyclictest0-21swapper/2421:50:0117
30998991360,79cyclictest0-21swapper/2420:30:2317
308869913652,57cyclictest0-21swapper/421:54:4326
308869913648,58cyclictest0-21swapper/400:34:5726
30859991360,88cyclictest0-21swapper/022:31:520
30998991350,80cyclictest0-21swapper/2421:29:5817
308869913550,56cyclictest0-21swapper/423:44:1426
308869913548,55cyclictest0-21swapper/419:21:0826
308869913548,55cyclictest0-21swapper/419:21:0826
308869913540,62cyclictest0-21swapper/419:46:0726
308869913540,62cyclictest0-21swapper/419:46:0626
308869913537,64cyclictest0-21swapper/420:40:3626
30998991340,84cyclictest0-21swapper/2422:20:0017
30998991340,79cyclictest0-21swapper/2422:20:0117
30998991340,79cyclictest0-21swapper/2422:00:1417
30998991340,79cyclictest0-21swapper/2400:38:2017
30958991341,81cyclictest0-21swapper/1420:03:136
30958991341,81cyclictest0-21swapper/1420:03:126
308869913448,55cyclictest0-21swapper/419:26:3826
308869913448,55cyclictest0-21swapper/419:26:3726
308869913444,54cyclictest0-21swapper/421:40:0926
308869913433,64cyclictest0-21swapper/400:25:4726
308869913431,56cyclictest0-21swapper/400:21:2026
30859991343,107cyclictest0-21swapper/019:13:320
30859991343,107cyclictest0-21swapper/019:13:320
309989913330,67cyclictest0-21swapper/2419:30:0217
309989913330,67cyclictest0-21swapper/2419:30:0117
309989913329,65cyclictest0-21swapper/2422:56:1717
30998991330,83cyclictest0-21swapper/2421:00:2017
308869913334,69cyclictest0-21swapper/421:49:3326
309989913241,56cyclictest0-21swapper/2419:50:2217
309989913241,56cyclictest0-21swapper/2419:50:2217
308869913228,69cyclictest0-21swapper/400:17:4826
309989913130,59cyclictest0-21swapper/2423:15:0117
309989913130,59cyclictest0-21swapper/2400:29:1717
309989913129,64cyclictest0-21swapper/2420:20:1517
309989913129,64cyclictest0-21swapper/2420:20:1417
30998991310,80cyclictest0-21swapper/2423:52:0817
308869913140,69cyclictest0-21swapper/421:00:3426
308869913130,57cyclictest0-21swapper/421:10:3226
308869913129,68cyclictest0-21swapper/422:44:1026
308869913127,72cyclictest0-21swapper/423:33:0926
308869913127,62cyclictest0-21swapper/422:06:1526
308869913126,64cyclictest0-21swapper/419:39:5126
308869913126,64cyclictest0-21swapper/419:39:5026
308699913152,62cyclictest28007-21taskset20:20:2112
308699913152,62cyclictest28007-21taskset20:20:2112
308869913048,53cyclictest0-21swapper/422:13:4426
308869913044,64cyclictest0-21swapper/420:15:3126
308869913044,64cyclictest0-21swapper/420:15:3026
308869913039,61cyclictest0-21swapper/421:37:1626
308869913028,69cyclictest0-21swapper/422:25:1326
308869913027,66cyclictest0-21swapper/419:31:3326
308869913027,66cyclictest0-21swapper/419:31:3226
310019912926,70cyclictest0-21swapper/2520:21:0018
310019912926,70cyclictest0-21swapper/2520:21:0018
309989912928,60cyclictest0-21swapper/2422:48:1717
30998991290,73cyclictest0-21swapper/2421:17:2517
30998991290,73cyclictest0-21swapper/2420:45:2117
308869912953,57cyclictest0-21swapper/423:01:1026
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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