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2026-06-23 - 12:23
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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 Jun 23, 2026 00:49:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1773099331133,1cyclictest151rcu_preempt22:14:2014
175899929194,0cyclictest151rcu_preempt22:45:200
1774699241118,1cyclictest151rcu_preempt00:26:2617
176409923787,20cyclictest58-21ksoftirqd/721:54:5229
3273912320,223ptp4l0-21swapper/119:08:301
176409917521,151cyclictest151rcu_preempt22:10:2229
17613991586,130cyclictest0-21swapper/423:10:3526
17613991586,130cyclictest0-21swapper/423:10:3526
175999915129,91cyclictest0-21swapper/223:12:3112
175999915129,91cyclictest0-21swapper/223:12:3012
17757991430,84cyclictest0-21swapper/2723:30:2020
17757991430,84cyclictest0-21swapper/2723:30:1920
177639914132,68cyclictest0-21swapper/2820:33:1421
177639914131,64cyclictest0-21swapper/2819:55:2521
177639913830,68cyclictest0-21swapper/2823:10:2321
177639913830,68cyclictest0-21swapper/2823:10:2221
17613991386,128cyclictest0-21swapper/421:43:1926
177639913648,53cyclictest0-21swapper/2823:05:0221
177639913648,53cyclictest0-21swapper/2823:05:0221
177639913528,65cyclictest0-21swapper/2823:55:1521
177639913528,65cyclictest0-21swapper/2823:55:1421
1773099135134,1cyclictest151rcu_preempt23:03:3114
1773099135134,1cyclictest151rcu_preempt23:03:3114
177639913435,64cyclictest0-21swapper/2821:08:4621
177639913432,65cyclictest0-21swapper/2820:35:5521
177639913430,66cyclictest0-21swapper/2800:15:0221
177639913429,66cyclictest0-21swapper/2823:16:4721
177639913429,66cyclictest0-21swapper/2823:16:4721
177639913429,61cyclictest0-21swapper/2822:15:2021
17613991346,111cyclictest0-21swapper/421:52:3826
175999913424,109cyclictest0-21swapper/200:15:5212
177639913330,65cyclictest0-21swapper/2822:00:2221
177639913330,65cyclictest0-21swapper/2822:00:2121
17613991336,126cyclictest0-21swapper/423:20:1826
17613991336,126cyclictest0-21swapper/423:20:1826
17613991336,117cyclictest0-21swapper/419:55:0126
17613991336,109cyclictest0-21swapper/419:10:0226
175999913346,61cyclictest0-21swapper/221:25:3912
177639913231,63cyclictest0-21swapper/2822:44:4321
177309913223,41cyclictest0-21swapper/2120:50:2614
17613991326,95cyclictest0-21swapper/423:47:5526
17613991326,84cyclictest0-21swapper/422:05:2426
17613991326,81cyclictest0-21swapper/400:18:3826
17613991326,125cyclictest0-21swapper/422:28:1726
17613991326,125cyclictest0-21swapper/422:20:1626
17613991326,103cyclictest0-21swapper/423:16:2326
17613991326,103cyclictest0-21swapper/423:16:2326
177639913126,66cyclictest0-21swapper/2823:20:3021
177639913126,66cyclictest0-21swapper/2823:20:2921
176509913125,62cyclictest0-21swapper/922:39:4831
17613991316,116cyclictest0-21swapper/423:40:3226
17613991316,116cyclictest0-21swapper/423:40:3226
177639913029,62cyclictest0-21swapper/2820:10:1621
177639913029,61cyclictest0-21swapper/2822:47:2421
177639913022,62cyclictest0-21swapper/2822:55:2221
177579913028,69cyclictest0-21swapper/2700:35:0020
177579913028,68cyclictest0-21swapper/2700:25:2320
177309913023,88cyclictest0-21swapper/2100:31:4214
177189913024,64cyclictest0-21swapper/1919:15:1711
176509913027,61cyclictest0-21swapper/921:50:3631
175999913043,57cyclictest0-21swapper/219:32:3812
330891129121,6phc2sys0-21swapper/219:05:1412
177639912928,63cyclictest0-21swapper/2820:24:5321
177639912927,66cyclictest0-21swapper/2823:04:5921
177639912927,66cyclictest0-21swapper/2823:04:5821
177639912927,59cyclictest0-21swapper/2820:45:1421
177579912930,68cyclictest0-21swapper/2722:19:4620
177579912928,66cyclictest0-21swapper/2700:10:5720
177309912923,83cyclictest0-21swapper/2121:24:3814
177309912923,105cyclictest0-21swapper/2122:59:1414
176509912947,55cyclictest0-21swapper/923:52:2931
176509912941,60cyclictest0-21swapper/921:16:2531
17613991296,111cyclictest0-21swapper/422:54:1226
17613991296,111cyclictest0-21swapper/422:54:1126
177639912824,59cyclictest0-21swapper/2821:20:1821
17763991280,73cyclictest0-21swapper/2820:25:1421
177579912828,67cyclictest0-21swapper/2719:30:2320
177579912827,66cyclictest0-21swapper/2721:31:0920
177579912826,69cyclictest0-21swapper/2700:00:4820
177579912826,69cyclictest0-21swapper/2700:00:4820
177309912823,71cyclictest0-21swapper/2122:23:5314
176509912850,62cyclictest0-21swapper/919:25:2331
176509912827,66cyclictest0-21swapper/900:13:5231
176509912825,61cyclictest0-21swapper/921:59:1031
17613991286,118cyclictest0-21swapper/419:24:5926
175999912846,53cyclictest0-21swapper/220:03:0612
175999912825,63cyclictest0-21swapper/222:35:2412
177579912728,65cyclictest0-21swapper/2723:59:2820
177579912728,65cyclictest0-21swapper/2723:59:2820
177579912726,64cyclictest0-21swapper/2719:20:1320
177309912719,26cyclictest0-21swapper/2123:24:1714
177309912719,26cyclictest0-21swapper/2123:24:1714
176509912753,59cyclictest0-21swapper/923:31:0631
176509912753,59cyclictest0-21swapper/923:31:0631
176509912739,65cyclictest0-21swapper/920:47:4131
176509912727,68cyclictest0-21swapper/920:23:3831
176509912727,67cyclictest0-21swapper/921:30:5131
176509912724,62cyclictest0-21swapper/900:33:4631
176319912748,56cyclictest0-21swapper/600:32:3028
17613991276,94cyclictest0-21swapper/421:03:1026
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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