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2026-06-08 - 19:25
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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 Jun 08, 2026 12:49:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912290,221ptp4l0-21swapper/107:07:581
62899918829,84cyclictest0-21swapper/2908:05:0122
62539917630,110cyclictest0-21swapper/2509:21:0518
62539917630,110cyclictest0-21swapper/2509:21:0418
62539917628,114cyclictest0-21swapper/2510:03:4918
62539917528,107cyclictest0-21swapper/2510:37:2918
62539917431,105cyclictest0-21swapper/2509:46:1118
62539917329,90cyclictest0-21swapper/2509:35:1518
62539917128,91cyclictest0-21swapper/2509:42:2718
62539917128,91cyclictest0-21swapper/2509:42:2618
62539916927,92cyclictest0-21swapper/2512:00:2118
62539916829,88cyclictest0-21swapper/2509:27:2818
330891162153,6phc2sys0-21swapper/207:05:1812
62539915531,69cyclictest0-21swapper/2511:55:3218
61289915515,106cyclictest0-21swapper/312:05:1923
62249915330,114cyclictest0-21swapper/2110:04:4514
61289915215,82cyclictest0-21swapper/312:18:0923
62539914922,88cyclictest0-21swapper/2511:35:3718
61289914915,89cyclictest0-21swapper/309:43:0923
61289914915,89cyclictest0-21swapper/309:43:0823
61289914616,32cyclictest0-21swapper/310:33:2423
61289914215,83cyclictest0-21swapper/308:05:2223
6124991415,99cyclictest0-21swapper/211:21:1112
6124991415,134cyclictest0-21swapper/210:14:3812
6188991400,84cyclictest0-21swapper/1607:50:218
61769914019,77cyclictest0-21swapper/1510:59:147
61619914049,43cyclictest0-21swapper/1109:35:483
6124991405,102cyclictest0-21swapper/210:48:2012
6124991405,101cyclictest0-21swapper/211:45:3112
61769913719,70cyclictest0-21swapper/1510:50:427
6164991370,84cyclictest0-21swapper/1211:20:224
6124991375,96cyclictest0-21swapper/208:44:0312
6124991375,96cyclictest0-21swapper/208:44:0212
62249913626,73cyclictest0-21swapper/2110:44:5414
6188991368,71cyclictest0-21swapper/1612:19:598
61889913612,120cyclictest151rcu_preempt11:23:218
61769913624,77cyclictest0-21swapper/1511:34:327
6124991365,92cyclictest0-21swapper/211:17:1212
62539913548,58cyclictest0-21swapper/2510:56:1218
6224991350,87cyclictest0-21swapper/2111:52:1514
61889913517,114cyclictest151rcu_preempt10:26:308
6124991355,79cyclictest0-21swapper/209:59:1112
6124991355,104cyclictest0-21swapper/208:09:5012
61889913418,112cyclictest151rcu_preempt10:38:178
61889913410,117cyclictest151rcu_preempt11:54:158
61289913415,80cyclictest29508-21diskmemload10:59:1923
61769913347,53cyclictest0-21swapper/1512:08:427
62539913251,55cyclictest0-21swapper/2510:23:0618
6188991320,74cyclictest0-21swapper/1611:25:168
61889913111,116cyclictest151rcu_preempt09:35:588
61769913150,58cyclictest0-21swapper/1511:14:137
61769913143,58cyclictest0-21swapper/1512:17:167
62539913048,54cyclictest0-21swapper/2509:50:2818
62249913031,65cyclictest0-21swapper/2112:07:4114
61769913050,55cyclictest0-21swapper/1511:09:567
62539912944,64cyclictest0-21swapper/2510:34:4918
62539912943,59cyclictest0-21swapper/2511:16:3018
6224991290,78cyclictest143-21ksoftirqd/2107:20:0114
61889912926,100cyclictest151rcu_preempt11:59:278
61769912949,55cyclictest0-21swapper/1508:26:237
61769912949,55cyclictest0-21swapper/1508:26:227
61769912926,70cyclictest0-21swapper/1508:57:437
61769912926,70cyclictest0-21swapper/1508:57:427
61769912925,64cyclictest0-21swapper/1511:53:127
62539912846,57cyclictest0-21swapper/2509:30:1018
62539912846,57cyclictest0-21swapper/2509:30:0918
62539912846,52cyclictest0-21swapper/2509:16:1918
62539912846,52cyclictest0-21swapper/2509:16:1918
62539912841,59cyclictest0-21swapper/2508:35:0218
62539912841,59cyclictest0-21swapper/2508:35:0118
61889912815,106cyclictest151rcu_preempt11:07:388
61889912813,77cyclictest151rcu_preempt11:49:538
61769912825,63cyclictest0-21swapper/1511:24:217
61619912828,65cyclictest0-21swapper/1110:38:023
62539912751,57cyclictest0-21swapper/2510:46:3518
62539912733,69cyclictest0-21swapper/2511:52:1918
62539912730,65cyclictest0-21swapper/2511:00:2818
62539912728,67cyclictest0-21swapper/2510:16:3918
62539912727,65cyclictest0-21swapper/2509:05:0318
62539912727,65cyclictest0-21swapper/2509:05:0218
62539912726,67cyclictest0-21swapper/2510:42:1818
62249912753,68cyclictest0-21swapper/2110:46:5814
6224991271,78cyclictest0-21swapper/2112:33:2414
6188991270,86cyclictest0-21swapper/1610:41:268
61769912746,51cyclictest0-21swapper/1511:15:497
61769912728,65cyclictest0-21swapper/1510:16:297
61769912728,65cyclictest0-21swapper/1508:47:477
61769912728,65cyclictest0-21swapper/1508:47:467
61769912727,65cyclictest0-21swapper/1508:40:187
61769912727,65cyclictest0-21swapper/1508:40:177
61769912727,65cyclictest0-21swapper/1507:22:487
61769912727,64cyclictest0-21swapper/1510:35:117
61769912726,67cyclictest0-21swapper/1509:20:227
61769912726,67cyclictest0-21swapper/1509:20:217
6124991270,88cyclictest0-21swapper/209:13:5912
6124991270,88cyclictest0-21swapper/209:13:5812
62539912627,65cyclictest0-21swapper/2509:55:1718
62539912625,63cyclictest0-21swapper/2510:30:0018
62249912638,69cyclictest0-21swapper/2111:36:3214
62249912634,91cyclictest0-21swapper/2107:22:1714
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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