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2026-06-28 - 21:46
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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 Sun Jun 28, 2026 12:49:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913220,314ptp4l0-21swapper/107:08:421
256069924257,2cyclictest151rcu_preempt10:54:0828
257539922526,124cyclictest0-21swapper/2610:05:1819
241522170165,4sleep290-21swapper/2907:06:3722
257459916334,128cyclictest0-21swapper/2510:51:1518
257459916231,98cyclictest0-21swapper/2511:50:0318
257459916031,109cyclictest0-21swapper/2509:47:3818
257459916030,89cyclictest0-21swapper/2511:30:4918
257459915830,117cyclictest0-21swapper/2510:27:4318
255869915828,59cyclictest151rcu_preempt09:55:1723
257459915224,85cyclictest0-21swapper/2509:56:1218
257539914519,24cyclictest0-21swapper/2612:10:5719
256799914518,98cyclictest0-21swapper/1611:26:428
256729914413,77cyclictest0-21swapper/1509:53:227
257459914330,72cyclictest0-21swapper/2512:34:0918
257269914324,118cyclictest0-21swapper/2212:31:4115
257269914224,96cyclictest0-21swapper/2211:35:0215
25687991420,84cyclictest0-21swapper/1711:30:029
257269914124,75cyclictest0-21swapper/2209:50:1515
257269914124,60cyclictest0-21swapper/2212:25:0215
257269914124,103cyclictest0-21swapper/2211:14:1115
25576991410,87cyclictest0-21swapper/210:18:4812
257539914016,95cyclictest0-21swapper/2610:29:5319
257269914024,72cyclictest0-21swapper/2209:27:4915
257269914024,115cyclictest0-21swapper/2208:00:1115
257269914024,115cyclictest0-21swapper/2208:00:1115
257269913823,95cyclictest0-21swapper/2210:00:2615
256879913723,88cyclictest0-21swapper/1711:59:179
256799913733,81cyclictest5186-21expr12:20:118
256799913722,22cyclictest0-21swapper/1610:56:178
25672991350,87cyclictest0-21swapper/1510:25:267
255769913550,54cyclictest0-21swapper/207:55:0212
255769913550,54cyclictest0-21swapper/207:55:0112
256799913422,111cyclictest0-21swapper/1610:35:248
256529913421,23cyclictest0-21swapper/1211:33:034
25652991340,83cyclictest0-21swapper/1209:46:084
257539913226,67cyclictest0-21swapper/2612:39:1419
25745991320,81cyclictest0-21swapper/2511:47:5518
256879913265,52cyclictest0-21swapper/1711:24:489
256879913227,65cyclictest0-21swapper/1707:21:389
256879913227,65cyclictest0-21swapper/1707:21:379
256799913246,55cyclictest0-21swapper/1610:45:388
256799913226,63cyclictest0-21swapper/1612:16:248
257539913126,104cyclictest0-21swapper/2609:50:2019
256879913126,64cyclictest0-21swapper/1708:23:369
256799913136,59cyclictest0-21swapper/1612:27:278
330891130121,7phc2sys0-21swapper/207:05:3312
25745991300,82cyclictest0-21swapper/2507:15:2018
25745991300,82cyclictest0-21swapper/2507:15:2018
256879913027,68cyclictest0-21swapper/1711:25:109
256799913050,55cyclictest0-21swapper/1608:30:218
256799913045,55cyclictest0-21swapper/1611:45:268
256799913042,63cyclictest0-21swapper/1611:31:368
256799913029,63cyclictest0-21swapper/1609:53:598
25679991301,80cyclictest0-21swapper/1609:05:158
256529913047,54cyclictest0-21swapper/1212:21:584
255769913022,68cyclictest0-21swapper/212:11:0312
256879912943,61cyclictest0-21swapper/1710:30:499
256799912949,58cyclictest0-21swapper/1612:06:498
256799912946,57cyclictest0-21swapper/1608:15:258
256799912946,55cyclictest0-21swapper/1610:27:088
256799912945,53cyclictest0-21swapper/1609:28:358
256799912944,62cyclictest0-21swapper/1610:51:268
256799912943,56cyclictest0-21swapper/1610:09:498
256799912927,65cyclictest0-21swapper/1609:15:348
255769912928,66cyclictest0-21swapper/210:39:5612
256879912870,57cyclictest0-21swapper/1710:08:549
256879912849,62cyclictest0-21swapper/1710:01:259
256879912842,63cyclictest0-21swapper/1710:19:239
256879912841,56cyclictest0-21swapper/1712:25:449
256879912838,59cyclictest0-21swapper/1712:35:539
256879912834,61cyclictest0-21swapper/1709:22:569
256879912829,75cyclictest0-21swapper/1711:14:269
256879912829,69cyclictest0-21swapper/1709:14:469
256879912828,67cyclictest0-21swapper/1711:39:139
256879912828,67cyclictest0-21swapper/1707:35:199
256879912828,67cyclictest0-21swapper/1707:35:199
256879912826,66cyclictest0-21swapper/1709:48:359
256879912825,68cyclictest0-21swapper/1707:42:289
256879912825,68cyclictest0-21swapper/1707:42:289
256799912853,60cyclictest0-21swapper/1611:58:478
256799912839,59cyclictest0-21swapper/1612:30:348
256799912835,63cyclictest0-21swapper/1610:15:088
256799912828,70cyclictest0-21swapper/1611:35:308
256799912827,68cyclictest0-21swapper/1608:05:218
256799912827,64cyclictest0-21swapper/1612:02:288
256799912827,63cyclictest0-21swapper/1610:00:098
256799912826,66cyclictest0-21swapper/1607:15:128
256799912826,66cyclictest0-21swapper/1607:15:128
256529912841,57cyclictest0-21swapper/1207:29:214
256529912841,57cyclictest0-21swapper/1207:29:204
256529912829,71cyclictest0-21swapper/1210:39:044
256529912826,67cyclictest0-21swapper/1212:35:044
256529912826,62cyclictest0-21swapper/1211:20:134
256529912825,61cyclictest0-21swapper/1209:55:154
256529912820,95cyclictest20016-21runrttasks09:31:144
255769912827,62cyclictest0-21swapper/207:35:0212
255769912827,62cyclictest0-21swapper/207:35:0112
256879912736,56cyclictest0-21swapper/1711:18:079
256879912730,69cyclictest0-21swapper/1708:13:279
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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