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2026-05-11 - 03:05
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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 May 10, 2026 12:48:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913190,308ptp4l0-21swapper/107:05:161
91579927477,1cyclictest151rcu_preempt10:30:0627
330891212204,6phc2sys0-21swapper/207:05:0812
924599189187,1cyclictest151rcu_preempt11:41:5717
9199991757,158cyclictest0-21swapper/1610:23:208
9199991747,139cyclictest0-21swapper/1611:10:118
9199991716,118cyclictest0-21swapper/1610:11:358
9199991676,114cyclictest0-21swapper/1611:51:208
9199991626,106cyclictest0-21swapper/1612:33:348
92059916030,95cyclictest0-21swapper/1710:05:439
9199991597,120cyclictest0-21swapper/1608:45:218
9199991586,107cyclictest0-21swapper/1608:15:258
9199991577,149cyclictest0-21swapper/1612:06:188
9210991564,113cyclictest0-21swapper/1811:31:1610
9199991567,102cyclictest0-21swapper/1611:27:168
9199991556,108cyclictest0-21swapper/1612:00:068
92059915328,85cyclictest0-21swapper/1711:10:559
91649915248,52cyclictest0-21swapper/711:21:2729
92059915034,73cyclictest0-21swapper/1709:42:289
9210991474,84cyclictest0-21swapper/1807:30:1410
9210991474,84cyclictest0-21swapper/1807:30:1410
9199991466,99cyclictest0-21swapper/1610:25:288
91869914617,95cyclictest151rcu_preempt08:44:265
92459914518,47cyclictest0-21swapper/2409:11:0917
92059914515,111cyclictest12173-21taskset12:14:479
9205991440,84cyclictest0-21swapper/1708:40:139
92459914223,118cyclictest0-21swapper/2410:14:4517
9199991426,93cyclictest0-21swapper/1611:49:448
92059914018,42cyclictest0-21swapper/1709:53:269
9199991397,94cyclictest0-21swapper/1611:00:028
91609913915,114cyclictest0-21swapper/611:15:0128
91609913915,100cyclictest0-21swapper/609:52:0128
9210991384,103cyclictest0-21swapper/1810:34:3610
91919913827,67cyclictest0-21swapper/1409:22:226
91919913827,110cyclictest0-21swapper/1412:10:136
91869913814,82cyclictest0-21swapper/1308:55:095
91609913815,92cyclictest0-21swapper/611:00:0328
91919913726,81cyclictest0-21swapper/1409:52:186
92459913551,57cyclictest0-21swapper/2410:40:2217
91489913574,58cyclictest0-21swapper/311:51:1823
92459913443,59cyclictest0-21swapper/2407:10:0517
92459913443,59cyclictest0-21swapper/2407:10:0417
91999913430,66cyclictest0-21swapper/1610:52:488
91999913422,109cyclictest0-21swapper/1611:39:348
91919913422,111cyclictest0-21swapper/1410:21:276
92459913323,70cyclictest0-21swapper/2410:18:2717
9199991337,94cyclictest0-21swapper/1612:37:488
92459913247,56cyclictest0-21swapper/2410:09:2617
92459913239,66cyclictest0-21swapper/2409:45:0117
9210991324,79cyclictest0-21swapper/1811:27:2910
9186991320,87cyclictest0-21swapper/1310:44:415
92459913150,54cyclictest0-21swapper/2411:25:1617
92059913141,67cyclictest0-21swapper/1712:38:209
91839913179,1cyclictest151rcu_preempt10:26:334
92459913049,58cyclictest0-21swapper/2412:15:0017
92459913041,60cyclictest0-21swapper/2407:33:2017
92459913041,60cyclictest0-21swapper/2407:33:2017
92459913030,68cyclictest0-21swapper/2411:38:3517
92459913029,68cyclictest0-21swapper/2409:30:2117
92459913028,69cyclictest0-21swapper/2412:34:1017
92459913027,62cyclictest0-21swapper/2409:28:4417
92459913026,64cyclictest0-21swapper/2409:50:4517
92459913026,64cyclictest0-21swapper/2407:59:3617
92459913026,64cyclictest0-21swapper/2407:59:3517
92059913031,45cyclictest0-21swapper/1711:05:029
9199991307,88cyclictest0-21swapper/1612:13:588
9199991307,87cyclictest0-21swapper/1612:20:428
9199991307,85cyclictest0-21swapper/1609:14:418
91609913015,87cyclictest0-21swapper/612:35:1228
92509912952,56cyclictest0-21swapper/2510:55:2018
92459912945,53cyclictest0-21swapper/2411:11:3617
92459912929,71cyclictest0-21swapper/2409:55:1417
92459912929,68cyclictest0-21swapper/2411:48:1617
92459912928,70cyclictest0-21swapper/2411:05:1217
92459912928,69cyclictest0-21swapper/2411:30:0517
92459912926,70cyclictest0-21swapper/2412:15:1217
92459912926,63cyclictest0-21swapper/2410:00:1717
91999912942,56cyclictest0-21swapper/1610:38:118
91919912917,105cyclictest0-21swapper/1407:15:136
91919912917,105cyclictest0-21swapper/1407:15:136
91539912980,6cyclictest151rcu_preempt11:25:2926
92509912845,58cyclictest0-21swapper/2509:35:5618
92459912854,66cyclictest0-21swapper/2410:20:4017
92459912837,57cyclictest0-21swapper/2407:43:3417
92459912837,57cyclictest0-21swapper/2407:43:3317
92459912829,73cyclictest0-21swapper/2409:24:0117
92459912828,66cyclictest0-21swapper/2410:56:2817
92459912827,64cyclictest0-21swapper/2410:51:0617
92459912826,68cyclictest0-21swapper/2412:06:5417
92459912824,61cyclictest0-21swapper/2411:22:0317
91999912847,53cyclictest0-21swapper/1612:17:148
92509912744,54cyclictest0-21swapper/2511:42:3518
92509912743,54cyclictest0-21swapper/2511:55:2518
92509912727,62cyclictest0-21swapper/2508:32:1118
92459912728,69cyclictest0-21swapper/2409:15:2417
92459912728,68cyclictest0-21swapper/2411:17:1917
92459912724,60cyclictest0-21swapper/2412:25:4117
92059912718,80cyclictest0-21swapper/1709:13:019
9199991277,87cyclictest0-21swapper/1611:02:408
91999912747,58cyclictest0-21swapper/1607:54:018
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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