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2026-05-26 - 06:23
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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 May 26, 2026 00:49:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912310,223ptp4l0-21swapper/119:09:551
330891205197,6phc2sys0-21swapper/219:09:2212
25625991951,193cyclictest94-21ksoftirqd/1321:18:405
25678991570,116cyclictest25887-21latency_hist19:10:0118
256449915217,103cyclictest0-21swapper/1722:45:189
255979914829,67cyclictest0-21swapper/720:25:2029
256789914433,71cyclictest0-21swapper/2520:05:3618
256789914433,71cyclictest0-21swapper/2520:05:3518
256789914331,72cyclictest0-21swapper/2500:04:1418
256789914229,80cyclictest0-21swapper/2523:03:1818
25625991420,85cyclictest0-21swapper/1300:25:255
25625991410,84cyclictest0-21swapper/1322:44:075
256649914039,43cyclictest151rcu_preempt23:20:4815
25625991400,83cyclictest0-21swapper/1322:55:375
25625991400,83cyclictest0-21swapper/1321:50:245
25625991390,83cyclictest0-21swapper/1323:45:205
256789913831,69cyclictest0-21swapper/2523:53:3318
256259913751,56cyclictest0-21swapper/1300:00:185
256259913727,66cyclictest0-21swapper/1323:18:045
256259913726,72cyclictest0-21swapper/1322:00:185
25625991370,77cyclictest0-21swapper/1300:10:265
256789913628,64cyclictest0-21swapper/2522:35:1718
256789913625,75cyclictest0-21swapper/2500:29:2118
256259913632,70cyclictest0-21swapper/1323:21:165
25625991360,79cyclictest0-21swapper/1322:45:285
256789913549,57cyclictest0-21swapper/2523:31:0518
256789913525,66cyclictest0-21swapper/2522:10:2418
256259913547,59cyclictest0-21swapper/1300:38:315
256259913529,65cyclictest0-21swapper/1319:25:365
256259913529,65cyclictest0-21swapper/1319:25:355
256259913528,65cyclictest0-21swapper/1322:32:065
256259913524,68cyclictest0-21swapper/1323:00:575
25625991350,77cyclictest0-21swapper/1321:10:225
256789913432,68cyclictest0-21swapper/2520:45:0918
256789913428,70cyclictest0-21swapper/2522:28:0118
256259913449,70cyclictest0-21swapper/1323:39:585
256259913427,67cyclictest0-21swapper/1322:37:585
256789913351,57cyclictest0-21swapper/2523:46:3618
256789913333,66cyclictest0-21swapper/2523:05:1318
256789913330,68cyclictest0-21swapper/2522:50:2818
256259913328,67cyclictest0-21swapper/1319:36:015
256259913328,67cyclictest0-21swapper/1319:36:005
25625991330,79cyclictest0-21swapper/1322:52:245
256129913333,93cyclictest151rcu_preempt22:35:162
256789913230,72cyclictest0-21swapper/2522:47:3818
256789913227,74cyclictest0-21swapper/2520:55:1718
256259913229,63cyclictest0-21swapper/1321:21:325
25625991320,77cyclictest0-21swapper/1320:40:245
256789913130,74cyclictest0-21swapper/2523:11:1818
256789913128,67cyclictest0-21swapper/2500:19:1118
256789913127,69cyclictest0-21swapper/2522:31:4618
256789913127,67cyclictest0-21swapper/2522:57:5818
256789913126,70cyclictest0-21swapper/2520:11:1318
256789913126,70cyclictest0-21swapper/2520:11:1218
256789913125,67cyclictest0-21swapper/2523:16:3118
256259913161,69cyclictest0-21swapper/1320:14:455
256259913161,69cyclictest0-21swapper/1320:14:445
256259913130,70cyclictest0-21swapper/1320:50:345
256259913125,63cyclictest0-21swapper/1322:08:025
25625991310,76cyclictest0-21swapper/1323:52:495
256789913030,67cyclictest0-21swapper/2521:59:4218
256789913029,69cyclictest0-21swapper/2521:52:1318
256789913029,69cyclictest0-21swapper/2521:28:0918
256789913029,65cyclictest0-21swapper/2522:03:5918
256789913028,66cyclictest0-21swapper/2521:49:3318
256789913028,64cyclictest0-21swapper/2519:27:2418
256789913028,64cyclictest0-21swapper/2519:27:2318
256789913027,66cyclictest0-21swapper/2520:40:2018
256789913026,69cyclictest0-21swapper/2520:35:1518
256789913026,68cyclictest0-21swapper/2519:15:0718
256789913026,68cyclictest0-21swapper/2519:15:0618
256789913024,69cyclictest0-21swapper/2520:30:2718
256259913030,71cyclictest0-21swapper/1321:07:065
256259913023,62cyclictest0-21swapper/1321:02:185
25625991300,76cyclictest0-21swapper/1319:10:065
25625991300,76cyclictest0-21swapper/1319:10:055
256789912930,73cyclictest0-21swapper/2522:24:1718
256789912930,69cyclictest0-21swapper/2519:35:1918
256789912930,69cyclictest0-21swapper/2519:35:1818
256789912928,69cyclictest0-21swapper/2521:11:3618
256789912928,60cyclictest0-21swapper/2520:21:2118
256789912926,68cyclictest0-21swapper/2523:27:5418
256789912926,68cyclictest0-21swapper/2521:22:1718
256789912926,66cyclictest0-21swapper/2522:44:0318
256789912926,64cyclictest0-21swapper/2522:07:2618
25641991290,74cyclictest0-21swapper/1622:35:108
256259912928,62cyclictest0-21swapper/1321:40:475
25625991290,74cyclictest0-21swapper/1322:24:055
256789912828,68cyclictest0-21swapper/2500:21:2018
256789912828,65cyclictest0-21swapper/2519:24:4318
256789912828,65cyclictest0-21swapper/2519:24:4318
256789912827,66cyclictest0-21swapper/2521:44:4318
256259912831,69cyclictest0-21swapper/1323:41:035
256259912829,64cyclictest0-21swapper/1321:56:175
25625991280,72cyclictest0-21swapper/1322:15:325
256789912728,63cyclictest0-21swapper/2522:18:2418
256259912728,63cyclictest0-21swapper/1322:29:575
25625991272,75cyclictest0-21swapper/1300:34:295
25597991270,77cyclictest0-21swapper/722:37:1929
256789912655,66cyclictest0-21swapper/2521:36:1118
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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