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2025-12-06 - 00:04
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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 Fri Dec 05, 2025 12:49:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
162899361161,196cyclictest151rcu_preempt10:18:4615
16289930721,88cyclictest151rcu_preempt10:05:2415
16419924246,33cyclictest151rcu_preempt09:25:4117
2482912400,232ptp4l0-21swapper/107:08:121
162899169161,5cyclictest151rcu_preempt09:21:0215
16529916658,57cyclictest151rcu_preempt12:00:2320
14839916324,82cyclictest0-21swapper/211:10:1612
14839916324,82cyclictest0-21swapper/211:10:1612
1628991624,152cyclictest0-21swapper/2211:20:1315
1628991624,152cyclictest0-21swapper/2211:20:1315
14909915169,81cyclictest40-21ksoftirqd/410:41:1526
14909915169,81cyclictest40-21ksoftirqd/410:41:1526
16289914338,101cyclictest151rcu_preempt09:19:5815
14909914234,108cyclictest40-21ksoftirqd/409:15:1226
1570991346,119cyclictest0-21swapper/1311:37:425
1570991336,108cyclictest0-21swapper/1309:15:205
1490991335,74cyclictest0-21swapper/412:07:3126
1570991326,125cyclictest0-21swapper/1312:00:095
1570991326,109cyclictest16455-21taskset12:10:015
15779913150,59cyclictest0-21swapper/1511:02:597
15779913150,59cyclictest0-21swapper/1511:02:597
1570991316,83cyclictest0-21swapper/1309:21:575
1570991316,82cyclictest0-21swapper/1309:46:015
1570991316,82cyclictest0-21swapper/1309:46:015
1570991316,81cyclictest0-21swapper/1308:55:155
1570991316,77cyclictest0-21swapper/1312:28:295
14909913142,60cyclictest0-21swapper/410:25:1326
1570991306,79cyclictest0-21swapper/1310:00:265
1570991306,74cyclictest0-21swapper/1311:05:245
1570991306,74cyclictest0-21swapper/1311:05:245
1619991292,126cyclictest0-21swapper/2109:15:4114
1619991292,116cyclictest0-21swapper/2112:39:0214
15779912949,50cyclictest0-21swapper/1510:27:447
14909912919,65cyclictest0-21swapper/409:37:1926
16289912846,68cyclictest0-21swapper/2212:16:2015
1619991282,81cyclictest0-21swapper/2109:28:3014
15779912827,66cyclictest0-21swapper/1509:28:567
15779912826,61cyclictest0-21swapper/1512:36:007
1574991280,79cyclictest0-21swapper/1412:01:296
14909912844,53cyclictest0-21swapper/411:25:0526
14909912844,53cyclictest0-21swapper/411:25:0526
1490991280,78cyclictest0-21swapper/409:40:1926
1619991272,81cyclictest0-21swapper/2111:15:5614
1619991272,81cyclictest0-21swapper/2111:15:5614
1619991272,80cyclictest0-21swapper/2112:06:4214
1619991272,78cyclictest0-21swapper/2109:38:0814
1619991272,111cyclictest0-21swapper/2110:25:0914
14909912747,51cyclictest0-21swapper/409:56:2926
14909912744,57cyclictest0-21swapper/410:03:2526
14909912744,52cyclictest0-21swapper/412:10:3126
1619991262,82cyclictest0-21swapper/2109:46:0914
1619991262,82cyclictest0-21swapper/2109:46:0914
1619991262,106cyclictest0-21swapper/2110:39:0314
1619991262,106cyclictest0-21swapper/2110:39:0314
15779912627,66cyclictest0-21swapper/1511:37:277
15779912627,64cyclictest0-21swapper/1510:38:577
15779912627,64cyclictest0-21swapper/1510:38:577
15779912626,66cyclictest0-21swapper/1509:39:067
15779912626,62cyclictest0-21swapper/1507:25:317
15779912617,62cyclictest0-21swapper/1510:48:027
15779912617,62cyclictest0-21swapper/1510:48:027
1577991260,75cyclictest0-21swapper/1508:20:017
14909912640,60cyclictest0-21swapper/410:10:4426
14909912640,60cyclictest0-21swapper/410:10:4426
14909912639,57cyclictest0-21swapper/409:30:1626
1490991260,74cyclictest0-21swapper/409:09:5926
1619991252,77cyclictest0-21swapper/2110:00:3414
16049912531,93cyclictest0-21swapper/1908:10:2511
15779912530,73cyclictest0-21swapper/1507:44:137
15779912530,65cyclictest0-21swapper/1507:18:027
15779912529,66cyclictest0-21swapper/1511:20:377
15779912529,66cyclictest0-21swapper/1511:20:377
15779912528,67cyclictest0-21swapper/1507:10:177
15779912527,64cyclictest0-21swapper/1509:43:227
15779912526,66cyclictest0-21swapper/1509:50:517
15779912526,65cyclictest0-21swapper/1511:45:457
15779912526,65cyclictest0-21swapper/1511:45:457
15779912526,65cyclictest0-21swapper/1509:13:257
15779912525,67cyclictest0-21swapper/1509:31:057
16379912421,64cyclictest151rcu_preempt11:20:1416
16379912421,64cyclictest151rcu_preempt11:20:1416
1619991242,121cyclictest0-21swapper/2107:21:4814
15779912430,69cyclictest0-21swapper/1508:44:367
15779912428,69cyclictest0-21swapper/1511:56:597
15779912428,68cyclictest0-21swapper/1510:18:397
15779912428,63cyclictest0-21swapper/1512:08:437
1524991240,76cyclictest0-21swapper/810:29:3030
14909912428,65cyclictest0-21swapper/412:19:3526
14909912427,63cyclictest0-21swapper/411:14:2226
14909912427,63cyclictest0-21swapper/411:14:2126
14909912426,65cyclictest0-21swapper/407:13:3726
14739912430,42cyclictest20777-21taskset07:38:540
1619991230,69cyclictest0-21swapper/2112:33:5714
16049912342,64cyclictest0-21swapper/1912:00:1511
15779912330,70cyclictest0-21swapper/1512:19:267
15779912329,70cyclictest0-21swapper/1511:30:157
15779912329,70cyclictest0-21swapper/1511:30:157
15779912328,68cyclictest0-21swapper/1507:59:127
15779912328,67cyclictest0-21swapper/1508:38:447
15779912327,67cyclictest0-21swapper/1511:06:457
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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