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2026-06-30 - 21:11
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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 Jun 30, 2026 12:49:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1304899336138,1cyclictest151rcu_preempt10:32:2626
130739929498,11cyclictest151rcu_preempt09:35:3030
130739929498,11cyclictest151rcu_preempt09:35:3030
131569926365,1cyclictest151rcu_preempt11:23:4413
3273912170,208ptp4l0-21swapper/107:06:251
130329917111,93cyclictest0-21swapper/207:15:0112
131569916563,3cyclictest151rcu_preempt09:11:3513
131569916563,3cyclictest151rcu_preempt09:11:3513
1309199152137,14cyclictest16722-21switchtime09:15:233
1309199152137,14cyclictest16722-21switchtime09:15:233
13091991451,83cyclictest0-21swapper/1111:35:583
13091991410,85cyclictest0-21swapper/1111:25:493
13091991400,83cyclictest0-21swapper/1111:57:203
13091991400,80cyclictest0-21swapper/1108:28:223
13048991406,130cyclictest0-21swapper/412:03:2426
13091991390,82cyclictest0-21swapper/1109:10:213
13091991390,82cyclictest0-21swapper/1109:10:213
132339913748,52cyclictest0-21swapper/3110:30:0025
13091991370,79cyclictest0-21swapper/1108:44:413
13091991370,79cyclictest0-21swapper/1108:44:403
13091991360,78cyclictest0-21swapper/1110:30:113
132269913541,80cyclictest0-21swapper/3011:48:0224
130919913544,58cyclictest0-21swapper/1111:11:233
130919913529,63cyclictest0-21swapper/1109:45:203
130919913529,63cyclictest0-21swapper/1109:45:193
130919913527,65cyclictest0-21swapper/1111:09:133
132339913439,58cyclictest0-21swapper/3110:02:4425
130919913446,61cyclictest0-21swapper/1112:39:343
130919913441,60cyclictest0-21swapper/1111:16:113
13091991340,78cyclictest0-21swapper/1110:11:453
13048991346,109cyclictest0-21swapper/409:58:3526
13048991346,107cyclictest0-21swapper/411:24:2926
13091991330,80cyclictest0-21swapper/1111:50:243
13091991330,79cyclictest0-21swapper/1110:35:023
13091991330,78cyclictest0-21swapper/1107:50:243
13048991336,102cyclictest0-21swapper/411:04:0926
13048991335,97cyclictest0-21swapper/412:10:5226
1317099132130,1cyclictest151rcu_preempt11:29:3815
130919913231,65cyclictest0-21swapper/1107:19:593
13091991320,78cyclictest0-21swapper/1110:18:423
130529913249,7cyclictest0-21swapper/512:36:1527
130379913222,29cyclictest0-21swapper/312:25:1623
130919913127,67cyclictest0-21swapper/1109:25:333
130919913127,67cyclictest0-21swapper/1109:25:333
13091991310,78cyclictest0-21swapper/1111:01:443
13048991316,93cyclictest0-21swapper/411:53:0926
13037991310,82cyclictest0-21swapper/310:00:4023
130919913016,72cyclictest0-21swapper/1107:41:353
13091991300,77cyclictest0-21swapper/1109:20:133
13091991300,77cyclictest0-21swapper/1109:20:133
13091991290,76cyclictest0-21swapper/1112:05:223
130919912829,66cyclictest0-21swapper/1109:35:433
130919912829,66cyclictest0-21swapper/1109:35:423
130919912826,66cyclictest0-21swapper/1112:20:203
13091991280,74cyclictest0-21swapper/1107:49:213
130379912846,53cyclictest0-21swapper/312:05:1723
132269912728,65cyclictest0-21swapper/3009:40:1824
130919912730,68cyclictest0-21swapper/1110:40:223
13048991278,118cyclictest0-21swapper/411:57:2626
130379912726,72cyclictest0-21swapper/310:08:0123
132269912631,56cyclictest0-21swapper/3007:55:2024
1319899126125,1cyclictest3385-21swap08:40:2319
1319899126125,1cyclictest3385-21swap08:40:2319
13091991261,76cyclictest0-21swapper/1108:10:123
13091991260,74cyclictest0-21swapper/1109:30:223
13091991260,74cyclictest0-21swapper/1109:30:223
130379912645,55cyclictest0-21swapper/307:42:1623
130379912630,63cyclictest0-21swapper/309:40:2123
130379912625,65cyclictest0-21swapper/312:23:5623
130379912617,60cyclictest0-21swapper/310:41:1923
132269912532,57cyclictest0-21swapper/3011:20:1524
13091991250,75cyclictest0-21swapper/1108:57:443
13091991250,75cyclictest0-21swapper/1108:57:433
13048991256,58cyclictest0-21swapper/410:41:0826
130379912528,64cyclictest0-21swapper/311:56:0823
130379912527,67cyclictest0-21swapper/310:35:4923
130919912427,72cyclictest0-21swapper/1110:25:563
13091991242,70cyclictest0-21swapper/1110:00:183
130379912456,43cyclictest19770-21kworker/3:109:45:1223
130379912456,43cyclictest19770-21kworker/3:109:45:1223
130379912429,66cyclictest0-21swapper/310:51:4323
130379912428,65cyclictest0-21swapper/312:32:2923
130379912427,63cyclictest0-21swapper/308:51:1223
130379912427,63cyclictest0-21swapper/308:51:1223
130379912427,62cyclictest0-21swapper/308:49:3723
130379912427,62cyclictest0-21swapper/308:49:3623
130379912425,60cyclictest0-21swapper/309:29:1023
130379912425,60cyclictest0-21swapper/309:29:1023
130379912332,61cyclictest0-21swapper/311:02:0923
130379912330,70cyclictest0-21swapper/311:34:4623
130379912328,65cyclictest0-21swapper/310:55:1223
130379912327,65cyclictest0-21swapper/309:58:3323
130379912327,62cyclictest0-21swapper/311:13:5323
130379912324,63cyclictest0-21swapper/311:52:2423
13091991220,72cyclictest0-21swapper/1108:50:173
13091991220,72cyclictest0-21swapper/1108:50:173
130379912228,68cyclictest0-21swapper/310:14:0223
130379912227,65cyclictest0-21swapper/307:35:1923
130379912227,64cyclictest0-21swapper/309:37:4223
130379912227,64cyclictest0-21swapper/309:37:4123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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