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2026-09-02 - 17:17
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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 Wed Sep 02, 2026 12:49:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
330891235227,6phc2sys0-21swapper/207:09:2012
134559917321,152cyclictest0-21swapper/1110:49:343
134559917021,95cyclictest0-21swapper/1111:25:243
3273911690,162ptp4l0-21swapper/107:09:511
134129916824,129cyclictest0-21swapper/109:05:111
134129915528,125cyclictest0-21swapper/109:30:061
134509915422,98cyclictest151rcu_preempt11:13:052
134129915428,91cyclictest0-21swapper/112:03:431
134129915428,91cyclictest0-21swapper/112:03:421
134129915227,87cyclictest0-21swapper/109:55:131
134129915025,73cyclictest0-21swapper/110:55:171
134859914711,104cyclictest151rcu_preempt08:44:3810
13562991461,86cyclictest0-21swapper/2907:35:2122
13562991461,86cyclictest0-21swapper/2907:35:2122
13427991420,82cyclictest0-21swapper/409:17:0426
134079914222,50cyclictest0-21swapper/007:55:130
134079914222,50cyclictest0-21swapper/007:55:120
13504991390,87cyclictest0-21swapper/2112:15:0214
13504991390,87cyclictest0-21swapper/2112:15:0214
13446991390,87cyclictest0-21swapper/912:30:2331
13446991390,87cyclictest0-21swapper/912:30:2231
134279913923,109cyclictest0-21swapper/407:28:4326
134279913923,109cyclictest0-21swapper/407:28:4326
134129913924,72cyclictest0-21swapper/112:22:571
134129913924,72cyclictest0-21swapper/112:22:571
135629913721,90cyclictest0-21swapper/2909:32:1322
134559913721,7cyclictest0-21swapper/1111:45:113
135629913448,57cyclictest0-21swapper/2909:43:0522
134279913429,76cyclictest0-21swapper/411:50:1226
134279913423,69cyclictest0-21swapper/412:15:1926
134279913423,69cyclictest0-21swapper/412:15:1826
134129913423,69cyclictest0-21swapper/112:06:051
135629913352,55cyclictest0-21swapper/2911:38:3222
13455991330,85cyclictest0-21swapper/1107:55:213
13455991330,85cyclictest0-21swapper/1107:55:213
135629913246,60cyclictest0-21swapper/2908:01:3322
13562991320,89cyclictest0-21swapper/2909:51:3722
134219913223,98cyclictest0-21swapper/311:44:4223
13421991321,90cyclictest0-21swapper/310:40:2223
13421991320,86cyclictest0-21swapper/311:23:4023
135629913145,55cyclictest0-21swapper/2910:07:0822
135629913144,60cyclictest0-21swapper/2909:14:4522
134859913143,38cyclictest151rcu_preempt07:39:2710
134859913143,38cyclictest151rcu_preempt07:39:2710
134129913127,14cyclictest0-21swapper/107:59:281
134129913127,14cyclictest0-21swapper/107:59:281
135629913053,38cyclictest0-21swapper/2911:44:2422
135629913034,64cyclictest0-21swapper/2909:22:1422
134559913018,62cyclictest0-21swapper/1111:37:093
135629912945,60cyclictest0-21swapper/2910:35:5922
135629912944,64cyclictest0-21swapper/2911:52:5722
135629912939,61cyclictest0-21swapper/2907:52:4422
135629912939,61cyclictest0-21swapper/2907:52:4422
135629912937,59cyclictest0-21swapper/2910:11:2522
1344399129127,1cyclictest151rcu_preempt10:46:2230
135629912852,65cyclictest0-21swapper/2912:23:2422
135629912852,65cyclictest0-21swapper/2912:23:2422
134509912852,72cyclictest0-21swapper/1012:18:172
134509912852,72cyclictest0-21swapper/1012:18:172
134509912825,64cyclictest0-21swapper/1009:05:202
135629912750,61cyclictest0-21swapper/2909:58:2122
135629912750,59cyclictest0-21swapper/2907:15:3522
135629912750,59cyclictest0-21swapper/2907:15:3522
135629912748,56cyclictest0-21swapper/2911:15:0722
135629912747,52cyclictest0-21swapper/2912:38:4122
135629912747,52cyclictest0-21swapper/2912:38:4022
135629912745,53cyclictest0-21swapper/2911:31:3522
135629912744,59cyclictest0-21swapper/2908:14:5422
135629912744,54cyclictest0-21swapper/2911:48:4922
135629912744,52cyclictest0-21swapper/2908:51:4722
135629912727,65cyclictest0-21swapper/2909:47:5222
134129912715,92cyclictest0-21swapper/112:33:101
134129912715,92cyclictest0-21swapper/112:33:101
135629912645,55cyclictest0-21swapper/2910:48:1722
135629912644,64cyclictest0-21swapper/2912:04:1122
135629912644,64cyclictest0-21swapper/2912:04:1122
135629912643,63cyclictest0-21swapper/2912:28:4622
135629912643,63cyclictest0-21swapper/2912:28:4622
135629912627,65cyclictest0-21swapper/2907:30:3322
135629912627,65cyclictest0-21swapper/2907:30:3322
135629912626,70cyclictest0-21swapper/2909:18:3022
135629912626,66cyclictest0-21swapper/2910:55:3022
134559912638,59cyclictest0-21swapper/1110:04:143
134219912626,99cyclictest0-21swapper/311:31:0923
134219912615,84cyclictest0-21swapper/312:17:5223
134219912615,84cyclictest0-21swapper/312:17:5123
135629912546,51cyclictest0-21swapper/2908:19:4322
135629912528,70cyclictest0-21swapper/2910:23:1022
135629912527,66cyclictest0-21swapper/2910:34:5622
135629912526,69cyclictest0-21swapper/2908:55:3122
135629912526,66cyclictest0-21swapper/2911:28:2222
135629912525,66cyclictest0-21swapper/2908:45:2122
135629912524,54cyclictest0-21swapper/2909:25:0122
13421991251,78cyclictest0-21swapper/311:51:2523
135629912447,59cyclictest0-21swapper/2912:14:0422
135629912447,59cyclictest0-21swapper/2912:14:0422
135629912431,67cyclictest0-21swapper/2910:44:0122
135629912429,71cyclictest0-21swapper/2911:09:3922
135629912428,70cyclictest0-21swapper/2911:56:5722
135629912427,71cyclictest0-21swapper/2909:39:2022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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