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2026-06-10 - 13:28
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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 Jun 10, 2026 00:49:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912840,271ptp4l0-21swapper/119:05:211
218159926687,1cyclictest151rcu_preempt23:51:350
21881992505,215cyclictest0-21swapper/919:10:1031
21881992505,215cyclictest0-21swapper/919:10:1031
220079923738,198cyclictest151rcu_preempt22:31:4217
2196399187107,46cyclictest0-21swapper/1922:36:5611
220389917926,86cyclictest0-21swapper/2821:20:1121
330891177169,6phc2sys0-21swapper/219:05:2112
218709916136,68cyclictest0-21swapper/822:50:1130
219819915535,113cyclictest0-21swapper/2121:10:2214
218369915348,100cyclictest0-21swapper/400:05:2426
219819915135,60cyclictest0-21swapper/2123:02:1814
219819915132,118cyclictest0-21swapper/2122:40:1814
219819914928,104cyclictest0-21swapper/2122:49:2814
219819914827,93cyclictest0-21swapper/2122:20:2114
218369914870,71cyclictest40-21ksoftirqd/421:31:4526
218369914815,130cyclictest151rcu_preempt23:25:1926
219819914525,76cyclictest0-21swapper/2123:42:2314
219819914424,80cyclictest3753-21diskstats20:35:1414
219819914423,101cyclictest0-21swapper/2122:32:5414
21990991430,86cyclictest0-21swapper/2219:35:2015
21990991430,86cyclictest0-21swapper/2219:35:2015
219819914226,77cyclictest0-21swapper/2119:40:1714
219819914226,77cyclictest0-21swapper/2119:40:1714
218709913959,22cyclictest64-21ksoftirqd/800:19:0730
219249913827,69cyclictest0-21swapper/1400:24:316
219249913731,71cyclictest0-21swapper/1423:48:406
219249913646,61cyclictest0-21swapper/1423:30:306
21924991360,79cyclictest0-21swapper/1422:30:066
218369913632,103cyclictest0-21swapper/400:14:2226
218369913631,103cyclictest0-21swapper/421:05:1826
219249913535,27cyclictest0-21swapper/1421:30:156
219249913526,71cyclictest0-21swapper/1423:59:226
21924991351,80cyclictest0-21swapper/1421:12:366
219249913449,54cyclictest0-21swapper/1422:47:456
219249913432,64cyclictest0-21swapper/1420:30:246
219249913429,68cyclictest0-21swapper/1423:02:426
219249913429,66cyclictest0-21swapper/1421:41:286
219249913428,64cyclictest0-21swapper/1422:25:186
219249913427,67cyclictest0-21swapper/1400:02:346
21924991340,79cyclictest0-21swapper/1420:35:466
21924991340,78cyclictest0-21swapper/1422:55:146
218369913431,83cyclictest0-21swapper/421:10:1326
219249913328,65cyclictest0-21swapper/1419:46:356
219249913328,65cyclictest0-21swapper/1419:46:356
218709913324,107cyclictest151rcu_preempt00:20:5930
21932991320,86cyclictest0-21swapper/1500:19:407
219249913232,76cyclictest0-21swapper/1421:23:186
218709913219,110cyclictest151rcu_preempt22:00:2530
219249913129,75cyclictest0-21swapper/1423:15:006
218909913119,81cyclictest0-21swapper/1022:39:402
219249913032,76cyclictest0-21swapper/1420:22:236
219249913028,66cyclictest0-21swapper/1421:01:556
219249913027,64cyclictest0-21swapper/1421:15:176
219249913026,67cyclictest0-21swapper/1422:38:416
219249912929,72cyclictest0-21swapper/1419:28:576
219249912929,72cyclictest0-21swapper/1419:28:576
219249912928,66cyclictest0-21swapper/1421:47:536
219249912927,66cyclictest0-21swapper/1422:10:526
219249912927,60cyclictest0-21swapper/1400:18:366
218909912931,96cyclictest151rcu_preempt22:01:112
219819912811,97cyclictest0-21swapper/2100:06:0114
219249912832,74cyclictest0-21swapper/1420:42:416
219249912831,74cyclictest0-21swapper/1400:29:506
219249912830,71cyclictest0-21swapper/1423:54:336
219249912829,72cyclictest0-21swapper/1400:37:196
219249912827,66cyclictest0-21swapper/1420:25:206
219249912824,61cyclictest0-21swapper/1422:16:136
21924991281,71cyclictest0-21swapper/1421:35:046
218709912827,14cyclictest0-21swapper/821:05:2230
219249912732,75cyclictest0-21swapper/1419:15:216
219249912732,75cyclictest0-21swapper/1419:15:216
219249912729,71cyclictest0-21swapper/1400:06:196
21924991270,75cyclictest0-21swapper/1419:53:006
21924991270,75cyclictest0-21swapper/1419:53:006
218909912716,69cyclictest0-21swapper/1023:32:402
2203199126123,1cyclictest179-21ksoftirqd/2722:43:3020
219249912629,66cyclictest0-21swapper/1422:00:426
219249912628,64cyclictest0-21swapper/1423:16:206
219249912625,66cyclictest0-21swapper/1422:07:566
219329912516,75cyclictest0-21swapper/1500:05:167
219249912557,67cyclictest0-21swapper/1419:35:226
219249912557,67cyclictest0-21swapper/1419:35:226
220389912421,20cyclictest0-21swapper/2821:53:4821
219329912416,72cyclictest0-21swapper/1522:55:157
219329912416,68cyclictest0-21swapper/1521:59:077
219249912440,54cyclictest0-21swapper/1419:14:316
219249912440,54cyclictest0-21swapper/1419:14:316
219249912433,75cyclictest0-21swapper/1419:34:496
219249912433,75cyclictest0-21swapper/1419:34:496
219249912431,74cyclictest0-21swapper/1420:45:216
219249912430,74cyclictest0-21swapper/1421:25:586
218369912342,56cyclictest0-21swapper/419:40:2026
218369912342,56cyclictest0-21swapper/419:40:2026
219249912242,51cyclictest0-21swapper/1422:50:256
219249912232,77cyclictest0-21swapper/1421:55:226
219249912231,75cyclictest0-21swapper/1419:43:226
219249912231,75cyclictest0-21swapper/1419:43:226
219249912212,71cyclictest0-21swapper/1400:12:126
218709912244,36cyclictest0-21swapper/819:15:1730
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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