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2026-06-24 - 14:36
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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 24, 2026 00:49:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913280,313ptp4l0-21swapper/119:05:221
30979923332,3cyclictest151rcu_preempt23:20:0310
30019917533,113cyclictest0-21swapper/121:28:041
30019917533,113cyclictest0-21swapper/121:28:041
30019917330,141cyclictest0-21swapper/100:10:011
30019917131,98cyclictest0-21swapper/121:55:521
30019917131,98cyclictest0-21swapper/121:55:511
30019917130,98cyclictest0-21swapper/123:46:291
30019916925,115cyclictest151rcu_preempt22:30:361
30019916913,133cyclictest151rcu_preempt22:51:431
30019916363,99cyclictest22-21ksoftirqd/122:26:541
30019916219,136cyclictest0-21swapper/123:56:261
30019916057,102cyclictest22-21ksoftirqd/122:35:571
30019916057,102cyclictest22-21ksoftirqd/122:35:561
30069915928,129cyclictest0-21swapper/222:23:0712
30069915324,95cyclictest0-21swapper/223:51:0112
30289914612,124cyclictest151rcu_preempt21:17:3929
30289914612,124cyclictest151rcu_preempt21:17:3829
30069914437,64cyclictest0-21swapper/222:06:0112
30069914437,64cyclictest0-21swapper/222:06:0112
3006991430,84cyclictest0-21swapper/221:41:5812
3006991430,84cyclictest0-21swapper/221:41:5812
3028991410,84cyclictest0-21swapper/723:42:2829
30019913931,68cyclictest0-21swapper/123:03:441
3168991350,85cyclictest0-21swapper/2722:05:2320
3168991350,85cyclictest0-21swapper/2722:05:2220
30069913525,71cyclictest0-21swapper/221:25:2412
30069913525,71cyclictest0-21swapper/221:25:2412
3023991339,120cyclictest151rcu_preempt21:09:5828
3023991339,120cyclictest151rcu_preempt21:09:5828
3001991330,77cyclictest0-21swapper/100:04:081
30069913228,66cyclictest0-21swapper/221:52:4012
30069913228,66cyclictest0-21swapper/221:52:3912
30019913229,66cyclictest0-21swapper/123:28:511
30419913128,102cyclictest0-21swapper/1021:14:182
30419913128,102cyclictest0-21swapper/1021:14:182
30419913126,62cyclictest0-21swapper/1019:55:452
30419913125,63cyclictest0-21swapper/1021:35:092
30419913125,63cyclictest0-21swapper/1021:35:092
30069913126,61cyclictest0-21swapper/219:23:0212
30019913139,48cyclictest0-21swapper/123:36:361
31219913011,117cyclictest20540-21taskset22:31:1214
30419913037,51cyclictest0-21swapper/1021:15:552
30419913037,51cyclictest0-21swapper/1021:15:552
30419913029,66cyclictest0-21swapper/1022:20:352
30419913027,68cyclictest0-21swapper/1000:37:252
30419913027,68cyclictest0-21swapper/1000:14:262
30289913017,89cyclictest0-21swapper/719:34:5229
30019913049,63cyclictest0-21swapper/122:47:431
30019913029,66cyclictest0-21swapper/121:15:141
30019913029,66cyclictest0-21swapper/121:15:131
30019913028,64cyclictest0-21swapper/100:20:581
30019913026,63cyclictest0-21swapper/121:20:521
30019913026,63cyclictest0-21swapper/121:20:511
3168991292,79cyclictest0-21swapper/2722:00:1720
3121991298,111cyclictest0-21swapper/2122:21:5014
30419912951,64cyclictest0-21swapper/1022:40:222
30419912929,68cyclictest0-21swapper/1023:41:192
30419912929,65cyclictest0-21swapper/1023:18:192
30419912927,66cyclictest0-21swapper/1023:31:082
30019912930,70cyclictest0-21swapper/121:36:511
30019912930,70cyclictest0-21swapper/121:36:511
3121991288,85cyclictest0-21swapper/2100:04:4614
3121991288,80cyclictest0-21swapper/2121:22:3114
3121991288,80cyclictest0-21swapper/2121:22:3114
3121991288,111cyclictest0-21swapper/2121:57:4214
3121991288,111cyclictest0-21swapper/2121:57:4214
30419912829,69cyclictest0-21swapper/1022:19:322
30419912829,65cyclictest0-21swapper/1022:10:592
30419912829,65cyclictest0-21swapper/1022:10:582
30419912828,67cyclictest0-21swapper/1019:36:322
30419912828,66cyclictest0-21swapper/1023:07:052
3023991280,79cyclictest0-21swapper/619:53:1228
3006991280,83cyclictest0-21swapper/221:21:0712
3006991280,83cyclictest0-21swapper/221:21:0712
30019912838,59cyclictest0-21swapper/119:12:051
30019912831,75cyclictest0-21swapper/123:08:321
30019912829,68cyclictest0-21swapper/122:01:121
30019912829,67cyclictest0-21swapper/119:35:351
30019912828,69cyclictest0-21swapper/122:59:591
30019912828,65cyclictest0-21swapper/119:25:101
30019912826,65cyclictest0-21swapper/100:17:301
3001991280,83cyclictest0-21swapper/119:42:471
3168991270,97cyclictest0-21swapper/2719:20:4620
3121991278,84cyclictest0-21swapper/2119:55:1614
3121991278,82cyclictest0-21swapper/2122:12:1314
3121991278,82cyclictest0-21swapper/2122:12:1314
3121991278,67cyclictest0-21swapper/2100:24:4714
30419912743,64cyclictest0-21swapper/1023:57:512
30419912729,70cyclictest0-21swapper/1022:36:382
30419912729,70cyclictest0-21swapper/1022:36:372
30419912729,69cyclictest0-21swapper/1023:24:102
30419912728,68cyclictest0-21swapper/1020:00:192
30419912728,65cyclictest0-21swapper/1021:00:252
30419912728,64cyclictest0-21swapper/1021:56:322
30419912728,64cyclictest0-21swapper/1021:56:322
30419912728,61cyclictest0-21swapper/1019:46:092
3023991275,67cyclictest0-21swapper/623:25:1228
30019912754,60cyclictest0-21swapper/121:44:201
30019912754,60cyclictest0-21swapper/121:44:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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