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2026-06-16 - 08:05
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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
Characteristics of the 50 highest latencies:
System rackdslot3.osadl.org (updated Tue Jun 16, 2026 00:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
55502234167,22sleep30-21swapper/319:05:453
56712204171,21sleep10-21swapper/119:07:111
58762202169,22sleep00-21swapper/019:09:520
58842200170,20sleep20-21swapper/219:09:582
312062730,1sleep00-21swapper/020:00:200
139391720,1ptp4l401ktimersoftd/319:45:093
6181996622,4cyclictest25-21ksoftirqd/100:40:001
6181995917,4cyclictest25-21ksoftirqd/122:20:181
6181995613,7cyclictest25-21ksoftirqd/119:40:111
618199538,7cyclictest25-21ksoftirqd/119:30:161
6181995314,7cyclictest25-21ksoftirqd/123:05:171
139391520,1ptp4l401ktimersoftd/300:16:163
6181995119,5cyclictest25-21ksoftirqd/120:45:151
280082500,2sleep20-21swapper/223:15:272
6181994910,7cyclictest25-21ksoftirqd/123:40:251
618199487,5cyclictest25-21ksoftirqd/119:35:221
6180994828,8cyclictest9-21ksoftirqd/021:40:190
6183994740,4cyclictest16627-21turbostat.cron20:40:013
6181994710,7cyclictest25-21ksoftirqd/120:55:151
618199469,9cyclictest25-21ksoftirqd/120:00:131
618199469,8cyclictest25-21ksoftirqd/123:30:211
618199468,8cyclictest25-21ksoftirqd/121:50:231
618199463,3cyclictest121rcu_preempt21:00:251
6181994619,3cyclictest25-21ksoftirqd/121:15:181
618199459,8cyclictest25-21ksoftirqd/122:45:231
618199458,8cyclictest25-21ksoftirqd/121:35:241
618199455,3cyclictest121rcu_preempt21:20:231
6181994529,4cyclictest25-21ksoftirqd/120:00:011
6181994512,7cyclictest25-21ksoftirqd/123:50:221
618199448,7cyclictest25-21ksoftirqd/122:10:161
6180994413,3cyclictest9-21ksoftirqd/000:35:260
618199434,4cyclictest25-21ksoftirqd/123:10:181
618199434,4cyclictest25-21ksoftirqd/122:55:271
618199433,3cyclictest121rcu_preempt20:40:141
6181994311,7cyclictest25-21ksoftirqd/121:30:231
618199430,2cyclictest121rcu_preempt19:15:211
57898430,9rtkit-daemon0-21swapper/320:54:163
139391430,0ptp4l401ktimersoftd/322:28:273
618199427,8cyclictest25-21ksoftirqd/120:10:131
618199425,4cyclictest25-21ksoftirqd/100:20:191
618199424,10cyclictest25-21ksoftirqd/122:40:201
618199423,4cyclictest25-21ksoftirqd/119:20:221
618199423,12cyclictest25-21ksoftirqd/100:30:251
618199422,4cyclictest25-21ksoftirqd/120:05:161
618199421,3cyclictest25-21ksoftirqd/121:10:131
6181994211,9cyclictest25-21ksoftirqd/121:40:181
139391420,0ptp4l401ktimersoftd/323:21:363
6182994131,9cyclictest33-21ksoftirqd/220:00:232
6182994128,11cyclictest33-21ksoftirqd/219:44:592
618199417,7cyclictest25-21ksoftirqd/122:05:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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