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2026-04-18 - 06:24
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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 100 highest latencies:
System rackdslot1.osadl.org (updated Sat Apr 18, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
514899730,31cyclictest31417-21cat22:25:002
514799711,68cyclictest22266-21kworker/1:119:48:481
514899700,27cyclictest32612-1kworker/2:1H19:20:002
130492680,5sleep20-21swapper/220:35:182
5146996325,4cyclictest9-21ksoftirqd/023:00:240
41272620,3sleep20-21swapper/219:05:232
229272620,4sleep30-21swapper/323:15:123
229272620,4sleep30-21swapper/323:15:123
5146996157,2cyclictest111rcuc/021:10:240
5146996131,5cyclictest9-21ksoftirqd/019:10:180
215482610,3sleep00-21swapper/000:20:200
514899590,26cyclictest20379-21wc20:50:182
514799591,55cyclictest22266-21kworker/1:119:50:481
134491570,3ptp4l0-21swapper/219:35:062
134491570,3ptp4l0-21swapper/022:25:160
134491560,4ptp4l0-21swapper/100:37:431
134491560,3ptp4l0-21swapper/323:24:413
134491560,3ptp4l0-21swapper/122:00:101
134491560,16ptp4l0-21swapper/100:15:001
514699553,6cyclictest9-21ksoftirqd/021:45:270
5146995526,7cyclictest9-21ksoftirqd/023:55:170
134491550,3ptp4l0-21swapper/319:28:003
134491550,3ptp4l0-21swapper/022:20:000
134491550,12ptp4l0-21swapper/120:22:361
5146995420,5cyclictest9-21ksoftirqd/021:55:200
514699540,14cyclictest0-21swapper/020:10:090
134491540,4ptp4l0-21swapper/023:31:320
134491540,3ptp4l0-21swapper/121:34:381
514699536,5cyclictest30320-21apt-get20:05:000
514699535,8cyclictest9-21ksoftirqd/019:50:000
514699530,6cyclictest134491ptp4l22:45:280
134491530,3ptp4l0-21swapper/122:58:261
134491530,2ptp4l0-21swapper/123:49:171
125142530,5sleep2514899cyclictest21:43:212
514699525,5cyclictest9-21ksoftirqd/023:25:120
514699523,6cyclictest9-21ksoftirqd/000:25:180
134491520,4ptp4l0-21swapper/022:33:230
134491520,3ptp4l0-21swapper/123:43:021
514699514,4cyclictest9-21ksoftirqd/023:35:250
514699513,6cyclictest9-21ksoftirqd/019:35:130
514699512,6cyclictest9-21ksoftirqd/022:05:180
514699512,13cyclictest0-21swapper/019:18:210
134491510,6ptp4l0-21swapper/319:05:073
134491510,4ptp4l0-21swapper/022:40:300
134491510,11ptp4l0-21swapper/123:35:241
514699505,5cyclictest9-21ksoftirqd/022:15:150
514699505,4cyclictest9-21ksoftirqd/020:35:190
514699504,5cyclictest9-21ksoftirqd/022:15:000
514699504,3cyclictest121rcu_preempt23:20:250
514699503,7cyclictest0-21swapper/023:42:590
514699503,7cyclictest0-21swapper/022:38:580
514699503,6cyclictest9-21ksoftirqd/019:55:130
514699503,5cyclictest9-21ksoftirqd/000:40:000
134491500,3ptp4l0-21swapper/000:00:470
514799490,46cyclictest25666-21kworker/1:222:10:291
514699496,7cyclictest9-21ksoftirqd/021:35:280
514699496,10cyclictest9-21ksoftirqd/021:30:250
514699495,5cyclictest9-21ksoftirqd/020:25:130
514699495,5cyclictest9-21ksoftirqd/000:10:230
514699493,7cyclictest9-21ksoftirqd/020:15:220
514699493,7cyclictest9-21ksoftirqd/000:10:000
514699493,6cyclictest0-21swapper/021:50:230
514699493,5cyclictest9-21ksoftirqd/021:20:260
514699492,6cyclictest9-21ksoftirqd/019:40:250
5146994921,5cyclictest9-21ksoftirqd/022:00:230
5146994921,2cyclictest9-21ksoftirqd/020:30:350
5146994917,4cyclictest9-21ksoftirqd/020:49:230
134491490,5ptp4l0-21swapper/119:09:251
116852490,3sleep111691-21timerandwakeup20:30:271
514899480,21cyclictest27240-21df_abs22:15:142
514699485,6cyclictest9-21ksoftirqd/023:15:000
514699485,6cyclictest9-21ksoftirqd/022:50:120
514699484,8cyclictest9-21ksoftirqd/023:50:130
514699484,5cyclictest9-21ksoftirqd/021:40:170
514699483,6cyclictest9-21ksoftirqd/019:50:270
514699483,5cyclictest9-21ksoftirqd/023:15:120
514699483,5cyclictest9-21ksoftirqd/023:15:120
514699483,5cyclictest9-21ksoftirqd/020:50:240
514699483,5cyclictest9-21ksoftirqd/020:05:270
514699482,5cyclictest9-21ksoftirqd/022:55:200
514699480,6cyclictest9-21ksoftirqd/020:20:120
514699480,6cyclictest9-21ksoftirqd/019:30:240
514699480,5cyclictest9-21ksoftirqd/020:40:170
134491480,4ptp4l0-21swapper/122:34:351
92322470,2sleep30-21swapper/323:55:163
514899470,23cyclictest12839-21taskset22:52:212
5147994718,27cyclictest0-21swapper/123:55:191
514699475,5cyclictest9-21ksoftirqd/000:30:190
514699473,6cyclictest9-21ksoftirqd/023:45:150
514699473,5cyclictest9-21ksoftirqd/021:15:280
134491470,2ptp4l22148-21apt-get22:05:121
134491470,2ptp4l0-21swapper/123:01:081
514699464,9cyclictest9-21ksoftirqd/021:00:140
514699464,7cyclictest9-21ksoftirqd/020:55:170
514699462,6cyclictest9-21ksoftirqd/019:20:220
514699460,5cyclictest9-21ksoftirqd/019:25:270
514899455,17cyclictest0-21swapper/220:35:012
514699454,8cyclictest9-21ksoftirqd/021:05:260
134491450,4ptp4l0-21swapper/223:56:132
134491450,4ptp4l0-21swapper/122:17:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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