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2026-06-10 - 09:43
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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 Wed Jun 10, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
97852820,5sleep00-21swapper/020:30:210
134491720,3ptp4l0-21swapper/119:30:121
4147997031,8cyclictest41-21ksoftirqd/321:10:243
4147997029,8cyclictest41-21ksoftirqd/322:35:223
4147997025,7cyclictest41-21ksoftirqd/321:57:113
4147996936,7cyclictest41-21ksoftirqd/300:20:003
4147996732,3cyclictest41-21ksoftirqd/323:30:003
134491670,28ptp4l25293-21awk22:15:001
4147996635,7cyclictest41-21ksoftirqd/322:45:113
4147996627,11cyclictest41-21ksoftirqd/300:36:423
4144996633,10cyclictest9-21ksoftirqd/000:30:000
4147996535,7cyclictest41-21ksoftirqd/320:35:283
4147996527,8cyclictest41-21ksoftirqd/321:00:003
4144996528,6cyclictest9-21ksoftirqd/020:00:190
4144996527,3cyclictest9-21ksoftirqd/000:35:130
4147996433,7cyclictest41-21ksoftirqd/320:28:273
4147996431,7cyclictest41-21ksoftirqd/321:10:003
4147996424,8cyclictest41-21ksoftirqd/322:21:103
76252630,3sleep30-21swapper/321:35:183
4147996333,6cyclictest41-21ksoftirqd/323:25:013
4147996333,3cyclictest41-21ksoftirqd/320:20:013
4147996330,6cyclictest41-21ksoftirqd/322:30:213
4147996330,4cyclictest41-21ksoftirqd/321:15:303
4147996330,4cyclictest41-21ksoftirqd/321:15:303
4147996329,8cyclictest41-21ksoftirqd/320:20:133
4147996329,7cyclictest41-21ksoftirqd/319:10:233
4147996326,8cyclictest41-21ksoftirqd/322:19:343
4147996325,10cyclictest41-21ksoftirqd/319:42:173
4147996233,8cyclictest41-21ksoftirqd/320:40:173
4147996232,3cyclictest41-21ksoftirqd/323:30:223
4147996229,4cyclictest41-21ksoftirqd/321:55:003
4147996229,4cyclictest41-21ksoftirqd/321:55:003
4147996228,3cyclictest41-21ksoftirqd/323:05:003
4147996225,7cyclictest41-21ksoftirqd/322:53:463
4147996224,8cyclictest41-21ksoftirqd/319:16:433
4147996224,7cyclictest41-21ksoftirqd/323:56:543
4147996223,7cyclictest41-21ksoftirqd/321:00:193
4147996223,7cyclictest41-21ksoftirqd/320:51:593
134491620,21ptp4l0-21swapper/200:25:202
4147996131,7cyclictest41-21ksoftirqd/322:10:263
4147996130,8cyclictest41-21ksoftirqd/323:50:173
4147996126,7cyclictest41-21ksoftirqd/321:45:143
4147996124,7cyclictest41-21ksoftirqd/300:17:043
4147996124,10cyclictest41-21ksoftirqd/320:02:263
4144996131,5cyclictest9-21ksoftirqd/021:20:180
4144996131,5cyclictest9-21ksoftirqd/021:20:180
4144996126,5cyclictest9-21ksoftirqd/021:35:190
4144996126,4cyclictest9-21ksoftirqd/022:45:190
4147996031,4cyclictest41-21ksoftirqd/319:50:263
4147996028,9cyclictest41-21ksoftirqd/323:40:163
4147996028,9cyclictest41-21ksoftirqd/319:45:193
4147996024,7cyclictest41-21ksoftirqd/323:09:003
4147996022,7cyclictest41-21ksoftirqd/322:41:203
4144996031,8cyclictest9-21ksoftirqd/000:05:320
4144996027,3cyclictest9-21ksoftirqd/023:25:190
4144996025,7cyclictest9-21ksoftirqd/021:50:000
4147995926,9cyclictest41-21ksoftirqd/300:05:223
4147995922,8cyclictest41-21ksoftirqd/323:48:113
4147995922,8cyclictest41-21ksoftirqd/323:48:113
4147995922,8cyclictest41-21ksoftirqd/322:28:163
4147995921,8cyclictest41-21ksoftirqd/323:18:513
4144995928,6cyclictest9-21ksoftirqd/021:55:270
4144995924,3cyclictest9-21ksoftirqd/000:21:220
4147995830,6cyclictest41-21ksoftirqd/322:55:263
4147995827,6cyclictest41-21ksoftirqd/320:30:233
4147995822,4cyclictest41-21ksoftirqd/300:10:233
4147995821,7cyclictest41-21ksoftirqd/322:05:453
4147995820,7cyclictest41-21ksoftirqd/320:10:033
4144995829,7cyclictest9-21ksoftirqd/023:57:060
4147995725,7cyclictest41-21ksoftirqd/323:35:243
4147995724,10cyclictest41-21ksoftirqd/321:40:133
4147995722,6cyclictest41-21ksoftirqd/321:30:133
4144995726,5cyclictest9-21ksoftirqd/023:15:230
4144995726,3cyclictest9-21ksoftirqd/023:47:010
4144995726,3cyclictest9-21ksoftirqd/023:47:010
4144995725,5cyclictest9-21ksoftirqd/019:45:140
134491570,4ptp4l0-21swapper/220:53:182
134491570,3ptp4l0-21swapper/222:20:332
4147995628,7cyclictest41-21ksoftirqd/321:25:273
4147995625,7cyclictest41-21ksoftirqd/319:20:253
4147995623,7cyclictest41-21ksoftirqd/300:30:143
4144995628,5cyclictest9-21ksoftirqd/022:50:140
4144995627,7cyclictest9-21ksoftirqd/023:00:260
4144995625,4cyclictest9-21ksoftirqd/022:05:180
4144995624,5cyclictest9-21ksoftirqd/023:35:130
4144995624,3cyclictest9-21ksoftirqd/019:32:450
4144995623,3cyclictest9-21ksoftirqd/023:32:410
4144995622,5cyclictest9-21ksoftirqd/019:50:250
4144995621,5cyclictest9-21ksoftirqd/019:17:230
4144995620,5cyclictest9-21ksoftirqd/019:10:170
4147995520,7cyclictest41-21ksoftirqd/320:48:273
414499556,8cyclictest9-21ksoftirqd/022:20:270
414499553,6cyclictest9-21ksoftirqd/021:30:000
134491550,4ptp4l0-21swapper/119:22:171
134491550,3ptp4l0-21swapper/223:11:552
134491550,3ptp4l0-21swapper/223:11:552
134491550,3ptp4l0-21swapper/121:15:231
134491550,3ptp4l0-21swapper/121:15:221
4147995443,3cyclictest41-21ksoftirqd/320:05:133
4147995422,8cyclictest41-21ksoftirqd/319:30:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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