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2026-09-15 - 13:00
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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 Sep 15, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
195422920,8sleep20-21swapper/219:05:152
139491238171,23phc2sys0-21swapper/319:08:293
36512204170,22sleep00-21swapper/019:07:230
36472201168,23sleep10-21swapper/119:07:201
296772820,2sleep029680-21wc23:25:130
385428162,11sleep00-21swapper/019:10:000
139391790,1ptp4l25809-21apt-get00:25:093
124402710,3sleep012422-21dump-pmu-power20:35:000
4147996231,4cyclictest25-21ksoftirqd/120:19:591
4147996230,4cyclictest25-21ksoftirqd/120:05:141
250472600,3sleep10-21swapper/119:50:241
4148995923,8cyclictest33-21ksoftirqd/223:25:242
4147995930,3cyclictest25-21ksoftirqd/119:25:141
4147995929,3cyclictest25-21ksoftirqd/123:45:141
4147995928,3cyclictest25-21ksoftirqd/100:35:141
4147995925,6cyclictest25-21ksoftirqd/121:05:261
4147995828,4cyclictest25-21ksoftirqd/121:15:221
4147995827,4cyclictest25-21ksoftirqd/123:40:011
4147995823,6cyclictest25-21ksoftirqd/121:35:131
4146995829,4cyclictest9-21ksoftirqd/019:40:260
4146995825,6cyclictest9-21ksoftirqd/023:00:010
139391580,1ptp4l401ktimersoftd/300:00:313
4148995720,10cyclictest33-21ksoftirqd/223:45:132
4147995728,4cyclictest25-21ksoftirqd/120:00:181
4147995723,7cyclictest25-21ksoftirqd/119:45:131
4147995719,7cyclictest25-21ksoftirqd/123:05:241
4146995727,6cyclictest9-21ksoftirqd/019:50:170
4146995725,6cyclictest9-21ksoftirqd/022:15:110
4146995724,7cyclictest9-21ksoftirqd/022:35:150
4146995717,6cyclictest9-21ksoftirqd/019:25:240
4147995627,4cyclictest25-21ksoftirqd/100:10:191
4147995623,7cyclictest25-21ksoftirqd/120:45:211
4147995521,6cyclictest25-21ksoftirqd/119:55:201
4147995520,8cyclictest25-21ksoftirqd/100:20:241
4146995528,4cyclictest9-21ksoftirqd/022:50:210
4146995527,3cyclictest9-21ksoftirqd/020:55:130
4146995521,3cyclictest9-21ksoftirqd/021:25:260
4146995510,7cyclictest9-21ksoftirqd/021:00:200
139391550,1ptp4l401ktimersoftd/321:25:143
414799547,2cyclictest25-21ksoftirqd/123:00:221
4147995423,7cyclictest25-21ksoftirqd/119:15:161
4147995423,7cyclictest25-21ksoftirqd/119:15:161
4147995422,6cyclictest25-21ksoftirqd/123:50:211
4147995417,7cyclictest25-21ksoftirqd/123:10:161
4147995417,7cyclictest25-21ksoftirqd/100:05:221
4146995426,4cyclictest9-21ksoftirqd/020:10:200
4146995424,7cyclictest9-21ksoftirqd/000:20:230
4147995322,3cyclictest25-21ksoftirqd/122:30:151
4147995322,3cyclictest25-21ksoftirqd/122:30:141
4147995321,8cyclictest25-21ksoftirqd/121:40:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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