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2026-06-30 - 10:48
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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 rackdslot4.osadl.org (updated Tue Jun 30, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89872203171,21sleep10-21swapper/119:07:101
89872203171,21sleep10-21swapper/119:07:091
89162203170,22sleep00-21swapper/019:06:160
89162203170,22sleep00-21swapper/019:06:150
89502202169,22sleep20-21swapper/219:06:412
89502202169,22sleep20-21swapper/219:06:412
138591202169,22phc2sys0-21swapper/319:07:303
138591202169,22phc2sys0-21swapper/319:07:293
1967521350,4sleep3951099cyclictest20:35:123
2656421210,5sleep1950899cyclictest23:00:001
138491710,1ptp4l391rcuc/323:25:243
138491660,8ptp4l401ktimersoftd/319:31:573
142792650,4sleep30-21swapper/322:35:113
9507996230,4cyclictest9-21ksoftirqd/020:10:150
9507996229,4cyclictest9-21ksoftirqd/023:10:000
9507996223,10cyclictest9-21ksoftirqd/019:10:160
9507996122,11cyclictest9-21ksoftirqd/020:50:180
9507996122,11cyclictest9-21ksoftirqd/020:50:180
9507996026,4cyclictest9-21ksoftirqd/023:20:130
9507996024,3cyclictest9-21ksoftirqd/023:55:110
9507995930,3cyclictest9-21ksoftirqd/022:30:010
9507995928,11cyclictest9-21ksoftirqd/021:25:160
9507995927,9cyclictest9-21ksoftirqd/000:00:180
9507995926,7cyclictest9-21ksoftirqd/000:20:000
9507995926,6cyclictest9-21ksoftirqd/022:50:210
9507995827,4cyclictest9-21ksoftirqd/022:35:130
9507995827,4cyclictest9-21ksoftirqd/020:35:200
9507995826,4cyclictest9-21ksoftirqd/021:00:210
9507995824,3cyclictest9-21ksoftirqd/019:55:160
9507995823,9cyclictest9-21ksoftirqd/022:15:250
9507995822,10cyclictest9-21ksoftirqd/021:35:140
9507995729,4cyclictest9-21ksoftirqd/021:10:140
9507995728,5cyclictest9-21ksoftirqd/021:15:200
9507995728,4cyclictest9-21ksoftirqd/020:10:000
9507995727,7cyclictest9-21ksoftirqd/023:20:000
9507995726,6cyclictest9-21ksoftirqd/000:35:250
9507995726,5cyclictest9-21ksoftirqd/019:20:000
9507995726,4cyclictest9-21ksoftirqd/019:35:000
9507995724,4cyclictest9-21ksoftirqd/000:10:160
9507995724,3cyclictest9-21ksoftirqd/023:45:240
9507995722,4cyclictest9-21ksoftirqd/023:40:130
950799567,10cyclictest19188-21idleruntime-cro19:30:000
9507995627,6cyclictest9-21ksoftirqd/000:05:310
9507995625,4cyclictest9-21ksoftirqd/000:25:130
9507995623,6cyclictest9-21ksoftirqd/022:30:130
9507995623,10cyclictest9-21ksoftirqd/019:20:150
9507995622,3cyclictest9-21ksoftirqd/021:05:130
9507995619,4cyclictest9-21ksoftirqd/023:00:260
9507995619,4cyclictest9-21ksoftirqd/019:45:260
323752560,2sleep20-21swapper/223:10:162
9507995529,3cyclictest9-21ksoftirqd/019:50:260
9507995521,5cyclictest9-21ksoftirqd/020:55:290
9507995519,6cyclictest9-21ksoftirqd/022:05:130
9507995421,5cyclictest9-21ksoftirqd/022:40:130
9507995420,5cyclictest9-21ksoftirqd/022:10:240
9507995324,3cyclictest9-21ksoftirqd/019:40:170
9507995318,5cyclictest9-21ksoftirqd/023:35:130
950799525,4cyclictest9-21ksoftirqd/021:50:180
78072520,1sleep10-21swapper/123:25:201
138491520,1ptp4l391rcuc/321:40:313
950799517,8cyclictest9-21ksoftirqd/020:25:170
950799514,9cyclictest9-21ksoftirqd/021:50:000
9508995044,3cyclictest11629-21awk21:25:001
9507995010,4cyclictest9-21ksoftirqd/022:50:000
950799497,3cyclictest9-21ksoftirqd/000:25:000
950799493,6cyclictest9-21ksoftirqd/023:50:260
9507994923,3cyclictest9-21ksoftirqd/020:43:410
950799491,9cyclictest9-21ksoftirqd/020:30:210
950799486,7cyclictest9-21ksoftirqd/021:20:210
950799486,3cyclictest9-21ksoftirqd/020:00:280
950799485,6cyclictest9-21ksoftirqd/021:30:190
950799485,3cyclictest7714-21sed23:25:190
9507994830,10cyclictest9-21ksoftirqd/023:30:140
9507994814,10cyclictest9-21ksoftirqd/022:55:120
950799475,2cyclictest9-21ksoftirqd/020:45:120
950799473,8cyclictest9-21ksoftirqd/022:20:180
9507994718,5cyclictest9-21ksoftirqd/020:20:260
950799465,2cyclictest9-21ksoftirqd/021:55:240
950799464,2cyclictest9-21ksoftirqd/000:35:010
950799463,5cyclictest9-21ksoftirqd/020:15:260
950799452,5cyclictest9-21ksoftirqd/019:30:150
138491450,0ptp4l401ktimersoftd/320:53:433
138491450,0ptp4l401ktimersoftd/320:53:433
951099441,40cyclictest26710-21grep20:50:013
950799445,2cyclictest9-21ksoftirqd/021:40:240
950799442,2cyclictest121rcu_preempt23:10:130
9510994336,4cyclictest14252-21cron19:20:003
950799430,5cyclictest9-21ksoftirqd/022:00:240
138491430,0ptp4l401ktimersoftd/323:57:443
138491430,0ptp4l401ktimersoftd/321:10:193
138491430,0ptp4l401ktimersoftd/319:47:403
138491420,0ptp4l401ktimersoftd/322:50:403
9510994127,12cyclictest41-21ksoftirqd/319:29:593
138491410,0ptp4l401ktimersoftd/323:05:163
950999408,9cyclictest0-21swapper/220:00:002
138491400,1ptp4l401ktimersoftd/321:17:173
138491400,0ptp4l401ktimersoftd/322:34:333
9510993932,4cyclictest41-21ksoftirqd/321:25:003
9510993832,4cyclictest41-21ksoftirqd/322:16:583
9510993832,3cyclictest41-21ksoftirqd/322:30:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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