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2026-05-15 - 05:54
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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 Fri May 15, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591212167,33phc2sys0-21swapper/319:06:453
34582206172,22sleep10-21swapper/119:06:091
34722200166,22sleep00-21swapper/019:06:210
34542200166,23sleep20-21swapper/219:06:072
405899680,30cyclictest31703-21cut23:20:181
405899660,24cyclictest8705-21appstreamcli23:40:011
405899630,21cyclictest27964-21mailstats19:55:241
405899620,22cyclictest8994-21latency_hist19:20:011
138491610,1ptp4l401ktimersoftd/319:25:293
114382600,2sleep00-21swapper/023:45:140
138491590,9ptp4l0-21swapper/321:15:453
138491590,1ptp4l391rcuc/323:40:263
39102550,2sleep10-21swapper/122:25:111
138491550,1ptp4l401ktimersoftd/300:11:493
405899540,22cyclictest3241-21timerwakeupswit20:10:241
138491540,1ptp4l401ktimersoftd/300:20:463
134991540,1getstats0-21swapper/322:55:333
123932540,1sleep10-21swapper/121:35:211
92922530,2sleep10-21swapper/122:35:191
278452520,2sleep00-21swapper/019:55:220
4059995117,6cyclictest33-21ksoftirqd/223:40:282
4059995117,6cyclictest33-21ksoftirqd/223:05:272
4059995115,5cyclictest33-21ksoftirqd/223:35:252
4059995021,7cyclictest33-21ksoftirqd/200:15:002
4059994917,4cyclictest33-21ksoftirqd/222:10:002
4059994821,3cyclictest33-21ksoftirqd/200:20:232
4059994816,6cyclictest33-21ksoftirqd/219:55:212
4057994811,28cyclictest25658-21seq00:11:250
211742480,1sleep00-21swapper/000:05:150
4059994740,4cyclictest13529-21cron21:39:592
4059994725,3cyclictest33-21ksoftirqd/219:20:242
4059994721,7cyclictest33-21ksoftirqd/221:25:012
4059994718,10cyclictest33-21ksoftirqd/223:20:132
4059994716,7cyclictest33-21ksoftirqd/220:30:002
4059994713,4cyclictest33-21ksoftirqd/219:15:012
4059994622,8cyclictest33-21ksoftirqd/200:05:212
4059994619,6cyclictest33-21ksoftirqd/223:10:182
4059994613,6cyclictest33-21ksoftirqd/220:40:252
4059994612,4cyclictest33-21ksoftirqd/219:50:262
4059994518,6cyclictest33-21ksoftirqd/222:20:152
4059994518,4cyclictest33-21ksoftirqd/223:35:002
4059994515,4cyclictest33-21ksoftirqd/223:00:172
405899450,29cyclictest3185-21gpgv23:30:001
405999448,10cyclictest33-21ksoftirqd/223:15:142
4059994438,3cyclictest33-21ksoftirqd/221:25:102
4059994416,7cyclictest33-21ksoftirqd/222:25:112
4059994414,7cyclictest33-21ksoftirqd/200:20:012
4059994412,6cyclictest33-21ksoftirqd/219:30:232
4059994410,6cyclictest33-21ksoftirqd/222:45:002
405999440,3cyclictest121rcu_preempt22:50:012
405999437,4cyclictest33-21ksoftirqd/220:20:232
4059994318,6cyclictest33-21ksoftirqd/222:50:192
4059994315,7cyclictest33-21ksoftirqd/220:30:172
138491430,0ptp4l401ktimersoftd/300:09:013
405999423,6cyclictest33-21ksoftirqd/222:35:142
4059994230,9cyclictest33-21ksoftirqd/221:00:182
4059994217,6cyclictest33-21ksoftirqd/222:35:002
4059994214,7cyclictest33-21ksoftirqd/220:50:242
4059994214,7cyclictest33-21ksoftirqd/219:20:002
138491420,0ptp4l401ktimersoftd/323:47:303
405999419,6cyclictest33-21ksoftirqd/221:45:002
405999415,6cyclictest33-21ksoftirqd/221:50:282
4059994117,6cyclictest33-21ksoftirqd/221:00:002
4059994114,4cyclictest33-21ksoftirqd/221:10:272
4059994113,6cyclictest33-21ksoftirqd/200:30:192
138491410,0ptp4l401ktimersoftd/321:30:353
138491410,0ptp4l401ktimersoftd/321:07:413
405999408,6cyclictest33-21ksoftirqd/222:55:232
405999404,6cyclictest33-21ksoftirqd/221:45:142
4059994012,7cyclictest33-21ksoftirqd/223:50:272
4059994012,7cyclictest33-21ksoftirqd/223:50:272
138491400,1ptp4l401ktimersoftd/320:34:523
405999397,5cyclictest33-21ksoftirqd/220:00:132
405999396,4cyclictest33-21ksoftirqd/222:15:132
4059993934,3cyclictest33-21ksoftirqd/220:10:012
4059993929,8cyclictest33-21ksoftirqd/222:00:172
4059993929,2cyclictest33-21ksoftirqd/200:25:142
4059993927,10cyclictest33-21ksoftirqd/219:25:222
4059993913,7cyclictest33-21ksoftirqd/219:45:152
4059993913,4cyclictest33-21ksoftirqd/223:25:262
4059993911,4cyclictest33-21ksoftirqd/221:15:162
138491390,1ptp4l401ktimersoftd/320:14:533
405999388,4cyclictest33-21ksoftirqd/220:35:262
405999385,7cyclictest33-21ksoftirqd/220:10:182
4059993833,3cyclictest33-21ksoftirqd/219:45:002
4059993833,3cyclictest33-21ksoftirqd/200:00:002
4059993832,3cyclictest33-21ksoftirqd/220:15:122
4059993832,3cyclictest33-21ksoftirqd/220:15:122
4059993831,4cyclictest33-21ksoftirqd/219:37:442
138491380,0ptp4l401ktimersoftd/300:34:063
134991380,7getstats406099cyclictest22:35:073
405999376,3cyclictest33-21ksoftirqd/222:10:192
405999375,4cyclictest33-21ksoftirqd/221:30:132
4059993732,3cyclictest33-21ksoftirqd/221:55:172
4059993732,3cyclictest33-21ksoftirqd/220:45:132
4059993731,3cyclictest33-21ksoftirqd/200:35:162
4058993730,4cyclictest25-21ksoftirqd/121:46:121
4057993731,4cyclictest9-21ksoftirqd/020:47:220
4057993731,4cyclictest9-21ksoftirqd/019:53:060
4057993710,24cyclictest10950-21dump-pmu-power23:45:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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