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2026-07-03 - 11:54
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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 Jul 03, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591206171,23phc2sys0-21swapper/319:05:593
136302204171,21sleep20-21swapper/219:09:282
136292204171,22sleep10-21swapper/119:09:271
135932203169,22sleep00-21swapper/019:08:580
2430721210,2sleep10-21swapper/119:30:121
138491660,1ptp4l9377-21cstates22:15:143
219402590,2sleep10-21swapper/123:45:191
1396799590,19cyclictest23877-21latency_hist19:30:003
154772550,1sleep20-21swapper/221:20:252
1396699540,16cyclictest6679-21acpi21:05:112
1396499535,9cyclictest9-21ksoftirqd/023:25:140
264252510,2sleep30-21swapper/319:35:003
1396599511,10cyclictest10714-21ls21:10:251
1396499513,6cyclictest9-21ksoftirqd/020:55:000
1396499513,6cyclictest9-21ksoftirqd/020:20:130
1396799500,11cyclictest21568-21/usr/sbin/munin20:30:133
1396499509,6cyclictest9-21ksoftirqd/021:35:220
1396499505,8cyclictest9-21ksoftirqd/022:10:110
1396499505,8cyclictest9-21ksoftirqd/019:25:240
1396499493,6cyclictest9-21ksoftirqd/022:35:160
1396499493,6cyclictest9-21ksoftirqd/000:00:130
1396499493,5cyclictest9-21ksoftirqd/020:05:260
1396599480,3cyclictest21223-21taskset19:23:241
1396499484,7cyclictest9-21ksoftirqd/023:40:230
1396499484,7cyclictest9-21ksoftirqd/023:40:230
1396499483,5cyclictest9-21ksoftirqd/021:15:140
1396499482,8cyclictest9-21ksoftirqd/019:55:230
1396499482,6cyclictest9-21ksoftirqd/022:40:140
1396499482,6cyclictest101ktimersoftd/020:35:280
1396599471,23cyclictest11105-21taskset20:06:061
1396499474,5cyclictest9-21ksoftirqd/000:25:010
1396499472,5cyclictest9-21ksoftirqd/022:05:130
1396499470,6cyclictest101ktimersoftd/023:40:000
1396799460,15cyclictest30768-21ssh20:45:253
13966994634,3cyclictest33-21ksoftirqd/220:15:002
1396599461,3cyclictest10911-21taskset22:15:391
1396599461,21cyclictest3457-21taskset23:05:331
1396499463,5cyclictest9-21ksoftirqd/020:30:150
1396499462,6cyclictest9-21ksoftirqd/000:30:000
1396499462,5cyclictest9-21ksoftirqd/021:45:180
13966994540,3cyclictest33-21ksoftirqd/221:55:002
1396599450,22cyclictest3612-21taskset22:01:301
1396499452,6cyclictest9-21ksoftirqd/022:45:140
1396499451,5cyclictest9-21ksoftirqd/023:00:280
1396799441,5cyclictest0-21swapper/320:00:243
1396799440,11cyclictest1767-21apt-get19:50:123
13965994410,17cyclictest211002chrt22:37:151
1396599440,22cyclictest16020-21taskset23:33:451
1396599440,21cyclictest31102-21taskset22:58:311
1396499444,9cyclictest9-21ksoftirqd/021:00:180
1396499442,5cyclictest9-21ksoftirqd/020:45:230
1396499442,5cyclictest9-21ksoftirqd/020:30:010
1396499442,5cyclictest9-21ksoftirqd/000:15:140
1396599439,25cyclictest1303-21runrttasks00:27:111
13965994310,19cyclictest25079-21seq21:40:211
1396599430,3cyclictest8601-21taskset22:12:301
1396599430,3cyclictest30905-21taskset00:01:531
1396599430,22cyclictest18713-21taskset21:29:411
1396499433,5cyclictest9-21ksoftirqd/021:55:010
1396499432,9cyclictest9-21ksoftirqd/020:00:250
1396499432,8cyclictest9-21ksoftirqd/019:39:590
138491430,35ptp4l0-21swapper/319:10:003
138491430,0ptp4l401ktimersoftd/321:51:413
138491430,0ptp4l401ktimersoftd/321:45:473
138491430,0ptp4l401ktimersoftd/320:08:153
1396799426,5cyclictest41-21ksoftirqd/320:43:203
1396599421,18cyclictest1013-21apache200:32:511
13964994238,2cyclictest111rcuc/019:50:170
1396499423,6cyclictest9-21ksoftirqd/021:25:130
1396499423,6cyclictest9-21ksoftirqd/019:10:140
1396499423,5cyclictest9-21ksoftirqd/021:20:180
1396499423,4cyclictest9-21ksoftirqd/021:40:250
1396499422,8cyclictest9-21ksoftirqd/021:55:170
1396499422,6cyclictest9-21ksoftirqd/023:10:120
1396499422,5cyclictest9-21ksoftirqd/019:40:160
138491420,0ptp4l401ktimersoftd/322:24:023
138491420,0ptp4l401ktimersoftd/321:10:283
138491420,0ptp4l401ktimersoftd/321:01:063
13966994136,3cyclictest33-21ksoftirqd/223:25:012
13966994136,3cyclictest33-21ksoftirqd/220:35:002
13966994135,3cyclictest33-21ksoftirqd/221:00:002
1396499412,9cyclictest9-21ksoftirqd/019:15:190
1396499410,10cyclictest9-21ksoftirqd/000:08:310
138491410,0ptp4l401ktimersoftd/321:05:273
13966994035,3cyclictest33-21ksoftirqd/220:45:012
1396599400,26cyclictest975-21chrt21:58:071
1396599400,1cyclictest0-21swapper/121:03:081
1396499403,6cyclictest9-21ksoftirqd/000:10:150
1396499403,6cyclictest9-21ksoftirqd/000:10:150
1396499402,5cyclictest9-21ksoftirqd/022:55:230
1396499400,6cyclictest101ktimersoftd/021:30:140
138491400,0ptp4l401ktimersoftd/300:08:063
1396799397,5cyclictest41-21ksoftirqd/323:11:553
13966993934,3cyclictest33-21ksoftirqd/221:30:002
13966993933,3cyclictest33-21ksoftirqd/200:20:012
13966993929,7cyclictest33-21ksoftirqd/222:00:132
1396499395,7cyclictest9-21ksoftirqd/000:30:170
1396499393,8cyclictest9-21ksoftirqd/023:50:190
1396499393,6cyclictest9-21ksoftirqd/022:20:140
1396499393,5cyclictest9-21ksoftirqd/022:54:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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