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2026-09-06 - 17:05
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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 Sun Sep 06, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311021560,6sleep02216699cyclictest12:15:190
2145121530,6sleep22216899cyclictest08:15:282
1174021420,6sleep12216799cyclictest12:35:181
1174021420,6sleep12216799cyclictest12:35:181
134491710,3ptp4l22309-21apt-get09:30:123
307712700,5sleep10-21swapper/109:45:241
22168996933,4cyclictest33-21ksoftirqd/207:40:282
22168996533,9cyclictest33-21ksoftirqd/210:50:012
22168996425,6cyclictest33-21ksoftirqd/211:00:282
2216899642,34cyclictest0-21swapper/212:39:562
2216899642,34cyclictest0-21swapper/212:39:562
2216899642,34cyclictest0-21swapper/208:20:102
2216899642,33cyclictest0-21swapper/210:04:362
134491640,4ptp4l0-21swapper/010:19:090
22168996331,4cyclictest33-21ksoftirqd/209:45:202
22168996331,10cyclictest33-21ksoftirqd/207:25:012
2216899632,34cyclictest0-21swapper/211:45:232
2216899632,34cyclictest0-21swapper/211:43:092
2216899632,32cyclictest0-21swapper/207:55:162
22168996231,5cyclictest33-21ksoftirqd/208:00:242
22168996229,4cyclictest33-21ksoftirqd/209:10:262
22168996226,8cyclictest33-21ksoftirqd/210:30:282
22168996224,4cyclictest33-21ksoftirqd/211:25:222
22168996224,4cyclictest33-21ksoftirqd/211:25:222
22168996223,7cyclictest33-21ksoftirqd/207:46:012
2216899622,31cyclictest0-21swapper/209:55:222
22168996129,6cyclictest33-21ksoftirqd/207:30:132
22168996129,6cyclictest33-21ksoftirqd/207:30:132
2216899612,33cyclictest0-21swapper/208:50:232
22168996029,6cyclictest33-21ksoftirqd/208:40:192
22168996025,3cyclictest33-21ksoftirqd/209:15:152
2216899602,31cyclictest0-21swapper/210:20:142
22168996022,10cyclictest33-21ksoftirqd/212:15:242
22168995926,6cyclictest33-21ksoftirqd/211:35:212
22168995925,6cyclictest33-21ksoftirqd/207:15:272
22168995925,3cyclictest33-21ksoftirqd/210:39:292
22168995924,5cyclictest33-21ksoftirqd/210:55:162
2216899592,32cyclictest0-21swapper/207:10:092
22168995829,6cyclictest33-21ksoftirqd/211:15:152
22168995826,7cyclictest33-21ksoftirqd/207:25:242
22168995821,5cyclictest33-21ksoftirqd/211:20:172
2216899580,5cyclictest33-21ksoftirqd/209:55:012
134491580,4ptp4l0-21swapper/207:50:152
2216899572,37cyclictest0-21swapper/212:10:152
134491570,4ptp4l0-21swapper/007:41:450
134491570,3ptp4l0-21swapper/309:15:253
134491570,3ptp4l0-21swapper/210:25:202
134491570,16ptp4l0-21swapper/311:15:213
2216899562,35cyclictest0-21swapper/210:40:152
2216899562,22cyclictest0-21swapper/212:01:252
134491560,4ptp4l0-21swapper/107:24:291
22168995527,7cyclictest33-21ksoftirqd/211:50:132
22168995521,4cyclictest33-21ksoftirqd/211:55:272
2216899545,6cyclictest33-21ksoftirqd/209:40:002
2216899543,9cyclictest33-21ksoftirqd/209:25:142
134491540,19ptp4l0-21swapper/011:58:280
2216899533,6cyclictest33-21ksoftirqd/208:10:152
22168995321,7cyclictest33-21ksoftirqd/210:10:032
22168995321,7cyclictest33-21ksoftirqd/210:10:032
134491530,4ptp4l0-21swapper/310:45:353
134491530,4ptp4l0-21swapper/108:13:391
134491530,4ptp4l0-21swapper/009:22:220
2216899526,7cyclictest33-21ksoftirqd/208:55:182
2216899525,11cyclictest33-21ksoftirqd/211:05:212
2216899522,6cyclictest33-21ksoftirqd/212:30:002
134491520,5ptp4l0-21swapper/207:09:302
134491520,4ptp4l0-21swapper/310:04:293
134491520,13ptp4l20265-21hddtemp_smartct07:05:151
2216899513,7cyclictest0-21swapper/209:40:132
2216899512,8cyclictest0-21swapper/209:05:142
22168995117,7cyclictest33-21ksoftirqd/212:22:502
2216899505,3cyclictest33-21ksoftirqd/211:10:222
2216899504,3cyclictest33-21ksoftirqd/210:15:212
134491500,4ptp4l0-21swapper/311:50:563
134491500,4ptp4l0-21swapper/310:24:303
134491500,4ptp4l0-21swapper/308:20:013
134491500,4ptp4l0-21swapper/210:05:592
134491500,4ptp4l0-21swapper/011:43:250
134491500,4ptp4l0-21swapper/008:41:040
134491500,4ptp4l0-21swapper/008:30:540
134491500,10ptp4l20947-21ntp_states07:05:213
2216899494,4cyclictest33-21ksoftirqd/208:30:132
2216899493,2cyclictest121rcu_preempt11:33:322
2216899493,2cyclictest121rcu_preempt11:33:322
2216899492,6cyclictest0-21swapper/209:30:272
2216899492,5cyclictest33-21ksoftirqd/212:05:232
2216899491,7cyclictest0-21swapper/210:50:152
134491490,4ptp4l0-21swapper/309:01:273
134491490,4ptp4l0-21swapper/308:09:583
134491490,4ptp4l0-21swapper/307:59:513
134491490,4ptp4l0-21swapper/107:31:321
134491490,4ptp4l0-21swapper/107:31:311
134491490,4ptp4l0-21swapper/010:07:190
2216899485,8cyclictest33-21ksoftirqd/208:05:172
22168994839,3cyclictest33-21ksoftirqd/209:05:002
2216899482,30cyclictest0-21swapper/208:35:172
134491480,4ptp4l0-21swapper/308:43:443
134491480,4ptp4l0-21swapper/010:03:280
134491480,4ptp4l0-21swapper/009:50:060
134491480,3ptp4l0-21swapper/308:36:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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