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2026-06-20 - 18:19
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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 Sat Jun 20, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
780521670,2sleep00-21swapper/011:45:220
789221510,6sleep0775799cyclictest07:10:130
2545521430,4sleep0775799cyclictest08:55:200
46521240,3sleep3776099cyclictest11:30:213
775899694,63cyclictest15552-21kworker/1:211:03:491
7757996634,4cyclictest9-21ksoftirqd/010:55:010
7757996531,5cyclictest9-21ksoftirqd/009:40:290
7757996524,6cyclictest9-21ksoftirqd/009:45:160
7757996431,6cyclictest9-21ksoftirqd/012:10:160
7757996430,5cyclictest9-21ksoftirqd/010:45:000
775899623,57cyclictest15552-21kworker/1:209:19:291
7757996223,5cyclictest9-21ksoftirqd/012:20:150
7758996110,29cyclictest20897-21missed_timers08:45:211
7757996132,4cyclictest9-21ksoftirqd/010:45:160
7757996128,4cyclictest9-21ksoftirqd/012:05:000
7757996030,3cyclictest9-21ksoftirqd/009:35:280
7757996028,5cyclictest9-21ksoftirqd/010:35:270
7757995931,3cyclictest9-21ksoftirqd/009:10:000
7757995928,6cyclictest9-21ksoftirqd/008:15:200
7757995924,4cyclictest9-21ksoftirqd/007:30:180
775799588,3cyclictest9-21ksoftirqd/007:50:000
7757995827,5cyclictest9-21ksoftirqd/011:05:180
7757995820,5cyclictest9-21ksoftirqd/010:50:140
134491580,4ptp4l0-21swapper/309:22:173
7757995729,6cyclictest9-21ksoftirqd/009:25:190
134491570,4ptp4l0-21swapper/208:40:482
134491570,4ptp4l0-21swapper/012:30:160
134491570,4ptp4l0-21swapper/007:35:250
7757995621,6cyclictest9-21ksoftirqd/011:40:170
134491560,4ptp4l0-21swapper/207:51:432
134491560,3ptp4l0-21swapper/207:10:112
134491560,3ptp4l0-21swapper/110:48:161
134491560,3ptp4l0-21swapper/110:05:241
134491560,3ptp4l0-21swapper/009:31:160
134491560,12ptp4l0-21swapper/211:45:252
775799554,7cyclictest9-21ksoftirqd/008:50:270
775799553,5cyclictest3513-21idleruntime-cro09:19:590
7757995510,2cyclictest22547-21tr10:00:130
134491550,4ptp4l0-21swapper/211:04:562
134491550,4ptp4l0-21swapper/208:55:452
134491550,4ptp4l0-21swapper/207:16:452
134491550,3ptp4l0-21swapper/312:06:243
134491550,3ptp4l0-21swapper/312:06:243
134491540,4ptp4l0-21swapper/211:56:482
134491540,3ptp4l0-21swapper/211:12:122
134491540,3ptp4l0-21swapper/209:34:322
134491540,3ptp4l0-21swapper/208:23:502
134491540,3ptp4l0-21swapper/110:16:311
134491540,3ptp4l0-21swapper/107:59:191
134491540,3ptp4l0-21swapper/107:35:231
775799534,4cyclictest29063-21uname10:15:000
775799533,5cyclictest9-21ksoftirqd/010:10:000
7757995324,5cyclictest9-21ksoftirqd/007:25:250
7757995315,6cyclictest9-21ksoftirqd/008:45:230
775799530,3cyclictest17444-21sendmail-msp08:40:000
134491530,4ptp4l0-21swapper/207:44:492
134491530,12ptp4l0-21swapper/209:55:002
134491530,11ptp4l5728-21df_inode07:05:151
775799527,2cyclictest4592-21irqrtprio10:30:180
775799524,5cyclictest937-21dump-pmu-power08:04:590
775799524,5cyclictest9-21ksoftirqd/010:25:190
775799522,3cyclictest0-21swapper/010:15:220
134491520,5ptp4l0-21swapper/208:15:192
134491520,4ptp4l0-21swapper/207:34:572
134491520,3ptp4l0-21swapper/210:51:462
134491520,3ptp4l0-21swapper/209:11:182
7757995141,3cyclictest9-21ksoftirqd/007:20:220
775799513,7cyclictest9-21ksoftirqd/011:00:270
775799513,5cyclictest11469-21df_abs11:55:140
775799512,6cyclictest9-21ksoftirqd/011:20:240
775799512,5cyclictest12207-21dump-pmu-power07:19:590
7757995122,3cyclictest9-21ksoftirqd/007:55:280
134491510,4ptp4l0-21swapper/008:33:000
134491510,3ptp4l0-21swapper/212:06:022
134491510,3ptp4l0-21swapper/212:06:012
134491510,2ptp4l0-21swapper/212:10:162
775799506,6cyclictest9-21ksoftirqd/008:10:240
775799504,5cyclictest9-21ksoftirqd/011:10:240
775799503,4cyclictest22054-21grep07:40:140
7757995018,5cyclictest9-21ksoftirqd/008:40:180
7757995015,5cyclictest9-21ksoftirqd/012:25:250
134491500,4ptp4l0-21swapper/312:36:133
134491500,3ptp4l0-21swapper/307:42:163
776099493,3cyclictest16367-21sed08:35:233
775799495,7cyclictest9-21ksoftirqd/010:20:160
775799495,4cyclictest9-21ksoftirqd/008:20:170
775799494,7cyclictest10891-21latency_hist11:55:000
775799493,9cyclictest0-21swapper/012:15:140
775799492,6cyclictest9-21ksoftirqd/012:35:240
775799492,6cyclictest9-21ksoftirqd/011:20:000
134491490,4ptp4l0-21swapper/310:31:553
134491490,4ptp4l0-21swapper/308:53:313
134491490,4ptp4l0-21swapper/211:43:422
134491490,4ptp4l0-21swapper/207:09:472
134491490,3ptp4l0-21swapper/308:30:213
134491490,3ptp4l0-21swapper/210:31:182
134491490,3ptp4l0-21swapper/209:19:052
7760994836,10cyclictest41-21ksoftirqd/310:20:173
775799485,5cyclictest9-21ksoftirqd/011:35:180
775799484,7cyclictest0-21swapper/008:05:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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