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2026-06-22 - 15:14
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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 rack1slot3.osadl.org (updated Mon Jun 22, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
379177991411,1cyclictest0-21swapper/309:30:103
37917799139,2cyclictest0-21swapper/312:15:123
37917799130,12cyclictest0-21swapper/311:15:123
379177991211,0cyclictest0-21swapper/312:35:103
379177991211,0cyclictest0-21swapper/311:45:123
37917799120,11cyclictest0-21swapper/312:10:173
37917799120,11cyclictest0-21swapper/310:50:173
37917799120,11cyclictest0-21swapper/310:25:123
37917799120,11cyclictest0-21swapper/308:40:123
37917799120,11cyclictest0-21swapper/308:05:133
37917799120,11cyclictest0-21swapper/307:45:123
37917799120,11cyclictest0-21swapper/307:40:103
37917799120,11cyclictest0-21swapper/307:20:013
37917799119,1cyclictest0-21swapper/311:40:123
37917799119,1cyclictest0-21swapper/308:55:123
37917799119,1cyclictest0-21swapper/308:00:133
379177991111,0cyclictest0-21swapper/308:10:193
379177991110,0cyclictest0-21swapper/309:00:133
37917799110,10cyclictest0-21swapper/311:55:133
37917799110,10cyclictest0-21swapper/311:20:093
37917799110,10cyclictest0-21swapper/311:05:023
37917799110,10cyclictest0-21swapper/310:35:183
37917799110,10cyclictest0-21swapper/310:15:173
37917799110,10cyclictest0-21swapper/307:15:173
37917799110,0cyclictest0-21swapper/309:45:113
37917799110,0cyclictest0-21swapper/309:20:113
37917799109,0cyclictest0-21swapper/310:45:183
379177991010,0cyclictest0-21swapper/312:05:143
379177991010,0cyclictest0-21swapper/310:59:413
379177991010,0cyclictest0-21swapper/309:35:183
379177991010,0cyclictest0-21swapper/307:35:383
37917799100,9cyclictest0-21swapper/310:05:123
37917799100,9cyclictest0-21swapper/307:55:013
37917799100,9cyclictest0-21swapper/307:15:013
37917799100,0cyclictest0-21swapper/312:25:113
3791779999,0cyclictest0-21swapper/311:05:183
3791779998,0cyclictest0-21swapper/309:30:013
3791779997,1cyclictest0-21swapper/308:15:113
3791779990,8cyclictest0-21swapper/308:45:183
3791779990,8cyclictest0-21swapper/308:20:163
3791779990,0cyclictest0-21swapper/311:10:183
3791779988,0cyclictest0-21swapper/310:00:173
3791779988,0cyclictest0-21swapper/309:42:563
3791779988,0cyclictest0-21swapper/309:10:133
3791779988,0cyclictest0-21swapper/307:55:133
3791779981,6cyclictest457650-21taskset10:22:053
3791779980,8cyclictest0-21swapper/311:50:123
3791779980,7cyclictest0-21swapper/309:15:183
3791779980,6cyclictest0-21swapper/307:35:003
3791779980,0cyclictest0-21swapper/310:40:013
3791779977,0cyclictest0-21swapper/310:30:153
3791779977,0cyclictest0-21swapper/310:10:173
3791779972,4cyclictest0-21swapper/312:01:083
3791779970,0cyclictest0-21swapper/311:27:023
377575271,4sleep30-21swapper/307:05:123
451396260,0sleep20-21swapper/210:07:162
3791779966,0cyclictest0-21swapper/312:20:123
3791779966,0cyclictest0-21swapper/309:55:093
3791779965,0cyclictest0-21swapper/312:33:533
3791779965,0cyclictest0-21swapper/311:35:143
3791779965,0cyclictest0-21swapper/308:25:193
3791779963,2cyclictest0-21swapper/311:30:133
3791779961,2cyclictest0-21swapper/309:50:123
3791779960,5cyclictest0-21swapper/309:05:123
378792262,2sleep20-21swapper/207:06:392
502463250,3sleep0502747-21df12:10:140
480804250,0sleep20-21swapper/211:16:362
3791779954,0cyclictest0-21swapper/308:30:123
484517240,3sleep0484753-21awk11:25:190
401380242,1sleep0399255-21kworker/0:0+events08:05:140
3791779943,0cyclictest0-21swapper/307:25:133
3791779940,0cyclictest0-21swapper/308:50:113
3791779940,0cyclictest0-21swapper/308:35:123
378761242,1sleep10-21swapper/107:06:141
455510232,1sleep0399255-21kworker/0:0+events10:16:450
452407230,2sleep2452517-21wc10:10:152
423301230,2sleep1423388-21aten2.4-expect09:00:151
419120230,2sleep0419179-21cut08:50:010
407348230,1sleep2407363-21apt-get08:20:012
377173231,1sleep00-21swapper/007:05:010
504533220,1sleep0504828-21df12:15:130
501629220,1sleep2501633-21ssh12:06:032
498784220,1sleep0498934-21ntp_states12:00:160
497777220,0sleep20-21swapper/211:59:032
495617220,1sleep00-21swapper/011:53:200
488760220,1sleep2489007-21/usr/sbin/munin11:35:202
474943220,1sleep0474959-21munin-run11:05:020
472748220,0sleep00-21swapper/010:59:120
468675220,1sleep1468748-21cut10:50:021
466422220,0sleep00-21swapper/010:43:310
461692220,0sleep00-21swapper/010:30:580
459538220,0sleep00-21swapper/010:25:230
447526220,1sleep0447713-21cat10:00:010
445180220,1sleep00-21swapper/009:52:400
439957220,1sleep0440071-21memory09:40:160
436003220,1sleep0436158-21cat09:30:150
435512220,1sleep1435807-21df09:30:111
433109220,1sleep20-21swapper/209:25:002
429293220,1sleep2429319-21apt-get09:15:122
425179220,1sleep0425352-21awk09:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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