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2026-04-29 - 14:34
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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 Wed Apr 29, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
883639991510,0cyclictest0-21swapper/307:39:493
88363999140,12cyclictest0-21swapper/311:20:103
883639991310,1cyclictest0-21swapper/310:35:113
88363999130,12cyclictest0-21swapper/312:00:113
88363999129,1cyclictest0-21swapper/312:10:123
883639991210,1cyclictest929145-21chrt09:05:143
883639991210,1cyclictest0-21swapper/307:40:123
88363999120,11cyclictest0-21swapper/312:25:013
88363999120,11cyclictest0-21swapper/309:50:133
88363999120,11cyclictest0-21swapper/308:50:123
88363999120,11cyclictest0-21swapper/308:50:123
88363999120,10cyclictest0-21swapper/307:10:113
88363999116,1cyclictest0-21swapper/312:35:123
883639991111,0cyclictest0-21swapper/310:40:173
883639991111,0cyclictest0-21swapper/308:05:123
883639991110,0cyclictest0-21swapper/312:05:123
883639991110,0cyclictest0-21swapper/311:30:113
883639991110,0cyclictest0-21swapper/311:15:133
88363999110,10cyclictest0-21swapper/310:11:113
88363999110,0cyclictest0-21swapper/308:30:013
883639991010,0cyclictest0-21swapper/312:00:013
883639991010,0cyclictest0-21swapper/310:50:013
883639991010,0cyclictest0-21swapper/310:50:013
883639991010,0cyclictest0-21swapper/310:15:193
883639991010,0cyclictest0-21swapper/307:50:113
88363999100,9cyclictest0-21swapper/311:00:183
88363999100,10cyclictest0-21swapper/311:50:123
88363999100,10cyclictest0-21swapper/309:45:013
88363999100,0cyclictest0-21swapper/311:45:143
88363999100,0cyclictest0-21swapper/311:30:013
88363999100,0cyclictest0-21swapper/309:00:013
8836399999,0cyclictest0-21swapper/310:34:063
8836399999,0cyclictest0-21swapper/310:27:123
8836399999,0cyclictest0-21swapper/309:35:123
8836399999,0cyclictest0-21swapper/309:35:013
8836399999,0cyclictest0-21swapper/308:35:153
8836399999,0cyclictest0-21swapper/307:45:173
8836399999,0cyclictest0-21swapper/307:20:113
8836399998,0cyclictest0-21swapper/309:00:163
8836399990,8cyclictest0-21swapper/309:45:003
883425291,6sleep30-21swapper/307:09:073
8836399988,0cyclictest0-21swapper/312:18:193
8836399988,0cyclictest0-21swapper/311:40:033
8836399988,0cyclictest0-21swapper/311:37:153
8836399988,0cyclictest0-21swapper/309:15:163
8836399988,0cyclictest0-21swapper/308:20:153
8836399987,0cyclictest0-21swapper/310:20:253
8836399980,0cyclictest0-21swapper/307:15:193
8836399977,0cyclictest0-21swapper/312:30:123
8836399977,0cyclictest0-21swapper/311:10:013
8836399977,0cyclictest0-21swapper/309:55:203
8836399977,0cyclictest0-21swapper/308:15:173
8836399972,5cyclictest8929032sleep307:30:173
8836399970,6cyclictest0-21swapper/308:50:003
8836399970,0cyclictest0-21swapper/308:30:123
8836399966,0cyclictest0-21swapper/311:10:173
8836399966,0cyclictest0-21swapper/308:10:123
8836399960,5cyclictest0-21swapper/309:20:113
8836399955,0cyclictest0-21swapper/308:40:173
8836399955,0cyclictest0-21swapper/308:00:113
8836399954,0cyclictest0-21swapper/309:25:133
8836399950,4cyclictest0-21swapper/310:00:173
988301240,3sleep1988564-21/usr/sbin/munin11:25:131
8836399944,0cyclictest0-21swapper/310:55:153
8836399944,0cyclictest0-21swapper/307:25:173
8836399943,0cyclictest0-21swapper/312:25:313
8836399940,3cyclictest953667-21chrt10:05:013
8836399940,3cyclictest930621-21chrt09:10:023
8836399940,3cyclictest901865-21chrt07:55:013
883319242,1sleep20-21swapper/207:07:462
882567241,1sleep10-21swapper/107:05:211
992364230,1sleep0992390-21apt-get11:35:130
991324230,2sleep2991572-21vmstat11:30:192
978152230,1sleep1978278-21ntp_states11:00:161
969940230,2sleep2970190-21/usr/sbin/munin10:40:192
911479230,2sleep2911480-21/usr/sbin/munin08:20:102
881837231,1sleep00-21swapper/007:05:160
1014273230,2sleep21014431-21ls12:25:182
1006719230,1sleep21006737-21munin-run12:10:012
996260220,1sleep0996264-21ssh11:44:460
987421220,0sleep20-21swapper/211:20:212
980443220,1sleep00-21swapper/011:05:190
977660220,1sleep2977933-21df_inode11:00:132
977012220,0sleep00-21swapper/010:58:070
972737220,1sleep00-21swapper/010:49:250
970976220,1sleep2971023-21hostname10:45:122
962160220,0sleep00-21swapper/010:23:080
956996220,1sleep00-21swapper/010:10:200
950043220,1sleep1950215-21python309:55:201
939248220,1sleep00-21swapper/009:30:170
925730220,0sleep0925889-21switchtime08:55:190
918113220,1sleep0918291-21wc08:35:170
905476220,1sleep1905510-21munin-run08:05:011
885458220,1sleep0885903-21ntp_states07:15:000
1017351220,1sleep21017352-21sshd12:32:072
1014677220,1sleep11014769-21sort12:25:211
1013769220,0sleep00-21swapper/012:25:120
1006972220,1sleep11007004-21ssh12:10:121
1003241220,0sleep00-21swapper/012:00:150
999960210,0sleep00-21swapper/011:50:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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