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2026-07-22 - 18:22
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot2.osadl.org (updated Wed Jul 22, 2026 12:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
157682203189,10sleep10-21swapper/107:09:361
154822202185,12sleep30-21swapper/307:05:573
154492200167,28sleep00-21swapper/007:05:300
135742179163,12sleep20-21swapper/207:05:072
66102440,0sleep10-21swapper/111:50:151
26262440,0sleep30-21swapper/312:37:293
106262430,0sleep20-21swapper/209:41:172
35252370,0sleep10-21swapper/109:54:461
67352120,0sleep00-21swapper/010:45:090
9251290,0sleep10-21swapper/109:05:011
22779290,0sleep10-21swapper/110:36:171
159629980,2cyclictest0-21swapper/110:50:121
159619982,3cyclictest8994-21perf09:25:010
159629971,1cyclictest0-21swapper/109:20:131
159629971,1cyclictest0-21swapper/108:45:111
159629971,1cyclictest0-21swapper/108:15:111
159629971,1cyclictest0-21swapper/107:35:001
159629970,1cyclictest0-21swapper/109:30:021
30014260,4sleep340-21ksoftirqd/310:40:153
159709960,5cyclictest0-21swapper/309:55:123
159629961,1cyclictest0-21swapper/107:55:151
159629961,1cyclictest0-21swapper/107:29:591
159629960,1cyclictest0-21swapper/111:10:011
159629960,1cyclictest0-21swapper/110:35:001
159629960,1cyclictest0-21swapper/108:40:111
159629960,1cyclictest0-21swapper/108:10:011
159619962,4cyclictest6601-21munin-run09:40:010
26721250,1sleep1211ktimersoftd/111:27:251
159709955,0cyclictest30288-21kworker/3:012:14:423
159709955,0cyclictest30288-21kworker/3:010:11:363
159709955,0cyclictest0-21swapper/311:32:103
159709951,2cyclictest0-21swapper/310:15:123
159709950,5cyclictest0-21swapper/310:07:033
159709950,5cyclictest0-21swapper/309:43:113
159709950,5cyclictest0-21swapper/307:30:113
159709950,4cyclictest0-21swapper/308:25:113
159709950,0cyclictest0-21swapper/311:52:583
159709950,0cyclictest0-21swapper/311:05:153
159709950,0cyclictest0-21swapper/310:58:073
159669955,0cyclictest0-21swapper/212:17:152
159669954,1cyclictest19022-21tail09:45:212
159669950,5cyclictest10899-21/usr/sbin/munin10:30:192
159669950,5cyclictest0-21swapper/212:33:162
159669950,5cyclictest0-21swapper/210:55:172
159669950,4cyclictest22015-21/usr/sbin/munin07:20:122
159669950,4cyclictest0-21swapper/210:45:022
159629951,3cyclictest0-21swapper/107:50:121
159629951,2cyclictest0-21swapper/112:10:111
159629951,2cyclictest0-21swapper/109:45:121
159629951,2cyclictest0-21swapper/109:10:101
159629950,5cyclictest0-21swapper/107:40:251
159629950,1cyclictest3697-21chrt09:38:121
159629950,1cyclictest12751-21chrt11:36:331
159629950,1cyclictest10595-21chrt10:46:261
159629950,1cyclictest0-21swapper/110:00:131
159619950,5cyclictest0-21swapper/011:50:510
159619950,5cyclictest0-21swapper/010:25:120
159619950,5cyclictest0-21swapper/010:00:130
159619950,5cyclictest0-21swapper/009:58:480
159619950,0cyclictest0-21swapper/010:43:380
24993240,0sleep20-21swapper/209:15:562
159709944,0cyclictest30288-21kworker/3:009:15:363
159709944,0cyclictest30288-21kworker/3:007:23:403
159709944,0cyclictest0-21swapper/312:08:503
159709944,0cyclictest0-21swapper/312:00:323
159709943,1cyclictest9253-21date09:05:003
159709943,1cyclictest29739-21grep11:45:153
159709943,1cyclictest20116-21tune2fs08:20:143
159709942,1cyclictest9974-21ssh11:35:153
159709942,1cyclictest26109-21ssh12:16:103
159709942,1cyclictest19290-21users07:15:013
159709942,1cyclictest11243-21ssh11:20:003
159709941,3cyclictest0-21swapper/309:39:103
159709941,2cyclictest0-21swapper/312:30:113
159709941,2cyclictest0-21swapper/311:55:133
159709941,2cyclictest0-21swapper/311:00:133
159709940,4cyclictest7542-21perl10:45:143
159709940,4cyclictest11594-21diskmemload12:22:393
159709940,4cyclictest0-21swapper/312:25:063
159709940,4cyclictest0-21swapper/311:15:113
159709940,4cyclictest0-21swapper/311:10:013
159709940,4cyclictest0-21swapper/310:35:123
159709940,4cyclictest0-21swapper/309:30:053
159709940,4cyclictest0-21swapper/309:27:483
159709940,4cyclictest0-21swapper/307:40:133
159709940,4cyclictest0-21swapper/307:10:113
159709940,3cyclictest9102-21sed09:25:013
159709940,3cyclictest4435-21/usr/sbin/munin07:50:213
159709940,3cyclictest24964-21df08:30:133
159709940,3cyclictest2438-21sh08:50:113
159709940,3cyclictest15836-21ntp_states10:00:183
159709940,3cyclictest12794-21ssh09:10:133
159709940,3cyclictest0-21swapper/310:50:113
159709940,3cyclictest0-21swapper/309:45:023
159709940,1cyclictest22837-21ntp_states11:25:183
159669944,0cyclictest0-21swapper/212:36:362
159669944,0cyclictest0-21swapper/212:21:542
159669944,0cyclictest0-21swapper/208:15:252
159669943,1cyclictest19833-21cat09:30:142
159669943,1cyclictest13202-21grep08:05:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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