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2026-05-18 - 10:41
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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 highest latencies:
System rack5slot2.osadl.org (updated Mon May 18, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
183702198184,10sleep10-21swapper/119:10:001
181502187168,13sleep00-21swapper/019:07:100
180342182164,13sleep30-21swapper/319:05:413
161512167151,12sleep20-21swapper/219:05:072
222132400,0sleep10-21swapper/122:00:181
245412380,0sleep10-21swapper/122:49:301
206972110,0sleep20-21swapper/222:15:202
302402100,0sleep10-21swapper/123:07:431
185349971,5cyclictest61-21kswapd023:45:130
9835260,0sleep20-21swapper/200:17:262
3028260,0sleep00-21swapper/023:58:150
185349964,1cyclictest17537-21ssh22:30:130
185349960,3cyclictest11311-21perf21:40:010
3099250,0sleep20-21swapper/200:30:152
185459951,3cyclictest0-21swapper/322:55:023
185459951,3cyclictest0-21swapper/322:15:133
185459950,5cyclictest0-21swapper/321:25:443
185459950,1cyclictest19908-21diskstats20:15:143
185459950,0cyclictest0-21swapper/323:11:313
185409953,2cyclictest2827-21kworker/2:123:39:052
185409953,2cyclictest21172-21kworker/2:022:44:172
185409951,2cyclictest0-21swapper/219:30:112
185409950,5cyclictest0-21swapper/223:07:482
185409950,5cyclictest0-21swapper/222:55:012
185409950,5cyclictest0-21swapper/200:08:142
185359951,2cyclictest0-21swapper/100:35:111
185359950,5cyclictest0-21swapper/122:40:491
185349953,1cyclictest19145-21latency_hist20:15:000
185349950,5cyclictest0-21swapper/021:42:420
185349950,5cyclictest0-21swapper/021:14:450
185349950,5cyclictest0-21swapper/020:20:020
185349950,0cyclictest24952-21ssh23:20:370
185349950,0cyclictest0-21swapper/023:27:180
14242250,4sleep014270-21ssh22:28:280
185459944,0cyclictest673-21kworker/3:021:45:083
185459944,0cyclictest673-21kworker/3:021:00:213
185459944,0cyclictest673-21kworker/3:020:04:233
185459944,0cyclictest0-21swapper/321:55:083
185459940,4cyclictest14364-21diskmemload23:50:533
185459940,4cyclictest12106-21apt-get21:05:023
185459940,4cyclictest0-21swapper/323:58:363
185459940,4cyclictest0-21swapper/323:43:033
185459940,4cyclictest0-21swapper/323:35:013
185459940,4cyclictest0-21swapper/323:30:043
185459940,4cyclictest0-21swapper/323:25:113
185459940,4cyclictest0-21swapper/323:05:063
185459940,4cyclictest0-21swapper/323:04:093
185459940,4cyclictest0-21swapper/322:41:313
185459940,4cyclictest0-21swapper/322:38:193
185459940,4cyclictest0-21swapper/322:30:423
185459940,4cyclictest0-21swapper/322:05:123
185459940,4cyclictest0-21swapper/322:03:423
185459940,4cyclictest0-21swapper/321:41:103
185459940,4cyclictest0-21swapper/321:31:033
185459940,4cyclictest0-21swapper/321:20:023
185459940,4cyclictest0-21swapper/321:10:133
185459940,4cyclictest0-21swapper/320:50:113
185459940,4cyclictest0-21swapper/319:45:123
185459940,4cyclictest0-21swapper/319:15:143
185459940,4cyclictest0-21swapper/300:38:533
185459940,4cyclictest0-21swapper/300:33:413
185459940,4cyclictest0-21swapper/300:21:233
185459940,4cyclictest0-21swapper/300:18:273
185459940,4cyclictest0-21swapper/300:10:123
185459940,4cyclictest0-21swapper/300:08:043
185459940,4cyclictest0-21swapper/300:01:013
185459940,3cyclictest4255-21cut20:50:003
185459940,3cyclictest30021-21cat19:30:133
185459940,3cyclictest26812-21apt-get20:30:123
185459940,3cyclictest26632-21chrt19:22:463
185459940,3cyclictest26475-21df_inode22:50:133
185459940,3cyclictest26433-21irqstats21:15:203
185459940,3cyclictest24322-21ssh00:25:003
185459940,3cyclictest23042-21diskstats23:20:143
185459940,3cyclictest1707-21ssh21:35:143
185459940,3cyclictest1690-21ssh21:50:203
185459940,3cyclictest15472-21ssh22:45:043
185459940,3cyclictest14364-21diskmemload23:15:593
185459940,3cyclictest14364-21diskmemload22:25:043
185459940,2cyclictest0-21swapper/323:47:423
185409944,0cyclictest31-21ksoftirqd/223:55:002
185409944,0cyclictest31-21ksoftirqd/223:15:002
185409944,0cyclictest0-21swapper/222:24:472
185409943,1cyclictest5070-21grep20:50:142
185409943,1cyclictest31-21ksoftirqd/223:15:122
185409943,1cyclictest26660-21/usr/sbin/munin00:10:142
185409941,3cyclictest802-21snmpd23:26:152
185409941,2cyclictest0-21swapper/222:50:112
185409941,2cyclictest0-21swapper/222:00:122
185409941,2cyclictest0-21swapper/220:00:112
185409941,1cyclictest0-21swapper/222:35:092
185409940,4cyclictest5803-21ntp_states19:45:192
185409940,4cyclictest10238-21apt-get21:55:022
185409940,4cyclictest0-21swapper/223:55:092
185409940,4cyclictest0-21swapper/223:30:112
185409940,4cyclictest0-21swapper/222:30:132
185409940,4cyclictest0-21swapper/222:05:122
185409940,4cyclictest0-21swapper/221:45:382
185409940,4cyclictest0-21swapper/221:32:222
185409940,4cyclictest0-21swapper/221:22:342
185409940,4cyclictest0-21swapper/221:17:022
185409940,4cyclictest0-21swapper/220:45:122
185409940,4cyclictest0-21swapper/220:25:112
185409940,4cyclictest0-21swapper/220:05:132
185409940,4cyclictest0-21swapper/200:35:112
185409940,3cyclictest25761-21ssh23:21:072
185409940,3cyclictest24585-21/usr/sbin/munin00:25:132
185409940,3cyclictest23655-21/usr/sbin/munin19:15:222
185409940,3cyclictest12838-21sh23:46:482
185409940,3cyclictest10230-21runrttasks22:10:182
185409940,3cyclictest0-21swapper/221:50:132
185409940,2cyclictest0-21swapper/221:44:302
185409940,1cyclictest7119-21/usr/sbin/munin22:25:162
185409940,1cyclictest6395-21/usr/sbin/munin00:00:132
185409940,1cyclictest31994-21/usr/sbin/munin19:35:192
185409940,1cyclictest26809-21/usr/sbin/munin20:30:152
185409940,1cyclictest2111-21expr21:35:142
185409940,1cyclictest18656-21/usr/sbin/munin19:10:172
185409940,1cyclictest16898-21/usr/sbin/munin20:10:152
185409940,1cyclictest15751-21grep22:45:122
185409940,1cyclictest14895-21/usr/sbin/munin21:10:162
185409940,1cyclictest14559-21cut00:20:122
185409940,1cyclictest0-21swapper/223:40:142
185359944,0cyclictest0-21swapper/122:29:361
185359944,0cyclictest0-21swapper/100:18:351
185359941,2cyclictest0-21swapper/123:15:121
185359941,2cyclictest0-21swapper/122:55:111
185359941,2cyclictest0-21swapper/122:10:121
185359941,2cyclictest0-21swapper/120:30:121
185359941,2cyclictest0-21swapper/120:10:111
185359941,2cyclictest0-21swapper/100:30:131
185359941,1cyclictest0-21swapper/122:20:131
185359941,1cyclictest0-21swapper/121:20:131
185359941,1cyclictest0-21swapper/100:10:121
185359940,4cyclictest0-21swapper/121:45:571
185359940,3cyclictest0-21swapper/122:35:091
185359940,0cyclictest0-21swapper/123:47:091
185359940,0cyclictest0-21swapper/123:41:121
185359940,0cyclictest0-21swapper/123:35:141
185359940,0cyclictest0-21swapper/123:22:341
185359940,0cyclictest0-21swapper/122:05:101
185349944,0cyclictest3-21ksoftirqd/021:05:010
185349944,0cyclictest0-21swapper/022:48:360
185349944,0cyclictest0-21swapper/022:15:080
185349944,0cyclictest0-21swapper/000:32:120
185349942,2cyclictest8080-21kworker/0:019:25:130
185349941,3cyclictest29494-21ssh00:27:060
185349941,2cyclictest0-21swapper/000:05:110
185349940,4cyclictest4537-21apt-get19:45:130
185349940,4cyclictest30779-21ssh22:52:030
185349940,4cyclictest21977-21diskstats19:15:010
185349940,4cyclictest16051-21ssh23:32:350
185349940,4cyclictest12232-21apt-get23:15:120
185349940,4cyclictest0-21swapper/023:40:110
185349940,4cyclictest0-21swapper/023:10:410
185349940,4cyclictest0-21swapper/023:00:130
185349940,4cyclictest0-21swapper/022:55:110
185349940,4cyclictest0-21swapper/022:43:060
185349940,4cyclictest0-21swapper/022:20:130
185349940,4cyclictest0-21swapper/022:14:490
185349940,4cyclictest0-21swapper/021:54:290
185349940,4cyclictest0-21swapper/021:30:120
185349940,4cyclictest0-21swapper/021:28:000
185349940,4cyclictest0-21swapper/021:20:130
185349940,4cyclictest0-21swapper/021:15:430
185349940,4cyclictest0-21swapper/021:09:580
185349940,4cyclictest0-21swapper/000:24:340
185349940,4cyclictest0-21swapper/000:10:120
185349940,4cyclictest0-21swapper/000:01:220
185349940,3cyclictest30749-21ssh22:05:030
185349940,3cyclictest28328-21cat23:55:000
185349940,3cyclictest27641-21ssh22:35:090
185349940,3cyclictest26629-21ssh23:37:500
185349940,3cyclictest24324-21ssh23:05:130
185349940,3cyclictest21858-21ssh21:45:040
185349940,3cyclictest13816-21ssh00:35:170
185349940,3cyclictest10470-21ssh00:17:510
185349940,3cyclictest10103-21dpkg21:55:010
185349940,3cyclictest0-21swapper/020:30:120
185459932,1cyclictest802-21snmpd20:40:043
185459932,1cyclictest802-21snmpd19:40:043
185459932,1cyclictest40-21ksoftirqd/322:10:013
185459931,1cyclictest0-21swapper/320:25:113
185459931,0cyclictest0-21swapper/320:55:103
185459930,3cyclictest9475-21apt-get19:55:113
185459930,3cyclictest29803-21df_inode20:35:143
185459930,3cyclictest16901-21apt-get20:10:113
185459930,3cyclictest14435-21apt20:05:133
185459930,3cyclictest0-21swapper/322:20:053
185459930,3cyclictest0-21swapper/320:20:143
185459930,3cyclictest0-21swapper/319:50:123
185459930,3cyclictest0-21swapper/319:35:123
185459930,3cyclictest0-21swapper/319:25:113
185459930,3cyclictest0-21swapper/319:10:113
185409933,0cyclictest21172-21kworker/2:019:25:092
185409932,1cyclictest31-21ksoftirqd/219:20:122
185409931,1cyclictest7006-21apt-get19:50:122
185409931,1cyclictest0-21swapper/220:15:122
185409930,3cyclictest31821-21hostname20:40:122
185409930,3cyclictest13280-21sh21:25:052
185409930,3cyclictest11681-21apt-get21:05:022
185409930,3cyclictest0-21swapper/223:00:132
185409930,3cyclictest0-21swapper/221:00:012
185409930,3cyclictest0-21swapper/220:55:452
185409930,3cyclictest0-21swapper/220:35:122
185409930,3cyclictest0-21swapper/220:20:012
185409930,3cyclictest0-21swapper/219:55:052
185409930,3cyclictest0-21swapper/219:40:132
185359933,0cyclictest0-21swapper/123:10:381
185359933,0cyclictest0-21swapper/123:04:401
185359933,0cyclictest0-21swapper/100:05:031
185359931,2cyclictest0-21swapper/121:40:121
185359931,1cyclictest0-21swapper/123:30:111
185359931,1cyclictest0-21swapper/122:15:131
185359931,1cyclictest0-21swapper/121:55:011
185359931,1cyclictest0-21swapper/121:50:021
185359931,1cyclictest0-21swapper/121:35:131
185359931,1cyclictest0-21swapper/121:05:131
185359931,1cyclictest0-21swapper/121:00:121
185359931,1cyclictest0-21swapper/120:50:121
185359931,1cyclictest0-21swapper/119:35:121
185359931,1cyclictest0-21swapper/119:15:141
185359931,1cyclictest0-21swapper/100:25:111
185359931,1cyclictest0-21swapper/100:20:111
185359931,1cyclictest0-21swapper/100:00:121
185359930,3cyclictest0-21swapper/120:36:231
185359930,3cyclictest0-21swapper/120:21:241
185359930,3cyclictest0-21swapper/120:03:301
185359930,3cyclictest0-21swapper/119:49:241
185359930,3cyclictest0-21swapper/119:10:071
185359930,2cyclictest26178-21chrt21:30:351
185359930,2cyclictest0-21swapper/122:50:111
185359930,2cyclictest0-21swapper/119:50:121
185359930,2cyclictest0-21swapper/119:40:121
185349933,0cyclictest8080-21kworker/0:020:50:050
185349933,0cyclictest8080-21kworker/0:020:00:090
185349933,0cyclictest8080-21kworker/0:019:50:090
185349932,1cyclictest802-21snmpd19:20:100
185349931,1cyclictest0-21swapper/020:25:110
185349930,3cyclictest802-21snmpd19:10:130
185349930,3cyclictest29716-21sort19:30:120
185349930,3cyclictest2485-21perl20:45:140
185349930,3cyclictest0-21swapper/022:00:120
185349930,3cyclictest0-21swapper/020:55:100
185349930,3cyclictest0-21swapper/020:40:120
185349930,3cyclictest0-21swapper/020:35:120
185349930,3cyclictest0-21swapper/020:15:160
185349930,3cyclictest0-21swapper/020:05:130
185349930,3cyclictest0-21swapper/019:55:110
185349930,3cyclictest0-21swapper/019:40:120
185349930,3cyclictest0-21swapper/019:35:120
185359921,1cyclictest0-21swapper/122:30:011
185359920,1cyclictest19382-21chrt20:15:121
185359920,1cyclictest0-21swapper/123:55:111
185359920,1cyclictest0-21swapper/123:50:131
185359920,1cyclictest0-21swapper/123:25:051
185359920,1cyclictest0-21swapper/121:25:111
185359920,1cyclictest0-21swapper/121:15:161
185359920,1cyclictest0-21swapper/121:10:131
185359920,1cyclictest0-21swapper/120:55:101
185359920,1cyclictest0-21swapper/120:45:121
185359920,1cyclictest0-21swapper/120:40:121
185359920,1cyclictest0-21swapper/120:25:001
185359920,1cyclictest0-21swapper/120:05:131
185359920,1cyclictest0-21swapper/119:55:111
185359920,1cyclictest0-21swapper/119:30:111
185359920,1cyclictest0-21swapper/119:25:121
185359920,1cyclictest0-21swapper/119:20:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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