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2026-04-18 - 15:25
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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 highest latencies:
System rack1slot1.osadl.org (updated Sat Apr 18, 2026 12:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
228792210177,21sleep30-21swapper/307:08:493
227222204159,24sleep00-21swapper/007:06:440
227892201161,26sleep20-21swapper/207:07:392
228552199161,25sleep10-21swapper/107:08:291
288462630,0sleep20-21swapper/210:06:532
85732580,1sleep121-21ksoftirqd/111:48:251
23079991514,0cyclictest28-21ksoftirqd/211:20:502
2306899150,14cyclictest17264-21grep08:05:000
102582140,0sleep30-21swapper/311:50:143
23086991311,1cyclictest35-21ksoftirqd/309:00:003
23079991313,0cyclictest28-21ksoftirqd/212:06:242
23079991211,1cyclictest28-21ksoftirqd/209:14:592
2307499129,0cyclictest21-21ksoftirqd/110:44:021
2307499128,4cyclictest56-21kworker/1:109:25:431
2307499128,4cyclictest21-21ksoftirqd/110:55:141
2306899123,4cyclictest10213-21sed07:50:010
2307999116,3cyclictest61650irq/122-eno110:49:062
23079991111,0cyclictest28-21ksoftirqd/209:46:062
2307999110,11cyclictest0-21swapper/209:22:142
2307499117,4cyclictest21-21ksoftirqd/110:21:401
2307499117,4cyclictest21-21ksoftirqd/108:07:181
2308699108,1cyclictest18567-21latency_hist11:20:003
2307999109,1cyclictest28-21ksoftirqd/211:55:212
2307999109,1cyclictest28-21ksoftirqd/210:30:142
2307999109,1cyclictest28-21ksoftirqd/210:21:352
2307999109,1cyclictest28-21ksoftirqd/209:55:132
2307999108,1cyclictest28-21ksoftirqd/207:45:012
2307999108,1cyclictest28-21ksoftirqd/207:30:002
23079991010,0cyclictest28-21ksoftirqd/211:18:572
2307499106,4cyclictest56-21kworker/1:112:24:511
2307499106,4cyclictest56-21kworker/1:109:14:311
2307499106,4cyclictest21-21ksoftirqd/107:56:071
2306899109,1cyclictest15504-21diskmemload10:33:560
230869990,4cyclictest0-21swapper/312:25:113
230799999,0cyclictest28-21ksoftirqd/212:10:012
230799998,1cyclictest28-21ksoftirqd/211:50:142
230799998,1cyclictest28-21ksoftirqd/211:35:022
230799998,1cyclictest28-21ksoftirqd/211:10:162
230799998,1cyclictest28-21ksoftirqd/211:05:002
230799998,1cyclictest28-21ksoftirqd/210:19:592
230799998,1cyclictest28-21ksoftirqd/210:00:122
230799998,1cyclictest28-21ksoftirqd/209:51:372
230799998,1cyclictest28-21ksoftirqd/209:51:372
230799998,1cyclictest28-21ksoftirqd/209:15:192
230799997,1cyclictest28-21ksoftirqd/210:30:012
230799991,5cyclictest28-21ksoftirqd/212:20:012
230749995,4cyclictest56-21kworker/1:109:59:161
230749990,5cyclictest0-21swapper/111:40:031
30073280,0sleep10-21swapper/110:50:251
230869987,1cyclictest17998-21snmpd10:33:153
230869986,1cyclictest35-21ksoftirqd/308:06:413
230869986,1cyclictest17998-21snmpd08:48:433
230869986,1cyclictest17998-21snmpd07:59:563
230869986,1cyclictest17998-21snmpd07:30:383
230869981,3cyclictest0-21swapper/310:40:023
230869980,5cyclictest5660-21apt-get11:45:123
230869980,4cyclictest17998-21snmpd09:17:193
230869980,1cyclictest0-21swapper/311:23:253
230799988,0cyclictest28-21ksoftirqd/212:00:162
230799988,0cyclictest28-21ksoftirqd/209:40:202
230799988,0cyclictest28-21ksoftirqd/209:35:162
230799987,1cyclictest61650irq/122-eno110:56:522
230799987,1cyclictest28-21ksoftirqd/211:40:112
230799987,1cyclictest28-21ksoftirqd/211:35:012
230799987,1cyclictest28-21ksoftirqd/210:10:102
230799987,1cyclictest28-21ksoftirqd/208:45:012
230799987,1cyclictest28-21ksoftirqd/207:25:002
230799986,1cyclictest61650irq/122-eno112:25:222
230799986,1cyclictest28-21ksoftirqd/211:45:202
230799986,1cyclictest17998-21snmpd11:06:402
230799986,1cyclictest17998-21snmpd09:33:342
230799986,1cyclictest15689-21kworker/2:011:25:162
230799980,3cyclictest0-21swapper/207:15:112
230749988,0cyclictest21-21ksoftirqd/108:30:151
230749984,4cyclictest21-21ksoftirqd/107:11:201
230749980,8cyclictest0-21swapper/112:00:191
230749980,8cyclictest0-21swapper/110:25:181
230749980,7cyclictest0-21swapper/111:05:201
230749980,4cyclictest0-21swapper/111:50:131
230689986,1cyclictest17998-21snmpd11:47:290
230689986,1cyclictest17998-21snmpd09:48:350
230689986,1cyclictest17998-21snmpd07:19:120
230689984,3cyclictest709-21ssh09:30:170
230689982,5cyclictest10737-1kworker/u9:111:32:030
230689981,6cyclictest15901-21hddtemp_smartct09:50:180
230689981,6cyclictest15901-21hddtemp_smartct09:50:170
230689980,7cyclictest14870-21cron08:00:000
230689980,7cyclictest12266-21ssh11:53:090
230689980,7cyclictest101rcuc/011:00:000
230689980,7cyclictest0-21swapper/010:20:180
230689980,5cyclictest0-21swapper/007:25:130
230689980,4cyclictest17998-21snmpd10:52:400
230869976,1cyclictest35-21ksoftirqd/311:13:333
230869976,1cyclictest17998-21snmpd11:05:413
230869976,1cyclictest17998-21snmpd09:53:363
230869976,1cyclictest17998-21snmpd09:53:353
230869976,1cyclictest17998-21snmpd08:13:213
230869976,1cyclictest17998-21snmpd08:00:043
230869975,1cyclictest3635-21ssh10:15:493
230869975,1cyclictest28967-21ssh10:07:123
230869975,1cyclictest23396-21ssh12:07:193
230869975,1cyclictest19567-21ssh10:37:533
230869975,1cyclictest17998-21snmpd09:57:363
230869975,1cyclictest17998-21snmpd09:10:013
230869975,1cyclictest17998-21snmpd08:36:173
230869975,1cyclictest17998-21snmpd07:54:203
230869975,1cyclictest17998-21snmpd07:47:343
230869975,1cyclictest17998-21snmpd07:40:583
230869975,1cyclictest17998-21snmpd07:29:343
230869971,3cyclictest32108-21sh10:10:263
230869970,3cyclictest0-21swapper/309:46:103
230799976,1cyclictest61650irq/122-eno112:31:022
230799976,1cyclictest61650irq/122-eno109:25:092
230799976,1cyclictest61650irq/122-eno109:05:112
230799976,1cyclictest61650irq/122-eno107:50:142
230799976,1cyclictest28-21ksoftirqd/210:44:242
230799976,1cyclictest25628-21kworker/2:207:30:162
230799976,1cyclictest17998-21snmpd08:35:032
230799976,0cyclictest5893-21kworker/2:107:10:202
230799975,1cyclictest61650irq/122-eno112:35:192
230799975,1cyclictest61650irq/122-eno112:35:182
230799975,1cyclictest61650irq/122-eno112:20:152
230799975,1cyclictest28-21ksoftirqd/210:50:092
230799975,1cyclictest28-21ksoftirqd/210:36:132
230799975,1cyclictest28-21ksoftirqd/208:55:162
230799975,1cyclictest28-21ksoftirqd/208:00:142
230799975,1cyclictest25628-21kworker/2:208:05:192
230749977,0cyclictest21-21ksoftirqd/112:25:201
230749977,0cyclictest21-21ksoftirqd/112:15:201
230749977,0cyclictest21-21ksoftirqd/111:20:081
230749977,0cyclictest21-21ksoftirqd/109:33:491
230749977,0cyclictest21-21ksoftirqd/107:25:181
230749974,0cyclictest0-21swapper/110:32:501
230749971,6cyclictest0-21swapper/111:13:411
230749971,5cyclictest203-21jbd2/sda2-811:35:471
230749970,7cyclictest0-21swapper/110:36:301
230749970,7cyclictest0-21swapper/110:11:381
230749970,6cyclictest0-21swapper/108:45:131
230749970,4cyclictest0-21swapper/109:15:161
230749970,3cyclictest0-21swapper/108:50:121
230689976,1cyclictest19718-1kworker/u9:010:41:210
230689975,1cyclictest28654-21chrt12:15:030
230689975,1cyclictest23162-21ssh12:06:410
230689975,1cyclictest17998-21snmpd12:38:100
230689975,1cyclictest17998-21snmpd12:38:100
230689975,1cyclictest17998-21snmpd11:10:580
230689975,1cyclictest17998-21snmpd09:25:040
230689975,1cyclictest17998-21snmpd08:30:110
230689975,1cyclictest17998-21snmpd07:13:480
230689974,1cyclictest240-21systemd-journal09:00:000
230689972,4cyclictest17998-21snmpd11:17:290
230689972,4cyclictest0-21swapper/010:25:180
230689972,1cyclictest24571-21/usr/sbin/munin08:20:130
230689971,1cyclictest0-21swapper/008:05:480
230689970,7cyclictest19319-21ssh10:37:120
230689970,6cyclictest9791-21ssh11:06:490
230689970,6cyclictest3172-21apt-get11:00:020
230689970,6cyclictest26497-21/usr/sbin/munin10:05:130
230689970,6cyclictest26308-21ssh10:45:290
230689970,6cyclictest22831-21aten_r1power_vo10:00:120
230689970,6cyclictest15504-21diskmemload12:20:110
230689970,6cyclictest12388-21taskset07:53:270
230689970,6cyclictest0-21swapper/012:25:150
230689970,6cyclictest0-21swapper/010:15:140
230689970,6cyclictest0-21swapper/010:10:120
230689970,6cyclictest0-21swapper/009:20:180
230689970,1cyclictest3649-21ssh11:40:220
230689970,1cyclictest26762-21ssh12:10:360
230689970,1cyclictest25153-21ssh11:27:130
230689970,1cyclictest21268-21ssh09:57:000
230689970,1cyclictest18593-21ssh09:12:410
230689970,1cyclictest15665-21ssh11:57:050
230689970,1cyclictest0-21swapper/012:30:140
230689970,1cyclictest0-21swapper/012:00:050
230689970,1cyclictest0-21swapper/007:41:400
230869965,1cyclictest5734-21ssh11:01:073
230869965,1cyclictest4679-21ssh11:43:103
230869965,1cyclictest31972-21head09:30:113
230869965,1cyclictest31919-21ssh12:19:123
230869965,1cyclictest30398-21ssh11:35:003
230869965,1cyclictest26447-21ssh11:30:083
230869965,1cyclictest25197-21ssh11:27:213
230869965,1cyclictest17998-21snmpd10:57:493
230869965,1cyclictest17998-21snmpd08:27:303
230869965,1cyclictest17998-21snmpd07:35:353
230869964,1cyclictest17998-21snmpd12:11:093
230869964,1cyclictest17998-21snmpd10:20:573
230869964,1cyclictest17998-21snmpd10:03:093
230869964,1cyclictest17998-21snmpd09:05:313
230869964,1cyclictest17998-21snmpd08:18:143
230869964,1cyclictest15504-21diskmemload09:43:033
230869963,1cyclictest240-21systemd-journal07:20:003
230869963,1cyclictest15504-21diskmemload09:35:163
230869961,4cyclictest31063-1kworker/u9:212:20:033
230869961,4cyclictest17064-21apt-get12:00:113
230869961,3cyclictest0-21swapper/310:45:133
230869961,3cyclictest0-21swapper/310:25:113
230869960,6cyclictest0-21swapper/310:52:383
230869960,3cyclictest0-21swapper/312:35:573
230869960,3cyclictest0-21swapper/312:35:563
230869960,3cyclictest0-21swapper/309:23:113
230869960,1cyclictest0-21swapper/312:30:113
230869960,1cyclictest0-21swapper/309:25:573
230799966,0cyclictest61650irq/122-eno108:34:512
230799966,0cyclictest61650irq/122-eno108:27:152
230799966,0cyclictest61650irq/122-eno108:23:342
230799966,0cyclictest61650irq/122-eno108:15:152
230799965,1cyclictest28-21ksoftirqd/208:50:112
230799965,1cyclictest28-21ksoftirqd/207:55:102
230799965,1cyclictest25628-21kworker/2:209:00:132
230799965,1cyclictest17998-21snmpd08:10:382
230799964,1cyclictest28-21ksoftirqd/207:45:142
230799961,3cyclictest0-21swapper/207:35:112
230799960,6cyclictest0-21swapper/208:45:192
230749966,0cyclictest21-21ksoftirqd/110:15:131
230749966,0cyclictest21-21ksoftirqd/107:15:211
230749962,4cyclictest21-21ksoftirqd/108:40:541
230749962,0cyclictest21-21ksoftirqd/109:36:541
230749962,0cyclictest111rcu_preempt07:44:541
230749960,6cyclictest0-21swapper/112:33:121
230749960,6cyclictest0-21swapper/110:05:091
230749960,6cyclictest0-21swapper/108:27:231
230749960,6cyclictest0-21swapper/108:10:161
230749960,4cyclictest0-21swapper/111:27:421
230749960,3cyclictest0-21swapper/108:20:091
230749960,3cyclictest0-21swapper/108:15:131
230749960,2cyclictest0-21swapper/112:38:381
230749960,2cyclictest0-21swapper/112:38:371
230749960,2cyclictest0-21swapper/108:05:001
230689965,1cyclictest9-21ksoftirqd/008:35:110
230689964,1cyclictest17998-21snmpd08:40:370
230689960,6cyclictest29769-1kworker/u9:109:35:170
230689960,6cyclictest0-21swapper/007:20:460
230689960,5cyclictest0-21swapper/008:45:170
230689960,2cyclictest0-21swapper/009:40:120
230689960,1cyclictest0-21swapper/011:20:110
230689960,0cyclictest0-21swapper/011:35:110
230689960,0cyclictest0-21swapper/009:16:100
230689960,0cyclictest0-21swapper/009:03:000
230869955,0cyclictest7331-21kworker/3:209:03:163
230869955,0cyclictest7331-21kworker/3:208:52:073
230869954,1cyclictest25450-21cat08:20:133
230869953,1cyclictest29288-21apt-get08:30:133
230869951,3cyclictest28688-21apt-get07:20:123
230869951,2cyclictest17998-21snmpd07:13:253
230869950,3cyclictest15504-21diskmemload11:55:133
230749955,0cyclictest0-21swapper/110:45:481
230749951,1cyclictest0-21swapper/109:47:091
230749951,0cyclictest0-21swapper/112:13:381
230749950,5cyclictest0-21swapper/111:15:211
230749950,5cyclictest0-21swapper/109:04:001
230749950,5cyclictest0-21swapper/108:58:071
230749950,5cyclictest0-21swapper/107:35:141
230749950,5cyclictest0-21swapper/107:34:231
230749950,3cyclictest0-21swapper/109:24:401
230749950,2cyclictest0-21swapper/111:00:101
230749950,2cyclictest0-21swapper/109:44:451
230749950,1cyclictest0-21swapper/111:58:081
230749950,1cyclictest0-21swapper/110:02:221
230749950,0cyclictest0-21swapper/112:05:231
230749950,0cyclictest0-21swapper/107:22:311
230689954,1cyclictest21239-21sensors08:10:200
230689952,2cyclictest28077-21ntpq08:25:180
230689951,1cyclictest3643-21cat07:35:130
230689950,4cyclictest965-21/usr/sbin/munin07:30:130
230689950,4cyclictest22189-21/usr/sbin/munin08:15:130
230689950,1cyclictest13376-21/usr/sbin/munin09:05:190
230689950,0cyclictest0-21swapper/008:52:350
230869942,1cyclictest2337-21grep08:40:123
230749944,0cyclictest0-21swapper/107:51:441
230749943,1cyclictest21-21ksoftirqd/109:50:191
230749943,1cyclictest21-21ksoftirqd/109:50:191
230749940,2cyclictest0-21swapper/111:30:091
230749940,0cyclictest0-21swapper/108:35:191
230749940,0cyclictest0-21swapper/107:50:001
230749930,1cyclictest0-21swapper/109:05:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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