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2026-01-11 - 19:10
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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 Sun Jan 11, 2026 12:45:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234372205144,48sleep10-21swapper/107:09:301
232652204149,41sleep00-21swapper/007:07:160
232782203163,26sleep30-21swapper/307:07:273
213702197157,27sleep20-21swapper/207:05:082
20312710,0sleep20-21swapper/210:50:212
295502170,0sleep30-21swapper/311:25:193
2357599140,13cyclictest0-21swapper/208:45:202
23575991311,1cyclictest28-21ksoftirqd/208:00:002
2356899130,12cyclictest0-21swapper/108:45:111
2358399121,9cyclictest18098-21apt-get12:35:113
23575991210,1cyclictest28-21ksoftirqd/212:09:592
2357599119,1cyclictest28-21ksoftirqd/208:35:002
23575991110,1cyclictest28-21ksoftirqd/212:35:002
2356899110,10cyclictest0-21swapper/108:30:201
2356199119,1cyclictest9-21ksoftirqd/007:50:000
2356199112,4cyclictest20568-21perf08:09:590
2357599108,1cyclictest28-21ksoftirqd/210:05:002
2357599100,4cyclictest0-21swapper/212:10:102
2356199109,1cyclictest9-21ksoftirqd/007:15:010
2356199102,4cyclictest18199-21perf08:05:000
2356199101,4cyclictest31359-21cut07:25:000
2356199100,9cyclictest0-21swapper/007:30:140
2356199100,1cyclictest0-21swapper/008:40:110
235839997,1cyclictest35-21ksoftirqd/308:05:003
235839997,1cyclictest16617-21diskmemload09:31:473
235839990,4cyclictest16617-21diskmemload11:20:203
235759998,1cyclictest28-21ksoftirqd/211:09:592
235759997,1cyclictest28-21ksoftirqd/207:25:002
235759997,1cyclictest0-21swapper/209:30:142
235619998,0cyclictest9-21ksoftirqd/009:27:030
235619992,4cyclictest7613-21grep11:40:000
235619990,2cyclictest0-21swapper/008:50:110
21920297,1sleep335-21ksoftirqd/310:35:173
13510290,0sleep20-21swapper/212:29:512
235839986,1cyclictest707-21snmpd11:52:133
235839986,1cyclictest707-21snmpd11:52:123
235839986,1cyclictest707-21snmpd11:40:063
235839986,1cyclictest707-21snmpd11:00:343
235839986,1cyclictest707-21snmpd09:28:253
235839986,1cyclictest707-21snmpd08:56:133
235839986,1cyclictest707-21snmpd07:25:343
235839980,4cyclictest4391-21apt-get10:55:123
235759987,1cyclictest28-21ksoftirqd/211:20:542
235759987,1cyclictest28-21ksoftirqd/207:15:002
235759986,1cyclictest707-21snmpd09:57:412
235759986,1cyclictest707-21snmpd08:18:022
235759986,1cyclictest61650irq/122-eno112:24:492
235759986,1cyclictest61650irq/122-eno112:20:002
235759986,1cyclictest61650irq/122-eno110:20:102
235759986,1cyclictest61650irq/122-eno110:15:562
235759986,1cyclictest61650irq/122-eno109:22:552
235759986,1cyclictest61650irq/122-eno108:05:132
235759986,1cyclictest28-21ksoftirqd/211:40:002
235759986,1cyclictest28-21ksoftirqd/209:05:112
235759981,6cyclictest26120-21kworker/2:110:40:292
235619986,1cyclictest8239-21sendmail10:20:010
235619986,1cyclictest707-21snmpd10:04:240
235619986,1cyclictest707-21snmpd09:01:040
235619986,1cyclictest707-21snmpd08:35:210
235619986,1cyclictest707-21snmpd07:56:530
235619984,2cyclictest240-21systemd-journal12:25:000
235619980,7cyclictest23351-21ssh09:56:540
235619980,7cyclictest15661-21ssh09:47:360
235619980,6cyclictest3305-21runrttasks11:34:200
235619980,4cyclictest8713-21latency_hist09:40:000
235619980,4cyclictest16498-21cat10:30:000
235619980,1cyclictest3177-21ssh10:12:300
235839976,1cyclictest707-21snmpd12:33:173
235839975,1cyclictest707-21snmpd12:13:283
235839975,1cyclictest707-21snmpd11:12:083
235839975,1cyclictest707-21snmpd10:12:123
235839975,1cyclictest707-21snmpd09:55:263
235839975,1cyclictest707-21snmpd09:54:563
235839975,1cyclictest707-21snmpd09:49:453
235839975,1cyclictest707-21snmpd09:35:173
235839975,1cyclictest707-21snmpd08:26:193
235839975,1cyclictest707-21snmpd08:08:323
235839975,1cyclictest707-21snmpd07:31:043
235839975,1cyclictest707-21snmpd07:14:043
235839975,1cyclictest21723-21ssh11:55:383
235839972,3cyclictest0-21swapper/307:55:183
235839971,5cyclictest30397-21apt-get08:30:113
235839971,4cyclictest16617-21diskmemload09:14:593
235839970,4cyclictest24939-21apt-get10:00:103
235759976,1cyclictest61650irq/122-eno110:38:262
235759976,1cyclictest61650irq/122-eno110:05:082
235759976,1cyclictest61650irq/122-eno109:50:192
235759976,1cyclictest61650irq/122-eno109:45:132
235759976,1cyclictest61650irq/122-eno109:05:002
235759976,1cyclictest28-21ksoftirqd/208:30:002
235759976,1cyclictest28-21ksoftirqd/208:15:002
235759976,0cyclictest61650irq/122-eno109:35:212
235759975,1cyclictest61650irq/122-eno112:00:112
235759975,1cyclictest61650irq/122-eno111:45:192
235759975,1cyclictest61650irq/122-eno111:30:102
235759975,1cyclictest61650irq/122-eno110:10:162
235759975,1cyclictest28-21ksoftirqd/209:40:122
235759971,6cyclictest0-21swapper/210:34:012
235759970,4cyclictest0-21swapper/208:55:112
235759970,2cyclictest0-21swapper/211:40:102
235759970,1cyclictest0-21swapper/207:51:052
235759970,1cyclictest0-21swapper/207:26:342
235689973,0cyclictest0-21swapper/107:55:201
235689971,4cyclictest0-21swapper/107:14:591
235689970,7cyclictest0-21swapper/112:08:481
235689970,6cyclictest0-21swapper/108:40:031
235689970,6cyclictest0-21swapper/107:40:131
235689970,3cyclictest0-21swapper/107:35:151
235689970,2cyclictest0-21swapper/112:35:021
235689970,1cyclictest0-21swapper/109:41:291
235619976,1cyclictest707-21snmpd10:32:430
235619976,1cyclictest7011-1kworker/u9:009:51:070
235619976,1cyclictest572-21nscd10:59:070
235619976,1cyclictest5231-21sensors07:35:210
235619976,1cyclictest3573-1kworker/u9:011:03:040
235619976,1cyclictest25551-21ntp_states11:20:170
235619975,1cyclictest707-21snmpd08:20:210
235619975,1cyclictest547-21ntpq12:10:160
235619975,1cyclictest21277-21df10:35:120
235619974,1cyclictest240-21systemd-journal07:45:010
235619972,1cyclictest5052-21/usr/sbin/munin08:45:210
235619971,1cyclictest5084-21ssh12:19:160
235619970,6cyclictest12733-21cstates11:05:130
235619970,6cyclictest0-21swapper/012:35:150
235619970,6cyclictest0-21swapper/010:50:180
235619970,6cyclictest0-21swapper/010:45:220
235619970,6cyclictest0-21swapper/010:20:100
235619970,6cyclictest0-21swapper/009:05:180
235619970,6cyclictest0-21swapper/008:18:380
235619970,1cyclictest30723-21cstates08:30:130
235619970,1cyclictest301172sleep012:06:280
235619970,1cyclictest25046-21cpuspeed_turbos10:40:120
235619970,1cyclictest22109-21proc_pri09:15:190
235619970,1cyclictest19594-21ssh11:13:540
235619970,1cyclictest14715-21ssh11:48:020
235619970,1cyclictest0-21swapper/011:25:130
2213270,1sleep30-21swapper/310:50:283
29459260,4sleep029752-21hddtemp_smartct10:05:140
235839966,0cyclictest30590-21sensors07:20:193
235839965,1cyclictest707-21snmpd11:30:423
235839965,1cyclictest707-21snmpd08:50:183
235839965,1cyclictest707-21snmpd07:52:543
235839965,1cyclictest707-21snmpd07:45:323
235839965,1cyclictest6402-21ssh10:15:353
235839965,1cyclictest35-21ksoftirqd/308:38:223
235839965,1cyclictest32025-21ssh10:48:523
235839965,1cyclictest28400-21uniq12:05:143
235839965,1cyclictest28276-21ssh09:23:273
235839965,1cyclictest27252-21ssh10:41:563
235839965,1cyclictest23093-21ssh11:17:423
235839965,1cyclictest22751-21ssh09:15:423
235839965,1cyclictest14323-21ssh11:05:413
235839965,1cyclictest12344-21ssh12:26:573
235839964,1cyclictest707-21snmpd12:20:253
235839964,1cyclictest707-21snmpd12:17:173
235839964,1cyclictest707-21snmpd08:12:083
235839962,1cyclictest240-21systemd-journal07:20:003
235839962,1cyclictest16617-21diskmemload09:40:143
235839961,2cyclictest24261-21/usr/sbin/munin08:15:183
235839961,2cyclictest16617-21diskmemload10:25:243
235839960,4cyclictest0-21swapper/309:05:143
235839960,3cyclictest0-21swapper/308:20:113
235759966,0cyclictest61650irq/122-eno111:50:162
235759966,0cyclictest61650irq/122-eno111:50:162
235759966,0cyclictest61650irq/122-eno111:15:122
235759966,0cyclictest61650irq/122-eno111:02:072
235759966,0cyclictest61650irq/122-eno110:55:032
235759966,0cyclictest61650irq/122-eno110:45:022
235759966,0cyclictest61650irq/122-eno109:25:072
235759966,0cyclictest61650irq/122-eno108:40:182
235759966,0cyclictest61650irq/122-eno108:22:222
235759966,0cyclictest61650irq/122-eno107:39:562
235759965,1cyclictest61650irq/122-eno108:35:212
235759965,1cyclictest61650irq/122-eno108:00:222
235759965,1cyclictest61650irq/122-eno107:15:012
235759965,1cyclictest28-21ksoftirqd/212:35:002
235759965,1cyclictest28-21ksoftirqd/209:15:132
235759964,1cyclictest28-21ksoftirqd/210:25:002
235759963,1cyclictest240-21systemd-journal08:54:552
235759962,2cyclictest548-21systemd-logind11:27:082
235759960,6cyclictest0-21swapper/209:10:012
235759960,6cyclictest0-21swapper/207:43:232
235759960,2cyclictest0-21swapper/211:55:152
235759960,2cyclictest0-21swapper/211:10:142
235689962,1cyclictest0-21swapper/112:20:001
235689961,4cyclictest0-21swapper/111:00:161
235689961,3cyclictest0-21swapper/111:55:111
235689960,6cyclictest0-21swapper/112:11:361
235689960,6cyclictest0-21swapper/110:17:001
235689960,6cyclictest0-21swapper/109:46:531
235689960,6cyclictest0-21swapper/109:17:071
235689960,6cyclictest0-21swapper/107:54:081
235689960,5cyclictest0-21swapper/109:50:221
235689960,5cyclictest0-21swapper/108:08:351
235689960,3cyclictest0-21swapper/108:10:111
235689960,2cyclictest0-21swapper/109:13:421
235689960,1cyclictest0-21swapper/111:45:101
235689960,1cyclictest0-21swapper/108:16:201
235689960,1cyclictest0-21swapper/107:22:411
235619965,1cyclictest896-21ssh09:30:060
235619965,1cyclictest8373-1kworker/u9:012:30:070
235619965,1cyclictest707-21snmpd08:13:570
235619965,1cyclictest25819-21ssh12:00:490
235619965,1cyclictest22749-21ssh11:58:090
235619965,1cyclictest11906-21ssh12:25:530
235619960,6cyclictest0-21swapper/009:40:350
235619960,6cyclictest0-21swapper/008:58:010
235619960,6cyclictest0-21swapper/007:10:150
235619960,5cyclictest17392-21ssh09:10:130
235619960,2cyclictest0-21swapper/011:50:010
235619960,2cyclictest0-21swapper/011:50:010
235619960,1cyclictest27067-21ssh09:20:430
235619960,0cyclictest9765-21ssh11:40:330
235619960,0cyclictest20348-21ssh11:15:110
30882250,0sleep10-21swapper/110:46:041
235839954,1cyclictest8529-21ssh10:20:083
235839954,1cyclictest5945-21cat08:45:163
235839954,1cyclictest18841-21ssh10:31:033
235839953,1cyclictest707-21snmpd11:36:563
235839953,1cyclictest693-21runrttasks08:43:583
235839953,1cyclictest35-21ksoftirqd/307:37:193
235839953,1cyclictest13915-21seq09:00:493
235839953,1cyclictest12769-21kernelversion11:45:153
235839950,4cyclictest23819-21ssh12:00:083
235839950,1cyclictest28924-21/usr/sbin/munin10:05:213
235759955,0cyclictest61650irq/122-eno107:45:182
235759953,1cyclictest61650irq/122-eno107:30:112
235689955,0cyclictest0-21swapper/111:25:041
235689955,0cyclictest0-21swapper/111:13:511
235689955,0cyclictest0-21swapper/110:11:291
235689955,0cyclictest0-21swapper/109:32:571
235689954,1cyclictest0-21swapper/112:26:551
235689953,2cyclictest0-21swapper/109:56:571
235689953,1cyclictest14359-21chrt11:05:461
235689952,3cyclictest0-21swapper/110:42:201
235689951,3cyclictest0-21swapper/108:25:121
235689951,2cyclictest0-21swapper/110:30:141
235689950,5cyclictest0-21swapper/111:37:341
235689950,5cyclictest0-21swapper/108:56:291
235689950,5cyclictest0-21swapper/108:20:361
235689950,5cyclictest0-21swapper/108:01:501
235689950,5cyclictest0-21swapper/107:27:251
235689950,5cyclictest0-21swapper/107:15:491
235689950,4cyclictest0-21swapper/110:21:211
235689950,3cyclictest0-21swapper/110:50:041
235689950,2cyclictest0-21swapper/109:35:541
235689950,2cyclictest0-21swapper/109:20:111
235689950,2cyclictest0-21swapper/107:45:111
235689950,1cyclictest0-21swapper/111:43:201
235689950,1cyclictest0-21swapper/110:35:101
235689950,0cyclictest0-21swapper/112:01:091
235689950,0cyclictest0-21swapper/110:25:011
235619950,4cyclictest32544-21taskset07:25:170
235619950,2cyclictest0-21swapper/007:50:110
235619950,0cyclictest0-21swapper/008:25:100
235839942,1cyclictest6400-21/usr/sbin/munin07:40:143
235689944,0cyclictest0-21swapper/111:34:531
235689944,0cyclictest0-21swapper/109:08:291
235689941,2cyclictest0-21swapper/109:03:111
235689940,4cyclictest0-21swapper/110:59:321
235689940,4cyclictest0-21swapper/108:38:541
235689940,4cyclictest0-21swapper/107:31:431
235689940,3cyclictest0-21swapper/110:00:101
235689940,2cyclictest0-21swapper/112:34:491
235689940,2cyclictest0-21swapper/111:17:221
235689940,2cyclictest0-21swapper/109:25:131
235689940,1cyclictest0-21swapper/111:50:541
235689940,1cyclictest0-21swapper/111:50:531
235689940,1cyclictest0-21swapper/111:20:091
235689932,1cyclictest33692sleep112:15:031
235689930,3cyclictest0-21swapper/108:50:051
235689930,1cyclictest0-21swapper/110:05:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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