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2026-01-10 - 23:54
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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 Jan 10, 2026 12:45:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
268262227158,25sleep30-21swapper/307:06:513
269792219153,23sleep20-21swapper/207:08:512
269882201162,26sleep10-21swapper/107:08:581
270562198160,24sleep00-21swapper/007:09:490
53932590,0sleep30-21swapper/310:50:183
238292560,0sleep00-21swapper/010:34:500
2715299150,1cyclictest24513-21cat09:55:000
135502150,0sleep20-21swapper/211:40:202
2715299140,1cyclictest9693-21date07:40:000
2715299140,1cyclictest17281-21cat07:55:120
2716999130,12cyclictest0-21swapper/210:34:382
2715299130,1cyclictest0-21swapper/010:05:180
27176991211,1cyclictest27450-21sh11:19:253
2715299121,2cyclictest0-21swapper/011:55:130
2715299120,1cyclictest0-21swapper/011:53:470
309902110,0sleep10-21swapper/110:01:421
27176991111,0cyclictest35-21ksoftirqd/307:45:003
27176991110,1cyclictest35-21ksoftirqd/311:40:003
2715299115,5cyclictest29785-21sed11:20:190
2715299111,1cyclictest7423-21ssh10:54:180
2715299110,2cyclictest16537-21latency_hist09:45:010
2715299110,1cyclictest19452-21cat12:30:000
2715299110,1cyclictest0-21swapper/007:10:130
2717699109,1cyclictest9549-21munin-plugin-st07:40:003
2717699109,1cyclictest35-21ksoftirqd/309:15:003
2715299108,1cyclictest9-21ksoftirqd/008:05:000
2715299106,4cyclictest10554-21ssh10:16:380
2715299104,5cyclictest7991-21ssh09:34:030
2715299101,1cyclictest632-21grep07:20:130
2715299100,9cyclictest4222-21/usr/sbin/munin10:10:120
2715299100,9cyclictest0-21swapper/010:29:050
2715299100,5cyclictest27140-21cyclictest09:17:080
2715299100,2cyclictest240-21systemd-journal09:00:000
2715299100,1cyclictest6183-21netstat07:30:170
2715299100,1cyclictest15269-21ssh11:44:000
2715299100,1cyclictest13487-21ntpq07:45:170
2715299100,1cyclictest12840-21ps12:20:170
2715299100,1cyclictest0-21swapper/009:55:100
2715299100,0cyclictest0-21swapper/012:15:110
2715299100,0cyclictest0-21swapper/011:37:120
271769998,1cyclictest35-21ksoftirqd/311:30:003
271769997,1cyclictest35-21ksoftirqd/308:30:003
271769990,1cyclictest15876-21cat11:45:013
271699997,1cyclictest28-21ksoftirqd/209:10:002
271529997,1cyclictest23914-21awk08:10:000
271529995,3cyclictest707-21snmpd08:11:530
271529993,5cyclictest9586-21cat09:35:150
271529993,5cyclictest5191-21expr11:30:210
271529993,5cyclictest22982-21ssh12:33:280
271529990,5cyclictest0-21swapper/011:45:030
271529990,4cyclictest31224-21/usr/sbin/munin08:25:210
271529990,4cyclictest0-21swapper/011:10:140
271529990,3cyclictest0-21swapper/010:55:280
271529990,2cyclictest0-21swapper/012:35:120
271529990,1cyclictest31932-21ssh10:03:590
271529990,1cyclictest240-21systemd-journal11:10:000
271529990,1cyclictest240-21systemd-journal08:40:000
271529990,1cyclictest0-21swapper/009:45:130
271529990,0cyclictest0-21swapper/010:24:240
271769987,1cyclictest35-21ksoftirqd/312:05:003
271769987,1cyclictest35-21ksoftirqd/310:10:003
271769987,1cyclictest35-21ksoftirqd/309:35:003
271769980,7cyclictest26486-21apt-get08:15:103
271769980,6cyclictest0-21swapper/310:30:123
271699988,0cyclictest0-21swapper/211:07:492
271699987,1cyclictest28-21ksoftirqd/212:10:002
271699987,1cyclictest28-21ksoftirqd/209:15:002
271699986,1cyclictest707-21snmpd09:26:522
271699986,1cyclictest61650irq/122-eno112:15:222
271699986,1cyclictest61650irq/122-eno111:35:012
271699986,1cyclictest61650irq/122-eno111:32:382
271699986,1cyclictest61650irq/122-eno108:00:002
271699986,1cyclictest28-21ksoftirqd/209:40:002
271699986,1cyclictest16656-21ntpq09:00:172
271699985,1cyclictest61650irq/122-eno112:20:172
271699983,4cyclictest561-21nscd10:18:212
271699980,7cyclictest22445-21kworker/2:208:50:002
271699980,5cyclictest22445-21kworker/2:208:10:002
271619982,1cyclictest0-21swapper/109:59:131
271619981,1cyclictest0-21swapper/111:37:001
271619980,1cyclictest0-21swapper/107:50:191
271529986,1cyclictest707-21snmpd08:40:120
271529985,2cyclictest32652-21ssh10:45:120
271529984,3cyclictest0-21swapper/010:40:190
271529983,4cyclictest2659-21ssh11:28:280
271529983,4cyclictest0-21swapper/009:00:150
271529982,5cyclictest4254-21head12:10:140
271529982,5cyclictest1664-21entropy08:30:150
271529982,5cyclictest1664-21entropy08:30:150
271529982,3cyclictest11482-21perl08:50:130
271529982,1cyclictest8370-21cut08:45:120
271529982,1cyclictest31012-21fschecks_time07:15:140
271529982,1cyclictest29476-21tune2fs08:20:140
271529982,1cyclictest28295-21cstates12:00:110
271529981,0cyclictest0-21swapper/011:16:200
271529980,8cyclictest0-21swapper/009:22:200
271529980,3cyclictest0-21swapper/009:25:370
271529980,3cyclictest0-21swapper/009:13:080
271529980,2cyclictest1-21systemd10:40:000
271529980,1cyclictest1458-21ssh12:05:430
271769976,1cyclictest707-21snmpd12:19:283
271769976,1cyclictest35-21ksoftirqd/312:25:003
271769976,1cyclictest35-21ksoftirqd/311:35:003
271769976,1cyclictest35-21ksoftirqd/311:00:003
271769976,1cyclictest35-21ksoftirqd/310:50:003
271769976,1cyclictest35-21ksoftirqd/307:55:003
271769976,0cyclictest35-21ksoftirqd/310:20:003
271769975,1cyclictest707-21snmpd11:22:233
271769975,1cyclictest707-21snmpd11:08:533
271769975,1cyclictest707-21snmpd11:01:253
271769975,1cyclictest707-21snmpd09:18:583
271769975,1cyclictest30353-21ssh10:41:093
271769975,1cyclictest18903-21sshd07:56:453
271769973,1cyclictest1154-21apt-get08:30:133
271769973,1cyclictest1154-21apt-get08:30:133
271769972,4cyclictest12145-21kworker/u8:207:46:233
271769970,5cyclictest12748-21kworker/u8:209:44:243
271769970,3cyclictest0-21swapper/309:20:093
271699976,1cyclictest61650irq/122-eno112:01:152
271699976,1cyclictest61650irq/122-eno111:57:322
271699976,1cyclictest61650irq/122-eno111:50:122
271699976,1cyclictest61650irq/122-eno111:15:202
271699976,1cyclictest61650irq/122-eno110:55:162
271699976,1cyclictest61650irq/122-eno110:44:332
271699976,1cyclictest61650irq/122-eno110:11:172
271699976,1cyclictest61650irq/122-eno110:05:002
271699976,1cyclictest61650irq/122-eno109:45:122
271699976,1cyclictest61650irq/122-eno109:17:262
271699976,1cyclictest61650irq/122-eno108:50:162
271699976,1cyclictest5064-21/usr/sbin/munin07:30:172
271699976,1cyclictest28-21ksoftirqd/207:40:002
271699976,0cyclictest61650irq/122-eno110:05:082
271699976,0cyclictest61650irq/122-eno108:40:132
271699975,1cyclictest707-21snmpd07:19:102
271699975,1cyclictest61650irq/122-eno112:30:132
271699975,1cyclictest61650irq/122-eno111:10:122
271699975,1cyclictest61650irq/122-eno110:50:132
271699975,1cyclictest61650irq/122-eno110:46:532
271699975,1cyclictest61650irq/122-eno110:25:112
271699975,1cyclictest61650irq/122-eno108:10:122
271699973,2cyclictest548-21systemd-logind12:25:212
271699971,6cyclictest0-21swapper/208:01:142
271699971,1cyclictest0-21swapper/208:34:422
271699971,1cyclictest0-21swapper/208:34:422
271699970,4cyclictest240-21systemd-journal12:40:002
271699970,1cyclictest240-21systemd-journal11:05:002
271699970,1cyclictest0-21swapper/208:20:152
271699970,1cyclictest0-21swapper/207:40:102
271619971,6cyclictest0-21swapper/110:43:521
271619971,6cyclictest0-21swapper/109:50:541
271619971,6cyclictest0-21swapper/108:46:121
271619971,4cyclictest0-21swapper/111:00:151
271619970,6cyclictest0-21swapper/109:30:171
271619970,6cyclictest0-21swapper/109:00:121
271619970,6cyclictest0-21swapper/108:20:361
271619970,1cyclictest0-21swapper/110:34:061
271619970,1cyclictest0-21swapper/109:15:161
271529971,1cyclictest27531-21missed_timers08:15:150
271529971,1cyclictest0-21swapper/007:50:110
271529970,1cyclictest0-21swapper/011:00:200
271529970,1cyclictest0-21swapper/007:40:130
271529970,1cyclictest0-21swapper/007:25:140
271529970,0cyclictest0-21swapper/009:05:140
271769965,1cyclictest8180-21ssh10:15:033
271769965,1cyclictest707-21snmpd08:01:293
271769965,1cyclictest4113-21sensors07:25:193
271769965,1cyclictest35-21ksoftirqd/312:30:013
271769965,1cyclictest35-21ksoftirqd/310:05:003
271769965,1cyclictest35-21ksoftirqd/308:50:123
271769965,1cyclictest32766-21ssh09:25:123
271769965,1cyclictest27395-21ssh12:39:313
271769965,1cyclictest27392-21ssh09:57:443
271769965,1cyclictest26482-21ssh10:36:323
271769965,1cyclictest25925-21ssh11:55:463
271769965,1cyclictest22972-21ssh09:51:423
271769965,1cyclictest21836-21ssh11:50:353
271769965,1cyclictest2160-21ssh10:05:423
271769965,1cyclictest21179-21ntpq11:10:173
271769965,1cyclictest19704-21ssh09:48:263
271769965,1cyclictest16057-21ssh11:45:113
271769965,1cyclictest15673-21ssh12:25:033
271769964,1cyclictest707-21snmpd12:10:073
271769964,1cyclictest707-21snmpd07:23:133
271769964,1cyclictest35-21ksoftirqd/308:07:473
271769964,1cyclictest1323-21ssh12:05:223
271769963,1cyclictest13650irq/124-ahci[0007:14:553
271769960,1cyclictest0-21swapper/310:25:113
271769960,1cyclictest0-21swapper/309:35:103
271769960,1cyclictest0-21swapper/307:30:123
271699966,0cyclictest61650irq/122-eno112:10:392
271699966,0cyclictest61650irq/122-eno111:20:582
271699966,0cyclictest61650irq/122-eno110:35:122
271699966,0cyclictest61650irq/122-eno110:20:172
271699966,0cyclictest61650irq/122-eno109:50:102
271699966,0cyclictest61650irq/122-eno109:30:192
271699966,0cyclictest61650irq/122-eno109:20:082
271699966,0cyclictest61650irq/122-eno107:50:002
271699966,0cyclictest61650irq/122-eno107:25:112
271699966,0cyclictest61650irq/122-eno107:23:462
271699965,1cyclictest28-21ksoftirqd/207:45:142
271699965,0cyclictest61650irq/122-eno111:25:082
271699964,1cyclictest61650irq/122-eno111:45:102
271699964,1cyclictest28-21ksoftirqd/208:40:002
271699964,1cyclictest12675-21/usr/sbin/munin09:40:112
271699963,1cyclictest240-21systemd-journal07:15:002
271699960,6cyclictest0-21swapper/208:55:072
271699960,6cyclictest0-21swapper/208:27:522
271699960,2cyclictest0-21swapper/209:55:102
271699960,1cyclictest0-21swapper/208:15:292
271619961,5cyclictest0-21swapper/111:20:471
271619961,2cyclictest0-21swapper/111:25:151
271619960,6cyclictest0-21swapper/112:09:431
271619960,6cyclictest0-21swapper/111:12:381
271619960,6cyclictest0-21swapper/110:35:181
271619960,6cyclictest0-21swapper/109:45:231
271619960,6cyclictest0-21swapper/108:55:141
271619960,6cyclictest0-21swapper/108:52:091
271619960,6cyclictest0-21swapper/108:10:141
271619960,5cyclictest0-21swapper/111:50:141
271619960,5cyclictest0-21swapper/110:59:521
271619960,5cyclictest0-21swapper/107:30:191
271619960,3cyclictest0-21swapper/110:45:541
271619960,2cyclictest0-21swapper/112:15:171
271619960,2cyclictest0-21swapper/109:20:091
271619960,2cyclictest0-21swapper/108:30:211
271619960,2cyclictest0-21swapper/108:30:211
271619960,1cyclictest0-21swapper/112:10:151
271619960,1cyclictest0-21swapper/111:45:141
271619960,1cyclictest0-21swapper/108:25:061
18432260,0sleep10-21swapper/111:06:551
271769954,1cyclictest707-21snmpd08:48:393
271769954,1cyclictest35-21ksoftirqd/308:40:013
271769952,1cyclictest13650irq/124-ahci[0008:15:003
271769951,2cyclictest28871-21apt-get08:20:113
271769950,5cyclictest0-21swapper/309:03:313
271769950,3cyclictest13146-21apt-get08:55:103
271769950,0cyclictest0-21swapper/307:17:353
271619955,0cyclictest0-21swapper/110:54:111
271619955,0cyclictest0-21swapper/108:17:131
271619955,0cyclictest0-21swapper/107:25:331
271619952,2cyclictest0-21swapper/111:40:151
271619951,3cyclictest0-21swapper/108:00:121
271619951,2cyclictest0-21swapper/107:45:111
271619951,0cyclictest0-21swapper/110:07:281
271619950,5cyclictest0-21swapper/112:26:041
271619950,5cyclictest0-21swapper/110:17:051
271619950,5cyclictest0-21swapper/107:22:581
271619950,4cyclictest0-21swapper/112:35:171
271619950,4cyclictest0-21swapper/110:25:001
271619950,4cyclictest0-21swapper/107:40:011
271619950,4cyclictest0-21swapper/107:15:151
271619950,1cyclictest0-21swapper/109:25:541
271619950,1cyclictest0-21swapper/108:05:141
271619950,0cyclictest0-21swapper/112:04:561
271769943,1cyclictest19250-21systemctl09:05:203
271769941,1cyclictest3510-21apt-get08:35:103
271619941,2cyclictest0-21swapper/110:10:111
271619941,0cyclictest0-21swapper/108:35:101
271619940,4cyclictest0-21swapper/111:30:201
271619940,4cyclictest0-21swapper/109:10:191
271619940,3cyclictest0-21swapper/112:20:101
271619940,3cyclictest0-21swapper/107:55:101
271619940,1cyclictest0-21swapper/112:30:171
271619940,1cyclictest0-21swapper/110:25:191
271619940,1cyclictest0-21swapper/109:40:501
271619940,1cyclictest0-21swapper/109:10:001
271619940,1cyclictest0-21swapper/107:35:171
271619940,0cyclictest0-21swapper/108:40:151
271619931,1cyclictest0-21swapper/111:55:101
271619931,1cyclictest0-21swapper/111:15:131
271619931,1cyclictest0-21swapper/109:35:001
271619930,1cyclictest0-21swapper/107:10:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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