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2026-04-03 - 15:18
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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 Fri Apr 03, 2026 12:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
174952207157,24sleep00-21swapper/007:09:100
174502203162,27sleep20-21swapper/207:08:342
174412198160,25sleep30-21swapper/307:08:273
172452197157,27sleep10-21swapper/107:05:521
222372750,0sleep121-21ksoftirqd/110:05:141
229812650,0sleep121-21ksoftirqd/110:47:561
27342130,0sleep30-21swapper/311:45:173
17662991312,1cyclictest35-21ksoftirqd/310:50:003
1763799130,13cyclictest0-21swapper/012:30:170
1765499120,12cyclictest0-21swapper/208:40:152
1765499120,0cyclictest0-21swapper/211:20:122
1764899120,11cyclictest0-21swapper/111:20:111
1763799123,4cyclictest25897-21latency_hist11:35:000
1766299119,1cyclictest35-21ksoftirqd/309:55:013
1766299119,1cyclictest35-21ksoftirqd/309:55:003
1765499119,1cyclictest483-21sshd11:00:182
1765499110,1cyclictest25623-21/usr/sbin/munin07:25:192
1763799110,0cyclictest0-21swapper/011:20:110
66802100,0sleep10-21swapper/109:00:151
1766299107,1cyclictest35-21ksoftirqd/307:35:013
1766299100,7cyclictest28712-21kworker/u8:111:06:373
1765499103,3cyclictest61650irq/122-eno112:25:112
1763799103,6cyclictest25776-21ntp_states12:15:180
1763799102,4cyclictest29350-21perf10:14:590
5704290,3sleep20-21swapper/211:07:252
176629998,1cyclictest35-21ksoftirqd/312:10:013
176629990,8cyclictest0-21swapper/309:25:033
176629990,3cyclictest240-21systemd-journal11:00:003
176549998,0cyclictest24585-21apt-get12:15:122
176549991,6cyclictest20204-21munin-node10:43:342
176379992,4cyclictest25404-21latency_hist07:24:590
176629987,1cyclictest35-21ksoftirqd/312:05:003
176629986,1cyclictest35-21ksoftirqd/307:45:003
176629982,2cyclictest0-21swapper/312:15:163
176629981,3cyclictest10500-21diskmemload10:10:023
176549987,1cyclictest28-21ksoftirqd/207:35:002
176549986,1cyclictest61650irq/122-eno112:05:142
176549986,1cyclictest61650irq/122-eno109:51:532
176549986,1cyclictest61650irq/122-eno109:51:522
176549986,1cyclictest28-21ksoftirqd/208:07:422
176549983,3cyclictest548-21systemd-logind11:55:182
176549982,5cyclictest3703-21/usr/sbin/munin12:30:122
176549980,5cyclictest561-21nscd11:31:042
176379987,1cyclictest9-21ksoftirqd/009:40:000
176379983,4cyclictest20468-1kworker/u9:210:25:190
176379982,3cyclictest0-21swapper/007:50:100
176379981,6cyclictest16585-21ssh09:15:410
176379980,7cyclictest8570-21ssh09:46:560
176379980,7cyclictest7446-21cat11:10:130
176379980,7cyclictest30505-21ssh12:21:030
176379980,7cyclictest26829-21ssh10:52:590
176379980,7cyclictest24474-21ssh10:07:210
176379980,7cyclictest20746-21/usr/sbin/munin12:10:130
176379980,7cyclictest20303-21ssh11:25:240
176379980,7cyclictest18668-21ssh10:41:420
176379980,7cyclictest12955-21ssh09:53:280
176379980,7cyclictest12955-21ssh09:53:270
176379980,7cyclictest12495-21ssh10:35:050
176379980,7cyclictest12072-21ssh10:34:360
176379980,7cyclictest0-21swapper/009:11:000
176379980,6cyclictest14072-21ntpq12:00:180
21688270,0sleep20-21swapper/212:10:152
176629976,1cyclictest35-21ksoftirqd/311:20:013
176629976,1cyclictest35-21ksoftirqd/310:25:003
176629976,1cyclictest35-21ksoftirqd/308:30:003
176629976,1cyclictest35-21ksoftirqd/307:15:013
176629976,0cyclictest35-21ksoftirqd/310:40:123
176629975,1cyclictest981-21ssh12:25:173
176629975,1cyclictest7469-21ssh11:51:393
176629975,1cyclictest6977-21ssh11:10:123
176629975,1cyclictest4660-21ssh09:41:383
176629975,1cyclictest35-21ksoftirqd/308:00:013
176629975,1cyclictest31208-21ssh12:22:553
176629975,1cyclictest20219-21ssh10:01:123
176629975,1cyclictest16673-21ssh11:20:563
176629973,2cyclictest240-21systemd-journal08:40:013
176629973,1cyclictest10500-21diskmemload10:29:223
176629971,4cyclictest568-21nscd09:31:433
176629970,6cyclictest19924-21ntpq09:20:163
176629970,5cyclictest14628-21apt-get08:10:113
176629970,4cyclictest0-21swapper/310:15:103
176629970,3cyclictest0-21swapper/311:40:163
176629970,2cyclictest0-21swapper/312:10:113
176629970,1cyclictest0-21swapper/311:30:463
176549976,1cyclictest61650irq/122-eno112:00:172
176549976,1cyclictest61650irq/122-eno111:28:042
176549976,1cyclictest61650irq/122-eno109:42:142
176549976,1cyclictest61650irq/122-eno109:39:362
176549976,1cyclictest61650irq/122-eno109:15:142
176549976,1cyclictest61650irq/122-eno107:45:212
176549976,1cyclictest28-21ksoftirqd/207:24:592
176549976,0cyclictest61650irq/122-eno109:14:442
176549975,1cyclictest22030-21ssh10:45:232
176549974,2cyclictest19447-21fschecks_time09:20:132
176549974,1cyclictest61650irq/122-eno110:34:362
176549971,3cyclictest0-21swapper/209:47:212
176489977,0cyclictest149252sleep112:01:021
176489970,7cyclictest0-21swapper/109:42:391
176489970,5cyclictest0-21swapper/110:32:011
176379975,1cyclictest29852-21ssh10:55:480
176379975,1cyclictest26945-21hddtemp_smartct11:35:140
176379975,1cyclictest1956-21ssh11:45:120
176379974,2cyclictest5774-21munin-run09:00:000
176379974,2cyclictest5774-21munin-run09:00:000
176379974,1cyclictest9-21ksoftirqd/007:16:590
176379973,2cyclictest10500-21diskmemload11:19:380
176379971,2cyclictest240-21systemd-journal08:30:340
176379970,7cyclictest0-21swapper/012:35:230
176379970,7cyclictest0-21swapper/011:05:250
176379970,6cyclictest6916-21irqstats09:00:150
176379970,6cyclictest32501-21grep11:00:150
176379970,6cyclictest19144-21ssh12:06:320
176379970,6cyclictest10500-21diskmemload10:15:180
176379970,2cyclictest2915-21diskstats09:40:130
176379970,2cyclictest0-21swapper/008:45:090
176379970,2cyclictest0-21swapper/007:30:090
176379970,1cyclictest3364-21ssh10:21:500
176379970,1cyclictest30029-21telnet11:40:150
176379970,1cyclictest24701-1kworker/u9:009:32:090
176379970,1cyclictest22945-21sh09:25:110
176379970,1cyclictest22375-21ssh10:46:180
176379970,1cyclictest20444-21ssh09:20:190
176379970,1cyclictest16712-21ssh09:57:430
176379970,1cyclictest10045-21memory11:55:150
176379970,1cyclictest0-21swapper/011:50:100
176379970,0cyclictest0-21swapper/010:02:540
176379970,0cyclictest0-21swapper/007:40:110
176629965,1cyclictest9911-21cat11:55:153
176629965,1cyclictest9609-21ssh09:49:443
176629965,1cyclictest35-21ksoftirqd/310:30:133
176629965,1cyclictest35-21ksoftirqd/310:05:153
176629965,1cyclictest35-21ksoftirqd/308:49:413
176629965,1cyclictest27443-21ssh10:54:363
176629965,1cyclictest17182-21apt-get08:15:113
176629965,1cyclictest16717-21ssh09:16:013
176629965,1cyclictest14344-21ssh10:35:253
176629965,1cyclictest13048-21ssh09:11:523
176629964,1cyclictest35-21ksoftirqd/311:35:003
176629963,1cyclictest10500-21diskmemload12:34:243
176629962,3cyclictest14035-21/usr/sbin/munin09:55:163
176629961,2cyclictest7522-21/usr/sbin/munin12:35:163
176629960,6cyclictest0-21swapper/311:00:233
176629960,2cyclictest0-21swapper/309:36:083
176629960,1cyclictest693-21runrttasks07:26:273
176549966,0cyclictest61650irq/122-eno112:35:142
176549966,0cyclictest61650irq/122-eno111:50:242
176549966,0cyclictest61650irq/122-eno111:35:102
176549966,0cyclictest61650irq/122-eno111:16:432
176549966,0cyclictest61650irq/122-eno111:10:102
176549966,0cyclictest61650irq/122-eno110:55:592
176549966,0cyclictest61650irq/122-eno110:36:022
176549966,0cyclictest61650irq/122-eno110:25:042
176549966,0cyclictest61650irq/122-eno110:20:072
176549966,0cyclictest61650irq/122-eno110:15:032
176549966,0cyclictest61650irq/122-eno110:10:562
176549966,0cyclictest61650irq/122-eno110:00:172
176549966,0cyclictest61650irq/122-eno109:05:152
176549966,0cyclictest61650irq/122-eno109:00:192
176549966,0cyclictest61650irq/122-eno108:55:102
176549966,0cyclictest61650irq/122-eno108:55:102
176549966,0cyclictest61650irq/122-eno108:15:112
176549966,0cyclictest61650irq/122-eno108:10:182
176549966,0cyclictest61650irq/122-eno108:00:102
176549966,0cyclictest61650irq/122-eno107:35:452
176549965,1cyclictest61650irq/122-eno111:45:162
176549965,1cyclictest61650irq/122-eno109:55:002
176549965,1cyclictest61650irq/122-eno109:25:352
176549965,1cyclictest61650irq/122-eno107:55:112
176549965,1cyclictest30886-21cat11:40:182
176549965,1cyclictest29353-21cat12:20:152
176549965,1cyclictest23995-21ssh10:50:012
176549964,1cyclictest61650irq/122-eno109:30:162
176549964,1cyclictest61650irq/122-eno108:50:122
176549963,2cyclictest583-21in:imuxsock07:19:592
176549963,1cyclictest19567-21apt-get08:20:112
176549961,1cyclictest23638-21unixbench_singl08:25:212
176549960,3cyclictest0-21swapper/210:05:132
176489960,6cyclictest0-21swapper/112:30:161
176489960,6cyclictest0-21swapper/112:26:401
176489960,6cyclictest0-21swapper/111:48:091
176489960,6cyclictest0-21swapper/111:09:231
176489960,6cyclictest0-21swapper/111:01:361
176489960,6cyclictest0-21swapper/110:16:161
176489960,6cyclictest0-21swapper/108:33:071
176489960,5cyclictest0-21swapper/110:40:141
176489960,4cyclictest0-21swapper/112:12:531
176489960,4cyclictest0-21swapper/107:45:131
176489960,3cyclictest0-21swapper/112:20:171
176489960,1cyclictest0-21swapper/111:40:011
176489960,0cyclictest0-21swapper/112:35:401
176489960,0cyclictest0-21swapper/111:50:521
176489960,0cyclictest0-21swapper/111:40:141
176489960,0cyclictest0-21swapper/111:11:291
176489960,0cyclictest0-21swapper/110:55:081
176489960,0cyclictest0-21swapper/110:35:221
176489960,0cyclictest0-21swapper/110:21:311
176489960,0cyclictest0-21swapper/109:47:011
176489960,0cyclictest0-21swapper/109:09:061
176489960,0cyclictest0-21swapper/108:42:581
176379964,1cyclictest9-21ksoftirqd/008:25:570
176379964,1cyclictest779-21cat12:25:160
176379963,1cyclictest240-21systemd-journal08:02:180
176379961,1cyclictest14625-21/usr/sbin/munin08:10:180
176379960,6cyclictest0-21swapper/007:39:290
176379960,5cyclictest0-21swapper/008:50:160
176379960,5cyclictest0-21swapper/007:25:140
176379960,2cyclictest0-21swapper/007:55:100
176379960,0cyclictest0-21swapper/009:05:190
176379960,0cyclictest0-21swapper/008:36:260
176379960,0cyclictest0-21swapper/008:20:120
176379960,0cyclictest0-21swapper/008:07:060
176379960,0cyclictest0-21swapper/007:48:310
176629955,0cyclictest20203-21kworker/3:208:33:073
176629954,1cyclictest35-21ksoftirqd/307:10:133
176629954,1cyclictest31682-21systemctl07:35:193
176629954,1cyclictest18448-21ssh11:25:043
176629953,1cyclictest693-21runrttasks07:50:143
176629952,2cyclictest0-21swapper/309:05:113
176629952,1cyclictest240-21systemd-journal09:00:343
176629952,1cyclictest0-21swapper/308:50:003
176629951,2cyclictest240-21systemd-journal08:00:183
176629951,1cyclictest2638-21apt-get07:45:103
176629950,5cyclictest0-21swapper/307:20:003
176629950,2cyclictest20115-21cut08:20:133
176629950,0cyclictest0-21swapper/308:07:413
176549955,0cyclictest61650irq/122-eno107:41:412
176549954,1cyclictest61650irq/122-eno107:10:132
176549953,1cyclictest61650irq/122-eno108:30:182
176549953,1cyclictest0-21swapper/208:35:102
176549950,2cyclictest240-21systemd-journal08:50:002
176549950,1cyclictest0-21swapper/207:50:112
176489955,0cyclictest0-21swapper/108:55:121
176489955,0cyclictest0-21swapper/108:55:111
176489953,1cyclictest0-21swapper/107:30:001
176489952,2cyclictest0-21swapper/109:25:121
176489950,5cyclictest0-21swapper/112:05:151
176489950,5cyclictest0-21swapper/111:15:021
176489950,5cyclictest0-21swapper/110:53:561
176489950,5cyclictest0-21swapper/110:25:041
176489950,5cyclictest0-21swapper/110:14:301
176489950,5cyclictest0-21swapper/108:37:331
176489950,5cyclictest0-21swapper/108:13:031
176489950,5cyclictest0-21swapper/107:20:141
176489950,4cyclictest0-21swapper/109:35:181
176489950,4cyclictest0-21swapper/109:15:131
176489950,3cyclictest0-21swapper/112:19:141
176489950,3cyclictest0-21swapper/109:33:031
176489950,2cyclictest0-21swapper/111:30:201
176489950,1cyclictest0-21swapper/111:29:321
176489950,1cyclictest0-21swapper/109:55:201
176489950,1cyclictest0-21swapper/108:50:111
176489950,1cyclictest0-21swapper/108:05:001
176489950,1cyclictest0-21swapper/107:35:111
176489950,0cyclictest0-21swapper/111:55:301
176489950,0cyclictest0-21swapper/109:50:161
176489950,0cyclictest0-21swapper/109:50:151
176489950,0cyclictest0-21swapper/109:21:071
176489950,0cyclictest0-21swapper/109:12:251
176489950,0cyclictest0-21swapper/108:45:171
176489950,0cyclictest0-21swapper/108:20:131
176379953,1cyclictest29093-21aten2.4-expect08:40:110
176379950,5cyclictest0-21swapper/008:16:000
176629943,1cyclictest3842-21grep08:55:123
176629943,1cyclictest3842-21grep08:55:123
176629940,1cyclictest240-21systemd-journal08:40:183
176489943,1cyclictest203-21jbd2/sda2-807:30:171
176489941,2cyclictest0-21swapper/107:50:101
176489941,1cyclictest0-21swapper/107:40:181
176489940,4cyclictest0-21swapper/110:00:041
176489940,4cyclictest0-21swapper/108:19:051
176489940,4cyclictest0-21swapper/107:55:151
176489940,4cyclictest0-21swapper/107:15:301
176489940,4cyclictest0-21swapper/107:10:101
176379940,0cyclictest0-21swapper/007:10:090
176489931,0cyclictest0-21swapper/108:25:111
176489930,0cyclictest0-21swapper/108:05:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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