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2026-04-14 - 23:52
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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 Tue Apr 14, 2026 12:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14632226157,55sleep30-21swapper/307:07:353
16082220153,23sleep20-21swapper/207:09:272
15972203164,25sleep10-21swapper/107:09:181
13412202150,22sleep00-21swapper/007:05:590
1071721060,0sleep00-21swapper/010:10:180
80682500,0sleep20-21swapper/211:31:302
174199140,0cyclictest0-21swapper/109:20:431
1750991313,0cyclictest28-21ksoftirqd/212:33:042
1750991313,0cyclictest28-21ksoftirqd/210:22:042
1750991313,0cyclictest28-21ksoftirqd/210:01:502
1750991312,1cyclictest28-21ksoftirqd/211:10:002
1750991312,1cyclictest28-21ksoftirqd/210:06:482
174199130,12cyclictest0-21swapper/108:40:181
1733991312,1cyclictest9-21ksoftirqd/011:05:150
1733991311,1cyclictest9-21ksoftirqd/007:59:590
1750991211,1cyclictest28-21ksoftirqd/209:40:142
1750991210,1cyclictest28-21ksoftirqd/211:10:162
175099121,4cyclictest0-21swapper/208:15:132
1733991211,1cyclictest9-21ksoftirqd/008:30:000
94482110,0sleep30-21swapper/310:10:013
175099115,3cyclictest32014-21kworker/2:110:42:122
1750991111,0cyclictest28-21ksoftirqd/209:14:092
1750991110,1cyclictest28-21ksoftirqd/212:15:532
1733991110,1cyclictest9-21ksoftirqd/011:20:230
175099109,1cyclictest28-21ksoftirqd/212:37:112
175099109,1cyclictest28-21ksoftirqd/211:55:142
175099109,1cyclictest28-21ksoftirqd/211:20:192
175099109,1cyclictest28-21ksoftirqd/210:10:172
175099109,1cyclictest28-21ksoftirqd/209:30:182
175099109,1cyclictest28-21ksoftirqd/209:20:212
175099109,1cyclictest28-21ksoftirqd/208:44:592
175099108,2cyclictest15172-21sh12:24:492
175099108,1cyclictest28-21ksoftirqd/211:15:132
175099108,1cyclictest28-21ksoftirqd/208:35:202
175099107,2cyclictest15195-21apt-get09:35:132
1750991010,0cyclictest28-21ksoftirqd/210:33:542
175099100,5cyclictest4097-21munin-node11:45:092
173399109,1cyclictest9-21ksoftirqd/009:50:120
173399109,1cyclictest9-21ksoftirqd/009:20:160
173399109,1cyclictest9-21ksoftirqd/008:35:140
173399108,1cyclictest9-21ksoftirqd/007:30:150
17539998,1cyclictest35-21ksoftirqd/311:10:013
17539998,1cyclictest27218-21diskmemload09:38:403
17539998,0cyclictest35-21ksoftirqd/309:45:143
17539992,4cyclictest26071-21kworker/u8:112:39:393
17539990,6cyclictest0-21swapper/311:35:153
17509999,0cyclictest28-21ksoftirqd/210:37:472
17509999,0cyclictest28-21ksoftirqd/209:55:142
17509999,0cyclictest28-21ksoftirqd/209:15:152
17509998,1cyclictest28-21ksoftirqd/210:25:182
17509998,1cyclictest28-21ksoftirqd/210:17:082
17509998,1cyclictest28-21ksoftirqd/209:45:152
17509998,1cyclictest28-21ksoftirqd/208:50:122
17509998,1cyclictest28-21ksoftirqd/207:55:132
17509998,1cyclictest28-21ksoftirqd/207:15:012
17509998,0cyclictest28-21ksoftirqd/210:55:132
17509998,0cyclictest28-21ksoftirqd/210:55:132
17509997,1cyclictest28-21ksoftirqd/211:35:162
17509997,1cyclictest28-21ksoftirqd/207:25:202
17509996,1cyclictest61650irq/122-eno112:05:012
17509990,6cyclictest3781-21apt-get10:45:122
17509990,6cyclictest0-21swapper/207:35:122
17339999,0cyclictest9-21ksoftirqd/008:20:010
17339998,1cyclictest9-21ksoftirqd/008:20:120
17339997,1cyclictest9-21ksoftirqd/011:35:160
17339991,7cyclictest0-21swapper/009:10:190
17339990,1cyclictest240-21systemd-journal10:50:240
17539987,1cyclictest9813-21seq10:51:353
17539987,1cyclictest35-21ksoftirqd/309:10:013
17539987,1cyclictest35-21ksoftirqd/309:10:003
17539986,1cyclictest35-21ksoftirqd/310:50:003
17539981,4cyclictest0-21swapper/309:40:123
17539980,7cyclictest0-21swapper/311:32:183
17539980,4cyclictest2048-21apt-get11:25:133
17509988,0cyclictest28-21ksoftirqd/211:50:212
17509988,0cyclictest28-21ksoftirqd/211:25:192
17509988,0cyclictest28-21ksoftirqd/211:00:122
17509987,1cyclictest28-21ksoftirqd/212:14:302
17509987,1cyclictest28-21ksoftirqd/210:50:202
17509987,1cyclictest28-21ksoftirqd/207:50:002
17509986,1cyclictest61650irq/122-eno111:40:192
17509986,1cyclictest28-21ksoftirqd/208:40:142
17509986,1cyclictest28-21ksoftirqd/208:20:162
17509986,1cyclictest28-21ksoftirqd/208:10:162
17509986,1cyclictest28-21ksoftirqd/207:30:162
17509986,1cyclictest28-21ksoftirqd/207:15:012
17509985,1cyclictest28-21ksoftirqd/209:30:002
17509980,1cyclictest0-21swapper/208:05:192
17509980,1cyclictest0-21swapper/208:05:192
17419981,4cyclictest0-21swapper/110:50:111
17419981,3cyclictest0-21swapper/110:47:451
17419980,5cyclictest0-21swapper/107:35:131
17419980,2cyclictest0-21swapper/107:55:121
17339988,0cyclictest9-21ksoftirqd/009:40:160
17339988,0cyclictest9-21ksoftirqd/007:50:200
17339988,0cyclictest21884-1kworker/u9:012:33:140
17339987,1cyclictest9-21ksoftirqd/010:05:110
17339987,1cyclictest9-21ksoftirqd/009:25:080
17339987,1cyclictest9-21ksoftirqd/007:40:140
17339987,1cyclictest8141-1kworker/u9:010:22:240
17339987,1cyclictest26361-1kworker/u9:011:19:010
17339987,1cyclictest256292chrt12:37:130
17339987,1cyclictest15331-1kworker/u9:111:40:330
17339987,1cyclictest10628-1kworker/u9:010:58:180
17339987,1cyclictest10628-1kworker/u9:010:58:180
17339986,1cyclictest9-21ksoftirqd/008:30:140
17339980,1cyclictest240-21systemd-journal11:10:560
17339980,1cyclictest17873-21ssh09:37:410
17539976,1cyclictest35-21ksoftirqd/307:40:003
17539976,1cyclictest35-21ksoftirqd/307:35:003
17539976,1cyclictest22386-21cat07:50:153
17539975,1cyclictest35-21ksoftirqd/307:26:053
17539975,1cyclictest29923-21ntpq08:05:173
17539975,1cyclictest29923-21ntpq08:05:163
17539973,2cyclictest5098-21/usr/sbin/munin07:15:103
17539972,5cyclictest572-21nscd09:14:193
17539971,5cyclictest4097-21munin-node09:02:083
17539971,3cyclictest0-21swapper/310:15:263
17539970,6cyclictest30613-21ssh10:36:033
17539970,5cyclictest0-21swapper/311:41:593
17509976,1cyclictest28-21ksoftirqd/212:25:142
17509976,1cyclictest28-21ksoftirqd/209:05:212
17509976,1cyclictest28-21ksoftirqd/209:05:212
17509976,1cyclictest28-21ksoftirqd/207:40:162
17509975,1cyclictest28-21ksoftirqd/209:50:072
17509971,2cyclictest240-21systemd-journal07:25:002
17509970,0cyclictest0-21swapper/208:55:132
17419970,4cyclictest0-21swapper/109:15:141
17419970,3cyclictest0-21swapper/110:55:331
17419970,3cyclictest0-21swapper/110:55:321
17339977,0cyclictest9-21ksoftirqd/012:10:100
17339977,0cyclictest9-21ksoftirqd/009:05:010
17339977,0cyclictest9-21ksoftirqd/009:05:010
17339977,0cyclictest2891-1kworker/u9:211:02:490
17339976,1cyclictest9-21ksoftirqd/012:15:140
17339976,1cyclictest9-21ksoftirqd/012:00:120
17339976,1cyclictest9-21ksoftirqd/011:50:110
17339976,1cyclictest9-21ksoftirqd/011:45:180
17339976,1cyclictest9-21ksoftirqd/011:30:090
17339976,1cyclictest9-21ksoftirqd/010:30:160
17339976,1cyclictest9-21ksoftirqd/009:30:140
17339976,1cyclictest9-21ksoftirqd/008:45:000
17339976,1cyclictest9-21ksoftirqd/008:10:110
17339976,1cyclictest9-21ksoftirqd/007:15:010
17339976,1cyclictest13573-21ssh12:20:280
17339971,5cyclictest9786-21telnet07:25:130
17339970,6cyclictest5784-21ssh10:45:570
17339970,6cyclictest359-21sshd12:05:140
17339970,6cyclictest31378-21/usr/sbin/munin09:15:200
17339970,6cyclictest29859-21pmu-power10:35:190
17339970,6cyclictest27218-21diskmemload09:55:160
17339970,6cyclictest20159-21/usr/sbin/munin08:55:180
17339970,6cyclictest16736-21ntp_states12:25:180
17339970,6cyclictest0-21swapper/011:25:150
17339970,6cyclictest0-21swapper/009:45:050
17339970,5cyclictest240-21systemd-journal10:17:000
17339970,5cyclictest0-21swapper/008:50:130
17339970,1cyclictest3797-21ssh10:00:390
17339970,1cyclictest25072-21/usr/sbin/munin11:55:200
17339970,1cyclictest19968-21smartctl07:45:150
17339970,1cyclictest0-21swapper/010:25:080
17339970,0cyclictest0-21swapper/010:40:210
17136270,0sleep10-21swapper/112:25:201
23505260,0sleep10-21swapper/110:27:261
19378260,0sleep30-21swapper/310:21:353
17539966,0cyclictest7215-21sensors08:25:173
17539965,1cyclictest863-21cat10:40:163
17539965,1cyclictest6270-21ssh12:11:203
17539965,1cyclictest5276-21ssh09:21:293
17539965,1cyclictest35-21ksoftirqd/307:45:003
17539965,1cyclictest3209-21ssh12:08:243
17539965,1cyclictest26775-21ssh11:15:023
17539965,1cyclictest26596-21sshd09:50:033
17539965,1cyclictest24288-21ssh10:29:313
17539965,1cyclictest21052-21cat08:55:173
17539965,1cyclictest1857-21ssh09:17:583
17539965,1cyclictest17585-21perf08:50:003
17539965,1cyclictest15178-21ssh11:00:063
17539965,1cyclictest13211-21ssh10:55:293
17539965,1cyclictest13211-21ssh10:55:293
17539965,1cyclictest11176-21ssh09:30:053
17539965,1cyclictest1088-21ssh11:23:163
17539965,1cyclictest10541-21ssh12:17:373
17539964,1cyclictest31105-21ssh12:01:283
17539963,1cyclictest35-21ksoftirqd/307:47:073
17539962,1cyclictest25989-21munin-run08:00:003
17539961,3cyclictest27218-21diskmemload12:25:573
17539961,1cyclictest26452-21/usr/sbin/munin10:30:233
17539960,6cyclictest0-21swapper/312:21:353
17539960,5cyclictest693-21runrttasks07:21:083
17539960,4cyclictest11157-21tune2fs08:35:143
17539960,4cyclictest0-21swapper/311:10:353
17539960,4cyclictest0-21swapper/309:55:213
17539960,3cyclictest0-21swapper/311:46:593
17539960,2cyclictest0-21swapper/312:31:103
17539960,2cyclictest0-21swapper/311:55:393
17539960,1cyclictest0-21swapper/310:04:433
17539960,0cyclictest0-21swapper/311:52:273
17539960,0cyclictest0-21swapper/308:20:133
17509966,0cyclictest28-21ksoftirqd/212:05:022
17509965,1cyclictest28-21ksoftirqd/208:25:102
17509964,1cyclictest28-21ksoftirqd/208:00:132
17509963,2cyclictest61650irq/122-eno109:01:362
17419960,6cyclictest0-21swapper/112:30:111
17419960,6cyclictest0-21swapper/107:16:431
17419960,5cyclictest0-21swapper/109:10:151
17419960,4cyclictest0-21swapper/112:08:211
17419960,4cyclictest0-21swapper/110:41:241
17419960,3cyclictest0-21swapper/111:51:311
17419960,3cyclictest0-21swapper/111:10:121
17419960,3cyclictest0-21swapper/111:00:061
17419960,3cyclictest0-21swapper/110:00:001
17419960,2cyclictest0-21swapper/110:14:541
17419960,2cyclictest0-21swapper/108:10:121
17339960,6cyclictest0-21swapper/008:42:210
17339960,5cyclictest28359-21apt-get08:05:010
17339960,5cyclictest28359-21apt-get08:05:010
17339960,5cyclictest0-21swapper/009:00:120
17339960,5cyclictest0-21swapper/007:20:130
17339960,3cyclictest0-21swapper/007:10:110
17339960,1cyclictest0-21swapper/007:35:140
17339960,0cyclictest0-21swapper/008:01:070
17539955,0cyclictest4098-21kworker/3:108:01:303
17539954,1cyclictest7672-21ssh09:25:153
17539952,1cyclictest240-21systemd-journal07:13:063
17539952,1cyclictest14079-21/usr/sbin/munin08:40:183
17539950,3cyclictest17808-21apt-get08:50:113
17539950,3cyclictest0-21swapper/310:05:053
17509954,1cyclictest28-21ksoftirqd/207:50:122
17509951,3cyclictest0-21swapper/208:30:192
17419955,0cyclictest0-21swapper/111:21:201
17419955,0cyclictest0-21swapper/111:06:081
17419953,1cyclictest5812-21chrt11:30:051
17419953,1cyclictest17432-21chrt11:45:031
17419951,3cyclictest0-21swapper/110:37:071
17419951,3cyclictest0-21swapper/108:50:181
17419950,5cyclictest0-21swapper/109:25:201
17419950,5cyclictest0-21swapper/108:20:201
17419950,4cyclictest0-21swapper/112:17:561
17419950,4cyclictest0-21swapper/108:45:151
17419950,3cyclictest0-21swapper/112:01:561
17419950,3cyclictest0-21swapper/111:35:151
17419950,3cyclictest0-21swapper/110:30:151
17419950,3cyclictest0-21swapper/110:22:241
17419950,3cyclictest0-21swapper/110:00:191
17419950,2cyclictest0-21swapper/112:39:221
17419950,2cyclictest0-21swapper/111:42:281
17419950,2cyclictest0-21swapper/111:19:541
17419950,2cyclictest0-21swapper/109:30:131
17419950,2cyclictest0-21swapper/107:30:121
17419950,1cyclictest0-21swapper/110:17:481
17419950,1cyclictest0-21swapper/109:46:151
17419950,0cyclictest0-21swapper/112:13:321
9384240,3sleep10-21swapper/107:23:561
17539943,1cyclictest31653-21df_inode08:10:153
17539942,1cyclictest2791-21head08:15:213
17539940,1cyclictest240-21systemd-journal08:30:073
17419944,0cyclictest0-21swapper/109:50:521
17419944,0cyclictest0-21swapper/108:55:111
17419944,0cyclictest0-21swapper/108:16:481
17419943,1cyclictest0-21swapper/109:35:131
17419943,1cyclictest0-21swapper/109:05:151
17419943,1cyclictest0-21swapper/109:05:151
17419942,1cyclictest12328-21chrt08:36:071
17419941,2cyclictest0-21swapper/110:05:111
17419940,4cyclictest0-21swapper/107:25:151
17419940,3cyclictest0-21swapper/111:55:101
17419940,3cyclictest0-21swapper/109:40:131
17419940,3cyclictest0-21swapper/107:13:331
17419940,2cyclictest0-21swapper/108:30:211
17419940,1cyclictest0-21swapper/112:20:071
17419940,1cyclictest0-21swapper/111:25:111
17419940,0cyclictest0-21swapper/108:08:331
17419940,0cyclictest0-21swapper/108:08:331
17419940,0cyclictest0-21swapper/108:00:201
17419940,0cyclictest0-21swapper/107:50:191
17419940,0cyclictest0-21swapper/107:45:181
17419940,0cyclictest0-21swapper/107:40:191
17419931,1cyclictest0-21swapper/109:00:111
17419930,2cyclictest0-21swapper/108:25:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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