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2026-07-11 - 01:35
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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 Jul 11, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
299882215150,51sleep20-21swapper/219:06:092
301712210159,25sleep30-21swapper/319:08:323
300182208157,24sleep00-21swapper/019:06:320
301692201163,25sleep10-21swapper/119:08:291
30378991916,3cyclictest28-21ksoftirqd/223:54:052
30378991615,1cyclictest28-21ksoftirqd/222:12:342
30378991513,1cyclictest28-21ksoftirqd/219:30:222
317132140,0sleep00-21swapper/019:10:160
3035699140,13cyclictest0-21swapper/023:10:100
3035699140,13cyclictest0-21swapper/020:50:140
30378991312,1cyclictest28-21ksoftirqd/221:31:022
30378991311,1cyclictest28-21ksoftirqd/222:00:012
3035699132,5cyclictest20905-21date21:05:010
30378991212,0cyclictest28-21ksoftirqd/221:45:232
30378991211,1cyclictest28-21ksoftirqd/223:35:122
30378991210,1cyclictest28-21ksoftirqd/222:55:012
3037899120,8cyclictest0-21swapper/222:05:112
3037899119,1cyclictest28-21ksoftirqd/223:26:292
3037899119,1cyclictest28-21ksoftirqd/223:15:142
3037899119,1cyclictest28-21ksoftirqd/200:25:162
3037899119,1cyclictest28-21ksoftirqd/200:10:202
30378991110,1cyclictest28-21ksoftirqd/223:41:012
30378991110,1cyclictest28-21ksoftirqd/222:40:582
30378991110,1cyclictest28-21ksoftirqd/222:15:142
30378991110,1cyclictest28-21ksoftirqd/200:15:182
3037899109,1cyclictest28-21ksoftirqd/222:55:192
3037899109,1cyclictest28-21ksoftirqd/222:45:122
3037899109,1cyclictest28-21ksoftirqd/222:35:212
3037899109,1cyclictest28-21ksoftirqd/222:30:172
3037899109,1cyclictest28-21ksoftirqd/221:40:102
3037899109,1cyclictest28-21ksoftirqd/221:20:192
3037899109,1cyclictest28-21ksoftirqd/221:16:422
3037899109,1cyclictest28-21ksoftirqd/220:00:172
3037899109,1cyclictest28-21ksoftirqd/219:29:592
3037899109,1cyclictest28-21ksoftirqd/200:35:152
3037899109,1cyclictest28-21ksoftirqd/200:30:002
3037899109,1cyclictest28-21ksoftirqd/200:05:142
3037899108,1cyclictest28-21ksoftirqd/223:11:202
30370991010,0cyclictest0-21swapper/100:34:061
3035699103,6cyclictest27374-21latency_hist20:10:000
303859990,6cyclictest11659-21/usr/sbin/munin20:45:163
303859990,5cyclictest21029-21apt-get21:50:093
303859990,5cyclictest21029-21apt-get21:50:083
303789999,0cyclictest28-21ksoftirqd/222:20:162
303789999,0cyclictest28-21ksoftirqd/221:35:132
303789999,0cyclictest28-21ksoftirqd/200:20:202
303789998,1cyclictest28-21ksoftirqd/223:55:102
303789998,1cyclictest28-21ksoftirqd/223:31:512
303789998,1cyclictest28-21ksoftirqd/223:20:142
303789998,1cyclictest28-21ksoftirqd/222:01:152
303789998,1cyclictest28-21ksoftirqd/221:27:462
303789998,1cyclictest28-21ksoftirqd/220:55:192
303789998,1cyclictest28-21ksoftirqd/219:40:122
303789998,0cyclictest28-21ksoftirqd/221:50:122
303789998,0cyclictest28-21ksoftirqd/221:50:122
303789997,1cyclictest28-21ksoftirqd/221:10:572
303709990,5cyclictest0-21swapper/119:10:111
303709990,2cyclictest0-21swapper/123:10:101
303569998,1cyclictest9-21ksoftirqd/020:50:000
303569997,1cyclictest23203-21sh21:51:300
303569997,1cyclictest23203-21sh21:51:290
303569994,2cyclictest240-21systemd-journal20:20:010
303569993,6cyclictest6620-21perf22:15:000
303569990,6cyclictest23210-21diskmemload21:30:180
20606290,0sleep30-21swapper/321:49:363
303859987,1cyclictest35-21ksoftirqd/320:40:263
303859987,1cyclictest35-21ksoftirqd/300:25:003
303859982,5cyclictest23210-21diskmemload22:06:203
303859981,4cyclictest29308-1kworker/u9:123:30:123
303789988,0cyclictest28-21ksoftirqd/221:10:002
303789987,1cyclictest28-21ksoftirqd/223:45:482
303789987,1cyclictest28-21ksoftirqd/223:05:132
303789987,1cyclictest28-21ksoftirqd/223:00:182
303789987,1cyclictest28-21ksoftirqd/222:25:032
303789987,1cyclictest28-21ksoftirqd/221:05:012
303789987,1cyclictest28-21ksoftirqd/220:15:142
303789987,1cyclictest28-21ksoftirqd/220:00:002
303789987,1cyclictest28-21ksoftirqd/200:00:142
303789986,1cyclictest28-21ksoftirqd/219:15:002
303789980,8cyclictest0-21swapper/220:45:182
303709980,3cyclictest0-21swapper/123:09:071
303569986,1cyclictest9-21ksoftirqd/000:33:320
303569986,1cyclictest23210-21diskmemload22:35:210
303569984,2cyclictest240-21systemd-journal21:50:000
303569982,5cyclictest23210-21diskmemload00:13:280
303569980,1cyclictest31389-21ssh22:47:200
303569980,1cyclictest0-21swapper/023:52:030
303859976,1cyclictest35-21ksoftirqd/322:00:003
303859974,1cyclictest14180-21ssh00:36:293
303859973,4cyclictest61192sleep323:40:473
303859973,2cyclictest240-21systemd-journal22:51:373
303859972,4cyclictest22114-21idleruntime-cro00:05:013
303859971,4cyclictest18119-21apt-get19:50:123
303859970,5cyclictest0-21swapper/321:40:033
303859970,4cyclictest13866-21apt-get22:25:013
303859970,3cyclictest17510-21ntpq20:55:173
303859970,3cyclictest0-21swapper/321:32:253
303859970,3cyclictest0-21swapper/300:27:463
303859970,2cyclictest0-21swapper/322:20:103
303789977,0cyclictest28-21ksoftirqd/220:30:132
303789977,0cyclictest28-21ksoftirqd/219:20:132
303789976,1cyclictest61650irq/122-eno119:50:132
303789976,1cyclictest28-21ksoftirqd/220:25:182
303789976,1cyclictest28-21ksoftirqd/220:20:122
303789976,1cyclictest28-21ksoftirqd/219:15:012
303789975,1cyclictest28-21ksoftirqd/220:05:132
303789970,7cyclictest0-21swapper/219:35:172
303709970,4cyclictest0-21swapper/122:12:061
303709970,4cyclictest0-21swapper/121:30:131
303709970,3cyclictest0-21swapper/121:48:021
303709970,2cyclictest0-21swapper/123:34:111
303569976,1cyclictest9-21ksoftirqd/021:22:290
303569975,1cyclictest12674-21ssh21:37:410
303569973,2cyclictest240-21systemd-journal19:50:010
303569973,1cyclictest18754-21/usr/sbin/munin00:00:120
303569973,1cyclictest15099-21/usr/sbin/munin23:55:140
303569971,5cyclictest11096-21ssh23:05:110
303569970,7cyclictest12126-1kworker/u9:121:40:450
303569970,6cyclictest7952-21df23:00:130
303569970,6cyclictest29643-21ssh22:00:190
303569970,6cyclictest29302-21ssh23:30:100
303569970,6cyclictest28193-21ntp_states21:15:180
303569970,6cyclictest13979-21seq00:35:540
303569970,6cyclictest0-21swapper/022:40:160
303569970,6cyclictest0-21swapper/022:20:190
303569970,3cyclictest0-21swapper/021:25:070
303569970,1cyclictest693-21runrttasks22:05:380
303569970,1cyclictest6057-1kworker/u9:123:43:170
303569970,1cyclictest5961-21ssh22:56:310
303569970,1cyclictest31495-21ssh00:15:270
303569970,1cyclictest28907-21ssh23:29:400
303569970,1cyclictest2791-21ssh00:20:360
303569970,1cyclictest26474-21ssh21:14:280
303569970,1cyclictest2335-21ssh23:35:230
303569970,1cyclictest23210-21diskmemload00:09:070
303569970,1cyclictest22899-21ssh23:20:150
303569970,1cyclictest14285-21taskset22:25:000
303569970,1cyclictest10363-21ssh23:47:300
303569970,1cyclictest0-21swapper/021:55:140
303859965,1cyclictest8833-21ssh22:16:003
303859965,1cyclictest3361-21ntpq20:25:183
303859965,1cyclictest31253-21ssh22:46:553
303859965,1cyclictest28460-21ssh23:28:213
303859965,1cyclictest28158-21ntpq21:15:173
303859965,1cyclictest26100-21ssh21:13:213
303859965,1cyclictest24014-21ssh22:37:133
303859965,1cyclictest20864-21ssh23:17:253
303859965,1cyclictest13298-21ssh23:50:253
303859965,1cyclictest10965-21cat21:35:163
303859965,1cyclictest10396-21ssh00:30:593
303859964,1cyclictest591-21aten2.4-expect23:35:113
303859963,2cyclictest3775-21/usr/sbin/munin22:55:213
303859963,1cyclictest240-21systemd-journal23:45:383
303859963,1cyclictest240-21systemd-journal22:41:073
303859963,1cyclictest240-21systemd-journal22:10:063
303859963,1cyclictest240-21systemd-journal20:20:343
303859963,1cyclictest240-21systemd-journal19:40:013
303859962,3cyclictest23210-21diskmemload23:04:293
303859962,2cyclictest240-21systemd-journal19:21:323
303859962,1cyclictest14779-21sh23:10:113
303859961,3cyclictest0-21swapper/321:20:103
303859961,2cyclictest23210-21diskmemload23:56:273
303859960,6cyclictest0-21swapper/323:05:113
303859960,3cyclictest0-21swapper/300:11:003
303859960,1cyclictest240-21systemd-journal19:44:543
303789966,0cyclictest61650irq/122-eno120:10:332
303789966,0cyclictest61650irq/122-eno119:45:202
303789964,1cyclictest28-21ksoftirqd/220:45:002
303789964,1cyclictest28-21ksoftirqd/220:35:132
303789962,2cyclictest769-21lldpd20:54:502
303709961,3cyclictest0-21swapper/123:02:521
303709961,3cyclictest0-21swapper/120:00:131
303709960,6cyclictest0-21swapper/123:51:261
303709960,6cyclictest0-21swapper/122:29:361
303709960,6cyclictest0-21swapper/121:24:081
303709960,6cyclictest0-21swapper/120:20:421
303709960,6cyclictest0-21swapper/120:09:291
303709960,6cyclictest0-21swapper/119:58:181
303709960,6cyclictest0-21swapper/119:24:421
303709960,5cyclictest0-21swapper/121:55:141
303709960,4cyclictest0-21swapper/123:47:371
303709960,4cyclictest0-21swapper/123:43:231
303709960,4cyclictest0-21swapper/122:56:111
303709960,4cyclictest0-21swapper/122:45:111
303709960,4cyclictest0-21swapper/100:21:261
303709960,3cyclictest0-21swapper/123:55:141
303709960,3cyclictest0-21swapper/122:00:121
303709960,3cyclictest0-21swapper/121:16:561
303709960,3cyclictest0-21swapper/121:05:101
303709960,3cyclictest0-21swapper/100:35:111
303709960,3cyclictest0-21swapper/100:10:081
303709960,2cyclictest0-21swapper/123:16:301
303709960,2cyclictest0-21swapper/122:36:121
303709960,2cyclictest0-21swapper/100:16:381
303709960,1cyclictest0-21swapper/122:33:191
303709960,1cyclictest0-21swapper/120:55:151
303709960,1cyclictest0-21swapper/119:15:151
303709960,0cyclictest0-21swapper/121:53:171
303709960,0cyclictest0-21swapper/121:53:161
303569965,1cyclictest5175-21grep00:25:150
303569965,1cyclictest0-21swapper/019:35:370
303569964,1cyclictest9-21ksoftirqd/021:00:000
303569964,1cyclictest2326-21ntpq19:15:170
303569963,1cyclictest240-21systemd-journal19:53:020
303569962,2cyclictest240-21systemd-journal20:29:590
303569960,6cyclictest1169-21ssh22:50:180
303569960,6cyclictest0-21swapper/020:10:170
303569960,5cyclictest6846-21apt-get22:15:110
303569960,5cyclictest10394-21strings20:40:160
303569960,4cyclictest240-21systemd-journal22:30:000
303569960,0cyclictest0-21swapper/023:15:210
303569960,0cyclictest0-21swapper/019:40:160
303569960,0cyclictest0-21swapper/019:27:240
31714250,0sleep30-21swapper/320:16:043
303859954,1cyclictest35-21ksoftirqd/319:46:353
303859954,1cyclictest29640-21ssh00:15:073
303859954,1cyclictest28939-21systemctl20:10:243
303859953,1cyclictest22647-21tr00:05:133
303859953,1cyclictest20471-21apt-get19:55:113
303859953,0cyclictest23210-21diskmemload22:31:113
303859952,2cyclictest23210-21diskmemload22:02:513
303859952,1cyclictest23210-21diskmemload23:20:143
303859952,1cyclictest22795-21unixbench_singl21:05:213
303859951,2cyclictest27153-21runrttasks20:08:043
303859950,4cyclictest699-21timerandwakeup19:15:003
303859950,4cyclictest3263-21cut21:25:153
303859950,3cyclictest30572-21apt-get19:10:103
303859950,1cyclictest240-21systemd-journal20:30:343
303859950,1cyclictest0-21swapper/319:30:123
303859950,0cyclictest0-21swapper/321:00:203
303709951,3cyclictest0-21swapper/123:35:101
303709951,1cyclictest0-21swapper/122:15:151
303709951,1cyclictest0-21swapper/122:05:171
303709950,5cyclictest0-21swapper/120:40:151
303709950,5cyclictest0-21swapper/120:31:541
303709950,4cyclictest0-21swapper/120:50:141
303709950,3cyclictest0-21swapper/100:25:051
303709950,2cyclictest0-21swapper/123:20:181
303709950,2cyclictest0-21swapper/122:50:071
303709950,2cyclictest0-21swapper/122:40:331
303709950,2cyclictest0-21swapper/121:43:441
303709950,2cyclictest0-21swapper/121:35:531
303709950,2cyclictest0-21swapper/121:10:121
303709950,2cyclictest0-21swapper/120:45:131
303709950,2cyclictest0-21swapper/100:05:141
303709950,1cyclictest0-21swapper/123:25:171
303709950,1cyclictest0-21swapper/122:20:101
303709950,1cyclictest0-21swapper/121:25:151
303709950,1cyclictest0-21swapper/119:30:121
303709950,1cyclictest0-21swapper/119:25:011
303569952,2cyclictest10092-21grep19:30:220
303569950,5cyclictest0-21swapper/020:00:120
303569950,4cyclictest20468-21/usr/sbin/munin19:55:120
303569950,2cyclictest240-21systemd-journal20:33:490
303569950,1cyclictest0-21swapper/020:35:110
303569950,0cyclictest0-21swapper/020:20:110
303569950,0cyclictest0-21swapper/019:22:540
303859942,1cyclictest6930-21apt-get20:35:103
303859942,1cyclictest23487-21cut20:00:143
303859940,3cyclictest14011-21/usr/sbin/munin20:50:163
303859940,2cyclictest0-21swapper/319:25:003
303709940,4cyclictest0-21swapper/119:47:061
303709940,3cyclictest0-21swapper/119:35:141
303709940,3cyclictest0-21swapper/100:00:291
303709940,1cyclictest0-21swapper/121:01:531
303709940,1cyclictest0-21swapper/120:25:111
303709940,1cyclictest0-21swapper/119:40:191
303569940,0cyclictest0-21swapper/021:05:120
303709931,1cyclictest0-21swapper/119:50:121
303709930,2cyclictest0-21swapper/120:10:161
303709930,1cyclictest0-21swapper/120:35:001
303709930,1cyclictest0-21swapper/120:15:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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