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2026-09-07 - 01:50
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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 792 highest latencies:
System rack1slot1.osadl.org (updated Mon Sep 07, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
232972239160,27sleep00-21swapper/019:09:010
232972239160,27sleep00-21swapper/019:09:010
232792212150,49sleep20-21swapper/219:08:472
232792212150,49sleep20-21swapper/219:08:462
230372200161,26sleep30-21swapper/319:05:383
230372200161,26sleep30-21swapper/319:05:383
231712198161,24sleep10-21swapper/119:07:211
231712198161,24sleep10-21swapper/119:07:211
241632590,0sleep30-21swapper/320:15:193
289952160,0sleep20-21swapper/220:25:202
23475991511,4cyclictest28-21ksoftirqd/221:10:192
199642140,0sleep10-21swapper/100:19:401
2347599130,13cyclictest0-21swapper/221:50:202
2347599130,12cyclictest0-21swapper/221:38:342
2347599130,12cyclictest0-21swapper/220:05:142
2346899130,12cyclictest0-21swapper/120:05:131
53702120,0sleep00-21swapper/023:58:090
23475991210,1cyclictest28-21ksoftirqd/223:25:142
2347599120,11cyclictest0-21swapper/219:40:222
23466991210,1cyclictest9-21ksoftirqd/020:00:000
2347599119,1cyclictest28-21ksoftirqd/222:25:142
2347599110,11cyclictest0-21swapper/200:27:542
2347599110,0cyclictest0-21swapper/221:21:462
2346699119,1cyclictest9-21ksoftirqd/020:29:590
2346699112,4cyclictest31447-21perf23:50:000
23466991110,1cyclictest9-21ksoftirqd/022:50:000
23466991110,1cyclictest9-21ksoftirqd/000:25:000
265742100,0sleep016122-21diskmemload22:10:080
2348699108,1cyclictest18878-21ssh21:58:343
2347599109,1cyclictest28-21ksoftirqd/223:55:152
2347599109,1cyclictest28-21ksoftirqd/223:00:202
2347599100,7cyclictest22085-21apt-get22:50:142
2347599100,6cyclictest561-21nscd20:11:052
2347599100,4cyclictest0-21swapper/222:20:112
2347599100,10cyclictest0-21swapper/222:15:192
2347599100,1cyclictest0-21swapper/200:31:022
2346699103,3cyclictest22866-21sed22:05:000
2346699102,4cyclictest32053-21sed20:35:000
2346699102,4cyclictest19379-21perf22:00:000
2346699100,7cyclictest30921-21kworker/0:222:30:140
2346699100,7cyclictest30921-21kworker/0:222:30:140
234759998,1cyclictest28-21ksoftirqd/223:40:142
234759998,1cyclictest28-21ksoftirqd/223:20:152
234759998,1cyclictest28-21ksoftirqd/219:35:002
234759997,1cyclictest28-21ksoftirqd/223:05:162
234759997,1cyclictest28-21ksoftirqd/222:55:142
234759990,9cyclictest0-21swapper/222:44:202
234689990,4cyclictest0-21swapper/122:15:221
234669998,1cyclictest9-21ksoftirqd/023:35:000
234669998,1cyclictest9-21ksoftirqd/000:05:010
234669997,1cyclictest9-21ksoftirqd/023:25:130
234669993,6cyclictest12906-21munin-run00:10:010
234669991,4cyclictest1652-21latency_hist00:40:000
234869987,1cyclictest35-21ksoftirqd/300:24:593
234869986,1cyclictest35-21ksoftirqd/320:30:003
234869986,1cyclictest11301-21snmpd23:44:043
234869986,1cyclictest11301-21snmpd23:27:273
234869986,1cyclictest11301-21snmpd22:55:203
234869986,1cyclictest11301-21snmpd22:18:593
234869986,1cyclictest11301-21snmpd21:16:533
234869986,1cyclictest11301-21snmpd20:43:193
234869986,1cyclictest10436-21ssh22:32:083
234869986,1cyclictest10436-21ssh22:32:083
234869984,2cyclictest240-21systemd-journal00:28:583
234759987,1cyclictest28-21ksoftirqd/200:35:202
234759986,1cyclictest61650irq/122-eno122:09:592
234759986,1cyclictest61650irq/122-eno119:50:132
234759986,1cyclictest11301-21snmpd22:31:232
234759986,1cyclictest11301-21snmpd22:31:222
234759986,1cyclictest11301-21snmpd21:25:302
234759986,1cyclictest11301-21snmpd19:19:052
234759986,1cyclictest11301-21snmpd00:13:472
234759983,4cyclictest25817-21munin-node21:58:382
234759981,4cyclictest2298-21kworker/u8:221:30:282
234759980,8cyclictest0-21swapper/200:06:442
234759980,3cyclictest0-21swapper/223:15:132
234669986,1cyclictest9-21ksoftirqd/023:40:000
234669986,1cyclictest9-21ksoftirqd/020:20:130
234669986,1cyclictest11301-21snmpd20:35:310
234669986,1cyclictest11301-21snmpd20:03:150
234669984,2cyclictest16122-21diskmemload23:02:220
234669981,6cyclictest5618-21sh23:11:120
234669981,6cyclictest30925-21ssh21:30:020
234669981,6cyclictest16122-21diskmemload21:25:060
234669981,2cyclictest0-21swapper/021:45:220
234669980,6cyclictest240-21systemd-journal21:00:000
234869977,0cyclictest16122-21diskmemload23:23:593
234869977,0cyclictest0-21swapper/319:32:563
234869976,1cyclictest11301-21snmpd23:13:243
234869976,1cyclictest11301-21snmpd22:44:083
234869976,1cyclictest11301-21snmpd22:37:433
234869976,1cyclictest11301-21snmpd21:22:273
234869976,1cyclictest11301-21snmpd20:31:333
234869975,1cyclictest30256-21ssh23:46:163
234869975,1cyclictest2470-21perf23:54:593
234869975,1cyclictest24364-21ssh23:39:493
234869975,1cyclictest12538-21ssh00:08:483
234869975,1cyclictest11301-21snmpd22:13:513
234869975,1cyclictest11301-21snmpd21:07:353
234869975,1cyclictest11301-21snmpd20:06:453
234869975,1cyclictest11301-21snmpd20:00:563
234869975,1cyclictest11301-21snmpd19:52:183
234869975,1cyclictest11301-21snmpd19:18:023
234869971,4cyclictest16122-21diskmemload22:51:453
234869971,4cyclictest13368-21apt-get19:55:123
234869971,4cyclictest11301-21snmpd20:45:123
234869971,4cyclictest0-21swapper/323:05:553
234869971,3cyclictest0-21swapper/323:58:253
234869971,1cyclictest0-21swapper/300:00:193
234869970,6cyclictest22700-21ssh22:04:383
234869970,4cyclictest25240-21taskset22:06:293
234869970,3cyclictest0-21swapper/321:41:033
234869970,2cyclictest0-21swapper/323:17:573
234759976,1cyclictest61650irq/122-eno123:50:022
234759976,1cyclictest61650irq/122-eno123:49:102
234759976,1cyclictest61650irq/122-eno122:00:182
234759976,1cyclictest61650irq/122-eno100:20:202
234759976,1cyclictest28-21ksoftirqd/221:48:202
234759976,0cyclictest61650irq/122-eno122:45:162
234759976,0cyclictest61650irq/122-eno122:35:142
234759976,0cyclictest61650irq/122-eno100:15:182
234759975,1cyclictest28-21ksoftirqd/222:10:132
234759975,1cyclictest28-21ksoftirqd/221:15:132
234759975,1cyclictest28-21ksoftirqd/221:00:142
234759975,1cyclictest11301-21snmpd23:33:482
234759975,1cyclictest11301-21snmpd20:19:312
234759971,6cyclictest0-21swapper/220:02:152
234759971,3cyclictest7860-21sed00:00:212
234759971,1cyclictest0-21swapper/219:25:282
234759970,7cyclictest61650irq/122-eno123:12:002
234759970,7cyclictest0-21swapper/219:12:532
234689972,3cyclictest0-21swapper/100:24:131
234689971,6cyclictest0-21swapper/121:48:361
234689971,6cyclictest0-21swapper/120:36:191
234689971,5cyclictest0-21swapper/123:05:141
234689970,4cyclictest0-21swapper/123:40:331
234689970,3cyclictest0-21swapper/122:30:071
234689970,3cyclictest0-21swapper/122:30:071
234689970,1cyclictest0-21swapper/123:01:571
234689970,1cyclictest0-21swapper/100:25:351
234669977,0cyclictest0-21swapper/000:13:070
234669976,1cyclictest9-21ksoftirqd/023:45:000
234669976,1cyclictest9-21ksoftirqd/021:36:340
234669976,1cyclictest5819-21ntp_states22:25:180
234669976,1cyclictest27474-21telnet00:30:120
234669976,1cyclictest21338-1kworker/u9:123:16:010
234669976,1cyclictest11701-21telnet21:00:130
234669975,1cyclictest6979-21cat19:40:180
234669974,2cyclictest9467-21nscd20:20:010
234669971,1cyclictest13650-21ssh22:36:160
234669970,7cyclictest0-21swapper/022:41:140
234669970,6cyclictest9547-21cut19:45:160
234669970,6cyclictest599-21ssh23:05:150
234669970,6cyclictest26248-21perl22:55:140
234669970,6cyclictest25409-1kworker/u9:222:09:070
234669970,6cyclictest24328-21ssh22:51:570
234669970,6cyclictest17026-21cut00:15:130
234669970,6cyclictest16122-21diskmemload23:50:210
234669970,6cyclictest0-21swapper/020:40:130
234669970,5cyclictest240-21systemd-journal19:40:000
234669970,3cyclictest16122-21diskmemload21:21:270
234669970,1cyclictest738-21users19:25:210
234669970,1cyclictest6410-21ssh21:40:170
234669970,1cyclictest26527-21ssh00:28:150
234669970,1cyclictest20156-21cut21:15:140
234669970,1cyclictest0-21swapper/022:15:120
234869965,1cyclictest31154-21ssh23:01:273
234869965,1cyclictest19603-21ssh23:30:373
234869965,1cyclictest18474-21ssh21:11:523
234869965,1cyclictest16854-21ssh00:15:063
234869965,1cyclictest13547-21cat21:50:193
234869965,1cyclictest11301-21snmpd22:20:083
234869964,1cyclictest35-21ksoftirqd/319:40:133
234869964,1cyclictest16122-21diskmemload21:25:533
234869964,1cyclictest11301-21snmpd20:37:313
234869964,1cyclictest11301-21snmpd19:35:293
234869963,1cyclictest294-21systemd-udevd21:35:083
234869963,1cyclictest240-21systemd-journal19:30:003
234869961,4cyclictest0-21swapper/300:35:133
234869961,1cyclictest18712-21aten2.4-expect22:45:123
234869960,5cyclictest693-21runrttasks21:00:433
234869960,2cyclictest0-21swapper/321:30:323
234869960,2cyclictest0-21swapper/300:31:203
234869960,2cyclictest0-21swapper/300:11:233
234869960,1cyclictest9171-21apt-get21:45:123
234869960,1cyclictest0-21swapper/322:28:563
234759966,0cyclictest61650irq/122-eno121:40:192
234759966,0cyclictest61650irq/122-eno120:56:442
234759966,0cyclictest61650irq/122-eno120:45:182
234759966,0cyclictest61650irq/122-eno120:20:192
234759966,0cyclictest61650irq/122-eno119:56:592
234759966,0cyclictest61650irq/122-eno119:45:112
234759965,1cyclictest11301-21snmpd21:09:232
234759965,1cyclictest11301-21snmpd19:35:562
234759965,1cyclictest0-21swapper/219:21:472
234759964,1cyclictest28-21ksoftirqd/220:35:142
234759964,1cyclictest2199-21apt-get20:40:122
234759963,2cyclictest7661-21head20:50:152
234759963,2cyclictest21210-21apt-get23:35:112
234759960,5cyclictest0-21swapper/220:32:422
234689966,0cyclictest0-21swapper/121:51:101
234689960,6cyclictest0-21swapper/123:10:031
234689960,6cyclictest0-21swapper/122:14:551
234689960,6cyclictest0-21swapper/121:44:211
234689960,6cyclictest0-21swapper/121:09:151
234689960,6cyclictest0-21swapper/120:40:521
234689960,6cyclictest0-21swapper/120:15:161
234689960,6cyclictest0-21swapper/119:51:451
234689960,6cyclictest0-21swapper/119:44:421
234689960,6cyclictest0-21swapper/100:04:371
234689960,5cyclictest0-21swapper/123:55:171
234689960,5cyclictest0-21swapper/122:54:231
234689960,5cyclictest0-21swapper/121:25:161
234689960,5cyclictest0-21swapper/120:25:151
234689960,5cyclictest0-21swapper/119:16:291
234689960,4cyclictest0-21swapper/123:29:281
234689960,4cyclictest0-21swapper/122:20:201
234689960,2cyclictest0-21swapper/123:47:121
234689960,1cyclictest0-21swapper/121:55:111
234689960,1cyclictest0-21swapper/121:20:151
234669965,1cyclictest9-21ksoftirqd/021:10:010
234669965,1cyclictest9-21ksoftirqd/019:20:000
234669965,1cyclictest7691-1kworker/u9:021:50:430
234669965,1cyclictest18423-21cstates20:05:140
234669965,1cyclictest1662-21ssh22:20:130
234669965,1cyclictest11301-21snmpd19:13:380
234669964,1cyclictest11301-21snmpd19:33:570
234669963,2cyclictest10800-21apt-get23:20:120
234669960,5cyclictest0-21swapper/020:10:120
234669960,0cyclictest0-21swapper/021:10:190
234669960,0cyclictest0-21swapper/020:51:450
234669960,0cyclictest0-21swapper/020:45:120
234669960,0cyclictest0-21swapper/019:21:390
234869954,1cyclictest11301-21snmpd20:59:533
234869953,1cyclictest29077-21taskset19:20:083
234869953,1cyclictest23774-21aten_r1power_po19:10:133
234869951,1cyclictest8974-21/usr/sbin/munin19:45:123
234869950,1cyclictest27302-21sh20:25:003
234689953,1cyclictest170342sleep121:10:161
234689952,2cyclictest0-21swapper/122:09:011
234689951,2cyclictest0-21swapper/100:39:321
234689950,5cyclictest0-21swapper/122:03:001
234689950,5cyclictest0-21swapper/119:36:411
234689950,5cyclictest0-21swapper/100:05:181
234689950,4cyclictest0-21swapper/120:50:121
234689950,3cyclictest0-21swapper/123:50:351
234689950,3cyclictest0-21swapper/123:31:591
234689950,3cyclictest0-21swapper/122:25:091
234689950,3cyclictest0-21swapper/120:30:141
234689950,2cyclictest0-21swapper/123:36:461
234689950,2cyclictest0-21swapper/123:20:131
234689950,2cyclictest0-21swapper/123:15:131
234689950,2cyclictest0-21swapper/122:40:151
234689950,2cyclictest0-21swapper/122:35:041
234689950,2cyclictest0-21swapper/121:35:191
234689950,2cyclictest0-21swapper/121:32:481
234689950,2cyclictest0-21swapper/119:30:131
234689950,1cyclictest0-21swapper/122:55:291
234689950,1cyclictest0-21swapper/121:15:121
234689950,0cyclictest0-21swapper/121:01:561
234669953,1cyclictest11736-21head19:50:150
234869943,1cyclictest8038-21ntpq20:50:183
234869940,1cyclictest240-21systemd-journal20:10:013
234689941,2cyclictest0-21swapper/120:20:161
234689941,2cyclictest0-21swapper/120:00:171
234689940,3cyclictest18543-21taskset22:45:041
234689940,3cyclictest0-21swapper/119:57:091
234689940,2cyclictest0-21swapper/119:25:121
234689940,2cyclictest0-21swapper/100:30:081
234689940,1cyclictest0-21swapper/119:47:101
234689940,1cyclictest0-21swapper/100:10:191
234689940,0cyclictest0-21swapper/120:55:201
234689940,0cyclictest0-21swapper/120:10:201
234689930,3cyclictest23652-21taskset19:10:061
234689930,1cyclictest0-21swapper/120:45:111
234689930,1cyclictest0-21swapper/119:20:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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