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2026-06-21 - 08:23
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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 376 highest latencies:
System rack1slot1.osadl.org (updated Sun Jun 21, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
231802242166,24sleep00-21swapper/019:09:490
230692206142,22sleep30-21swapper/319:08:243
230572206169,24sleep10-21swapper/119:08:141
230182201163,24sleep20-21swapper/219:07:412
142292750,0sleep10-21swapper/123:20:001
140692700,0sleep00-21swapper/021:50:160
2328699140,13cyclictest0-21swapper/223:50:122
2327699140,13cyclictest0-21swapper/123:50:201
232482140,0sleep30-21swapper/321:19:543
23294991311,1cyclictest35-21ksoftirqd/320:10:003
20842130,0sleep20-21swapper/221:34:552
161312130,0sleep30-21swapper/322:37:203
2328699123,2cyclictest20061-21apt-get20:10:122
23268991211,1cyclictest9-21ksoftirqd/019:35:010
23294991111,0cyclictest35-21ksoftirqd/322:30:013
23294991110,1cyclictest35-21ksoftirqd/323:54:593
2328699118,2cyclictest3320-21awk19:35:002
23286991110,1cyclictest28-21ksoftirqd/222:35:162
23286991110,1cyclictest28-21ksoftirqd/221:50:142
2328699110,11cyclictest0-21swapper/223:20:102
2326899119,1cyclictest9-21ksoftirqd/023:40:000
23268991110,1cyclictest9-21ksoftirqd/023:25:010
23268991110,1cyclictest9-21ksoftirqd/021:35:140
23294991010,0cyclictest35-21ksoftirqd/322:55:003
2328699109,1cyclictest28-21ksoftirqd/223:45:162
2328699109,1cyclictest28-21ksoftirqd/222:45:112
2328699109,1cyclictest28-21ksoftirqd/222:40:192
2328699109,1cyclictest28-21ksoftirqd/222:35:002
2328699109,1cyclictest28-21ksoftirqd/221:24:532
2328699109,1cyclictest28-21ksoftirqd/221:00:132
2328699109,1cyclictest28-21ksoftirqd/200:10:152
2328699108,1cyclictest693-21runrttasks21:16:432
2328699108,1cyclictest28-21ksoftirqd/219:40:122
2328699108,1cyclictest28-21ksoftirqd/219:40:002
2328699100,1cyclictest0-21swapper/222:10:132
2327699101,3cyclictest0-21swapper/122:35:101
2327699100,4cyclictest0-21swapper/100:38:181
2326899109,1cyclictest9-21ksoftirqd/022:40:010
2326899109,1cyclictest9-21ksoftirqd/000:30:130
2326899108,1cyclictest9-21ksoftirqd/022:00:000
2326899108,1cyclictest9-21ksoftirqd/019:15:000
2326899103,4cyclictest31303-21latency_hist22:14:590
23268991010,0cyclictest9-21ksoftirqd/023:20:000
232949999,0cyclictest35-21ksoftirqd/323:06:173
232949998,1cyclictest35-21ksoftirqd/322:45:203
232949998,1cyclictest35-21ksoftirqd/321:05:133
232949998,1cyclictest35-21ksoftirqd/320:15:143
232949997,1cyclictest35-21ksoftirqd/321:45:163
232949991,4cyclictest32633-21awk19:25:193
232869999,0cyclictest28-21ksoftirqd/223:18:522
232869999,0cyclictest28-21ksoftirqd/221:35:172
232869998,1cyclictest28-21ksoftirqd/223:35:122
232869998,1cyclictest28-21ksoftirqd/223:00:202
232869998,1cyclictest28-21ksoftirqd/222:50:202
232869998,1cyclictest28-21ksoftirqd/222:25:152
232869998,1cyclictest28-21ksoftirqd/221:26:202
232869998,1cyclictest28-21ksoftirqd/219:25:112
232869998,1cyclictest28-21ksoftirqd/200:31:302
232869997,1cyclictest28-21ksoftirqd/222:05:152
232869997,1cyclictest28-21ksoftirqd/221:40:212
232869994,2cyclictest240-21systemd-journal19:55:002
232869990,1cyclictest23592-21ntp_states00:15:172
232769994,5cyclictest0-21swapper/123:40:111
232769991,4cyclictest0-21swapper/121:14:551
232769991,2cyclictest0-21swapper/122:25:121
232769990,8cyclictest0-21swapper/123:37:111
232769990,6cyclictest0-21swapper/121:30:381
232769990,5cyclictest0-21swapper/122:48:321
232689998,1cyclictest9-21ksoftirqd/022:45:000
232689998,1cyclictest9-21ksoftirqd/022:25:050
232689998,1cyclictest9-21ksoftirqd/000:35:010
232689998,1cyclictest9-21ksoftirqd/000:15:130
232689997,1cyclictest585-21rs:main0
6073280,0sleep015930-21diskmemload23:50:400
232949988,0cyclictest35-21ksoftirqd/323:55:103
232949988,0cyclictest35-21ksoftirqd/322:00:133
232949988,0cyclictest35-21ksoftirqd/320:40:163
232949987,1cyclictest35-21ksoftirqd/322:30:143
232949987,1cyclictest35-21ksoftirqd/320:30:123
232949987,1cyclictest35-21ksoftirqd/300:05:133
232949986,1cyclictest1029-21snmpd23:22:333
232949986,1cyclictest1029-21snmpd22:21:133
232949986,1cyclictest1029-21snmpd20:52:163
232949986,1cyclictest1029-21snmpd20:13:453
232949981,4cyclictest503-21apt-get23:45:113
232949980,6cyclictest0-21swapper/323:35:163
232869988,0cyclictest28-21ksoftirqd/219:55:172
232869988,0cyclictest28-21ksoftirqd/219:15:102
232869987,1cyclictest28-21ksoftirqd/223:55:132
232869987,1cyclictest28-21ksoftirqd/223:33:182
232869987,1cyclictest28-21ksoftirqd/223:33:172
232869987,1cyclictest28-21ksoftirqd/222:20:142
232869987,1cyclictest28-21ksoftirqd/222:04:002
232869987,1cyclictest28-21ksoftirqd/221:55:122
232869987,1cyclictest28-21ksoftirqd/200:25:002
232869986,1cyclictest9648-21sh21:45:022
232869981,6cyclictest0-21swapper/219:14:582
232769981,6cyclictest0-21swapper/119:11:191
232769981,5cyclictest0-21swapper/123:55:131
232769980,5cyclictest0-21swapper/119:55:111
232689988,0cyclictest9-21ksoftirqd/021:15:130
232689987,1cyclictest9-21ksoftirqd/021:34:590
232689987,1cyclictest9-21ksoftirqd/019:50:140
232689986,1cyclictest9-21ksoftirqd/021:25:000
232689986,1cyclictest9-21ksoftirqd/021:15:000
232689986,1cyclictest9-21ksoftirqd/020:25:000
232689986,1cyclictest9-21ksoftirqd/020:25:000
232689983,4cyclictest9-21ksoftirqd/021:25:140
232689982,3cyclictest3368-21/usr/sbin/munin23:05:200
232689980,7cyclictest7159-21ssh23:10:020
232689980,7cyclictest11175-21cron00:00:000
232689980,1cyclictest2165-21ssh22:19:090
232689980,1cyclictest16601-21sh00:05:200
232949977,0cyclictest35-21ksoftirqd/322:15:133
232949977,0cyclictest35-21ksoftirqd/320:35:153
232949977,0cyclictest35-21ksoftirqd/300:25:133
232949976,1cyclictest35-21ksoftirqd/322:55:163
232949976,1cyclictest35-21ksoftirqd/322:45:013
232949976,1cyclictest35-21ksoftirqd/322:10:163
232949976,1cyclictest35-21ksoftirqd/321:25:223
232949976,1cyclictest35-21ksoftirqd/319:45:513
232949976,1cyclictest35-21ksoftirqd/300:35:003
232949976,1cyclictest35-21ksoftirqd/300:15:173
232949975,1cyclictest35-21ksoftirqd/321:40:143
232949975,1cyclictest1029-21snmpd21:33:143
232949975,1cyclictest1029-21snmpd19:55:053
232949975,1cyclictest1029-21snmpd19:51:423
232949975,1cyclictest0-21swapper/323:15:523
232949972,4cyclictest19413-21grep23:25:183
232949971,5cyclictest5916-21kworker/3:223:10:093
232949970,0cyclictest0-21swapper/320:27:393
232869976,1cyclictest61650irq/122-eno100:35:162
232869976,1cyclictest61650irq/122-eno100:05:172
232869976,1cyclictest28-21ksoftirqd/223:40:172
232869976,1cyclictest28-21ksoftirqd/223:25:122
232869976,1cyclictest28-21ksoftirqd/221:10:132
232869976,1cyclictest28-21ksoftirqd/220:55:122
232869975,1cyclictest61650irq/122-eno120:00:132
232869975,1cyclictest61650irq/122-eno100:00:182
232869975,1cyclictest29655-21ntpq22:55:182
232869975,1cyclictest28-21ksoftirqd/220:49:592
232869975,1cyclictest28-21ksoftirqd/220:40:132
232869975,1cyclictest28-21ksoftirqd/220:25:122
232869975,1cyclictest28-21ksoftirqd/200:25:172
232869975,1cyclictest1029-21snmpd20:36:552
232869974,1cyclictest28-21ksoftirqd/219:25:002
232869973,2cyclictest61650irq/122-eno122:15:192
232869971,1cyclictest0-21swapper/223:06:382
232869970,6cyclictest0-21swapper/220:08:332
232769976,1cyclictest0-21swapper/122:41:021
232769972,1cyclictest0-21swapper/100:20:131
232769971,3cyclictest0-21swapper/121:05:101
232769970,6cyclictest0-21swapper/120:10:151
232769970,4cyclictest0-21swapper/100:31:131
232769970,1cyclictest0-21swapper/123:03:351
232769970,1cyclictest0-21swapper/122:00:011
232769970,1cyclictest0-21swapper/121:42:541
232689976,1cyclictest9-21ksoftirqd/023:49:590
232689976,1cyclictest9-21ksoftirqd/023:00:120
232689976,1cyclictest1029-21snmpd20:54:230
232689975,1cyclictest9-21ksoftirqd/019:25:000
232689975,1cyclictest30583-21perl00:25:150
232689975,1cyclictest27241-21ssh22:52:110
232689975,1cyclictest1029-21snmpd20:08:570
232689972,4cyclictest31256-21/usr/sbin/munin19:25:190
232689971,5cyclictest27647-21perf22:10:010
232689971,5cyclictest18778-21ssh00:10:130
232689970,7cyclictest0-21swapper/020:56:380
232689970,6cyclictest28461-21ssh22:55:070
232689970,6cyclictest20648-21aten_r1power_cu22:00:120
232689970,6cyclictest1560-21apt-get20:40:000
232689970,6cyclictest15113-21munin-run20:00:000
232689970,6cyclictest10138-21cat21:45:130
232689970,6cyclictest0-21swapper/021:05:170
232689970,6cyclictest0-21swapper/020:15:200
232689970,5cyclictest1029-21snmpd23:25:280
232689970,3cyclictest0-21swapper/020:25:120
232689970,1cyclictest6129-21ssh21:40:120
232689970,1cyclictest4798-21ssh22:21:070
232689970,1cyclictest4284-21wc20:45:000
232689970,1cyclictest31541-21ssh23:41:390
232689970,1cyclictest240-21systemd-journal23:35:010
232689970,1cyclictest240-21systemd-journal23:35:000
232689970,1cyclictest15930-21diskmemload00:01:300
232689970,1cyclictest12682-21ssh22:32:540
19527270,1sleep30-21swapper/321:57:453
30472260,0sleep00-21swapper/020:30:130
232949966,0cyclictest35-21ksoftirqd/323:30:173
232949966,0cyclictest35-21ksoftirqd/323:30:173
232949966,0cyclictest35-21ksoftirqd/321:50:133
232949965,1cyclictest6549-21ssh00:35:203
232949965,1cyclictest35-21ksoftirqd/322:05:163
232949965,1cyclictest35-21ksoftirqd/321:10:153
232949965,1cyclictest35-21ksoftirqd/321:00:123
232949965,1cyclictest35-21ksoftirqd/319:44:593
232949965,1cyclictest35-21ksoftirqd/300:20:163
232949965,1cyclictest25367-21ssh21:20:213
232949965,1cyclictest20127-21ssh00:10:193
232949965,1cyclictest14413-21ssh00:03:483
232949965,1cyclictest1029-21snmpd20:21:073
232949965,1cyclictest1029-21snmpd20:21:063
232949964,1cyclictest693-21runrttasks19:35:433
232949963,3cyclictest0-21swapper/323:00:143
232949962,3cyclictest3563-21tr21:35:173
232949961,2cyclictest15724-21cstates20:00:113
232949961,0cyclictest15930-21diskmemload23:41:183
232949960,4cyclictest0-21swapper/320:45:143
232869966,0cyclictest61650irq/122-eno121:05:192
232869966,0cyclictest61650irq/122-eno120:15:192
232869965,1cyclictest61650irq/122-eno119:45:102
232869965,1cyclictest25647-21kworker/2:020:20:142
232869965,1cyclictest25647-21kworker/2:020:20:132
232869964,1cyclictest61650irq/122-eno123:10:112
232869964,1cyclictest0-21swapper/220:30:102
232769966,0cyclictest0-21swapper/123:46:531
232769961,3cyclictest0-21swapper/100:27:321
232769961,3cyclictest0-21swapper/100:10:001
232769960,6cyclictest0-21swapper/123:27:031
232769960,6cyclictest0-21swapper/122:58:111
232769960,6cyclictest0-21swapper/121:27:591
232769960,6cyclictest0-21swapper/120:47:551
232769960,6cyclictest0-21swapper/119:46:471
232769960,6cyclictest0-21swapper/119:22:101
232769960,5cyclictest0-21swapper/122:20:401
232769960,5cyclictest0-21swapper/121:02:431
232769960,5cyclictest0-21swapper/120:39:281
232769960,3cyclictest0-21swapper/122:00:011
232769960,3cyclictest0-21swapper/121:37:371
232769960,1cyclictest0-21swapper/119:43:541
232689965,1cyclictest21128-21ssh22:45:010
232689965,1cyclictest1029-21snmpd20:46:190
232689960,6cyclictest0-21swapper/020:02:150
232689960,6cyclictest0-21swapper/019:45:110
232689960,6cyclictest0-21swapper/019:40:100
232689960,6cyclictest0-21swapper/019:15:590
232689960,1cyclictest0-21swapper/019:36:350
232949953,1cyclictest35-21ksoftirqd/319:30:133
232949950,3cyclictest0-21swapper/320:55:123
232949950,2cyclictest0-21swapper/319:20:133
232949950,1cyclictest0-21swapper/319:15:113
232869954,1cyclictest28-21ksoftirqd/220:50:122
232769955,0cyclictest0-21swapper/119:51:581
232769954,1cyclictest0-21swapper/123:20:111
232769954,1cyclictest0-21swapper/119:29:011
232769953,0cyclictest0-21swapper/100:11:061
232769951,3cyclictest0-21swapper/120:00:101
232769950,5cyclictest0-21swapper/123:10:331
232769950,5cyclictest0-21swapper/120:33:371
232769950,5cyclictest0-21swapper/120:09:251
232769950,4cyclictest0-21swapper/122:17:401
232769950,4cyclictest0-21swapper/120:15:031
232769950,3cyclictest0-21swapper/123:31:341
232769950,3cyclictest0-21swapper/123:31:341
232769950,3cyclictest0-21swapper/122:50:121
232769950,3cyclictest0-21swapper/122:05:131
232769950,3cyclictest0-21swapper/121:20:521
232769950,3cyclictest0-21swapper/119:30:111
232769950,2cyclictest0-21swapper/121:45:111
232769950,2cyclictest0-21swapper/121:18:371
232769950,0cyclictest0-21swapper/121:50:081
232689952,2cyclictest12086-21grep21:00:130
232689950,4cyclictest20058-21/usr/sbin/munin20:10:200
27059240,1sleep1111rcu_preempt19:15:131
232949940,1cyclictest23484-21apt-get19:10:113
232769943,1cyclictest5370-21chrt19:36:241
232769942,2cyclictest0-21swapper/122:30:301
232769942,1cyclictest0-21swapper/120:55:121
232769941,2cyclictest0-21swapper/120:20:121
232769941,2cyclictest0-21swapper/120:20:111
232769940,4cyclictest0-21swapper/122:10:171
232769940,3cyclictest0-21swapper/120:40:211
232769940,3cyclictest0-21swapper/120:25:141
232769940,2cyclictest0-21swapper/100:00:121
232769940,1cyclictest0-21swapper/123:05:131
232769940,1cyclictest0-21swapper/120:50:111
232769940,1cyclictest0-21swapper/100:15:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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