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2026-03-19 - 09:38
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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 Thu Mar 19, 2026 00:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
76142201160,27sleep20-21swapper/219:07:252
75952200160,26sleep30-21swapper/319:07:113
75012198159,26sleep10-21swapper/119:05:561
77262196142,42sleep00-21swapper/019:08:530
297462450,0sleep00-21swapper/000:31:520
790899120,12cyclictest0-21swapper/122:35:111
790799120,12cyclictest0-21swapper/019:55:100
790799120,0cyclictest0-21swapper/000:00:120
7914991111,0cyclictest0-21swapper/222:15:132
7914991110,1cyclictest28-21ksoftirqd/221:15:002
790799110,9cyclictest931-21diskmemload22:30:120
792299108,1cyclictest35-21ksoftirqd/323:45:003
792299100,4cyclictest0-21swapper/322:30:113
791499109,1cyclictest28-21ksoftirqd/222:05:012
791499104,5cyclictest21416-21kworker/u8:222:28:272
791499100,8cyclictest32455-21kworker/u8:122:30:432
790799105,5cyclictest9375-21/usr/sbin/munin23:25:150
790799102,4cyclictest10294-21cat19:15:010
170022100,1sleep3931-21diskmemload21:29:583
79229996,2cyclictest707-21snmpd00:37:113
79229990,4cyclictest31245-21apt-get21:05:123
79149998,1cyclictest28-21ksoftirqd/221:00:002
79149998,1cyclictest28-21ksoftirqd/219:20:012
79149990,9cyclictest0-21swapper/223:37:332
79079997,1cyclictest9-21ksoftirqd/019:29:590
79079994,4cyclictest0-21swapper/021:45:180
79079994,1cyclictest25574-21df23:45:120
27280290,1sleep30-21swapper/322:24:043
79229986,1cyclictest707-21snmpd23:26:503
79229986,1cyclictest707-21snmpd23:20:243
79229986,1cyclictest707-21snmpd22:53:133
79229986,1cyclictest707-21snmpd22:12:253
79229986,1cyclictest707-21snmpd22:09:003
79229986,1cyclictest707-21snmpd22:08:593
79229986,1cyclictest707-21snmpd22:02:483
79229986,1cyclictest707-21snmpd21:45:243
79229986,1cyclictest707-21snmpd21:42:233
79229986,1cyclictest707-21snmpd20:50:583
79229986,1cyclictest707-21snmpd20:38:103
79229986,1cyclictest707-21snmpd00:06:253
79229986,1cyclictest35-21ksoftirqd/320:00:133
79229983,4cyclictest2482-1kworker/u9:123:56:203
79229980,5cyclictest0-21swapper/322:25:123
79229980,3cyclictest0-21swapper/300:10:103
79149987,1cyclictest28-21ksoftirqd/222:55:012
79149987,1cyclictest28-21ksoftirqd/219:50:002
79149987,1cyclictest0-21swapper/221:50:162
79149986,1cyclictest707-21snmpd23:49:102
79149986,1cyclictest61650irq/122-eno123:55:172
79149986,1cyclictest61650irq/122-eno123:50:122
79149986,1cyclictest61650irq/122-eno122:50:012
79149986,1cyclictest61650irq/122-eno122:20:172
79149986,1cyclictest61650irq/122-eno121:20:242
79149986,1cyclictest28-21ksoftirqd/221:20:012
79149986,1cyclictest28-21ksoftirqd/200:05:162
79149984,2cyclictest240-21systemd-journal00:15:002
79149982,5cyclictest15814-21apt-get00:15:092
79149980,5cyclictest0-21swapper/220:35:122
79149980,3cyclictest0-21swapper/220:30:092
79149980,2cyclictest0-21swapper/221:05:122
79089980,1cyclictest0-21swapper/122:55:191
79089980,1cyclictest0-21swapper/121:40:111
79079987,1cyclictest9-21ksoftirqd/022:10:010
79079987,1cyclictest9-21ksoftirqd/022:10:010
79079987,1cyclictest9-21ksoftirqd/019:18:360
79079987,1cyclictest6482-21ssh21:56:140
79079987,1cyclictest4685-21ssh21:14:440
79079987,1cyclictest25342-21ssh23:03:050
79079987,1cyclictest22802-21ssh23:40:230
79079982,5cyclictest981-21perf21:10:010
79079981,6cyclictest23397-21ssh22:19:020
6567280,0sleep30-21swapper/300:01:453
27862280,0sleep30-21swapper/323:47:593
79229975,1cyclictest707-21snmpd23:08:283
79229975,1cyclictest707-21snmpd22:19:223
79229975,1cyclictest707-21snmpd21:39:053
79229975,1cyclictest707-21snmpd20:47:043
79229975,1cyclictest707-21snmpd20:33:033
79229975,1cyclictest707-21snmpd20:06:353
79229975,1cyclictest707-21snmpd19:50:263
79229975,1cyclictest707-21snmpd19:36:503
79229975,1cyclictest707-21snmpd19:31:473
79229975,1cyclictest707-21snmpd19:15:553
79229975,1cyclictest707-21snmpd00:31:283
79229975,1cyclictest707-21snmpd00:20:033
79229975,1cyclictest707-21snmpd00:17:223
79229971,3cyclictest0-21swapper/320:10:103
79229971,2cyclictest0-21swapper/322:56:233
79149976,1cyclictest61650irq/122-eno123:44:212
79149976,1cyclictest61650irq/122-eno123:28:282
79149976,1cyclictest61650irq/122-eno123:20:532
79149976,1cyclictest61650irq/122-eno122:10:182
79149976,1cyclictest61650irq/122-eno121:30:152
79149976,1cyclictest61650irq/122-eno121:25:182
79149976,1cyclictest61650irq/122-eno100:35:122
79149976,1cyclictest61650irq/122-eno100:20:062
79149976,1cyclictest61650irq/122-eno100:02:262
79149975,1cyclictest707-21snmpd20:26:422
79149975,1cyclictest61650irq/122-eno121:55:162
79149975,1cyclictest61650irq/122-eno121:35:182
79149975,1cyclictest61650irq/122-eno120:41:362
79149973,2cyclictest240-21systemd-journal19:55:002
79149973,2cyclictest240-21systemd-journal19:30:002
79149970,6cyclictest0-21swapper/223:02:152
79149970,4cyclictest0-21swapper/222:40:022
79089970,6cyclictest0-21swapper/120:58:491
79089970,3cyclictest0-21swapper/123:55:121
79089970,2cyclictest0-21swapper/123:19:241
79089970,1cyclictest0-21swapper/123:00:111
79089970,1cyclictest0-21swapper/119:10:121
79089970,1cyclictest0-21swapper/100:26:511
79079976,1cyclictest9-21ksoftirqd/020:41:360
79079976,1cyclictest7226-21/usr/sbin/munin20:15:180
79079976,1cyclictest5455-21ssh23:20:000
79079976,1cyclictest30933-21ssh23:10:140
79079976,1cyclictest18798-21ssh00:18:260
79079976,1cyclictest18387-21telnet19:30:120
79079976,1cyclictest14415-21ssh00:12:020
79079976,1cyclictest12800-21ssh22:45:320
79079975,1cyclictest9-21ksoftirqd/023:05:150
79079975,1cyclictest707-21snmpd20:02:080
79079975,1cyclictest29104-21telnet23:50:110
79079975,1cyclictest16343-21ssh22:10:090
79079975,1cyclictest14673-21ssh21:25:190
79079972,1cyclictest8712-21tr22:00:110
79079972,1cyclictest12172-21/usr/sbin/munin20:25:100
79079971,5cyclictest17129-21/usr/sbin/munin23:35:200
79079970,6cyclictest9584-21cstates21:20:140
79079970,6cyclictest8705-21sed22:40:200
79079970,6cyclictest8113-21ssh00:05:090
79079970,6cyclictest5839-21ntp_states20:10:180
79079970,6cyclictest444-21telnet23:55:130
79079970,6cyclictest404-21ssh21:50:010
79079970,6cyclictest31236-21/usr/sbin/munin00:35:180
79079970,6cyclictest27941-21/usr/sbin/munin22:25:210
79079970,6cyclictest25179-21ssh21:40:050
79079970,6cyclictest24751-21ntpq00:25:170
79079970,6cyclictest24468-21diskstats20:50:140
79079970,6cyclictest22076-21perl21:35:130
79079970,6cyclictest13487-21ssh23:30:130
79079970,6cyclictest0-21swapper/022:55:190
79079970,6cyclictest0-21swapper/022:35:180
79079970,4cyclictest24082-21/usr/sbin/munin22:20:160
79079970,1cyclictest5068-21/usr/sbin/munin21:15:140
79079970,1cyclictest28442-21perf21:00:000
79079970,1cyclictest24816-21chrt19:41:480
79079970,1cyclictest21977-21ssh00:21:390
79079970,1cyclictest20404-21ssh21:33:250
79079970,1cyclictest1635-21/usr/sbin/munin23:15:180
79079970,1cyclictest15891-21needreboot22:50:160
79229965,1cyclictest7981-21ssh21:17:493
79229965,1cyclictest707-21snmpd20:41:403
79229965,1cyclictest707-21snmpd20:23:513
79229965,1cyclictest5076-21ssh22:35:313
79229965,1cyclictest4378-21ssh23:17:493
79229965,1cyclictest30200-21ssh23:10:103
79229965,1cyclictest24831-21ssh23:01:443
79229965,1cyclictest19886-21ssh21:32:083
79229965,1cyclictest15575-21ssh23:31:443
79229965,1cyclictest13417-21ssh22:47:073
79229964,1cyclictest707-21snmpd23:37:423
79229964,1cyclictest707-21snmpd19:14:063
79229964,1cyclictest35-21ksoftirqd/319:55:113
79229961,4cyclictest21416-21kworker/u8:221:53:503
79229960,6cyclictest0-21swapper/322:42:003
79229960,3cyclictest0-21swapper/321:10:363
79229960,2cyclictest0-21swapper/321:20:113
79229960,2cyclictest0-21swapper/300:29:073
79149966,0cyclictest61650irq/122-eno123:31:002
79149966,0cyclictest61650irq/122-eno123:10:332
79149966,0cyclictest61650irq/122-eno122:55:202
79149966,0cyclictest61650irq/122-eno122:35:152
79149966,0cyclictest61650irq/122-eno121:45:132
79149966,0cyclictest61650irq/122-eno121:40:092
79149966,0cyclictest61650irq/122-eno121:01:362
79149966,0cyclictest61650irq/122-eno120:50:192
79149966,0cyclictest61650irq/122-eno120:10:152
79149966,0cyclictest61650irq/122-eno119:42:452
79149966,0cyclictest61650irq/122-eno119:37:432
79149966,0cyclictest61650irq/122-eno100:30:062
79149965,1cyclictest61650irq/122-eno123:06:192
79149965,1cyclictest61650irq/122-eno122:05:022
79149965,1cyclictest61650irq/122-eno122:05:022
79149965,1cyclictest28-21ksoftirqd/220:15:012
79149965,1cyclictest14659-21ntpq19:20:162
79149964,1cyclictest707-21snmpd19:10:222
79149964,1cyclictest61650irq/122-eno120:00:162
79149964,1cyclictest3478-21ntpq20:05:172
79149960,2cyclictest3100-21/usr/sbin/munin23:15:182
79149960,1cyclictest240-21systemd-journal00:24:592
79089960,6cyclictest0-21swapper/121:11:291
79089960,6cyclictest0-21swapper/120:48:461
79089960,6cyclictest0-21swapper/120:07:271
79089960,6cyclictest0-21swapper/119:51:311
79089960,6cyclictest0-21swapper/119:43:081
79089960,6cyclictest0-21swapper/100:08:431
79089960,5cyclictest0-21swapper/121:55:301
79089960,5cyclictest0-21swapper/119:45:141
79089960,4cyclictest0-21swapper/100:30:171
79089960,3cyclictest0-21swapper/123:36:091
79089960,3cyclictest0-21swapper/123:32:411
79089960,2cyclictest0-21swapper/122:06:021
79089960,2cyclictest0-21swapper/122:06:021
79089960,2cyclictest0-21swapper/122:00:111
79089960,2cyclictest0-21swapper/121:31:341
79089960,1cyclictest0-21swapper/121:20:111
79089960,1cyclictest0-21swapper/100:10:091
79089960,0cyclictest0-21swapper/122:13:041
79079965,1cyclictest21783-21pmu-power19:35:170
79079960,6cyclictest0-21swapper/021:00:150
79079960,6cyclictest0-21swapper/019:45:070
79079960,5cyclictest2319-21/usr/sbin/munin20:05:120
79079960,5cyclictest21601-21/usr/sbin/munin20:45:130
79079960,4cyclictest13652-21aten2.4-expect19:20:110
79079960,3cyclictest0-21swapper/020:30:100
79079960,2cyclictest0-21swapper/020:20:110
79079960,0cyclictest0-21swapper/020:35:130
17289260,1sleep10-21swapper/122:52:131
8345250,0sleep10-21swapper/121:18:411
79229955,0cyclictest0-21swapper/319:23:253
79229954,1cyclictest707-21snmpd19:45:343
79229953,2cyclictest27028-1kworker/u9:023:52:523
79229953,1cyclictest7731-21df20:15:133
79229953,1cyclictest707-21snmpd20:56:123
79229953,1cyclictest559-21cron19:40:003
79229953,1cyclictest4420-21aten_r1power_fr21:55:113
79229950,2cyclictest0-21swapper/321:00:133
79149955,0cyclictest61650irq/122-eno120:45:112
79149954,1cyclictest61650irq/122-eno120:20:102
79149953,1cyclictest30016-21/usr/sbin/munin19:55:162
79149950,0cyclictest0-21swapper/219:30:112
79089955,0cyclictest0-21swapper/123:10:401
79089955,0cyclictest0-21swapper/123:05:451
79089955,0cyclictest0-21swapper/122:49:161
79089955,0cyclictest0-21swapper/122:30:351
79089955,0cyclictest0-21swapper/121:51:011
79089951,4cyclictest0-21swapper/120:24:501
79089951,4cyclictest0-21swapper/119:17:371
79089951,2cyclictest0-21swapper/120:15:171
79089951,1cyclictest0-21swapper/121:35:181
79089950,5cyclictest0-21swapper/123:26:171
79089950,5cyclictest0-21swapper/120:30:201
79089950,5cyclictest0-21swapper/120:27:031
79089950,5cyclictest0-21swapper/120:14:131
79089950,5cyclictest0-21swapper/119:55:241
79089950,5cyclictest0-21swapper/119:28:501
79089950,3cyclictest0-21swapper/123:42:211
79089950,1cyclictest0-21swapper/123:50:091
79089950,1cyclictest0-21swapper/123:22:431
79089950,1cyclictest0-21swapper/122:40:051
79089950,1cyclictest0-21swapper/122:25:111
79089950,1cyclictest0-21swapper/119:25:011
79089950,1cyclictest0-21swapper/100:21:091
79089950,0cyclictest0-21swapper/123:48:021
79089950,0cyclictest0-21swapper/119:36:081
79079954,1cyclictest27695-21telnet19:50:120
79229942,1cyclictest12176-21apt-get20:25:113
79229941,2cyclictest15879-21apt-get19:25:113
79089944,0cyclictest0-21swapper/121:02:331
79089944,0cyclictest0-21swapper/100:15:061
79089942,1cyclictest0-21swapper/122:17:451
79089941,2cyclictest0-21swapper/121:05:191
79089941,1cyclictest0-21swapper/120:35:151
79089940,4cyclictest0-21swapper/120:43:471
79089940,2cyclictest0-21swapper/122:20:301
79089940,2cyclictest0-21swapper/100:00:461
79089940,1cyclictest0-21swapper/121:45:261
79089940,1cyclictest0-21swapper/121:25:101
79089940,1cyclictest0-21swapper/100:35:251
79089940,0cyclictest0-21swapper/120:50:201
79089940,0cyclictest0-21swapper/120:00:211
79089930,2cyclictest0-21swapper/119:30:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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