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2026-03-26 - 23:32
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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 100 highest latencies:
System rack1slot1.osadl.org (updated Thu Mar 26, 2026 12:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94862230157,24sleep00-21swapper/007:09:170
92942216153,50sleep20-21swapper/207:06:492
93352210156,42sleep10-21swapper/107:07:211
74282198159,25sleep30-21swapper/307:05:063
105272690,5sleep09-21ksoftirqd/008:15:170
235552170,0sleep10-21swapper/107:35:161
151892160,1sleep015190-21needreboot12:10:180
9636991513,1cyclictest9-21ksoftirqd/009:20:000
9636991211,1cyclictest9-21ksoftirqd/010:15:010
9636991210,1cyclictest9-21ksoftirqd/011:55:010
963699113,4cyclictest240-21systemd-journal10:10:000
9636991110,1cyclictest9-21ksoftirqd/008:40:010
966099109,1cyclictest35-21ksoftirqd/307:55:003
9652991010,0cyclictest0-21swapper/208:10:182
965299100,1cyclictest24662-21hddtemp_smartct09:35:132
964699100,6cyclictest0-21swapper/110:23:111
963699102,4cyclictest1428-21latency_hist10:29:590
963699100,5cyclictest6106-21perf12:00:010
96609998,1cyclictest35-21ksoftirqd/312:40:003
96609990,8cyclictest0-21swapper/309:29:553
96529993,6cyclictest31752-21kworker/u8:011:11:182
96529990,9cyclictest0-21swapper/209:26:302
96529990,8cyclictest19872-21latency_hist07:29:592
96529990,7cyclictest11999-21munin-node08:53:452
96369998,1cyclictest9-21ksoftirqd/009:28:010
96369997,1cyclictest9-21ksoftirqd/009:40:000
96369997,1cyclictest9-21ksoftirqd/007:45:000
96369997,1cyclictest9-21ksoftirqd/007:30:100
96369990,3cyclictest0-21swapper/007:50:190
96609988,0cyclictest35-21ksoftirqd/311:33:043
96609986,1cyclictest707-21snmpd09:58:043
96609986,1cyclictest707-21snmpd08:35:143
96609986,1cyclictest707-21snmpd07:19:023
96609982,1cyclictest3519-21diskmemload11:29:593
96609980,3cyclictest707-21snmpd10:50:053
96529986,1cyclictest707-21snmpd12:22:302
96529986,1cyclictest707-21snmpd11:30:292
96529986,1cyclictest707-21snmpd11:02:452
96529986,1cyclictest707-21snmpd10:41:142
96529986,1cyclictest707-21snmpd10:22:012
96529986,1cyclictest707-21snmpd08:31:262
96529986,1cyclictest61650irq/122-eno112:15:112
96529986,1cyclictest61650irq/122-eno110:15:202
96529986,1cyclictest61650irq/122-eno108:40:002
96529986,1cyclictest1747-21ntpd09:15:582
96529980,8cyclictest0-21swapper/209:34:352
96529980,5cyclictest707-21snmpd10:30:452
96369986,1cyclictest9-21ksoftirqd/009:00:000
96369986,1cyclictest707-21snmpd10:37:150
96369984,3cyclictest3519-21diskmemload12:38:260
96369984,2cyclictest240-21systemd-journal09:10:010
96369980,7cyclictest0-21swapper/010:16:320
96369980,7cyclictest0-21swapper/009:40:210
96369980,6cyclictest21851-21hostname12:20:100
96369980,4cyclictest20638-21latency_hist10:55:010
96609976,1cyclictest707-21snmpd11:50:103
96609976,1cyclictest707-21snmpd10:39:413
96609976,1cyclictest707-21snmpd09:04:513
96609976,1cyclictest707-21snmpd08:29:013
96609976,0cyclictest3519-21diskmemload11:07:003
96609975,1cyclictest707-21snmpd09:53:423
96609975,1cyclictest707-21snmpd07:57:303
96609975,1cyclictest24763-21apt-get11:00:113
96609975,1cyclictest2272-21cat09:05:143
96609974,1cyclictest3519-21diskmemload12:12:013
96609973,3cyclictest11999-21munin-node09:15:223
96609973,2cyclictest0-21swapper/307:15:003
96609970,6cyclictest19993-21kworker/u8:110:26:223
96609970,4cyclictest548-21systemd-logind07:45:203
96609970,2cyclictest0-21swapper/312:25:123
96529976,1cyclictest61650irq/122-eno112:11:322
96529976,1cyclictest61650irq/122-eno111:49:382
96529976,1cyclictest61650irq/122-eno111:20:102
96529976,1cyclictest61650irq/122-eno109:59:272
96529976,1cyclictest61650irq/122-eno109:52:252
96529976,1cyclictest61650irq/122-eno109:10:482
96529976,0cyclictest61650irq/122-eno112:05:132
96529976,0cyclictest61650irq/122-eno111:40:092
96529976,0cyclictest1747-21ntpd10:05:592
96529975,1cyclictest707-21snmpd12:33:182
96529975,1cyclictest707-21snmpd11:51:172
96529975,1cyclictest707-21snmpd10:03:432
96529975,1cyclictest707-21snmpd10:03:432
96529975,1cyclictest61650irq/122-eno111:15:132
96529975,1cyclictest61650irq/122-eno111:05:102
96529975,1cyclictest61650irq/122-eno109:45:222
96529975,1cyclictest11694-21awk08:20:012
96529972,2cyclictest14256-21memory10:45:172
96529972,1cyclictest0-21swapper/212:02:052
96529970,1cyclictest707-21snmpd10:55:042
96469971,6cyclictest0-21swapper/111:37:371
96469971,3cyclictest0-21swapper/112:25:181
96469971,1cyclictest0-21swapper/108:54:281
96469970,6cyclictest0-21swapper/109:20:031
96469970,5cyclictest0-21swapper/109:58:091
96469970,4cyclictest0-21swapper/110:55:111
96469970,4cyclictest0-21swapper/110:00:481
96469970,4cyclictest0-21swapper/110:00:481
96469970,1cyclictest0-21swapper/110:28:391
96469970,1cyclictest0-21swapper/108:57:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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