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2026-08-24 - 13:30
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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 Mon Aug 24, 2026 12:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
231872210156,42sleep00-21swapper/007:07:220
232972209130,26sleep30-21swapper/307:08:483
232962201163,25sleep20-21swapper/207:08:472
231102199161,25sleep10-21swapper/107:06:211
235262690,0sleep20-21swapper/209:19:352
290392680,0sleep10-21swapper/108:25:191
2349199133,5cyclictest2045-21apt-get09:35:000
23491991311,1cyclictest9-21ksoftirqd/010:15:010
23491991311,1cyclictest9-21ksoftirqd/009:20:170
23491991311,1cyclictest9-21ksoftirqd/009:00:000
23515991212,0cyclictest0-21swapper/212:25:162
23515991210,1cyclictest28-21ksoftirqd/208:55:002
2349199129,1cyclictest9-21ksoftirqd/007:25:000
23491991210,1cyclictest9-21ksoftirqd/007:50:000
2352399119,1cyclictest35-21ksoftirqd/308:10:123
23523991110,1cyclictest35-21ksoftirqd/312:40:003
23523991110,1cyclictest35-21ksoftirqd/312:10:003
2351599119,1cyclictest28-21ksoftirqd/210:25:152
2351599119,1cyclictest28-21ksoftirqd/209:55:002
2351599119,1cyclictest28-21ksoftirqd/209:35:002
2351599118,2cyclictest28-21ksoftirqd/208:25:002
2349199119,1cyclictest9-21ksoftirqd/009:30:000
2349199119,1cyclictest9-21ksoftirqd/007:15:000
23491991110,1cyclictest9-21ksoftirqd/007:55:000
2352399109,1cyclictest35-21ksoftirqd/311:40:003
2352399109,1cyclictest35-21ksoftirqd/308:50:003
2352399107,1cyclictest35-21ksoftirqd/308:25:003
2352399100,5cyclictest0-21swapper/311:30:113
2351599109,1cyclictest28-21ksoftirqd/212:15:002
2351599109,1cyclictest28-21ksoftirqd/210:40:002
2351599109,1cyclictest28-21ksoftirqd/207:35:012
2350299100,3cyclictest0-21swapper/107:20:121
2349199109,1cyclictest9-21ksoftirqd/012:00:000
2349199109,1cyclictest9-21ksoftirqd/011:50:130
2349199109,1cyclictest9-21ksoftirqd/011:20:130
2349199109,1cyclictest9-21ksoftirqd/010:05:130
2349199109,1cyclictest9-21ksoftirqd/008:30:130
2349199108,1cyclictest9-21ksoftirqd/009:15:000
2349199108,1cyclictest9-21ksoftirqd/007:40:120
2349199104,4cyclictest15340-21cron10:40:000
2349199103,6cyclictest23317-21latency_hist10:05:000
2349199100,2cyclictest0-21swapper/008:45:120
235239998,1cyclictest35-21ksoftirqd/311:45:003
235239998,1cyclictest35-21ksoftirqd/311:25:003
235239998,1cyclictest35-21ksoftirqd/310:15:003
235239998,1cyclictest35-21ksoftirqd/310:15:003
235239998,1cyclictest35-21ksoftirqd/308:05:003
235239990,2cyclictest0-21swapper/310:05:123
235159998,1cyclictest28-21ksoftirqd/212:00:142
235159998,1cyclictest28-21ksoftirqd/211:15:132
235159998,0cyclictest6383-21kworker/2:010:51:012
235159997,1cyclictest297632sleep210:13:272
235159997,1cyclictest28-21ksoftirqd/212:20:002
235159992,6cyclictest18207-21apt-get11:30:112
235159990,8cyclictest28328-21aten2.4-expect12:30:132
234919999,0cyclictest9-21ksoftirqd/012:25:140
234919998,1cyclictest9-21ksoftirqd/012:25:000
234919998,1cyclictest9-21ksoftirqd/011:45:120
234919998,1cyclictest9-21ksoftirqd/011:06:260
234919998,1cyclictest9-21ksoftirqd/009:55:150
234919998,1cyclictest9-21ksoftirqd/009:35:120
234919998,1cyclictest9-21ksoftirqd/007:35:150
234919997,1cyclictest9-21ksoftirqd/010:50:130
234919992,3cyclictest6985-21apt-get12:00:120
234919990,8cyclictest0-21swapper/008:15:180
234919990,7cyclictest16331-21diskmemload09:15:030
235239988,0cyclictest35-21ksoftirqd/308:45:003
235239986,1cyclictest35-21ksoftirqd/307:25:013
235239986,1cyclictest11301-21snmpd08:57:413
235239986,1cyclictest11301-21snmpd08:32:293
235239985,2cyclictest11301-21snmpd11:58:553
235239981,5cyclictest16331-21diskmemload11:49:333
235239980,7cyclictest223032sleep310:49:563
235239980,4cyclictest0-21swapper/307:55:003
235159987,1cyclictest28-21ksoftirqd/208:15:002
235159986,1cyclictest61650irq/122-eno111:00:192
235159986,1cyclictest61650irq/122-eno111:00:002
235159986,1cyclictest61650irq/122-eno110:24:252
235159986,1cyclictest61650irq/122-eno110:10:002
235159986,1cyclictest28-21ksoftirqd/208:30:012
235159986,1cyclictest28-21ksoftirqd/207:55:002
235159986,1cyclictest28-21ksoftirqd/207:15:002
235159986,1cyclictest11301-21snmpd09:46:092
235159981,4cyclictest24932-21apt-get11:40:012
235159981,4cyclictest20467-21apt-get08:10:122
234919988,0cyclictest9-21ksoftirqd/012:10:140
234919988,0cyclictest9-21ksoftirqd/010:25:200
234919987,1cyclictest9-21ksoftirqd/011:30:150
234919987,1cyclictest9-21ksoftirqd/010:55:140
234919987,1cyclictest9-21ksoftirqd/010:45:140
234919987,1cyclictest9-21ksoftirqd/007:30:120
234919987,1cyclictest561-21nscd11:12:330
234919986,1cyclictest9-21ksoftirqd/012:30:130
234919986,1cyclictest11301-21snmpd09:49:330
234919986,1cyclictest11301-21snmpd08:29:430
234919986,1cyclictest11301-21snmpd08:21:570
234919981,5cyclictest16331-21diskmemload11:44:340
234919980,7cyclictest31421-21ssh10:15:140
234919980,7cyclictest0-21swapper/012:05:200
234919980,4cyclictest9282-21perf08:55:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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