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2026-04-20 - 06:32
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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 Mon Apr 20, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254002211172,26sleep10-21swapper/119:06:281
256452209147,20sleep00-21swapper/019:09:400
235582201162,26sleep30-21swapper/319:05:043
254632198161,24sleep20-21swapper/219:07:182
118722830,0sleep10-21swapper/100:30:201
3892750,1sleep0391-21proc_pri22:50:190
25783991513,1cyclictest28-21ksoftirqd/222:00:002
23802150,0sleep20-21swapper/222:54:222
25766991412,1cyclictest9-21ksoftirqd/022:50:000
214642140,0sleep00-21swapper/021:53:470
25766991311,1cyclictest9-21ksoftirqd/022:00:000
25766991210,1cyclictest9-21ksoftirqd/000:35:140
2578399119,1cyclictest28-21ksoftirqd/219:35:012
2578399110,11cyclictest0-21swapper/222:28:042
2576699119,1cyclictest9-21ksoftirqd/000:20:000
2576699119,1cyclictest10113-21dump-pmu-power00:29:590
25766991110,1cyclictest9-21ksoftirqd/023:20:140
25766991110,1cyclictest9-21ksoftirqd/020:25:010
2579199108,1cyclictest35-21ksoftirqd/320:40:003
2579199108,1cyclictest15655-21/usr/sbin/munin19:55:173
2578399109,1cyclictest28-21ksoftirqd/220:59:592
2578399109,1cyclictest28-21ksoftirqd/200:25:002
2578399108,1cyclictest28-21ksoftirqd/222:20:012
2576699109,1cyclictest9-21ksoftirqd/023:10:010
2576699109,1cyclictest9-21ksoftirqd/022:30:160
2576699109,1cyclictest9-21ksoftirqd/021:15:000
2576699109,1cyclictest9-21ksoftirqd/020:54:590
2576699108,1cyclictest9-21ksoftirqd/021:10:000
29902290,0sleep10-21swapper/100:11:441
257919997,1cyclictest35-21ksoftirqd/319:50:003
257919990,7cyclictest0-21swapper/319:20:123
257919990,2cyclictest0-21swapper/323:40:113
257839999,0cyclictest28-21ksoftirqd/222:20:182
257839998,1cyclictest28-21ksoftirqd/223:20:192
257839998,1cyclictest28-21ksoftirqd/221:45:002
257839998,1cyclictest28-21ksoftirqd/219:50:002
257839997,1cyclictest28-21ksoftirqd/220:00:002
257669998,1cyclictest9-21ksoftirqd/022:55:110
257669998,1cyclictest9-21ksoftirqd/021:30:130
257669998,1cyclictest9-21ksoftirqd/020:05:000
257669998,1cyclictest9-21ksoftirqd/019:15:010
257669998,0cyclictest9-21ksoftirqd/023:55:010
257669998,0cyclictest9-21ksoftirqd/023:55:000
257669997,1cyclictest9-21ksoftirqd/023:19:590
257669997,1cyclictest9-21ksoftirqd/022:15:140
257669990,4cyclictest0-21swapper/023:54:230
30201280,0sleep20-21swapper/221:22:592
257919986,1cyclictest35-21ksoftirqd/319:55:003
257919986,1cyclictest17998-21snmpd22:21:213
257919986,1cyclictest17998-21snmpd21:21:393
257919986,1cyclictest17998-21snmpd21:01:423
257919986,1cyclictest17998-21snmpd20:56:183
257919986,1cyclictest17998-21snmpd19:11:543
257919980,4cyclictest0-21swapper/321:35:143
257839988,0cyclictest28-21ksoftirqd/219:15:012
257839988,0cyclictest28-21ksoftirqd/200:10:212
257839988,0cyclictest0-21swapper/222:45:392
257839986,1cyclictest61650irq/122-eno121:25:192
257839986,1cyclictest28-21ksoftirqd/220:40:002
257839986,1cyclictest28-21ksoftirqd/220:20:132
257839986,1cyclictest28-21ksoftirqd/220:05:012
257839986,1cyclictest28-21ksoftirqd/219:45:002
257839986,1cyclictest26993-21missed_timers19:10:162
257839986,1cyclictest17998-21snmpd22:30:212
257839984,3cyclictest693-21runrttasks22:56:092
257839981,7cyclictest61650irq/122-eno123:50:502
257839980,7cyclictest7946-21kworker/2:221:34:592
257839980,5cyclictest0-21swapper/223:15:102
257759981,1cyclictest0-21swapper/122:13:561
257759980,5cyclictest0-21swapper/121:04:331
257759980,4cyclictest0-21swapper/122:05:111
257669987,1cyclictest9-21ksoftirqd/023:10:140
257669987,1cyclictest9-21ksoftirqd/020:45:000
257669987,1cyclictest9-21ksoftirqd/020:10:000
257669987,1cyclictest12991-21ssh21:41:530
257669986,1cyclictest9-21ksoftirqd/022:40:000
257669986,1cyclictest9-21ksoftirqd/022:25:130
257669986,1cyclictest9-21ksoftirqd/022:10:120
257669986,1cyclictest9-21ksoftirqd/022:00:130
257669986,1cyclictest9-21ksoftirqd/019:35:010
257669986,1cyclictest9-21ksoftirqd/019:20:180
257669986,1cyclictest9-21ksoftirqd/019:10:110
257669986,1cyclictest1755-21ssh23:35:160
257669985,1cyclictest9-21ksoftirqd/019:55:000
257669985,1cyclictest240-21systemd-journal23:50:000
257669980,8cyclictest21470-21strings20:05:170
257669980,7cyclictest22337-21ssh00:01:490
257669980,6cyclictest19224-21diskmemload00:14:240
257669980,1cyclictest14294-21munin-run20:59:590
257919976,1cyclictest8342-21cat20:45:163
257919976,1cyclictest28761-21cat20:20:183
257919976,1cyclictest17998-21snmpd23:15:253
257919976,1cyclictest17998-21snmpd22:33:533
257919976,1cyclictest17998-21snmpd21:29:493
257919976,1cyclictest17998-21snmpd19:29:483
257919976,1cyclictest17998-21snmpd00:17:173
257919975,1cyclictest4135-21ssh22:13:323
257919975,1cyclictest17998-21snmpd22:55:093
257919975,1cyclictest17998-21snmpd22:41:213
257919975,1cyclictest17998-21snmpd22:28:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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