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2026-06-20 - 03:28
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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 50 highest latencies:
System rack1slot1.osadl.org (updated Sat Jun 20, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288632233159,26sleep30-21swapper/319:05:593
289942208175,21sleep00-21swapper/019:07:410
290262201163,24sleep20-21swapper/219:08:072
289952199158,27sleep10-21swapper/119:07:421
236462590,0sleep00-21swapper/022:38:110
32112180,0sleep30-21swapper/322:55:003
86032140,0sleep00-21swapper/020:40:120
29268991414,0cyclictest0-21swapper/322:51:283
147442130,0sleep00-21swapper/023:10:110
29268991211,1cyclictest35-21ksoftirqd/322:30:013
2925299120,6cyclictest0-21swapper/123:31:471
2925099119,1cyclictest9-21ksoftirqd/000:15:000
2926199108,1cyclictest28-21ksoftirqd/223:28:302
29261991010,0cyclictest0-21swapper/222:57:412
2925299100,5cyclictest0-21swapper/122:10:111
2925299100,5cyclictest0-21swapper/122:10:111
2925099109,1cyclictest9-21ksoftirqd/022:55:000
2925099102,4cyclictest4315-21perf00:25:000
2925099100,5cyclictest5587-21grep22:15:000
2925099100,5cyclictest5587-21grep22:15:000
2925099100,4cyclictest0-21swapper/019:10:100
292689998,1cyclictest35-21ksoftirqd/321:15:003
292689990,7cyclictest22307-21diskmemload22:21:043
292619997,1cyclictest16714-21cron22:34:552
292619993,4cyclictest0-21swapper/221:35:182
292619990,8cyclictest0-21swapper/219:45:152
292619990,6cyclictest0-21swapper/222:00:112
292619990,1cyclictest0-21swapper/220:25:112
292509992,6cyclictest30593-21chrt22:47:040
292509991,5cyclictest0-21swapper/020:15:150
292509990,6cyclictest0-21swapper/022:42:440
292509990,4cyclictest20003-21latency_hist21:05:000
292689988,0cyclictest35-21ksoftirqd/322:30:113
292689987,1cyclictest1029-21snmpd22:04:283
292689986,1cyclictest1029-21snmpd20:23:173
292689986,1cyclictest1029-21snmpd19:28:183
292689981,4cyclictest22307-21diskmemload23:31:313
292619986,1cyclictest61650irq/122-eno123:40:002
292619986,1cyclictest61650irq/122-eno123:30:112
292619985,1cyclictest240-21systemd-journal19:20:002
292619981,6cyclictest1029-21snmpd21:33:362
292509986,1cyclictest31117-21ssh21:20:160
292509986,1cyclictest13127-21grep19:40:180
292509986,1cyclictest1029-21snmpd23:47:130
292509986,1cyclictest1029-21snmpd22:59:450
292509986,1cyclictest1029-21snmpd19:59:310
292509986,1cyclictest1029-21snmpd19:28:000
292509986,1cyclictest1029-21snmpd19:17:060
292509984,2cyclictest548-21systemd-logind00:25:190
292509983,1cyclictest0-21swapper/020:50:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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