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2026-05-23 - 17:52
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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 Sat May 23, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
262592202144,46sleep30-21swapper/319:06:353
263332201144,44sleep00-21swapper/019:07:320
264332200161,26sleep10-21swapper/119:08:501
263992199158,27sleep20-21swapper/219:08:232
12692180,0sleep00-21swapper/021:27:090
93812160,0sleep30-21swapper/323:05:133
279722150,0sleep20-21swapper/221:20:142
26612991513,1cyclictest9-21ksoftirqd/000:20:010
136502150,0sleep00-21swapper/023:55:010
26637991210,1cyclictest35-21ksoftirqd/321:30:003
26629991211,1cyclictest28-21ksoftirqd/221:50:002
26612991210,1cyclictest9-21ksoftirqd/022:15:000
26612991210,1cyclictest9-21ksoftirqd/021:25:000
2661299119,1cyclictest9-21ksoftirqd/022:35:000
2661299119,1cyclictest9-21ksoftirqd/021:35:140
2661299119,1cyclictest9-21ksoftirqd/021:00:010
2661299113,4cyclictest17300-21sed00:00:000
26612991110,1cyclictest9-21ksoftirqd/000:40:000
2662999108,1cyclictest28-21ksoftirqd/219:15:012
2662999100,10cyclictest0-21swapper/223:01:442
2661299109,1cyclictest9-21ksoftirqd/023:35:000
2661299109,1cyclictest9-21ksoftirqd/021:45:000
2661299109,1cyclictest9-21ksoftirqd/021:35:000
2661299109,1cyclictest19252-21diskmemload21:11:170
2661299108,1cyclictest9-21ksoftirqd/023:00:000
2661299108,1cyclictest9-21ksoftirqd/020:25:000
266379997,1cyclictest35-21ksoftirqd/321:04:593
266379996,2cyclictest0-21swapper/323:00:043
266379993,1cyclictest26814-21apt-get19:10:113
266379990,4cyclictest4518-21apt-get19:30:113
266379990,4cyclictest0-21swapper/300:30:103
266299998,1cyclictest28-21ksoftirqd/221:20:012
266299995,4cyclictest1747-21ntpd23:20:292
266299991,7cyclictest7412-21taskset20:44:352
266129998,1cyclictest9-21ksoftirqd/000:30:010
266129997,1cyclictest9-21ksoftirqd/023:35:110
266129997,1cyclictest9-21ksoftirqd/022:50:000
266129997,1cyclictest9-21ksoftirqd/022:40:000
266129997,1cyclictest9-21ksoftirqd/022:10:000
266129997,1cyclictest9-21ksoftirqd/019:15:000
3105280,1sleep10-21swapper/100:23:261
266379984,2cyclictest240-21systemd-journal23:25:003
266379984,1cyclictest19252-21diskmemload22:42:483
266379982,2cyclictest30596-21cpuspeed_turbos22:50:123
266379981,7cyclictest2155-21taskset19:25:053
266379980,6cyclictest28862-21/usr/sbin/munin22:05:153
266379980,2cyclictest0-21swapper/323:50:113
266299986,1cyclictest61650irq/122-eno123:40:422
266299986,1cyclictest61650irq/122-eno123:35:122
266299986,1cyclictest61650irq/122-eno123:05:152
266299986,1cyclictest61650irq/122-eno122:55:332
266299986,1cyclictest61650irq/122-eno122:45:202
266299986,1cyclictest61650irq/122-eno122:20:162
266299986,1cyclictest61650irq/122-eno100:05:112
266299986,1cyclictest28-21ksoftirqd/223:55:002
266299984,4cyclictest693-21runrttasks21:12:232
266299980,3cyclictest0-21swapper/219:45:102
266129987,1cyclictest9-21ksoftirqd/023:30:000
266129986,2cyclictest213752sleep021:55:060
266129986,1cyclictest9-21ksoftirqd/021:55:000
266129986,1cyclictest9-21ksoftirqd/019:25:120
266129986,1cyclictest8432-21ssh23:04:030
266129986,1cyclictest3090-21ssh22:13:320
266129983,4cyclictest19252-21diskmemload22:20:590
266129981,1cyclictest16292-21ssh21:46:480
266129980,7cyclictest25402-21expr00:10:130
266129980,7cyclictest25402-21expr00:10:130
266129980,5cyclictest19252-21diskmemload23:05:300
266379975,1cyclictest31007-21ssh00:16:453
266379973,2cyclictest240-21systemd-journal20:10:003
266379972,4cyclictest19252-21diskmemload00:05:113
266379971,5cyclictest0-21swapper/320:55:103
266379971,3cyclictest19252-21diskmemload23:25:033
266379971,3cyclictest19252-21diskmemload21:56:313
266379970,4cyclictest0-21swapper/322:23:163
266379970,4cyclictest0-21swapper/321:38:063
266379970,3cyclictest0-21swapper/322:57:123
266299976,1cyclictest61650irq/122-eno123:10:442
266299976,1cyclictest61650irq/122-eno122:15:112
266299976,1cyclictest61650irq/122-eno121:36:492
266299976,1cyclictest61650irq/122-eno121:30:532
266299976,1cyclictest61650irq/122-eno120:05:122
266299976,1cyclictest61650irq/122-eno100:18:332
266299976,1cyclictest18717-21ntpq00:00:192
266299976,0cyclictest61650irq/122-eno100:35:102
266299975,1cyclictest61650irq/122-eno122:35:162
266299975,1cyclictest61650irq/122-eno100:00:002
266299975,1cyclictest28-21ksoftirqd/200:28:482
266299975,1cyclictest0-21swapper/220:15:142
266299974,2cyclictest9467-21nscd22:05:122
266299974,1cyclictest240-21systemd-journal22:14:352
266299973,1cyclictest294-21systemd-udevd23:17:082
266299973,1cyclictest294-21systemd-udevd23:17:082
266299973,1cyclictest240-21systemd-journal20:35:002
266299972,3cyclictest240-21systemd-journal00:35:002
266299970,2cyclictest24418-21runrttasks21:58:492
266299970,2cyclictest0-21swapper/223:30:142
266299970,1cyclictest13222-21ssh21:43:412
266229971,4cyclictest0-21swapper/122:05:201
266229970,6cyclictest0-21swapper/122:20:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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