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2026-06-22 - 04:14
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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 Jun 22, 2026 00:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237132209159,23sleep00-21swapper/019:08:410
236722208157,26sleep30-21swapper/319:08:123
236562201158,29sleep20-21swapper/219:07:592
236402199161,25sleep10-21swapper/119:07:461
142132590,0sleep20-21swapper/221:49:432
249082580,0sleep20-21swapper/221:20:142
103572570,0sleep10-21swapper/123:10:471
23895991311,1cyclictest9-21ksoftirqd/022:55:000
23895991311,1cyclictest9-21ksoftirqd/020:45:010
23895991311,1cyclictest9-21ksoftirqd/000:15:000
23900991211,1cyclictest28-21ksoftirqd/200:35:012
23895991210,1cyclictest9-21ksoftirqd/021:44:590
23895991210,1cyclictest9-21ksoftirqd/000:25:150
2390199114,0cyclictest16588-21diskmemload22:16:263
23900991110,1cyclictest28-21ksoftirqd/222:55:002
2389599113,4cyclictest18133-21perf20:04:590
23895991110,1cyclictest9-21ksoftirqd/022:20:010
23895991110,1cyclictest9-21ksoftirqd/021:15:160
2389599111,7cyclictest13390-21kworker/0:120:30:150
2390199109,1cyclictest35-21ksoftirqd/321:30:013
2390099109,1cyclictest28-21ksoftirqd/223:20:002
2390099109,1cyclictest28-21ksoftirqd/219:15:012
2390099107,2cyclictest28-21ksoftirqd/219:55:002
23900991010,0cyclictest28-21ksoftirqd/200:10:012
2390099100,7cyclictest11392-21apt-get22:30:122
2389599108,1cyclictest9-21ksoftirqd/022:05:140
2389599108,1cyclictest9-21ksoftirqd/021:35:220
2389599108,1cyclictest9-21ksoftirqd/000:35:000
153342100,1sleep30-21swapper/323:19:453
239019990,5cyclictest0-21swapper/321:40:013
239019990,3cyclictest14614-21/usr/sbin/munin21:50:223
239009998,1cyclictest28-21ksoftirqd/223:50:132
239009998,1cyclictest28-21ksoftirqd/222:10:002
239009998,1cyclictest28-21ksoftirqd/221:10:012
239009990,9cyclictest61650irq/122-eno123:47:152
238959998,1cyclictest9-21ksoftirqd/023:30:200
238959997,1cyclictest9-21ksoftirqd/020:49:590
238959997,1cyclictest9-21ksoftirqd/019:40:000
238959997,1cyclictest9-21ksoftirqd/000:15:120
238959992,6cyclictest1768-21sed23:45:010
1224290,0sleep10-21swapper/100:27:111
239019988,0cyclictest35-21ksoftirqd/322:05:163
239019986,1cyclictest11225-21cut21:45:123
239019984,3cyclictest0-21swapper/323:20:183
239009987,1cyclictest0-21swapper/221:57:352
239009986,1cyclictest61650irq/122-eno100:35:142
239009986,1cyclictest61650irq/122-eno100:23:382
239009985,2cyclictest61650irq/122-eno121:32:362
239009983,2cyclictest240-21systemd-journal00:17:182
239009982,3cyclictest16588-21diskmemload23:00:182
239009980,8cyclictest0-21swapper/222:25:462
239009980,5cyclictest10621-21if_err_eno120:55:152
238969981,4cyclictest0-21swapper/120:40:001
238959988,0cyclictest9-21ksoftirqd/022:30:200
238959988,0cyclictest9-21ksoftirqd/022:20:190
238959987,1cyclictest9-21ksoftirqd/021:20:010
238959987,1cyclictest9-21ksoftirqd/019:50:130
238959987,1cyclictest9-21ksoftirqd/000:40:010
238959986,1cyclictest9-21ksoftirqd/020:25:160
238959984,2cyclictest240-21systemd-journal19:49:590
238959982,6cyclictest8182-21perf23:10:000
238959982,4cyclictest29218-21apt-get22:10:110
238959981,4cyclictest0-21swapper/020:10:120
238959980,7cyclictest31561-21taskset21:29:320
238959980,4cyclictest0-21swapper/022:00:120
238959980,1cyclictest1177-21tr20:35:150
239019977,0cyclictest35-21ksoftirqd/320:50:173
239019976,1cyclictest35-21ksoftirqd/320:08:243
239019975,1cyclictest4820-21ssh00:31:593
239019975,1cyclictest18695-21ssh00:06:133
239019974,2cyclictest31913-21sh22:13:043
239019974,1cyclictest240-21systemd-journal22:50:013
239019973,2cyclictest548-21systemd-logind22:25:183
239019972,4cyclictest9816-21kworker/u8:021:13:273
239019972,4cyclictest1-21systemd22:59:073
239019972,2cyclictest0-21swapper/321:15:123
239019971,5cyclictest0-21swapper/322:50:083
239019970,6cyclictest16746-1kworker/u9:221:55:183
239019970,4cyclictest0-21swapper/320:40:113
239019970,3cyclictest0-21swapper/322:22:503
239009976,1cyclictest940-21cat20:35:142
239009976,1cyclictest61650irq/122-eno123:10:192
239009976,1cyclictest28-21ksoftirqd/222:21:022
239009976,1cyclictest28-21ksoftirqd/222:05:012
239009976,1cyclictest28-21ksoftirqd/219:25:012
239009975,1cyclictest61650irq/122-eno123:55:132
239009975,1cyclictest61650irq/122-eno122:35:152
239009975,1cyclictest61650irq/122-eno120:10:172
239009975,1cyclictest28-21ksoftirqd/219:45:112
239009975,1cyclictest28-21ksoftirqd/219:20:002
239009975,1cyclictest19111-21perf23:24:592
239009973,1cyclictest240-21systemd-journal22:45:462
239009971,4cyclictest16588-21diskmemload23:40:122
239009971,3cyclictest0-21swapper/200:00:112
239009970,1cyclictest0-21swapper/221:26:322
238969970,4cyclictest0-21swapper/121:51:571
238969970,4cyclictest0-21swapper/100:20:161
238969970,3cyclictest0-21swapper/123:15:121
238959976,1cyclictest9-21ksoftirqd/021:30:150
238959976,1cyclictest9-21ksoftirqd/000:20:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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