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2026-04-27 - 07:51
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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 27, 2026 00:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
309682206158,23sleep30-21swapper/319:09:173
289192206150,43sleep20-21swapper/219:05:092
289182201162,26sleep10-21swapper/119:05:081
308832197159,24sleep00-21swapper/019:08:090
61582160,0sleep20-21swapper/221:26:272
31099991312,1cyclictest0-21swapper/123:30:111
31099991312,1cyclictest0-21swapper/123:30:111
3109899123,4cyclictest1040-21cut19:14:590
3110099117,3cyclictest28-21ksoftirqd/221:15:542
31100991111,0cyclictest61650irq/122-eno122:28:312
3109899119,1cyclictest9-21ksoftirqd/020:15:000
3110999109,1cyclictest35-21ksoftirqd/321:10:013
3110999109,1cyclictest35-21ksoftirqd/320:34:593
3110999109,1cyclictest35-21ksoftirqd/319:54:593
3110999109,1cyclictest35-21ksoftirqd/319:25:003
3110099100,5cyclictest12754-21kworker/u8:023:55:572
3109999100,0cyclictest0-21swapper/123:15:121
311099998,1cyclictest35-21ksoftirqd/319:40:003
311099997,1cyclictest35-21ksoftirqd/300:00:003
311099991,6cyclictest24198-21diskmemload21:24:193
311099990,8cyclictest24198-21diskmemload00:05:113
311009996,1cyclictest28-21ksoftirqd/220:15:002
311009994,2cyclictest240-21systemd-journal19:50:002
310999990,1cyclictest0-21swapper/119:31:021
310989998,1cyclictest9-21ksoftirqd/023:00:000
310989998,1cyclictest9-21ksoftirqd/020:57:530
310989997,1cyclictest9-21ksoftirqd/023:05:000
310989991,7cyclictest17067-21/usr/sbin/munin23:50:190
311099987,1cyclictest35-21ksoftirqd/323:35:133
311099987,1cyclictest35-21ksoftirqd/323:05:003
311099987,1cyclictest35-21ksoftirqd/322:25:003
311099987,1cyclictest35-21ksoftirqd/321:39:593
311099987,1cyclictest35-21ksoftirqd/319:15:333
311099987,0cyclictest35-21ksoftirqd/322:15:003
311099986,1cyclictest35-21ksoftirqd/320:40:003
311099986,1cyclictest27558-21cat23:20:183
311099980,2cyclictest0-21swapper/323:10:123
311009988,0cyclictest28-21ksoftirqd/222:45:432
311009986,1cyclictest61650irq/122-eno123:40:322
311009986,1cyclictest61650irq/122-eno123:10:222
311009986,1cyclictest61650irq/122-eno123:05:002
311009986,1cyclictest61650irq/122-eno120:35:112
311009986,1cyclictest61650irq/122-eno119:35:132
311009984,1cyclictest7495-21apt-get22:55:112
311009983,2cyclictest240-21systemd-journal00:05:002
311009982,5cyclictest61650irq/122-eno122:52:572
311009981,5cyclictest30616-21apt-get22:00:122
310999980,5cyclictest0-21swapper/119:50:171
310989987,1cyclictest9-21ksoftirqd/020:30:130
310989987,0cyclictest0-21swapper/022:24:420
310989986,1cyclictest9-21ksoftirqd/019:49:590
310989986,1cyclictest22742-21cron21:50:000
310989983,2cyclictest240-21systemd-journal21:32:190
310989981,6cyclictest22568-21ssh23:55:210
310989980,7cyclictest30171-21ssh22:40:220
310989980,7cyclictest30171-21ssh22:40:220
310989980,4cyclictest18386-21perf00:35:000
310989980,4cyclictest15955-21perf19:45:000
310989980,4cyclictest0-21swapper/021:25:180
310989980,1cyclictest32008-21sh21:19:540
310989980,1cyclictest27398-21ssh00:03:070
26172280,0sleep20-21swapper/222:35:202
7163270,1sleep30-21swapper/321:28:583
31632270,0sleep20-21swapper/222:44:222
31632270,0sleep20-21swapper/222:44:212
311099977,0cyclictest35-21ksoftirqd/321:05:003
311099977,0cyclictest35-21ksoftirqd/319:55:133
311099976,1cyclictest35-21ksoftirqd/323:00:003
311099976,1cyclictest35-21ksoftirqd/322:40:143
311099976,1cyclictest35-21ksoftirqd/322:40:143
311099976,1cyclictest35-21ksoftirqd/321:00:013
311099976,1cyclictest35-21ksoftirqd/320:29:593
311099976,1cyclictest35-21ksoftirqd/319:50:013
311099976,1cyclictest35-21ksoftirqd/300:20:013
311099976,1cyclictest35-21ksoftirqd/300:20:013
311099975,1cyclictest35-21ksoftirqd/323:15:133
311099975,1cyclictest35-21ksoftirqd/321:55:133
311099975,1cyclictest17799-21ssh21:41:433
311099974,3cyclictest30095-21nscd21:49:063
311099974,1cyclictest240-21systemd-journal22:54:593
311099974,1cyclictest23046-21/usr/sbin/munin21:50:183
311099973,2cyclictest9348-21cstates19:30:133
311099972,4cyclictest32174-21apt-get22:45:123
311099972,3cyclictest24198-21diskmemload23:08:113
311099972,2cyclictest17522-21cstates22:25:143
311099971,3cyclictest24198-21diskmemload00:14:513
311099970,4cyclictest0-21swapper/321:30:133
311099970,2cyclictest6670-21apt-get19:25:123
311009977,0cyclictest0-21swapper/223:21:472
311009976,1cyclictest61650irq/122-eno123:50:012
311009976,1cyclictest61650irq/122-eno122:21:042
311009976,1cyclictest61650irq/122-eno121:54:562
311009976,1cyclictest61650irq/122-eno121:32:162
311009976,1cyclictest61650irq/122-eno120:05:112
311009976,1cyclictest61650irq/122-eno100:30:322
311009976,1cyclictest61650irq/122-eno100:10:032
311009976,0cyclictest61650irq/122-eno122:15:122
311009975,1cyclictest61650irq/122-eno123:15:142
311009975,1cyclictest61650irq/122-eno122:06:012
311009975,1cyclictest61650irq/122-eno121:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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