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2025-12-21 - 09:46
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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 Sun Dec 21, 2025 00:45:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28532210176,22sleep30-21swapper/319:08:273
25112199159,26sleep20-21swapper/219:05:252
28242198161,24sleep10-21swapper/119:08:051
26422197159,24sleep00-21swapper/019:05:430
181512150,0sleep10-21swapper/120:45:201
3069991313,0cyclictest0-21swapper/021:50:150
3069991311,1cyclictest9-21ksoftirqd/021:40:000
3098991211,1cyclictest35-21ksoftirqd/300:25:003
3086991211,1cyclictest28-21ksoftirqd/221:50:002
3086991211,1cyclictest28-21ksoftirqd/219:45:002
3086991210,1cyclictest30250-21pmu-power00:35:172
306999123,4cyclictest28113-21latency_hist21:10:010
246592120,0sleep00-21swapper/022:10:140
308699119,1cyclictest28-21ksoftirqd/222:50:222
308699119,1cyclictest28-21ksoftirqd/219:25:002
308699114,5cyclictest28-21ksoftirqd/219:30:172
306999110,5cyclictest18119-21perf19:40:000
309899105,2cyclictest240-21systemd-journal23:09:593
309899100,7cyclictest0-21swapper/322:35:133
308699108,1cyclictest28-21ksoftirqd/221:20:002
30989999,0cyclictest0-21swapper/319:10:453
30989997,1cyclictest35-21ksoftirqd/320:37:173
30989997,1cyclictest35-21ksoftirqd/300:20:003
30989991,4cyclictest26989-21apt-get22:15:123
30989990,6cyclictest1644-21apt-get22:30:123
30869998,1cyclictest28-21ksoftirqd/222:15:152
30869998,1cyclictest28-21ksoftirqd/220:10:172
30869998,1cyclictest28-21ksoftirqd/220:00:142
30869997,1cyclictest28-21ksoftirqd/221:00:012
30869997,1cyclictest28-21ksoftirqd/220:25:252
30799990,9cyclictest0-21swapper/100:04:141
30699994,4cyclictest0-21swapper/023:05:160
30699993,6cyclictest13203-21sed19:30:000
30989986,1cyclictest707-21snmpd22:04:573
30989986,1cyclictest707-21snmpd21:26:533
30989986,1cyclictest707-21snmpd20:41:013
30989986,1cyclictest35-21ksoftirqd/323:25:003
30989986,1cyclictest35-21ksoftirqd/300:30:003
30989986,1cyclictest1747-21ntpd21:10:593
30989986,1cyclictest1747-21ntpd00:05:593
30869988,0cyclictest4621-21sensors21:25:222
30869987,1cyclictest28-21ksoftirqd/222:35:142
30869987,1cyclictest28-21ksoftirqd/221:40:002
30869987,1cyclictest28-21ksoftirqd/221:00:162
30869987,0cyclictest28-21ksoftirqd/223:20:202
30869986,1cyclictest707-21snmpd21:50:122
30869986,1cyclictest61650irq/122-eno119:55:182
30869986,1cyclictest28-21ksoftirqd/223:50:002
30869986,1cyclictest28-21ksoftirqd/222:45:002
30869986,1cyclictest28-21ksoftirqd/222:05:182
30869985,1cyclictest28-21ksoftirqd/219:55:002
30869982,5cyclictest13851-21apt-get22:55:132
30869981,6cyclictest0-21swapper/200:15:012
30869981,2cyclictest0-21swapper/219:15:132
30869980,3cyclictest0-21swapper/200:20:142
30869980,2cyclictest0-21swapper/221:40:122
30799980,8cyclictest0-21swapper/119:57:541
30699986,1cyclictest9-21ksoftirqd/022:30:000
30699986,1cyclictest707-21snmpd23:13:050
30699986,1cyclictest707-21snmpd22:22:410
30699986,1cyclictest707-21snmpd21:30:410
30699986,1cyclictest707-21snmpd21:27:110
30699986,1cyclictest707-21snmpd19:58:060
30699986,1cyclictest707-21snmpd19:53:270
30699983,1cyclictest9478-21/usr/sbin/munin20:30:190
30699981,6cyclictest20495-21date19:45:000
30699981,6cyclictest0-21swapper/000:31:470
30699981,1cyclictest0-21swapper/021:22:080
30699980,4cyclictest0-21swapper/019:15:010
30989976,1cyclictest31270-21ntpq20:05:193
30989975,1cyclictest9571-21cat19:20:163
30989975,1cyclictest707-21snmpd23:32:453
30989975,1cyclictest707-21snmpd23:27:303
30989975,1cyclictest707-21snmpd23:01:263
30989975,1cyclictest707-21snmpd21:42:403
30989975,1cyclictest707-21snmpd20:23:063
30989975,1cyclictest707-21snmpd20:11:313
30989975,1cyclictest707-21snmpd19:36:503
30989975,1cyclictest30252-21cat22:20:153
30989974,2cyclictest707-21snmpd00:01:193
30989972,4cyclictest9467-21nscd22:40:143
30869977,0cyclictest28-21ksoftirqd/200:25:232
30869977,0cyclictest18758-21sensors21:55:192
30869976,1cyclictest61650irq/122-eno123:35:162
30869976,1cyclictest61650irq/122-eno122:25:122
30869976,1cyclictest28-21ksoftirqd/223:25:002
30869976,1cyclictest28-21ksoftirqd/223:05:152
30869976,1cyclictest28-21ksoftirqd/223:00:172
30869976,1cyclictest28-21ksoftirqd/221:20:172
30869976,1cyclictest28-21ksoftirqd/220:15:152
30869976,1cyclictest28-21ksoftirqd/220:05:152
30869976,1cyclictest28-21ksoftirqd/219:25:172
30869976,1cyclictest28-21ksoftirqd/219:15:012
30869976,1cyclictest18542-21kworker/2:220:22:222
30869975,1cyclictest61650irq/122-eno121:35:002
30869975,1cyclictest14225-21kworker/2:123:30:122
30869975,1cyclictest14225-21kworker/2:122:30:122
30869975,1cyclictest14225-21kworker/2:122:10:142
30869974,1cyclictest13068-21fschecks_count00:00:162
30869972,4cyclictest27819-21ntp_states00:30:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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