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2026-08-13 - 11:36
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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 Thu Aug 13, 2026 00:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15392229158,57sleep30-21swapper/319:09:163
13172202162,26sleep20-21swapper/219:06:232
13932199161,25sleep10-21swapper/119:07:211
14122198161,24sleep00-21swapper/019:07:370
1678991311,1cyclictest9-21ksoftirqd/023:45:000
170399120,2cyclictest0-21swapper/323:55:113
167899125,6cyclictest9-21ksoftirqd/022:10:120
1678991211,1cyclictest9-21ksoftirqd/023:30:010
1678991210,1cyclictest9-21ksoftirqd/023:00:000
1678991210,1cyclictest9-21ksoftirqd/022:05:000
1678991210,1cyclictest9-21ksoftirqd/000:15:010
169699114,7cyclictest61650irq/122-eno122:09:572
1696991110,1cyclictest28-21ksoftirqd/221:56:202
167899119,2cyclictest9-21ksoftirqd/023:10:130
1678991111,0cyclictest0-21swapper/021:43:580
1678991110,1cyclictest9-21ksoftirqd/020:59:590
170399108,1cyclictest35-21ksoftirqd/319:20:003
169699109,1cyclictest28-21ksoftirqd/221:32:162
167899109,1cyclictest9-21ksoftirqd/021:39:590
167899109,1cyclictest9-21ksoftirqd/020:40:000
167899109,0cyclictest9-21ksoftirqd/023:05:000
167899108,1cyclictest9-21ksoftirqd/019:19:590
167899101,4cyclictest11842-21sed19:30:000
16969999,0cyclictest0-21swapper/222:40:422
16969999,0cyclictest0-21swapper/221:35:122
16969997,1cyclictest11843-21/usr/sbin/munin22:20:162
16969996,2cyclictest6574-21perf23:45:002
16969996,1cyclictest0-21swapper/222:15:112
16969990,6cyclictest4048-21munin-node22:10:182
16859998,1cyclictest21-21ksoftirqd/121:36:011
16859990,2cyclictest0-21swapper/123:55:121
16789999,0cyclictest9-21ksoftirqd/022:40:010
16789999,0cyclictest9-21ksoftirqd/021:25:000
16789998,1cyclictest9-21ksoftirqd/023:10:000
16789998,1cyclictest9-21ksoftirqd/022:20:130
16789998,1cyclictest9-21ksoftirqd/022:10:010
16789998,1cyclictest9-21ksoftirqd/000:05:000
16789998,0cyclictest9-21ksoftirqd/021:30:010
16789997,1cyclictest9-21ksoftirqd/022:30:130
16789997,1cyclictest9-21ksoftirqd/021:20:010
16789996,2cyclictest26555-21diskmemload23:55:130
16789991,4cyclictest26596-21cat21:10:000
16789990,5cyclictest0-21swapper/019:45:130
17039986,1cyclictest11301-21snmpd21:37:383
17039981,4cyclictest0-21swapper/322:10:113
17039980,5cyclictest4587-21ssh23:40:173
17039980,5cyclictest0-21swapper/321:50:003
16969987,1cyclictest26555-21diskmemload21:50:122
16969986,1cyclictest61650irq/122-eno123:30:122
16969986,1cyclictest61650irq/122-eno122:50:172
16969986,1cyclictest61650irq/122-eno122:00:172
16969986,1cyclictest28-21ksoftirqd/223:27:362
16969986,1cyclictest11301-21snmpd23:35:092
16969986,1cyclictest11301-21snmpd00:26:322
16969986,1cyclictest11301-21snmpd00:00:162
16969984,2cyclictest548-21systemd-logind22:35:182
16969984,2cyclictest240-21systemd-journal00:20:002
16859980,1cyclictest0-21swapper/122:25:111
16789988,0cyclictest9-21ksoftirqd/000:05:200
16789987,1cyclictest9-21ksoftirqd/023:30:130
16789987,1cyclictest9-21ksoftirqd/022:40:130
16789987,1cyclictest9-21ksoftirqd/021:50:150
16789987,1cyclictest9-21ksoftirqd/020:15:000
16789987,1cyclictest26555-21diskmemload22:25:110
16789986,1cyclictest9-21ksoftirqd/020:45:140
16789986,1cyclictest9-21ksoftirqd/020:25:010
16789981,5cyclictest26555-21diskmemload21:57:430
16789981,5cyclictest11301-21snmpd23:15:560
17039977,0cyclictest35-21ksoftirqd/321:50:183
17039977,0cyclictest35-21ksoftirqd/321:35:013
17039976,1cyclictest35-21ksoftirqd/321:00:003
17039976,1cyclictest11301-21snmpd21:28:093
17039976,1cyclictest11301-21snmpd00:37:353
17039976,1cyclictest11301-21snmpd00:17:443
17039976,1cyclictest11301-21snmpd00:11:373
17039975,1cyclictest11301-21snmpd19:38:503
17039974,1cyclictest548-21systemd-logind21:17:083
17039971,3cyclictest7926-21apt-get20:30:153
17039970,5cyclictest7666-21unixbench-2d00:30:223
17039970,5cyclictest11301-21snmpd22:24:493
17039970,4cyclictest0-21swapper/323:18:373
17039970,4cyclictest0-21swapper/322:45:113
17039970,1cyclictest0-21swapper/321:05:103
16969976,1cyclictest61650irq/122-eno123:51:022
16969976,1cyclictest61650irq/122-eno122:30:192
16969976,1cyclictest61650irq/122-eno100:39:412
16969976,1cyclictest28-21ksoftirqd/220:43:452
16969976,1cyclictest11301-21snmpd21:46:282
16969976,0cyclictest61650irq/122-eno123:06:312
16969975,1cyclictest61650irq/122-eno119:40:012
16969975,1cyclictest61650irq/122-eno119:10:142
16969975,1cyclictest61650irq/122-eno100:30:152
16969975,1cyclictest2879-21ntpq21:20:172
16969975,1cyclictest17111-21cron20:50:002
16969975,1cyclictest11301-21snmpd22:55:522
16969972,3cyclictest15929-21kworker/u8:200:13:102
16969972,1cyclictest29660-21/usr/sbin/munin20:05:152
16969971,6cyclictest0-21swapper/219:19:032
16969971,6cyclictest0-21swapper/200:23:502
16969970,4cyclictest26555-21diskmemload23:10:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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