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2026-01-01 - 20:14
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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 Thu Jan 01, 2026 12:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1978623790,4sleep00-21swapper/007:05:220
204672213143,48sleep30-21swapper/307:09:083
204652200162,25sleep10-21swapper/107:09:061
202452200162,24sleep20-21swapper/207:06:132
20621991715,1cyclictest9-21ksoftirqd/009:15:000
97482130,0sleep10-21swapper/112:25:161
20642991311,1cyclictest35-21ksoftirqd/311:20:003
309142120,1sleep12062799cyclictest09:45:121
2062199121,5cyclictest28677-21perf10:50:000
2064299118,1cyclictest35-21ksoftirqd/309:00:003
20642991110,1cyclictest35-21ksoftirqd/308:25:003
2063499119,1cyclictest28-21ksoftirqd/212:34:592
2063499119,1cyclictest28-21ksoftirqd/207:40:012
2062199119,1cyclictest9-21ksoftirqd/012:30:000
2064299109,1cyclictest35-21ksoftirqd/310:10:003
2064299109,1cyclictest35-21ksoftirqd/308:15:013
2064299108,1cyclictest35-21ksoftirqd/310:15:003
20634991010,0cyclictest0-21swapper/211:15:512
2062199107,1cyclictest9-21ksoftirqd/008:44:560
206429997,1cyclictest24515-21latency_hist11:50:003
206429990,2cyclictest0-21swapper/309:15:103
206349997,1cyclictest28371-21idleruntime-cro07:25:002
206349997,1cyclictest28-21ksoftirqd/210:40:002
206349997,1cyclictest28-21ksoftirqd/210:10:002
206349990,7cyclictest3551-21chrt12:10:582
206429987,1cyclictest35-21ksoftirqd/307:40:013
206429986,1cyclictest707-21snmpd11:20:463
206429986,1cyclictest707-21snmpd10:39:093
206429986,1cyclictest707-21snmpd10:29:273
206429986,1cyclictest707-21snmpd09:57:263
206429986,1cyclictest707-21snmpd09:27:433
206429986,1cyclictest707-21snmpd09:20:353
206429986,1cyclictest707-21snmpd09:20:343
206429986,1cyclictest707-21snmpd09:01:033
206429986,1cyclictest707-21snmpd08:02:503
206429986,1cyclictest27395-21cat10:45:173
206429985,1cyclictest35-21ksoftirqd/308:35:013
206429980,5cyclictest25690-21apt-get09:35:113
206429980,3cyclictest0-21swapper/311:25:123
206349988,0cyclictest0-21swapper/208:00:172
206349987,1cyclictest707-21snmpd07:27:192
206349987,1cyclictest707-21snmpd07:27:192
206349986,1cyclictest707-21snmpd09:08:182
206349986,1cyclictest28-21ksoftirqd/210:50:002
206349982,1cyclictest0-21swapper/209:40:112
206219986,1cyclictest707-21snmpd11:47:320
206219986,1cyclictest707-21snmpd08:36:420
206219986,1cyclictest707-21snmpd08:21:590
206219985,2cyclictest12669-21sendmail-msp08:00:000
206219985,1cyclictest240-21systemd-journal10:55:000
206219983,1cyclictest0-21swapper/010:05:110
206219980,7cyclictest0-21swapper/011:30:110
206219980,7cyclictest0-21swapper/010:55:110
206219980,6cyclictest0-21swapper/008:05:010
206219980,4cyclictest23153-21cat09:30:000
23955270,1sleep20-21swapper/210:40:132
206429976,1cyclictest7378-21cat12:20:163
206429975,1cyclictest707-21snmpd12:18:393
206429975,1cyclictest707-21snmpd12:18:393
206429975,1cyclictest707-21snmpd12:05:363
206429975,1cyclictest707-21snmpd12:00:573
206429975,1cyclictest707-21snmpd11:00:313
206429975,1cyclictest707-21snmpd10:17:083
206429975,1cyclictest707-21snmpd09:06:513
206429975,1cyclictest707-21snmpd07:54:443
206429975,1cyclictest707-21snmpd07:13:153
206429975,1cyclictest35-21ksoftirqd/310:25:003
206429975,1cyclictest35-21ksoftirqd/308:20:003
206429975,1cyclictest28116-21cat08:30:173
206429971,4cyclictest707-21snmpd11:51:113
206429970,4cyclictest240-21systemd-journal08:45:003
206349976,1cyclictest61650irq/122-eno111:50:152
206349976,1cyclictest61650irq/122-eno108:05:112
206349976,1cyclictest28-21ksoftirqd/207:50:002
206349975,1cyclictest707-21snmpd07:32:042
206349975,1cyclictest61650irq/122-eno107:55:132
206349975,1cyclictest28-21ksoftirqd/211:50:002
206349975,1cyclictest2478-21perf09:55:002
206349975,1cyclictest20150-21apt-get08:15:112
206349974,2cyclictest24641-21cron08:25:002
206349973,2cyclictest240-21systemd-journal07:14:552
206349970,6cyclictest2698-21apt-get09:55:122
206349970,6cyclictest0-21swapper/208:41:212
206349970,0cyclictest0-21swapper/211:25:512
206279971,6cyclictest0-21swapper/110:58:371
206279970,5cyclictest0-21swapper/111:20:181
206279970,1cyclictest0-21swapper/109:51:351
206219976,1cyclictest9-21ksoftirqd/011:07:430
206219976,1cyclictest707-21snmpd12:33:270
206219976,1cyclictest26580-21cat09:35:160
206219975,1cyclictest9-21ksoftirqd/010:00:140
206219975,1cyclictest20548-21diskstats11:40:150
206219974,1cyclictest240-21systemd-journal12:40:000
206219973,1cyclictest32764-21/usr/sbin/munin09:50:210
206219972,3cyclictest0-21swapper/011:50:210
206219971,6cyclictest0-21swapper/007:10:510
206219971,5cyclictest9775-21/usr/sbin/munin10:10:160
206219970,6cyclictest7223-21awk07:45:190
206219970,6cyclictest4583-21expr12:15:140
206219970,6cyclictest4583-21expr12:15:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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