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2026-04-27 - 21:17
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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 12:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
116812234158,59sleep20-21swapper/207:06:092
116332212160,25sleep30-21swapper/307:05:343
119052210160,24sleep00-21swapper/007:09:050
118492198161,24sleep10-21swapper/107:08:211
241702560,0sleep024132-21perf11:00:000
267522190,0sleep00-21swapper/010:20:120
12067991413,1cyclictest28-21ksoftirqd/209:36:442
12067991311,1cyclictest28-21ksoftirqd/212:25:002
12067991311,1cyclictest28-21ksoftirqd/211:10:002
12067991310,1cyclictest28-21ksoftirqd/209:55:002
1206799130,12cyclictest0-21swapper/209:10:202
1207599120,9cyclictest240-21systemd-journal10:03:073
12067991211,1cyclictest28-21ksoftirqd/211:48:492
12067991210,1cyclictest24097-21sh11:00:012
1206799119,1cyclictest28-21ksoftirqd/209:30:192
1206799119,1cyclictest28-21ksoftirqd/209:05:002
1206799119,1cyclictest28-21ksoftirqd/207:35:002
12067991111,0cyclictest28-21ksoftirqd/212:27:192
12067991110,1cyclictest28-21ksoftirqd/211:37:592
1205099113,4cyclictest4907-21diskmemload09:15:000
1205099113,4cyclictest4852-21cat12:00:000
290482100,0sleep20-21swapper/210:22:062
1206799109,1cyclictest28-21ksoftirqd/212:35:112
1206799109,1cyclictest28-21ksoftirqd/211:25:192
1206799109,1cyclictest28-21ksoftirqd/211:15:122
1206799109,1cyclictest28-21ksoftirqd/210:15:132
1206799109,1cyclictest28-21ksoftirqd/209:45:122
1206799109,1cyclictest28-21ksoftirqd/208:05:012
1206799109,1cyclictest28-21ksoftirqd/207:50:162
1206799108,1cyclictest28-21ksoftirqd/212:30:122
1206799108,1cyclictest28-21ksoftirqd/212:00:002
1206799108,1cyclictest28-21ksoftirqd/210:10:122
1206799108,1cyclictest28-21ksoftirqd/209:55:182
1206799108,1cyclictest28-21ksoftirqd/207:50:002
1206799107,3cyclictest28-21ksoftirqd/211:10:182
115602100,0sleep30-21swapper/310:41:383
120759997,1cyclictest15897-21turbostat08:25:003
120759995,3cyclictest570-21nscd10:11:113
120759992,5cyclictest23213-21apt-get08:40:133
120759990,5cyclictest8632-21kworker/u8:210:20:373
120679999,0cyclictest28-21ksoftirqd/212:00:212
120679998,1cyclictest28-21ksoftirqd/212:15:112
120679998,1cyclictest28-21ksoftirqd/212:10:112
120679998,1cyclictest28-21ksoftirqd/210:40:182
120679998,1cyclictest28-21ksoftirqd/209:20:012
120679998,1cyclictest28-21ksoftirqd/207:35:182
120679997,1cyclictest28-21ksoftirqd/211:30:152
120679997,1cyclictest28-21ksoftirqd/210:45:192
120679997,1cyclictest28-21ksoftirqd/207:24:592
120509999,0cyclictest4907-21diskmemload12:07:070
120509990,1cyclictest240-21systemd-journal11:47:100
120509990,1cyclictest240-21systemd-journal09:19:360
120759987,1cyclictest35-21ksoftirqd/310:10:003
120759986,1cyclictest35-21ksoftirqd/309:20:003
120759985,2cyclictest31826-21apt-get07:50:113
120679988,0cyclictest28-21ksoftirqd/211:20:162
120679988,0cyclictest28-21ksoftirqd/210:00:172
120679987,1cyclictest28-21ksoftirqd/211:50:112
120679987,1cyclictest28-21ksoftirqd/210:40:002
120679987,1cyclictest28-21ksoftirqd/209:25:132
120679987,1cyclictest28-21ksoftirqd/208:40:222
120679987,1cyclictest28-21ksoftirqd/207:55:132
120679986,1cyclictest7766-21kworker/2:208:45:122
120679986,1cyclictest28-21ksoftirqd/212:05:132
120679981,6cyclictest16934-21unixbench-2d10:05:222
120509987,1cyclictest14954-21ssh10:45:330
120509986,1cyclictest9-21ksoftirqd/007:50:000
120509984,1cyclictest240-21systemd-journal09:40:000
120509980,7cyclictest561-21nscd10:05:130
120509980,1cyclictest6781-21ssh11:19:590
120509980,1cyclictest1569-21ssh11:11:000
120759976,1cyclictest35-21ksoftirqd/312:10:003
120759976,1cyclictest35-21ksoftirqd/309:55:003
120759976,1cyclictest23730-21cat10:15:153
120759975,1cyclictest35-21ksoftirqd/310:25:153
120759975,1cyclictest2224-21cat11:55:153
120759975,1cyclictest14584-21ssh12:10:473
120759974,1cyclictest35-21ksoftirqd/308:30:353
120759974,0cyclictest4907-21diskmemload12:20:503
120759972,3cyclictest0-21swapper/310:55:053
120759971,4cyclictest4907-21diskmemload11:04:403
120759971,3cyclictest1747-21ntpd08:25:193
120679977,0cyclictest0-21swapper/211:40:142
120679976,1cyclictest7766-21kworker/2:210:25:182
120679976,1cyclictest61650irq/122-eno110:55:282
120679976,1cyclictest61650irq/122-eno110:50:272
120679976,1cyclictest61650irq/122-eno109:40:112
120679976,1cyclictest28-21ksoftirqd/210:30:412
120679976,1cyclictest28-21ksoftirqd/209:20:062
120679976,1cyclictest28-21ksoftirqd/208:55:192
120679976,1cyclictest28-21ksoftirqd/208:53:412
120679976,1cyclictest28-21ksoftirqd/208:30:002
120679976,1cyclictest28-21ksoftirqd/207:45:002
120589970,6cyclictest0-21swapper/107:30:091
120509976,1cyclictest18574-21cat07:20:150
120509976,1cyclictest14817-1kworker/u9:009:28:300
120509975,1cyclictest9-21ksoftirqd/009:05:000
120509975,1cyclictest27954-21/usr/sbin/munin12:30:150
120509974,2cyclictest1753-21munin-node07:55:120
120509973,2cyclictest548-21systemd-logind07:15:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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