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2026-07-12 - 00:26
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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 Sat Jul 11, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
212992215175,26sleep30-21swapper/307:09:103
212992215175,26sleep30-21swapper/307:09:093
212722207157,24sleep00-21swapper/007:08:500
212722207157,24sleep00-21swapper/007:08:490
212692202161,27sleep20-21swapper/207:08:482
212692202161,27sleep20-21swapper/207:08:472
210742198161,24sleep10-21swapper/107:06:131
210742198161,24sleep10-21swapper/107:06:131
74432590,0sleep20-21swapper/210:26:402
2145499143,5cyclictest22645-21latency_hist10:05:010
2145899130,12cyclictest0-21swapper/109:00:181
67262120,0sleep20-21swapper/209:41:062
2145499123,4cyclictest18970-21latency_hist10:00:000
2147499119,1cyclictest35-21ksoftirqd/311:15:153
2145499108,1cyclictest9-21ksoftirqd/009:10:000
2145499101,6cyclictest30437-21apt-get08:35:110
214749997,1cyclictest35-21ksoftirqd/309:05:013
214749990,6cyclictest14292-21diskmemload12:13:063
214749990,5cyclictest0-21swapper/311:05:363
214669999,0cyclictest0-21swapper/212:39:052
214589990,9cyclictest0-21swapper/109:55:331
214549998,1cyclictest9-21ksoftirqd/009:45:000
214549990,4cyclictest30114-21latency_hist10:14:590
214749987,1cyclictest35-21ksoftirqd/312:34:593
214749986,1cyclictest28517-21cat11:40:173
214749982,4cyclictest29693-21rm09:30:143
214749982,2cyclictest0-21swapper/311:53:013
214749980,6cyclictest0-21swapper/310:56:103
214669987,1cyclictest0-21swapper/211:48:122
214669986,1cyclictest61650irq/122-eno112:00:162
214669986,1cyclictest61650irq/122-eno111:24:502
214669986,1cyclictest21450-21cyclictest10:48:102
214669984,3cyclictest7755-21sh11:11:002
214669980,3cyclictest8336-21apt-get09:45:142
214549987,1cyclictest9-21ksoftirqd/011:30:010
214549987,1cyclictest9-21ksoftirqd/010:25:000
214549987,1cyclictest9-21ksoftirqd/009:49:540
214549987,1cyclictest31713-21ssh11:00:160
214549987,1cyclictest20976-21ssh11:30:160
214549985,2cyclictest23970-21cron12:20:010
214549984,1cyclictest240-21systemd-journal08:00:000
214549983,1cyclictest2947-21/usr/sbin/munin12:35:140
214549982,5cyclictest0-21swapper/012:25:200
214549981,7cyclictest27746-1kworker/u9:009:35:150
214549981,6cyclictest15471-21ssh09:10:170
214549980,7cyclictest21006-21awk10:45:190
214549980,2cyclictest0-21swapper/010:37:530
214549980,1cyclictest8101-21ssh10:28:380
214549980,1cyclictest1966-21ssh12:33:320
214549980,1cyclictest19526-21mailstats09:15:200
28993270,0sleep30-21swapper/307:22:353
214749976,1cyclictest5170-21cat07:40:163
214749976,1cyclictest35-21ksoftirqd/308:29:593
214749975,1cyclictest35-21ksoftirqd/310:45:153
214749975,1cyclictest14430-21ssh09:52:253
214749974,1cyclictest35-21ksoftirqd/308:56:363
214749974,1cyclictest240-21systemd-journal11:13:383
214749972,5cyclictest23819-21munin-node11:57:233
214749971,2cyclictest0-21swapper/310:20:303
214749970,5cyclictest22402-21python08:15:203
214749970,5cyclictest21868-21kworker/u8:111:46:293
214749970,3cyclictest30437-21apt-get08:35:113
214749970,3cyclictest0-21swapper/310:34:043
214749970,2cyclictest0-21swapper/312:04:033
214669976,1cyclictest61650irq/122-eno112:30:062
214669976,1cyclictest61650irq/122-eno112:18:232
214669976,1cyclictest61650irq/122-eno112:07:092
214669976,1cyclictest61650irq/122-eno111:00:132
214669976,1cyclictest61650irq/122-eno110:30:152
214669976,1cyclictest61650irq/122-eno110:15:522
214669976,1cyclictest61650irq/122-eno110:11:292
214669976,1cyclictest61650irq/122-eno109:54:352
214669976,1cyclictest61650irq/122-eno109:25:202
214669976,1cyclictest61650irq/122-eno108:50:172
214669976,1cyclictest28-21ksoftirqd/210:00:012
214669976,0cyclictest61650irq/122-eno109:35:132
214669975,1cyclictest61650irq/122-eno109:20:222
214669974,1cyclictest0-21swapper/212:25:212
214669973,2cyclictest240-21systemd-journal08:10:002
214669972,3cyclictest14292-21diskmemload11:05:132
214669970,6cyclictest0-21swapper/209:17:032
214669970,4cyclictest2561-21aten_r1power_vo11:50:122
214669970,4cyclictest0-21swapper/210:20:042
214589971,3cyclictest0-21swapper/111:50:131
214589970,6cyclictest0-21swapper/108:59:551
214589970,6cyclictest0-21swapper/108:10:161
214589970,5cyclictest0-21swapper/112:15:111
214589970,4cyclictest0-21swapper/111:09:221
214549976,1cyclictest29478-1kworker/u9:011:43:500
214549976,1cyclictest2149-21telnet11:05:120
214549976,1cyclictest16964-21ssh12:10:080
214549976,1cyclictest14013-21ssh11:20:160
214549973,1cyclictest8997-21/usr/sbin/munin07:50:140
214549973,0cyclictest0-21swapper/008:40:110
214549971,6cyclictest28448-21ssh10:55:210
214549971,6cyclictest11225-21ssh12:00:230
214549970,6cyclictest25910-21kworker/0:208:20:140
214549970,6cyclictest24849-21grep10:05:210
214549970,6cyclictest22636-21fschecks_time09:20:140
214549970,6cyclictest21701-21fschecks_time08:15:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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