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2026-07-24 - 21:39
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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 Fri Jul 24, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
300912209176,21sleep30-21swapper/307:05:383
302732207149,44sleep00-21swapper/007:08:010
303112206154,41sleep10-21swapper/107:08:301
301682201161,26sleep20-21swapper/207:06:382
174782580,0sleep10-21swapper/111:15:321
30534991716,1cyclictest28-21ksoftirqd/211:46:412
63492140,0sleep20-21swapper/209:30:122
30534991311,1cyclictest0-21swapper/211:50:122
30523991313,0cyclictest0-21swapper/008:45:110
30534991211,1cyclictest6993-21ssh12:33:472
3052399122,5cyclictest411-21munin-node07:15:010
3053499119,1cyclictest28-21ksoftirqd/207:45:002
3053499119,1cyclictest28-21ksoftirqd/207:20:002
3053499109,1cyclictest0-21swapper/211:15:272
3053499108,1cyclictest28-21ksoftirqd/212:05:152
3052499100,2cyclictest0-21swapper/108:15:121
149502100,0sleep20-21swapper/210:26:442
305349997,1cyclictest28-21ksoftirqd/207:47:272
305349991,7cyclictest411-21munin-node12:00:572
305239990,8cyclictest0-21swapper/011:43:090
305409987,1cyclictest35-21ksoftirqd/309:20:003
305409986,1cyclictest35-21ksoftirqd/308:14:183
305409986,1cyclictest27318-21cat11:30:153
305409985,1cyclictest35-21ksoftirqd/308:59:593
305349987,1cyclictest28-21ksoftirqd/212:25:002
305349987,1cyclictest28-21ksoftirqd/211:35:132
305349987,1cyclictest0-21swapper/207:11:272
305349986,1cyclictest61650irq/122-eno109:50:012
305349986,1cyclictest61650irq/122-eno109:00:152
305349986,1cyclictest28-21ksoftirqd/208:45:002
305349986,1cyclictest11301-21snmpd12:26:562
305349986,1cyclictest11301-21snmpd11:12:112
305349986,1cyclictest11301-21snmpd11:09:502
305349983,2cyclictest240-21systemd-journal09:18:072
305349980,7cyclictest411-21munin-node07:57:562
305349980,5cyclictest32237-21apt-get08:20:112
305239986,1cyclictest9-21ksoftirqd/008:55:000
305239986,1cyclictest11301-21snmpd12:10:560
305239982,5cyclictest23092-21perf10:40:000
305239981,6cyclictest6459-1kworker/u9:011:47:310
305239981,6cyclictest26710-21ssh09:14:150
305239981,6cyclictest12550-21ssh11:10:130
305239981,4cyclictest571-21nscd09:20:340
305239980,7cyclictest28289-21ssh12:17:480
305239980,7cyclictest18263-21ssh11:18:040
305239980,7cyclictest0-21swapper/011:35:170
305239980,3cyclictest0-21swapper/012:08:280
305239980,1cyclictest26378-21ssh11:30:050
305239980,1cyclictest12034-21ssh09:36:350
305239980,1cyclictest12034-21ssh09:36:350
305239980,1cyclictest0-21swapper/008:25:130
305409976,1cyclictest30839-21cat11:35:153
305409976,1cyclictest14640-21ntpq09:40:183
305409976,1cyclictest11301-21snmpd11:52:403
305409975,1cyclictest7645-21ssh11:03:083
305409975,1cyclictest35-21ksoftirqd/308:35:013
305409975,1cyclictest25378-21ssh11:27:363
305409975,1cyclictest1584-21ntp_states12:25:193
305409975,1cyclictest11836-21ssh10:23:023
305409975,1cyclictest11301-21snmpd12:05:193
305409974,2cyclictest561-21nscd11:45:163
305409974,1cyclictest240-21systemd-journal11:45:003
305409973,2cyclictest240-21systemd-journal10:44:093
305409973,2cyclictest240-21systemd-journal10:05:233
305409973,2cyclictest240-21systemd-journal08:07:053
305409972,3cyclictest9428-21cut07:30:173
305409972,2cyclictest13155-21apt-get07:40:123
305409970,6cyclictest23376-21diskmemload11:05:413
305409970,4cyclictest693-21runrttasks08:52:083
305409970,4cyclictest0-21swapper/309:11:553
305409970,2cyclictest0-21swapper/308:35:113
305349977,0cyclictest0-21swapper/207:50:122
305349976,1cyclictest61650irq/122-eno111:30:042
305349976,1cyclictest61650irq/122-eno110:57:302
305349976,1cyclictest61650irq/122-eno110:10:152
305349976,1cyclictest61650irq/122-eno109:43:552
305349976,1cyclictest61650irq/122-eno109:21:512
305349976,1cyclictest61650irq/122-eno109:13:532
305349976,0cyclictest61650irq/122-eno110:00:082
305349976,0cyclictest61650irq/122-eno109:50:152
305349975,1cyclictest61650irq/122-eno111:55:172
305349975,1cyclictest61650irq/122-eno111:41:102
305349975,1cyclictest61650irq/122-eno111:25:182
305349975,1cyclictest61650irq/122-eno110:35:062
305349975,1cyclictest3446-21ssh09:25:162
305349975,1cyclictest29417-21ssh10:47:532
305349975,1cyclictest28-21ksoftirqd/212:20:002
305349974,2cyclictest28-21ksoftirqd/209:56:112
305349974,2cyclictest0-21swapper/210:05:112
305349973,3cyclictest5825-21cron07:25:002
305349972,3cyclictest16273-21apt-get10:30:122
305349971,5cyclictest693-21runrttasks10:15:042
305249974,0cyclictest0-21swapper/109:23:381
305249970,4cyclictest0-21swapper/111:25:091
305249970,4cyclictest0-21swapper/110:50:171
305249970,4cyclictest0-21swapper/109:55:211
305249970,1cyclictest0-21swapper/108:00:131
305249970,0cyclictest0-21swapper/107:45:151
305249970,0cyclictest0-21swapper/107:30:111
305239977,0cyclictest23376-21diskmemload11:51:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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