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2026-07-21 - 22:55
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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 Tue Jul 21, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314512211160,26sleep30-21swapper/307:07:113
315112200164,23sleep10-21swapper/107:07:581
315392199160,25sleep20-21swapper/207:08:192
315942197157,26sleep00-21swapper/007:09:000
70832740,1sleep27079-21dump-pmu-power07:25:012
20772580,0sleep10-21swapper/110:07:561
31766991713,1cyclictest28-21ksoftirqd/211:27:582
97302140,0sleep20-21swapper/209:33:202
110452130,0sleep10-21swapper/107:30:201
31766991211,1cyclictest28-21ksoftirqd/209:55:212
31766991210,1cyclictest28-21ksoftirqd/207:34:592
3176699119,1cyclictest28-21ksoftirqd/211:10:212
3176699119,1cyclictest28-21ksoftirqd/211:05:162
3176699119,1cyclictest28-21ksoftirqd/210:55:182
3176699119,1cyclictest28-21ksoftirqd/209:15:222
3176699119,1cyclictest28-21ksoftirqd/208:05:172
31766991110,1cyclictest28-21ksoftirqd/212:20:222
31766991110,1cyclictest28-21ksoftirqd/212:05:192
31766991110,1cyclictest28-21ksoftirqd/211:40:162
31766991110,1cyclictest28-21ksoftirqd/209:40:202
31766991110,1cyclictest28-21ksoftirqd/208:20:152
3176699110,4cyclictest24812-21diskmemload10:20:202
3175299112,4cyclictest6291-21perf10:15:010
3177499109,1cyclictest745-21lldpd10:50:453
3176699109,1cyclictest31501-21apt-get08:15:122
3176699109,1cyclictest28-21ksoftirqd/211:50:152
3176699109,1cyclictest28-21ksoftirqd/211:15:002
3176699108,1cyclictest28-21ksoftirqd/210:45:132
3176699108,1cyclictest28-21ksoftirqd/209:35:162
31766991010,0cyclictest28-21ksoftirqd/209:23:042
3176699100,9cyclictest0-21swapper/212:35:112
3176699100,7cyclictest12194-21apt-get11:55:132
3175299103,6cyclictest11480-21perf12:40:000
3175299102,4cyclictest16720-21munin-run07:45:000
3175299101,4cyclictest12639-21latency_hist11:10:000
317749998,1cyclictest35-21ksoftirqd/308:10:013
317749990,3cyclictest0-21swapper/307:15:123
317669998,1cyclictest28-21ksoftirqd/212:30:222
317669998,1cyclictest28-21ksoftirqd/211:20:142
317669998,1cyclictest28-21ksoftirqd/211:00:132
317669998,1cyclictest28-21ksoftirqd/210:50:192
317669998,1cyclictest28-21ksoftirqd/210:10:152
317669998,1cyclictest28-21ksoftirqd/208:55:162
317669998,1cyclictest28-21ksoftirqd/207:50:132
317669998,1cyclictest28-21ksoftirqd/207:25:192
317669997,1cyclictest28-21ksoftirqd/208:50:132
317529992,5cyclictest561-21nscd11:37:070
317529991,4cyclictest19037-21perf12:05:000
317749987,1cyclictest35-21ksoftirqd/311:55:003
317749987,1cyclictest35-21ksoftirqd/307:49:593
317749983,3cyclictest5605-21seq10:12:583
317749981,4cyclictest2821-21systemctl08:20:213
317749980,4cyclictest12308-21/usr/sbin/munin11:55:143
317749980,2cyclictest0-21swapper/309:05:113
317669988,0cyclictest28-21ksoftirqd/210:39:592
317669987,1cyclictest28-21ksoftirqd/211:45:222
317669987,1cyclictest28-21ksoftirqd/210:30:172
317669987,1cyclictest28-21ksoftirqd/210:15:162
317669987,1cyclictest28-21ksoftirqd/210:05:142
317669987,1cyclictest28-21ksoftirqd/210:03:332
317669987,1cyclictest28-21ksoftirqd/207:40:142
317669986,1cyclictest61650irq/122-eno109:45:172
317669986,1cyclictest28-21ksoftirqd/212:15:142
317669986,1cyclictest28-21ksoftirqd/208:44:592
317669984,4cyclictest4281-21sh12:29:392
317669983,2cyclictest61650irq/122-eno110:40:352
317669983,2cyclictest61650irq/122-eno110:40:342
317669980,4cyclictest693-21runrttasks10:25:572
317669980,3cyclictest0-21swapper/209:50:122
317669980,1cyclictest0-21swapper/208:25:122
317589980,8cyclictest0-21swapper/107:20:191
317589980,5cyclictest0-21swapper/108:45:141
317589980,4cyclictest0-21swapper/111:15:131
317589980,1cyclictest0-21swapper/112:18:171
317529984,2cyclictest548-21systemd-logind10:40:190
317529984,2cyclictest548-21systemd-logind10:40:190
317529984,2cyclictest240-21systemd-journal11:04:590
317529982,3cyclictest22731-21perf12:10:000
317529980,7cyclictest30019-21ssh10:00:310
317529980,7cyclictest15250-21ssh11:12:110
317529980,7cyclictest1486-21ssh10:06:010
317529980,5cyclictest561-21nscd08:40:190
317529980,4cyclictest6730-21perf09:30:000
317529980,4cyclictest24812-21diskmemload10:15:050
317749976,1cyclictest35-21ksoftirqd/309:15:003
317749975,1cyclictest26773-21ssh09:56:293
317749975,1cyclictest22753-21cat07:55:173
317749975,1cyclictest15609-21apt-get08:50:123
317749975,1cyclictest12622-21ssh11:09:593
317749975,0cyclictest13650irq/124-ahci[0008:29:563
317749973,3cyclictest35-21ksoftirqd/310:03:333
317749972,2cyclictest24812-21diskmemload12:04:473
317749972,2cyclictest14418-21ntp_states08:45:183
317749972,0cyclictest14842-21ssh11:10:503
317749971,4cyclictest23097-21runrttasks09:51:023
317749971,4cyclictest0-21swapper/312:20:123
317749971,4cyclictest0-21swapper/311:16:173
317749970,6cyclictest19957-21apt-get11:20:113
317749970,4cyclictest0-21swapper/309:40:453
317749970,3cyclictest0-21swapper/312:14:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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