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2026-07-05 - 07:07
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack1slot2.osadl.org (updated Sun Jul 05, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3195225039,0sleep30-21swapper/319:23:153
3207124334,0sleep10-21swapper/119:24:371
3191823526,0sleep20-21swapper/219:22:542
3197023423,0sleep00-21swapper/019:23:280
339970,0migration/331154-21sh00:24:093
35160,0ktimersoftd/310622-21aten2.4-expect22:22:043
339960,0migration/39187-21sh23:33:463
339960,0migration/315659-21runrttasks23:19:013
339960,0migration/311548-21sh23:53:583
323359965,0cyclictest0-21swapper/220:07:062
323349965,0cyclictest974-21irqrtprio23:12:101
323349965,0cyclictest24050-21unixbench_multi00:37:181
323349960,0cyclictest0-21swapper/123:32:191
323339965,0cyclictest0-21swapper/023:27:520
323339960,0cyclictest0-21swapper/021:17:200
29815060,0irq/29-eth0-tx-11370-21munin-node20:42:090
29805060,0irq/28-eth0-rx-22679-21kthreadcore23:22:133
169960,0watchdog/119286-21grep23:22:121
149960,0migration/014716-21sh00:16:280
149960,0migration/010022-21sh23:36:030
339950,0migration/39571-21fschecks_time00:32:063
339950,0migration/35201-21kthreadcore00:47:123
339950,0migration/33955-21munin-node20:12:103
339950,0migration/3316-21fschecks_time23:12:073
339950,0migration/330403-21cpuspeed_turbos00:07:053
339950,0migration/329506-21runrttasks20:32:033
339950,0migration/328940-21taskset00:04:173
339950,0migration/32706-21munin-node19:47:133
339950,0migration/326571-21munin-node20:07:073
339950,0migration/325015-21kthreadcore21:12:113
339950,0migration/324436-21pmu-power20:02:123
339950,0migration/32392-21kthreadcore21:57:103
339950,0migration/321722-21latency_hist19:41:523
339950,0migration/321693-21kthreadcore20:47:123
339950,0migration/321364-21kthreadcore22:27:093
339950,0migration/320666-21kthreadcore00:37:103
339950,0migration/319644-21munin-node23:42:063
339950,0migration/318127-21munin-node22:07:083
339950,0migration/317873-21kthreadcore21:47:103
339950,0migration/314163-21taskset19:33:483
339950,0migration/312214-21munin-node21:42:163
339950,0migration/311622-21aten_r1power_cu21:27:053
339950,0migration/311437-21fschecks_time23:37:053
339950,0migration/310859-21munin-node21:22:213
323359955,0cyclictest0-21swapper/200:03:162
323359954,0cyclictest3524-21snmpd00:28:292
323359950,0cyclictest0-21swapper/222:43:582
323359950,0cyclictest0-21swapper/221:44:042
323359950,0cyclictest0-21swapper/200:50:342
323349955,0cyclictest11338-21diskmemload23:37:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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