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2026-07-27 - 05:17
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack1slot2.osadl.org (updated Mon Jul 27, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
596825049,0sleep10-21swapper/119:24:121
624224231,0sleep20-21swapper/219:27:252
602623632,0sleep30-21swapper/319:24:543
620223319,0sleep00-21swapper/019:26:550
8305070,0irq/26-0000:00:13704-21munin-run20:18:403
8305060,0irq/26-0000:00:4179-21if_eth1.219:48:563
8305060,0irq/26-0000:00:28069-21idleruntime-cro20:28:403
64509960,0cyclictest0-21swapper/000:15:470
339960,0migration/330044-21sh23:46:113
339960,0migration/328300-21sh23:26:203
339960,0migration/323005-21sh22:26:213
339960,0migration/313012-21needreboot22:19:013
29805060,0irq/28-eth0-rx-27263-21grep00:23:573
64639955,0cyclictest0-21swapper/220:34:002
64509955,0cyclictest0-21swapper/023:07:590
64509955,0cyclictest0-21swapper/022:59:100
64509955,0cyclictest0-21swapper/022:51:070
64509955,0cyclictest0-21swapper/022:43:520
64509955,0cyclictest0-21swapper/000:41:000
64509954,0cyclictest3307-21ssh00:46:410
64509950,0cyclictest0-21swapper/022:29:220
64509950,0cyclictest0-21swapper/021:47:260
64509950,0cyclictest0-21swapper/020:58:520
64509950,0cyclictest0-21swapper/000:03:100
339950,0migration/38551-21kthreadcore19:28:583
339950,0migration/34295-21kthreadcore00:08:593
339950,0migration/34136-21kthreadcore00:29:013
339950,0migration/332615-21aten_r1power_en22:33:533
339950,0migration/331619-21kthreadcore20:29:003
339950,0migration/331251-21aten_r1power_fr23:48:533
339950,0migration/330852-21taskset21:13:583
339950,0migration/330364-21kthreadcore19:43:583
339950,0migration/330169-21kthreadcore23:08:573
339950,0migration/327801-21kthreadcore22:08:583
339950,0migration/326604-21kthreadcore21:09:003
339950,0migration/326070-21kthreadcore19:38:573
339950,0migration/318975-21idleruntime21:28:563
339950,0migration/318252-21gltestperf22:43:563
339950,0migration/318228-21munin-node00:18:563
339950,0migration/316840-21kthreadcore21:03:573
339950,0migration/315648-21kthreadcore00:34:003
339950,0migration/310127-21smart_sda23:14:043
329950,0watchdog/3298050irq/28-eth0-rx-00:56:003
329950,0watchdog/318937-21kthreadcore23:59:003
329950,0watchdog/315465-21kthreadcore21:44:003
329950,0watchdog/313498-21grep20:59:073
329950,0watchdog/311671-21grep21:23:563
329950,0watchdog/311158-21tr23:34:003
29815050,0irq/29-eth0-tx-8787-21munin-node22:38:552
29815050,0irq/29-eth0-tx-5571-21munin-node23:33:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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