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2026-06-09 - 01:59
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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 Tue Jun 09, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1177326766,0sleep10-21swapper/119:24:141
1169224434,0sleep30-21swapper/319:23:203
1165123924,0sleep00-21swapper/019:22:490
1174122723,0sleep20-21swapper/219:23:512
339960,0migration/39849-21sh22:49:573
339960,0migration/36167-21sh23:42:003
339960,0migration/324333-21sh23:54:353
339960,0migration/323328-21sh22:19:583
339960,0migration/312076-21sh23:25:313
339960,0migration/31041-21sh23:00:173
329960,0watchdog/36917-21tr19:40:043
29805060,0irq/28-eth0-rx-9997-21iostat_ios21:35:013
29805060,0irq/28-eth0-rx-6314-21runrttasks23:06:483
29805060,0irq/28-eth0-rx-20036-21sendmail_mailqu22:15:073
29805060,0irq/28-eth0-rx-19649-21ssh00:28:163
29805060,0irq/28-eth0-rx-15917-21cut20:10:033
179960,0migration/19726-21sh23:05:151
149960,0migration/019990-21sh23:14:440
339950,0migration/3798-21switchtime21:05:103
339950,0migration/37494-21timerandwakeup00:00:113
339950,0migration/327786-21irqcore21:45:023
339950,0migration/326855-21munin-node20:19:593
339950,0migration/325200-21runrttasks21:42:273
339950,0migration/323382-21kthreadcore19:30:033
339950,0migration/322608-21kthreadcore22:00:033
339950,0migration/31958-21kthreadcore22:25:023
339950,0migration/319309-21kthreadcore19:50:033
339950,0migration/318684-21kthreadcore21:20:033
339950,0migration/318341-21munin-node21:55:123
339950,0migration/31825-21aten_r1power_en21:09:563
339950,0migration/315904-21aten_r1power_en22:34:583
339950,0migration/314695-21fschecks_time00:44:593
339950,0migration/311584-21kthreadcore23:45:033
339950,0migration/311022-21munin-node20:05:033
339950,0migration/310042-21kthreadcore20:50:043
329950,0watchdog/36348-21irqcore22:10:003
329950,0watchdog/33650-21tune2fs00:20:013
329950,0watchdog/3298050irq/28-eth0-rx-22:30:013
329950,0watchdog/315154-21python20:30:083
329950,0watchdog/314599-21fschecks_time23:29:573
29815050,0irq/29-eth0-tx-24692-21munin-node23:54:582
29815050,0irq/29-eth0-tx-0-21swapper/222:35:082
29815050,0irq/29-eth0-tx-0-21swapper/200:27:322
29805050,0irq/28-eth0-rx-9053-21sed21:14:463
29805050,0irq/28-eth0-rx-4886-21cut22:45:033
29805050,0irq/28-eth0-rx-4527-40yum-updatesd-he23:23:403
29805050,0irq/28-eth0-rx-30808-21sensors22:40:063
29805050,0irq/28-eth0-rx-2836-21awk21:49:463
29805050,0irq/28-eth0-rx-27679-21grep21:25:033
29805050,0irq/28-eth0-rx-22728-21ssh00:49:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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