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2026-06-13 - 07:40
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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 Sat Jun 13, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2936424435,0sleep30-21swapper/319:21:183
2931023927,0sleep20-21swapper/219:20:412
2950723223,0sleep10-21swapper/119:23:001
2939523228,0sleep00-21swapper/019:21:390
29757992323,0cyclictest27779-21awk20:30:191
29758991918,0cyclictest31100-21sadc22:15:052
339960,0migration/329640-21sh00:24:413
339960,0migration/326109-21sh22:47:343
339960,0migration/320915-21kthreadcore20:00:223
339960,0migration/315059-21munin-node22:05:193
339960,0migration/311736-21sh00:12:593
29815060,0irq/29-eth0-tx-12342-21munin-node20:20:180
29805060,0irq/28-eth0-rx-22005-21ssh00:36:213
297579966,0cyclictest3524-21snmpd23:56:551
297579965,0cyclictest22200-21ps22:45:201
297579960,0cyclictest0-21swapper/121:57:521
297569960,0cyclictest0-21swapper/023:20:300
169960,0watchdog/14080-21python20:10:281
149960,0migration/08204-21sh22:35:500
149960,0migration/028556-21sh23:08:050
149960,0migration/026162-21sh22:47:430
149960,0migration/023576-21runrttasks00:40:100
149960,0migration/022424-21sh00:37:330
149960,0migration/01942-21fschecks_count20:35:160
149960,0migration/011359-21munin-node19:30:290
35150,0ktimersoftd/30-21swapper/300:08:113
339950,0migration/39822-21kthreadcore21:00:223
339950,0migration/37513-21kthreadcore21:40:203
339950,0migration/35499-21aten_r1power_fr22:00:153
339950,0migration/35359-21kthreadcore21:20:233
339950,0migration/332443-21kthreadcore20:10:233
339950,0migration/332349-21sh23:45:463
339950,0migration/331760-21irqrtprio20:55:213
339950,0migration/329829-21fschecks_time21:55:193
339950,0migration/329511-21kthreadcore21:15:223
339950,0migration/329511-21kthreadcore21:15:223
339950,0migration/323212-21aten_r1power_cu23:25:153
339950,0migration/322347-21kthreadcore21:10:233
339950,0migration/318869-21needreboot00:15:293
339950,0migration/318318-21taskset21:05:223
339950,0migration/315418-21fschecks_time23:20:203
339950,0migration/313302-21kthreadcore20:40:213
339950,0migration/312869-21fschecks_count23:00:193
339950,0migration/311279-21kthreadcore22:20:223
329950,0watchdog/35389-21taskset22:15:283
329950,0watchdog/31301-21aten_r1power_en19:50:163
329950,0watchdog/310089-21irqrtprio19:55:203
29815050,0irq/29-eth0-tx-27079-21munin-node23:45:212
29815050,0irq/29-eth0-tx-25056-21munin-node22:30:152
29815050,0irq/29-eth0-tx-0-21swapper/021:25:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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