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2026-05-14 - 11:26
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackfslot4.osadl.org (updated Thu May 14, 2026 00:45:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2970123550,5sleep229702-21/usr/sbin/munin20:05:382
2970123550,5sleep229702-21/usr/sbin/munin20:05:382
1168423380,3sleep1687-21kworker/u8:223:15:241
1965523370,2sleep20-21swapper/223:33:262
1965523370,2sleep20-21swapper/223:33:262
1093723310,2sleep10-21swapper/119:10:161
798923190,2sleep23255-21kworker/2:223:08:182
1981923100,2sleep10-21swapper/122:24:321
1951323030,2sleep20-21swapper/219:35:182
2728923020,2sleep2241rcuc/222:40:132
3105922990,1sleep1121rcu_preempt23:57:191
3232322970,1sleep128529-21kworker/u8:922:50:231
887222950,1sleep25396-21kworker/u8:723:10:192
1804422940,3sleep218043-21ssh21:10:152
1804422940,3sleep218043-21ssh21:10:142
500522930,4sleep1191ksoftirqd/120:30:211
2173822930,2sleep2121rcu_preempt23:37:322
1538822870,2sleep10-21swapper/121:00:331
686622860,2sleep16857-21ssh21:55:281
3258922820,2sleep10-21swapper/100:00:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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