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2026-06-20 - 15:22
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackcslot3.osadl.org (updated Sat Jun 20, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt0-21swapper/009:26:530
146550750irq/30-eth0-tx-0-21swapper/008:29:430
81740rcu_preempt423-21diskmemload12:39:410
81740rcu_preempt423-21diskmemload10:17:440
81720rcu_preempt10060-21ssh11:30:050
81710rcu_preempt20472-21ssh10:49:441
81710rcu_preempt0-21swapper/007:54:370
81700rcu_preempt0-21swapper/011:58:330
81700rcu_preempt0-21swapper/011:51:000
81700rcu_preempt0-21swapper/009:19:410
81700rcu_preempt0-21swapper/008:54:400
81690rcu_preempt0-21swapper/109:39:391
81680rcu_preempt28937-21vmstat11:04:510
81680rcu_preempt16745-1kworker/0:2H12:18:130
81680rcu_preempt10147-21sh12:32:080
81680rcu_preempt0-21swapper/109:44:511
81680rcu_preempt0-21swapper/007:34:400
81670rcu_preempt15943-21ssh10:41:021
81670rcu_preempt0-21swapper/107:27:271
81670rcu_preempt0-21swapper/011:11:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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