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2026-08-11 - 02:32
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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 Mon Aug 10, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt0-21swapper/010:57:340
146550780irq/30-eth0-tx-41ktimersoftd/010:59:390
81720rcu_preempt9064-21sh10:12:191
81720rcu_preempt0-21swapper/107:17:241
81710rcu_preempt6289-21ssh11:06:101
81710rcu_preempt0-21swapper/109:44:511
81710rcu_preempt0-21swapper/109:20:131
81710rcu_preempt0-21swapper/009:04:080
81700rcu_preempt15331-21apt-get11:23:501
81700rcu_preempt1072-21sh11:56:470
81700rcu_preempt0-21swapper/112:20:551
81700rcu_preempt0-21swapper/012:45:390
81700rcu_preempt0-21swapper/012:29:030
81700rcu_preempt0-21swapper/011:44:390
81700rcu_preempt0-21swapper/010:35:290
81700rcu_preempt0-21swapper/009:54:030
81700rcu_preempt0-21swapper/009:43:110
81700rcu_preempt0-21swapper/007:58:380
81690rcu_preempt8417-1kworker/0:1H10:51:440
81690rcu_preempt11464-21diskmemload10:05:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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