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2026-06-02 - 03:21
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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 Tue Jun 02, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt8873-21turbostat.cron19:12:441
81790rcu_preempt8133-21grep21:13:151
81770rcu_preempt19-21ksoftirqd/123:29:171
81770rcu_preempt0-21swapper/122:23:111
81770rcu_preempt0-21swapper/122:13:131
81740rcu_preempt27051-21ssh21:48:030
81720rcu_preempt0-21swapper/000:38:130
81710rcu_preempt0-21swapper/020:18:110
81700rcu_preempt14161-21diskstats23:23:040
81700rcu_preempt0-21swapper/100:42:221
81700rcu_preempt0-21swapper/022:40:240
81690rcu_preempt20145-21ntp_states23:33:120
81690rcu_preempt19-21ksoftirqd/122:03:491
81690rcu_preempt0-21swapper/021:31:220
146650690irq/31-eth0-tx-945-21usb-storage21:56:520
146650690irq/31-eth0-tx-945-21usb-storage19:10:480
81680rcu_preempt0-21swapper/022:15:090
81670rcu_preempt0-21swapper/023:48:060
81670rcu_preempt0-21swapper/022:49:250
81670rcu_preempt0-21swapper/000:23:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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