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2026-06-05 - 21:04
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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 Fri Jun 05, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81840rcu_preempt1662-1kworker/0:2H10:50:280
81770rcu_preempt0-21swapper/107:12:501
81740rcu_preempt6370-21latency_hist08:18:061
81740rcu_preempt2364-21idleruntime-cro10:38:060
81720rcu_preempt0-21swapper/109:58:211
81710rcu_preempt18780-21df10:08:210
81710rcu_preempt17877-21ssh10:06:250
81710rcu_preempt12566-21ssh09:56:550
81710rcu_preempt12566-21ssh09:56:550
81710rcu_preempt0-21swapper/008:53:200
81700rcu_preempt25210-21df_inode07:23:210
81700rcu_preempt24964-21apt-get07:23:181
81700rcu_preempt20228-21diskmemload10:31:561
81700rcu_preempt20228-21diskmemload09:19:330
81700rcu_preempt11078-21memory09:53:261
81700rcu_preempt11078-21memory09:53:261
81700rcu_preempt0-21swapper/109:18:401
81700rcu_preempt0-21swapper/009:58:300
81690rcu_preempt28980-21df09:28:210
81690rcu_preempt20683-21diskstats09:13:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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