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2026-09-05 - 23:27
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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 Sep 05, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
899501060irq/17-ehci_hcd10843-21/usr/sbin/munin07:16:160
81750rcu_preempt23023-21apt-get10:51:001
81740rcu_preempt21056-21apt-get11:51:021
81740rcu_preempt19141-21ssh09:40:071
81740rcu_preempt10144-21timerandwakeup09:21:161
81730rcu_preempt14538-21ssh12:41:121
81720rcu_preempt30098-21ssh11:04:511
81710rcu_preempt27744-21df_inode08:26:021
81710rcu_preempt18056-21apt-get10:41:051
81710rcu_preempt0-21swapper/112:36:151
81700rcu_preempt21128-21sh09:42:491
81700rcu_preempt19-21ksoftirqd/112:01:191
81700rcu_preempt12329-21sh11:32:081
81700rcu_preempt0-21swapper/110:33:531
81700rcu_preempt0-21swapper/110:06:091
81690rcu_preempt4661-21sh10:14:271
81690rcu_preempt0-21swapper/110:22:561
81690rcu_preempt0-21swapper/010:31:560
81680rcu_preempt21764-21sh10:46:470
81680rcu_preempt0-21swapper/111:46:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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