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2026-07-13 - 23:32
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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 Jul 13, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt19964-21apt-get10:31:301
81740rcu_preempt25858-21df_abs09:46:341
81740rcu_preempt0-21swapper/011:45:090
89950730irq/17-ehci_hcd171rcuc/109:27:141
81720rcu_preempt8967-21ntp_offset11:06:411
81720rcu_preempt31690-21sh10:51:211
81720rcu_preempt24809-21sh09:44:281
81720rcu_preempt0-21swapper/107:51:371
81720rcu_preempt0-21swapper/009:56:350
81710rcu_preempt25606-21/usr/sbin/munin09:46:360
81710rcu_preempt16437-21sh10:25:260
81710rcu_preempt0-21swapper/012:02:290
81710rcu_preempt0-21swapper/011:51:130
81710rcu_preempt0-21swapper/010:32:400
81700rcu_preempt4964-21/usr/sbin/munin10:06:180
81700rcu_preempt21398-21irqstats08:01:380
81700rcu_preempt0-21swapper/112:08:471
81700rcu_preempt0-21swapper/111:55:351
81700rcu_preempt0-21swapper/011:37:460
81700rcu_preempt0-21swapper/011:28:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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