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2026-06-08 - 00:42
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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 Sun Jun 07, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811000rcu_preempt24799-21diskmemload12:10:021
81720rcu_preempt29007-21ssh11:18:360
81710rcu_preempt15031-21diskstats08:33:300
81710rcu_preempt11277-21sh11:45:040
81700rcu_preempt8231-21ssh11:39:011
81700rcu_preempt0-21swapper/109:28:411
81700rcu_preempt0-21swapper/012:27:490
81700rcu_preempt0-21swapper/011:23:440
146250700irq/28-eth0-rx-945-21usb-storage11:02:391
81690rcu_preempt0-21swapper/009:54:370
81690rcu_preempt0-21swapper/009:37:160
81680rcu_preempt28650-21apt-get12:18:291
81680rcu_preempt25658-21/usr/sbin/munin07:08:320
81680rcu_preempt10852-21munin-run08:18:170
81680rcu_preempt0-21swapper/109:50:241
81680rcu_preempt0-21swapper/109:34:131
81680rcu_preempt0-21swapper/109:16:031
81680rcu_preempt0-21swapper/011:09:290
89950670irq/17-ehci_hcd945-21usb-storage08:31:320
81670rcu_preempt0-21swapper/111:18:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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