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2025-12-01 - 07:46
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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 Dec 01, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90050790irq/17-ehci_hcd946-21usb-storage19:06:281
81730rcu_preempt28006-21ntp_states22:45:100
81710rcu_preempt26486-21ssh21:40:281
81700rcu_preempt0-21swapper/021:10:080
81700rcu_preempt0-21swapper/000:07:180
81690rcu_preempt0-21swapper/000:10:030
81680rcu_preempt6950-21head21:00:080
81680rcu_preempt6404-21fw_conntrack22:05:040
81680rcu_preempt23654-21ssh21:35:170
81680rcu_preempt0-21swapper/023:45:400
81680rcu_preempt0-21swapper/023:00:530
81670rcu_preempt0-21swapper/123:08:101
81660rcu_preempt8644-21if_eth023:10:061
81660rcu_preempt29279-21/usr/sbin/munin23:50:141
81660rcu_preempt0-21swapper/123:23:231
81660rcu_preempt0-21swapper/122:15:101
151850660irq/30-eth0-tx-12867-21ssh00:22:460
81650rcu_preempt30713-21df_abs21:50:020
81650rcu_preempt0-21swapper/123:16:541
81650rcu_preempt0-21swapper/121:32:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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