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2025-11-29 - 08:16
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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 50 highest latencies:
System rackcslot3.osadl.org (updated Sat Nov 29, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt0-21swapper/123:44:461
81720rcu_preempt0-21swapper/119:07:091
81710rcu_preempt18591-21sh23:58:561
81710rcu_preempt10998-21switchtime21:40:131
81700rcu_preempt24577-21sh23:08:550
81690rcu_preempt22639-21fw_conntrack23:05:041
81690rcu_preempt0-21swapper/100:15:021
81690rcu_preempt0-21swapper/021:20:130
81690rcu_preempt0-21swapper/000:06:190
81680rcu_preempt0-21swapper/122:25:011
81680rcu_preempt0-21swapper/023:34:380
81680rcu_preempt0-21swapper/022:30:150
81680rcu_preempt0-21swapper/019:30:060
81670rcu_preempt2973-21sshd23:29:391
81670rcu_preempt27365-21sh23:14:301
81670rcu_preempt25043-21ssh22:07:561
81670rcu_preempt0-21swapper/123:34:481
81670rcu_preempt0-21swapper/021:30:350
81660rcu_preempt3913-21apt-get00:34:591
81660rcu_preempt2991-21latency_hist19:39:480
81660rcu_preempt2699-21processes21:25:110
81660rcu_preempt25727-21diskmemload23:46:101
81660rcu_preempt0-21swapper/122:39:451
81660rcu_preempt0-21swapper/100:25:401
81660rcu_preempt0-21swapper/100:22:301
81660rcu_preempt0-21swapper/022:05:040
81650rcu_preempt0-21swapper/122:15:071
81650rcu_preempt0-21swapper/121:50:241
81650rcu_preempt0-21swapper/100:30:071
81640rcu_preempt0-21swapper/123:02:351
81640rcu_preempt0-21swapper/122:30:481
81640rcu_preempt0-21swapper/100:00:491
81640rcu_preempt0-21swapper/021:16:180
81630rcu_preempt9942-21ntpq22:40:091
81630rcu_preempt0-21swapper/122:55:151
81630rcu_preempt0-21swapper/000:34:250
81630rcu_preempt0-21swapper/000:20:040
81620rcu_preempt29417-21ssh23:17:290
81620rcu_preempt0-21swapper/123:21:301
81620rcu_preempt0-21swapper/122:45:311
81620rcu_preempt0-21swapper/121:27:391
81620rcu_preempt0-21swapper/121:14:421
81620rcu_preempt0-21swapper/119:22:271
81620rcu_preempt0-21swapper/022:00:050
81620rcu_preempt0-21swapper/021:55:020
81620rcu_preempt0-21swapper/019:45:000
81610rcu_preempt18123-21sshd20:37:091
81610rcu_preempt0-21swapper/123:35:421
81610rcu_preempt0-21swapper/120:34:481
81610rcu_preempt0-21swapper/100:10:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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