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2025-11-14 - 00:06
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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 Thu Nov 13, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt0-21swapper/107:08:481
81710rcu_preempt17921-21rm11:54:001
81690rcu_preempt4374-21sh10:34:091
81690rcu_preempt0-21swapper/110:00:411
81680rcu_preempt32240-1kworker/0:1H10:46:380
81680rcu_preempt19045-21ssh11:55:201
81680rcu_preempt0-21swapper/110:49:421
81670rcu_preempt20925-21sh11:59:320
81670rcu_preempt0-21swapper/109:47:241
81660rcu_preempt9821-21sh12:35:370
81660rcu_preempt22421-21ssh09:16:131
81660rcu_preempt0-21swapper/112:28:251
81660rcu_preempt0-21swapper/112:13:231
81660rcu_preempt0-21swapper/112:04:151
81660rcu_preempt0-21swapper/111:29:321
81660rcu_preempt0-21swapper/111:17:591
81660rcu_preempt0-21swapper/111:05:261
81660rcu_preempt0-21swapper/109:10:531
81660rcu_preempt0-21swapper/009:29:580
81650rcu_preempt4889-21ssh09:41:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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