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2025-01-23 - 21:28
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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 Thu Jan 23, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81850rcu_preempt7104-21netstat11:47:511
81780rcu_preempt29029-21fw_conntrack07:17:430
81770rcu_preempt19-21ksoftirqd/111:47:251
81730rcu_preempt4707-21sh12:47:210
81720rcu_preempt0-21swapper/012:32:500
81720rcu_preempt0-21swapper/008:32:490
81710rcu_preempt8914-21ssh11:52:100
81710rcu_preempt0-21swapper/011:52:430
81710rcu_preempt0-21swapper/011:27:490
81710rcu_preempt0-21swapper/008:22:480
81700rcu_preempt0-21swapper/012:21:300
81700rcu_preempt0-21swapper/009:44:490
81700rcu_preempt0-21swapper/007:48:010
89950690irq/17-ehci_hcd7634-1kworker/1:2H09:21:401
81680rcu_preempt0-21swapper/009:21:520
81670rcu_preempt0-21swapper/010:54:000
81660rcu_preempt19144-21ssh11:07:530
81660rcu_preempt16602-21apt-get08:37:420
81650rcu_preempt4806-21kworker/u4:110:07:521
89150640irq/17-ehci_hcd945-21usb-storage12:27:420
81640rcu_preempt1501-21ssh12:41:090
81640rcu_preempt0-21swapper/007:52:460
81640rcu_preempt0-21swapper/007:52:460
89950630irq/17-ehci_hcd181ktimersoftd/107:17:391
81630rcu_preempt6520-21cpu07:57:400
81630rcu_preempt0-21swapper/109:10:091
81630rcu_preempt0-21swapper/009:27:380
81620rcu_preempt9721-21ssh09:47:481
81620rcu_preempt4239-21ssh09:36:550
81620rcu_preempt24083-21ssh10:13:561
81620rcu_preempt23475-21ssh11:16:311
81620rcu_preempt0-21swapper/110:19:301
81620rcu_preempt0-21swapper/108:40:471
81620rcu_preempt0-21swapper/011:37:180
81610rcu_preempt24021-21sh10:13:420
81610rcu_preempt0-21swapper/112:29:311
81610rcu_preempt0-21swapper/111:41:591
81610rcu_preempt0-21swapper/110:54:121
81610rcu_preempt0-21swapper/110:02:421
81610rcu_preempt0-21swapper/109:28:111
81610rcu_preempt0-21swapper/012:00:460
81600rcu_preempt436-21ssh11:33:371
81600rcu_preempt3-21ksoftirqd/010:22:370
81600rcu_preempt26039-21ssh11:22:411
81600rcu_preempt20238-21ssh11:10:341
81600rcu_preempt18499-21ssh12:10:101
81600rcu_preempt15821-21ssh12:05:331
81600rcu_preempt14465-21ssh10:59:491
81600rcu_preempt10016-21ssh10:50:281
81600rcu_preempt0-21swapper/110:22:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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