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2025-05-02 - 12:19
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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 Fri May 02, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt19-21ksoftirqd/122:11:451
81770rcu_preempt0-21swapper/023:19:330
89850750irq/17-ehci_hcd945-21usb-storage22:17:530
81720rcu_preempt11546-21sh23:47:030
151050720irq/28-eth0-rx-24383-21kworker/1:119:11:011
81710rcu_preempt2222-21ssh22:30:040
81710rcu_preempt0-21swapper/020:59:080
81690rcu_preempt5176-21ssh00:35:510
81690rcu_preempt0-21swapper/021:26:110
89850680irq/17-ehci_hcd32759-1kworker/0:2H00:04:050
81680rcu_preempt0-21swapper/122:43:411
81680rcu_preempt0-21swapper/121:51:141
81680rcu_preempt0-21swapper/023:24:120
81680rcu_preempt0-21swapper/019:59:450
89850670irq/17-ehci_hcd2363-21sh00:30:491
81670rcu_preempt5114-21irqstats19:59:121
81670rcu_preempt17841-21needreboot20:49:160
81670rcu_preempt0-21swapper/121:41:121
81670rcu_preempt0-21swapper/023:39:230
81660rcu_preempt0-21swapper/119:50:121
81660rcu_preempt0-21swapper/023:10:560
81660rcu_preempt0-21swapper/000:21:090
81650rcu_preempt21862-21ssh00:05:211
81650rcu_preempt1423-21needreboot00:29:120
81650rcu_preempt13075-21ssh23:49:171
81650rcu_preempt0-21swapper/123:33:011
81650rcu_preempt0-21swapper/123:14:351
81650rcu_preempt0-21swapper/019:09:100
81640rcu_preempt4814-21ssh00:34:401
81640rcu_preempt22303-21df_abs22:09:080
81640rcu_preempt20874-21ssh22:05:311
81640rcu_preempt0-21swapper/121:44:161
81640rcu_preempt0-21swapper/119:54:571
81640rcu_preempt0-21swapper/021:57:280
81640rcu_preempt0-21swapper/019:39:040
81630rcu_preempt16478-21ssh22:56:271
81630rcu_preempt0-21swapper/021:49:140
81630rcu_preempt0-21swapper/020:29:060
81630rcu_preempt0-21swapper/019:19:030
81620rcu_preempt6663-21ssh23:38:421
81620rcu_preempt31997-21ssh21:28:481
81620rcu_preempt22149-21ssh23:07:150
81620rcu_preempt2091-21snmpd22:59:031
81620rcu_preempt12077-21ssh23:48:501
81620rcu_preempt0-21swapper/122:44:211
81620rcu_preempt0-21swapper/100:43:241
81620rcu_preempt0-21swapper/020:54:180
81620rcu_preempt0-21swapper/000:12:510
81610rcu_preempt32759-1kworker/0:2H00:15:350
81610rcu_preempt19306-21ssh00:00:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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