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2025-12-06 - 01:03
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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 100 highest latencies:
System rackcslot3.osadl.org (updated Fri Dec 05, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81720rcu_preempt32243-21sshd07:05:120
81700rcu_preempt22769-1kworker/0:1H11:54:310
81690rcu_preempt0-21swapper/011:55:310
81690rcu_preempt0-21swapper/010:45:160
81690rcu_preempt0-21swapper/010:45:160
90050670irq/17-ehci_hcd22769-1kworker/0:1H11:32:090
81670rcu_preempt0-21swapper/111:16:121
81660rcu_preempt12640-21diskmemload09:40:370
81660rcu_preempt0-21swapper/111:05:251
81660rcu_preempt0-21swapper/109:35:071
81660rcu_preempt0-21swapper/011:11:290
81650rcu_preempt15272-21ssh12:04:571
81650rcu_preempt0-21swapper/112:29:471
151450650irq/28-eth0-rx-41ktimersoftd/010:40:310
81640rcu_preempt8896-21memory10:55:040
81640rcu_preempt29484-21ssh10:35:001
81640rcu_preempt10536-21sh10:00:150
81640rcu_preempt0-21swapper/111:58:191
81640rcu_preempt0-21swapper/108:40:421
81640rcu_preempt0-21swapper/012:07:300
81630rcu_preempt0-21swapper/112:28:581
81630rcu_preempt0-21swapper/111:21:381
81630rcu_preempt0-21swapper/110:44:041
81630rcu_preempt0-21swapper/110:30:091
81630rcu_preempt0-21swapper/110:26:121
81630rcu_preempt0-21swapper/011:59:580
81620rcu_preempt7549-21munin-run08:14:441
81620rcu_preempt2235-21snmpd09:52:581
81620rcu_preempt0-21swapper/110:58:401
81620rcu_preempt0-21swapper/109:46:121
81620rcu_preempt0-21swapper/109:15:081
81620rcu_preempt0-21swapper/109:15:081
81610rcu_preempt0-21swapper/111:52:541
81610rcu_preempt0-21swapper/111:36:091
81610rcu_preempt0-21swapper/107:09:061
81610rcu_preempt0-21swapper/009:47:120
81600rcu_preempt31404-21ssh09:40:221
81600rcu_preempt0-21swapper/110:53:411
81600rcu_preempt0-21swapper/110:07:271
81600rcu_preempt0-21swapper/107:40:111
81600rcu_preempt0-21swapper/012:35:060
81600rcu_preempt0-21swapper/009:23:370
81600rcu_preempt0-21swapper/009:23:370
81600rcu_preempt0-21swapper/007:10:050
81590rcu_preempt7730-21ssh09:55:271
81590rcu_preempt6682-21grep11:49:430
81590rcu_preempt2118-21if_wlan007:25:020
81590rcu_preempt17197-21ssh10:13:271
81590rcu_preempt0-21swapper/112:21:301
81590rcu_preempt0-21swapper/112:11:001
81590rcu_preempt0-21swapper/110:47:031
81590rcu_preempt0-21swapper/110:47:031
81590rcu_preempt0-21swapper/109:32:391
81590rcu_preempt0-21swapper/109:24:581
81590rcu_preempt0-21swapper/108:24:561
81590rcu_preempt0-21swapper/011:15:090
81590rcu_preempt0-21swapper/010:34:210
81590rcu_preempt0-21swapper/009:34:550
81580rcu_preempt28008-21df11:29:581
81580rcu_preempt27561-21ssh11:29:291
81580rcu_preempt26096-21munin-run10:29:430
81580rcu_preempt20779-21ssh12:14:560
81580rcu_preempt20779-21ssh12:14:560
81580rcu_preempt12640-21diskmemload11:37:100
81580rcu_preempt0-21swapper/112:03:341
81580rcu_preempt0-21swapper/111:44:591
81580rcu_preempt0-21swapper/111:10:001
81580rcu_preempt0-21swapper/110:00:121
81580rcu_preempt0-21swapper/109:24:001
81580rcu_preempt0-21swapper/109:24:001
81580rcu_preempt0-21swapper/107:55:051
81580rcu_preempt0-21swapper/012:09:520
81580rcu_preempt0-21swapper/010:07:480
90050570irq/17-ehci_hcd2922-21kworker/1:007:37:031
90050570irq/17-ehci_hcd2922-21kworker/1:007:37:031
81570rcu_preempt6264-21sshd08:08:571
81570rcu_preempt4613-21cut07:49:441
81570rcu_preempt23787-21ssh11:21:250
81570rcu_preempt22724-21ssh10:23:121
81570rcu_preempt15210-21ssh11:05:570
81570rcu_preempt14318-21ssh09:11:031
81570rcu_preempt12640-21diskmemload10:51:140
81570rcu_preempt12640-21diskmemload10:38:170
81570rcu_preempt0-21swapper/112:35:421
81570rcu_preempt0-21swapper/112:15:001
81570rcu_preempt0-21swapper/112:15:001
81570rcu_preempt0-21swapper/111:40:181
81570rcu_preempt0-21swapper/111:02:121
81570rcu_preempt0-21swapper/012:26:340
81570rcu_preempt0-21swapper/011:43:120
81570rcu_preempt0-21swapper/011:02:160
81570rcu_preempt0-21swapper/010:15:070
81570rcu_preempt0-21swapper/009:16:570
81570rcu_preempt0-21swapper/009:16:570
81560rcu_preempt23113-21ssh09:26:190
81560rcu_preempt16861-21ssh10:12:270
81560rcu_preempt12640-21diskmemload11:25:550
81560rcu_preempt0-21swapper/108:34:141
81560rcu_preempt0-21swapper/108:24:101
81560rcu_preempt0-21swapper/107:25:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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