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2026-03-09 - 22:54
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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 highest latencies:
System rackcslot3.osadl.org (updated Mon Mar 09, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811050rcu_preempt28407-21ssh10:04:041
81970rcu_preempt19-21ksoftirqd/111:24:281
81750rcu_preempt0-21swapper/010:24:110
81740rcu_preempt0-21swapper/011:57:360
81720rcu_preempt13321-21apt-get12:39:060
81720rcu_preempt0-21swapper/009:34:040
89850710irq/17-ehci_hcd19-21ksoftirqd/108:44:291
81710rcu_preempt0-21swapper/009:21:100
81710rcu_preempt0-21swapper/007:34:160
81700rcu_preempt1262-21diskmemload11:37:260
81700rcu_preempt0-21swapper/012:09:580
81700rcu_preempt0-21swapper/010:34:200
81690rcu_preempt32484-21ssh11:12:181
81690rcu_preempt0-21swapper/111:54:191
81690rcu_preempt0-21swapper/109:29:141
81690rcu_preempt0-21swapper/107:09:151
81680rcu_preempt30186-21sed08:59:071
81680rcu_preempt0-21swapper/112:31:311
81680rcu_preempt0-21swapper/108:54:111
81680rcu_preempt0-21swapper/012:31:060
81680rcu_preempt0-21swapper/008:24:140
81670rcu_preempt0-21swapper/112:36:381
81670rcu_preempt0-21swapper/009:52:490
81660rcu_preempt8566-21ssh09:25:090
81660rcu_preempt6339-21run-parts12:24:191
81660rcu_preempt22684-21idleruntime08:29:090
81660rcu_preempt19366-21ssh09:46:020
81660rcu_preempt14855-21ssh10:39:081
81660rcu_preempt12387-21ssh12:36:090
81660rcu_preempt0-21swapper/111:34:151
81650rcu_preempt0-21swapper/012:24:560
81640rcu_preempt6618-21ssh09:22:471
81640rcu_preempt32679-21cpuspeed_turbos09:09:060
81640rcu_preempt19247-21needreboot08:14:151
81640rcu_preempt0-21swapper/112:05:571
81640rcu_preempt0-21swapper/110:17:021
81640rcu_preempt0-21swapper/011:14:150
81640rcu_preempt0-21swapper/010:59:050
81630rcu_preempt15382-21sh09:39:080
81630rcu_preempt12371-21/usr/sbin/munin09:34:141
81630rcu_preempt0-21swapper/110:35:161
81620rcu_preempt19172-21ssh10:47:301
81620rcu_preempt0-21swapper/111:07:121
81620rcu_preempt0-21swapper/110:59:381
81620rcu_preempt0-21swapper/109:46:301
81620rcu_preempt0-21swapper/012:14:190
81620rcu_preempt0-21swapper/011:09:100
81620rcu_preempt0-21swapper/007:09:140
89850610irq/17-ehci_hcd945-21usb-storage09:14:191
89850610irq/17-ehci_hcd945-21usb-storage09:14:191
81610rcu_preempt8361-21cron07:33:520
81610rcu_preempt31961-21ssh12:12:571
81610rcu_preempt18436-21ssh10:44:390
81610rcu_preempt18282-21switchtime08:09:160
81610rcu_preempt0-21swapper/111:59:081
81610rcu_preempt0-21swapper/111:22:031
81610rcu_preempt0-21swapper/110:25:421
81610rcu_preempt0-21swapper/110:02:131
81610rcu_preempt0-21swapper/109:49:141
81610rcu_preempt0-21swapper/109:39:071
81610rcu_preempt0-21swapper/108:49:111
81610rcu_preempt0-21swapper/107:44:111
81610rcu_preempt0-21swapper/009:59:140
81610rcu_preempt0-21swapper/009:04:160
147850610irq/30-eth0-tx-171rcuc/112:22:051
81600rcu_preempt24013-21ps09:54:170
81600rcu_preempt23784-21ssh10:55:091
81600rcu_preempt10053-21ssh11:30:111
81600rcu_preempt0-21swapper/111:42:491
81600rcu_preempt0-21swapper/110:51:101
81600rcu_preempt0-21swapper/110:19:451
81600rcu_preempt0-21swapper/110:19:451
81600rcu_preempt0-21swapper/108:04:551
81590rcu_preempt7052-21timerwakeupswit11:24:190
81590rcu_preempt4619-21ssh11:19:540
81590rcu_preempt4150-21ssh09:18:500
81590rcu_preempt4150-21ssh09:18:500
81590rcu_preempt3590-21df07:14:061
81590rcu_preempt2988-21ssh11:18:221
81590rcu_preempt23454-21ssh09:54:081
81590rcu_preempt17861-21ssh11:44:421
81590rcu_preempt15560-21ssh12:43:181
81590rcu_preempt11056-21ssh10:31:321
81590rcu_preempt0-21swapper/112:18:491
81590rcu_preempt0-21swapper/107:34:101
81590rcu_preempt0-21swapper/107:23:531
81590rcu_preempt0-21swapper/011:59:110
81590rcu_preempt0-21swapper/010:53:100
81590rcu_preempt0-21swapper/010:39:110
81590rcu_preempt0-21swapper/010:30:580
81590rcu_preempt0-21swapper/007:59:000
81580rcu_preempt7116-21munin-run07:28:520
81580rcu_preempt4571-21munin-run07:18:520
81580rcu_preempt24087-21ssh10:56:110
81580rcu_preempt10850-21users07:39:191
81580rcu_preempt0-21swapper/111:51:021
81580rcu_preempt0-21swapper/110:10:161
81580rcu_preempt0-21swapper/107:59:131
81580rcu_preempt0-21swapper/107:56:011
81580rcu_preempt0-21swapper/107:29:161
81580rcu_preempt0-21swapper/107:19:131
81580rcu_preempt0-21swapper/011:51:250
81580rcu_preempt0-21swapper/011:45:380
81580rcu_preempt0-21swapper/010:15:270
81580rcu_preempt0-21swapper/009:29:140
81580rcu_preempt0-21swapper/008:39:100
81570rcu_preempt8425-21ssh09:24:401
81570rcu_preempt4922-21ssh12:22:550
81570rcu_preempt28527-21ssh12:04:390
81570rcu_preempt0-21swapper/109:06:321
81570rcu_preempt0-21swapper/108:39:291
81570rcu_preempt0-21swapper/108:33:471
81570rcu_preempt0-21swapper/108:18:561
81570rcu_preempt0-21swapper/010:19:060
81570rcu_preempt0-21swapper/010:19:060
81570rcu_preempt0-21swapper/010:06:080
81570rcu_preempt0-21swapper/008:18:020
81560rcu_preempt29616-21ssh11:06:470
81560rcu_preempt11056-21ssh11:33:510
81560rcu_preempt0-21swapper/108:09:091
81560rcu_preempt0-21swapper/010:09:580
81560rcu_preempt0-21swapper/008:05:190
81560rcu_preempt0-21swapper/007:44:210
81560rcu_preempt0-21swapper/007:39:230
81550rcu_preempt22229-21users08:24:181
81550rcu_preempt15645-21ssh11:41:310
81550rcu_preempt14478-21k10sensors07:54:160
81550rcu_preempt0-21swapper/109:09:221
81550rcu_preempt0-21swapper/107:50:541
81550rcu_preempt0-21swapper/008:19:040
81550rcu_preempt0-21swapper/007:19:100
147850550irq/30-eth0-tx-41ktimersoftd/008:44:080
81540rcu_preempt0-21swapper/008:35:250
81540rcu_preempt0-21swapper/007:50:000
81520rcu_preempt0-21swapper/008:56:050
81510rcu_preempt28588-21users08:49:180
81500rcu_preempt0-21swapper/009:02:300
81480rcu_preempt23802-21df08:34:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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