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2026-06-15 - 12:39
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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 792 highest latencies:
System rackcslot3.osadl.org (updated Mon Jun 15, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt8584-1kworker/0:2H22:48:550
81810rcu_preempt6803-21cpuspeed19:49:081
81780rcu_preempt19-21ksoftirqd/123:07:481
81770rcu_preempt28125-21diskmemload23:50:041
81760rcu_preempt19-21ksoftirqd/122:40:361
81760rcu_preempt19-21ksoftirqd/122:13:401
81750rcu_preempt27643-21sh23:11:371
81750rcu_preempt0-21swapper/122:04:051
81740rcu_preempt12956-21rt-features23:44:201
81740rcu_preempt0-21swapper/023:27:320
81720rcu_preempt381-21sh23:21:351
81720rcu_preempt3000-21turbostat00:33:501
81720rcu_preempt0-21swapper/122:34:111
81720rcu_preempt0-21swapper/122:23:071
81720rcu_preempt0-21swapper/120:17:031
81720rcu_preempt0-21swapper/120:17:031
81710rcu_preempt23647-21mailstats00:04:220
81710rcu_preempt20158-21cpuspeed_turbos23:59:091
81710rcu_preempt0-21swapper/023:55:170
81710rcu_preempt0-21swapper/020:39:160
81700rcu_preempt32485-1kworker/1:1H21:22:331
81700rcu_preempt21893-21sh21:59:400
81700rcu_preempt0-21swapper/122:14:221
81690rcu_preempt5205-21sh00:32:120
81690rcu_preempt4252-21idleruntime-cro22:28:551
81690rcu_preempt28125-21diskmemload23:18:030
81690rcu_preempt19068-21sed20:34:221
81690rcu_preempt19-21ksoftirqd/123:55:341
81690rcu_preempt16508-21sh21:49:470
81680rcu_preempt3985-21sh21:28:210
81680rcu_preempt32253-21ntp_states19:19:170
81680rcu_preempt19-21ksoftirqd/123:42:031
81680rcu_preempt1315-21k10sensors19:24:191
81680rcu_preempt12265-21idleruntime-cro21:43:551
81680rcu_preempt10381-21munin-run20:03:541
81680rcu_preempt0-21swapper/121:15:031
81680rcu_preempt0-21swapper/019:09:070
81680rcu_preempt0-21swapper/000:20:140
89550670irq/17-ehci_hcd0-21swapper/021:21:340
81670rcu_preempt7525-21sh00:35:500
81670rcu_preempt0-21swapper/119:19:121
81670rcu_preempt0-21swapper/020:09:090
81660rcu_preempt4359-21wc21:29:091
81660rcu_preempt29559-21ssh21:14:350
81660rcu_preempt24479-21ssh23:05:000
81660rcu_preempt0-21swapper/120:04:091
81660rcu_preempt0-21swapper/022:54:250
81650rcu_preempt21812-21munin-run20:48:550
81640rcu_preempt7359-21needreboot23:34:150
81640rcu_preempt31073-21ssh23:19:080
81640rcu_preempt0-21swapper/022:19:340
81640rcu_preempt0-21swapper/020:34:180
81640rcu_preempt0-21swapper/020:29:200
81630rcu_preempt19-21ksoftirqd/122:44:041
81630rcu_preempt0-21swapper/022:24:090
81630rcu_preempt0-21swapper/000:42:020
89150620irq/17-ehci_hcd945-21usb-storage23:29:420
81620rcu_preempt10112-21fw_conntrack21:39:110
81620rcu_preempt0-21swapper/023:59:120
81620rcu_preempt0-21swapper/023:43:030
81620rcu_preempt0-21swapper/020:14:180
81620rcu_preempt0-21swapper/020:14:180
81620rcu_preempt0-21swapper/019:44:170
81610rcu_preempt5557-21ssh21:29:370
81610rcu_preempt0-21swapper/021:44:060
81610rcu_preempt0-21swapper/020:59:150
81610rcu_preempt0-21swapper/019:29:050
81600rcu_preempt0-21swapper/022:08:230
146650600irq/31-eth0-tx-0-21swapper/119:09:471
81590rcu_preempt29042-21ssh00:15:570
81590rcu_preempt20418-21latency_hist21:58:550
81590rcu_preempt19-21ksoftirqd/123:00:041
81590rcu_preempt1522-21munin-run19:28:550
81590rcu_preempt0-21swapper/120:59:191
81590rcu_preempt0-21swapper/023:02:510
81590rcu_preempt0-21swapper/022:33:260
81590rcu_preempt0-21swapper/022:15:040
81590rcu_preempt0-21swapper/019:34:190
81580rcu_preempt8521-21ssh23:36:461
81580rcu_preempt0-21swapper/023:45:500
81580rcu_preempt0-21swapper/023:10:200
81580rcu_preempt0-21swapper/022:10:400
81580rcu_preempt0-21swapper/020:24:090
81580rcu_preempt0-21swapper/000:28:050
81570rcu_preempt0-21swapper/022:39:550
81570rcu_preempt0-21swapper/021:35:150
81570rcu_preempt0-21swapper/020:02:280
30141995748cyclictest945-21usb-storage20:53:121
30141995748cyclictest945-21usb-storage20:33:071
81560rcu_preempt0-21swapper/022:50:060
81560rcu_preempt0-21swapper/021:12:160
81560rcu_preempt0-21swapper/019:54:020
30141995647cyclictest945-21usb-storage19:16:211
146650560irq/31-eth0-tx-28125-21diskmemload21:48:421
81550rcu_preempt19-21ksoftirqd/123:31:321
81550rcu_preempt0-21swapper/020:54:080
81550rcu_preempt0-21swapper/020:19:130
146450550irq/29-eth0-rx-15332-21entropy22:49:101
81540rcu_preempt8651-21ssh22:35:380
81540rcu_preempt19-21ksoftirqd/100:16:561
81540rcu_preempt0-21swapper/023:49:560
81540rcu_preempt0-21swapper/019:39:160
30141995445cyclictest945-21usb-storage19:56:401
81530rcu_preempt27287-21ssh00:13:060
81530rcu_preempt19-21ksoftirqd/120:09:191
81530rcu_preempt19-21ksoftirqd/100:11:541
30141995349cyclictest945-21usb-storage20:26:551
30141995348cyclictest945-21usb-storage20:40:441
30141995348cyclictest945-21usb-storage19:35:571
81520rcu_preempt6991-21df_inode19:49:100
81520rcu_preempt3490-21ssh21:26:341
81520rcu_preempt19-21ksoftirqd/121:49:271
81520rcu_preempt19-21ksoftirqd/121:34:351
30141995249cyclictest945-21usb-storage22:29:561
30141995249cyclictest945-21usb-storage20:43:591
30141995249cyclictest945-21usb-storage20:20:031
30141995249cyclictest945-21usb-storage19:44:371
30141995249cyclictest945-21usb-storage19:42:341
30141995249cyclictest945-21usb-storage19:29:381
30141995248cyclictest945-21usb-storage21:05:061
30141995248cyclictest945-21usb-storage20:55:411
30141995247cyclictest945-21usb-storage21:10:341
89950510irq/17-ehci_hcd945-21usb-storage00:24:151
81510rcu_preempt19-21ksoftirqd/123:14:081
81510rcu_preempt19-21ksoftirqd/100:23:141
81510rcu_preempt0-21swapper/020:04:170
81500rcu_preempt22211-21fw_conntrack20:49:090
81500rcu_preempt19-21ksoftirqd/100:06:251
146650500irq/31-eth0-tx-0-21swapper/122:02:071
146650500irq/31-eth0-tx-0-21swapper/121:56:471
81490rcu_preempt19-21ksoftirqd/100:40:451
146250470irq/28-eth0-rx-0-21swapper/019:15:010
146250440irq/28-eth0-rx-0-21swapper/123:25:141
146250430irq/28-eth0-rx-0-21swapper/100:35:561
146550410irq/30-eth0-tx-0-21swapper/122:54:031
81400rcu_preempt25735-21/usr/sbin/munin21:04:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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