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2026-04-21 - 05:46
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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 376 highest latencies:
System rackcslot3.osadl.org (updated Tue Apr 21, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89850870irq/17-ehci_hcd945-21usb-storage23:43:161
81870rcu_preempt11071-21ssh22:59:021
81810rcu_preempt21612-21diskmemload23:35:191
81790rcu_preempt21612-21diskmemload00:22:241
81750rcu_preempt3471-21ssh22:44:361
81740rcu_preempt9822-21open_inodes20:26:111
81740rcu_preempt19-21ksoftirqd/100:14:531
81740rcu_preempt12135-21ssh23:01:051
81730rcu_preempt5716-21ssh23:51:060
81730rcu_preempt32436-21apt-get21:35:591
81730rcu_preempt31512-21ssh22:36:040
81730rcu_preempt21907-21df_abs00:26:021
81730rcu_preempt17800-21kworker/1:121:05:471
81730rcu_preempt10791-21if_wlan020:31:051
81710rcu_preempt26314-21ssh21:23:080
81710rcu_preempt19-21ksoftirqd/123:36:391
81710rcu_preempt0-21swapper/023:32:300
81710rcu_preempt0-21swapper/022:10:260
81700rcu_preempt31503-21sh23:38:000
81700rcu_preempt27657-21fw_forwarded_lo21:26:041
81700rcu_preempt16890-21sh00:12:000
81700rcu_preempt14579-21sh22:02:391
81700rcu_preempt0-21swapper/122:31:081
81700rcu_preempt0-21swapper/121:16:021
81700rcu_preempt0-21swapper/100:41:011
81700rcu_preempt0-21swapper/023:13:250
81700rcu_preempt0-21swapper/022:45:590
81690rcu_preempt6963-21ssh22:51:021
81690rcu_preempt4206-21sshd23:48:031
81690rcu_preempt0-21swapper/100:16:561
81690rcu_preempt0-21swapper/021:51:210
81680rcu_preempt29911-21ls21:31:011
81680rcu_preempt21612-21diskmemload21:22:281
81680rcu_preempt0-21swapper/123:52:401
81680rcu_preempt0-21swapper/122:21:101
81680rcu_preempt0-21swapper/022:11:560
81670rcu_preempt0-21swapper/123:10:301
81670rcu_preempt0-21swapper/000:17:590
81660rcu_preempt6450-21awk22:50:471
81660rcu_preempt3872-21munin-run20:05:471
81660rcu_preempt21506-21memory22:16:071
81660rcu_preempt20660-21kworker/1:019:11:091
81660rcu_preempt19-21ksoftirqd/100:32:231
81660rcu_preempt17690-21ssh22:09:241
89850650irq/17-ehci_hcd945-21usb-storage21:13:481
81650rcu_preempt29657-21ssh22:31:140
81650rcu_preempt2615-21/usr/sbin/munin20:00:471
81650rcu_preempt20883-21sshd23:17:021
81650rcu_preempt13558-21if_wlan022:01:070
81650rcu_preempt0-21swapper/123:21:061
81650rcu_preempt0-21swapper/120:51:081
81650rcu_preempt0-21swapper/120:36:101
81650rcu_preempt0-21swapper/120:19:241
81650rcu_preempt0-21swapper/023:07:410
81650rcu_preempt0-21swapper/000:01:050
81640rcu_preempt9101-21ssh23:56:431
81640rcu_preempt9059-21ssh21:51:361
81640rcu_preempt6920-21ssh21:48:111
81640rcu_preempt5027-21ssh21:45:311
81640rcu_preempt2784-21ssh21:40:580
81640rcu_preempt2311-21ssh23:45:340
81640rcu_preempt20337-21sshd21:10:021
81640rcu_preempt18461-21ssh23:12:401
81640rcu_preempt0-21swapper/122:36:571
81640rcu_preempt0-21swapper/120:06:051
81640rcu_preempt0-21swapper/119:16:011
81640rcu_preempt0-21swapper/100:36:501
81640rcu_preempt0-21swapper/100:07:431
81640rcu_preempt0-21swapper/022:28:500
89850630irq/17-ehci_hcd41ktimersoftd/019:13:290
81630rcu_preempt26271-21ssh23:27:401
81630rcu_preempt0-21swapper/122:11:181
81630rcu_preempt0-21swapper/121:56:061
81630rcu_preempt0-21swapper/120:11:061
81630rcu_preempt0-21swapper/119:50:591
81630rcu_preempt0-21swapper/119:41:101
81630rcu_preempt0-21swapper/119:31:121
81630rcu_preempt0-21swapper/019:50:560
81630rcu_preempt0-21swapper/000:45:260
81620rcu_preempt0-21swapper/122:26:081
81620rcu_preempt0-21swapper/120:56:001
81620rcu_preempt0-21swapper/120:21:131
81620rcu_preempt0-21swapper/119:23:181
81620rcu_preempt0-21swapper/020:06:000
81610rcu_preempt14265-21df20:46:001
81610rcu_preempt0-21swapper/119:37:011
81610rcu_preempt0-21swapper/022:57:250
81600rcu_preempt0-21swapper/119:25:471
81600rcu_preempt0-21swapper/023:59:470
81590rcu_preempt4596-21ssh23:49:260
81590rcu_preempt0-21swapper/100:03:051
81590rcu_preempt0-21swapper/021:05:580
81590rcu_preempt0-21swapper/020:30:490
81580rcu_preempt26064-21munin-run00:35:470
81580rcu_preempt24375-21ssh23:25:040
81580rcu_preempt22767-21ssh22:18:590
81580rcu_preempt0-21swapper/022:41:070
81580rcu_preempt0-21swapper/021:50:190
81580rcu_preempt0-21swapper/019:56:040
81570rcu_preempt29487-21ssh21:30:070
81570rcu_preempt0-21swapper/019:33:260
81570rcu_preempt0-21swapper/000:35:540
81570rcu_preempt0-21swapper/000:09:390
23630995747cyclictest945-21usb-storage21:20:050
81560rcu_preempt6010-21ntp_states20:11:100
81560rcu_preempt32274-21python19:46:131
81560rcu_preempt1373-21ssh21:36:510
81560rcu_preempt0-21swapper/023:05:340
81560rcu_preempt0-21swapper/022:55:020
81560rcu_preempt0-21swapper/020:02:010
81560rcu_preempt0-21swapper/019:23:010
81560rcu_preempt0-21swapper/000:21:580
81550rcu_preempt11070-21memory21:56:080
81550rcu_preempt0-21swapper/023:29:320
81550rcu_preempt0-21swapper/023:19:570
81550rcu_preempt0-21swapper/020:41:070
81550rcu_preempt0-21swapper/000:26:400
81540rcu_preempt0-21swapper/019:37:020
81530rcu_preempt0-21swapper/021:15:140
81530rcu_preempt0-21swapper/021:05:470
81530rcu_preempt0-21swapper/020:27:330
81530rcu_preempt0-21swapper/019:26:130
81520rcu_preempt0-21swapper/022:22:190
81520rcu_preempt0-21swapper/019:16:290
81510rcu_preempt13180-21if_can120:41:051
81510rcu_preempt0-21swapper/020:40:040
81510rcu_preempt0-21swapper/020:18:550
81500rcu_preempt30616-21ntp_states21:31:110
23630994844cyclictest945-21usb-storage20:23:020
23630994643cyclictest945-21usb-storage19:41:460
23630994642cyclictest945-21usb-storage20:56:130
81450rcu_preempt15648-21fw_conntrack20:51:030
23630994340cyclictest945-21usb-storage19:46:020
23630994137cyclictest945-21usb-storage20:47:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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