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2025-12-08 - 22:56
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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 Dec 08, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89650910irq/17-ehci_hcd21757-21/usr/sbin/munin07:04:551
81810rcu_preempt3904-21ps09:35:060
89250720irq/17-ehci_hcd22179-21ssh10:09:180
81710rcu_preempt7286-21sh09:40:421
81690rcu_preempt18297-21ssh10:59:591
81690rcu_preempt0-21swapper/011:18:260
81690rcu_preempt0-21swapper/009:17:070
81680rcu_preempt0-21swapper/112:01:491
81680rcu_preempt0-21swapper/011:40:470
81670rcu_preempt29211-21cron07:34:411
81670rcu_preempt0-21swapper/111:33:221
81670rcu_preempt0-21swapper/110:57:191
81670rcu_preempt0-21swapper/109:16:521
81670rcu_preempt0-21swapper/108:35:021
81670rcu_preempt0-21swapper/009:29:560
81660rcu_preempt0-21swapper/011:28:220
81660rcu_preempt0-21swapper/010:45:010
81650rcu_preempt20315-1kworker/1:1H09:46:331
81650rcu_preempt2027-21apt-get07:54:550
81650rcu_preempt19104-21ssh11:59:540
81650rcu_preempt18387-21munin-run08:59:421
81650rcu_preempt0-21swapper/112:05:561
81650rcu_preempt0-21swapper/111:56:221
81650rcu_preempt0-21swapper/009:40:440
81640rcu_preempt27979-21gzip09:20:060
81640rcu_preempt17922-21apt10:59:410
81640rcu_preempt0-21swapper/111:48:011
81640rcu_preempt0-21swapper/110:18:081
81640rcu_preempt0-21swapper/109:27:321
81640rcu_preempt0-21swapper/108:24:581
81640rcu_preempt0-21swapper/107:53:281
81630rcu_preempt3-21ksoftirqd/012:37:450
81630rcu_preempt16262-21http_loadtime08:50:001
81630rcu_preempt1058-21processes09:30:061
81630rcu_preempt0-21swapper/108:30:041
81630rcu_preempt0-21swapper/012:15:210
81630rcu_preempt0-21swapper/010:17:560
81630rcu_preempt0-21swapper/009:49:400
81620rcu_preempt6811-21ssh12:35:461
81620rcu_preempt3-21ksoftirqd/012:27:150
81620rcu_preempt0-21swapper/108:45:011
81620rcu_preempt0-21swapper/011:09:540
81610rcu_preempt5781-21memory11:35:020
81610rcu_preempt4264-21df10:34:571
81610rcu_preempt0-21swapper/111:23:201
81610rcu_preempt0-21swapper/110:50:061
81610rcu_preempt0-21swapper/110:46:181
90050600irq/17-ehci_hcd0-21swapper/009:57:580
81600rcu_preempt6247-21cat11:35:081
81600rcu_preempt24845-21ssh11:10:171
81600rcu_preempt17498-21ssh10:00:000
81600rcu_preempt15520-21processes08:45:060
81600rcu_preempt0-21swapper/111:43:451
81600rcu_preempt0-21swapper/111:28:351
81600rcu_preempt0-21swapper/110:29:101
81600rcu_preempt0-21swapper/110:03:051
81600rcu_preempt0-21swapper/109:00:041
81600rcu_preempt0-21swapper/108:20:051
81600rcu_preempt0-21swapper/011:55:480
81600rcu_preempt0-21swapper/007:09:040
81590rcu_preempt3-21ksoftirqd/011:52:120
81590rcu_preempt0-21swapper/112:17:161
81590rcu_preempt0-21swapper/111:05:511
81590rcu_preempt0-21swapper/110:19:561
81590rcu_preempt0-21swapper/110:10:061
81590rcu_preempt0-21swapper/109:52:321
81590rcu_preempt0-21swapper/108:10:031
81590rcu_preempt0-21swapper/012:21:180
81590rcu_preempt0-21swapper/011:33:280
81590rcu_preempt0-21swapper/007:30:070
81580rcu_preempt8546-21ssh10:41:401
81580rcu_preempt3222-21ssh12:30:001
81580rcu_preempt31431-21ssh11:23:290
81580rcu_preempt27758-21ssh11:15:341
81580rcu_preempt23889-21ssh12:08:110
81580rcu_preempt22764-21ssh09:11:291
81580rcu_preempt22044-21ssh11:05:230
81580rcu_preempt13950-21cat11:50:001
81580rcu_preempt0-21swapper/112:20:201
81580rcu_preempt0-21swapper/109:56:161
81580rcu_preempt0-21swapper/109:20:011
81580rcu_preempt0-21swapper/012:31:510
81580rcu_preempt0-21swapper/009:50:050
81580rcu_preempt0-21swapper/008:59:580
81580rcu_preempt0-21swapper/008:20:000
81580rcu_preempt0-21swapper/008:14:550
81570rcu_preempt5687-21munin-run08:09:410
81570rcu_preempt0-21swapper/110:05:071
81570rcu_preempt0-21swapper/109:37:331
81570rcu_preempt0-21swapper/109:08:031
81570rcu_preempt0-21swapper/108:14:581
81570rcu_preempt0-21swapper/107:24:471
81570rcu_preempt0-21swapper/011:48:090
81570rcu_preempt0-21swapper/009:10:210
81560rcu_preempt31743-21ssh09:27:420
81560rcu_preempt2779-21ssh10:31:131
81560rcu_preempt0-21swapper/112:26:461
81560rcu_preempt0-21swapper/107:48:201
81560rcu_preempt0-21swapper/107:35:201
81560rcu_preempt0-21swapper/107:16:181
81560rcu_preempt0-21swapper/010:41:350
81560rcu_preempt0-21swapper/010:35:160
81560rcu_preempt0-21swapper/007:59:580
81550rcu_preempt0-21swapper/108:05:201
81550rcu_preempt0-21swapper/107:39:591
81550rcu_preempt0-21swapper/107:10:081
81550rcu_preempt0-21swapper/010:30:230
81550rcu_preempt0-21swapper/010:29:300
81550rcu_preempt0-21swapper/010:23:570
81540rcu_preempt0-21swapper/107:20:081
81540rcu_preempt0-21swapper/012:14:240
81540rcu_preempt0-21swapper/011:02:420
81540rcu_preempt0-21swapper/010:50:350
81540rcu_preempt0-21swapper/007:52:310
81530rcu_preempt24174-21ssh10:11:370
81530rcu_preempt0-21swapper/108:41:121
81530rcu_preempt0-21swapper/107:54:421
81530rcu_preempt0-21swapper/007:20:050
81520rcu_preempt13717-21diskstats08:39:560
81520rcu_preempt12036-21sshd08:30:410
22916995249cyclictest946-21usb-storage09:05:000
81510rcu_preempt0-21swapper/007:25:000
81500rcu_preempt0-21swapper/008:10:020
81500rcu_preempt0-21swapper/007:49:390
81480rcu_preempt16252-21fw_forwarded_lo08:49:590
81480rcu_preempt13275-21users08:35:060
81470rcu_preempt24778-21df_abs12:09:551
22916994543cyclictest946-21usb-storage08:56:360
81420rcu_preempt23312-21fw_forwarded_lo07:09:590
81420rcu_preempt10349-21ntp_states08:25:010
81400rcu_preempt4084-21ps08:00:041
81350rcu_preempt31361-21ntp_states07:40:040
81340rcu_preempt30081-21ntp_states07:35:040
22916993129cyclictest946-21usb-storage07:15:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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