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2026-09-01 - 18:31
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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 Tue Sep 01, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950760irq/17-ehci_hcd171rcuc/109:55:121
81730rcu_preempt31828-21kworker/0:207:15:560
81730rcu_preempt30868-21if_eth110:20:490
81730rcu_preempt11879-21ps08:00:530
81720rcu_preempt9835-21sh10:42:450
81720rcu_preempt28429-21ssh12:22:000
81720rcu_preempt22189-21ssh10:04:260
81720rcu_preempt19797-21timerwakeupswit08:30:551
81720rcu_preempt13542-21rm11:53:251
89950710irq/17-ehci_hcd0-21swapper/111:15:481
81710rcu_preempt3227-21ssh10:30:411
81710rcu_preempt21589-21sh12:09:590
81710rcu_preempt0-21swapper/011:40:520
81700rcu_preempt22778-21ssh11:08:240
81700rcu_preempt0-21swapper/110:15:471
81700rcu_preempt0-21swapper/108:55:491
81700rcu_preempt0-21swapper/108:25:511
81700rcu_preempt0-21swapper/107:40:531
89950690irq/17-ehci_hcd945-21usb-storage08:50:481
81690rcu_preempt12230-21ssh10:47:190
81690rcu_preempt0-21swapper/112:04:431
81690rcu_preempt0-21swapper/012:01:130
81690rcu_preempt0-21swapper/009:36:180
81690rcu_preempt0-21swapper/009:29:550
81680rcu_preempt2884-21munin-run10:30:300
81680rcu_preempt0-21swapper/109:11:121
81680rcu_preempt0-21swapper/012:41:090
81680rcu_preempt0-21swapper/011:56:480
81680rcu_preempt0-21swapper/009:58:240
81670rcu_preempt12905-21memory09:45:501
81670rcu_preempt12905-21memory09:45:501
81670rcu_preempt0-21swapper/112:45:551
81670rcu_preempt0-21swapper/111:28:411
81670rcu_preempt0-21swapper/107:20:491
81670rcu_preempt0-21swapper/012:35:490
81660rcu_preempt29966-21munin-run09:15:280
81660rcu_preempt24463-21ssh12:15:421
81660rcu_preempt0-21swapper/109:06:591
81660rcu_preempt0-21swapper/107:15:571
81650rcu_preempt5549-21munin-run10:35:300
81650rcu_preempt13898-21forks08:10:451
81650rcu_preempt0-21swapper/112:45:281
81640rcu_preempt31223-21diskmemload09:38:301
81640rcu_preempt31220-21latency_hist09:20:291
81640rcu_preempt21118-21cron08:40:291
81640rcu_preempt18720-21ssh09:56:331
81640rcu_preempt17656-21sshd10:57:501
81640rcu_preempt0-21swapper/012:12:330
81640rcu_preempt0-21swapper/007:48:130
81630rcu_preempt7530-21ssh10:38:261
81630rcu_preempt25723-21ssh10:10:501
81630rcu_preempt25235-21ssh12:15:530
81630rcu_preempt0-21swapper/111:05:191
81630rcu_preempt0-21swapper/007:35:490
81620rcu_preempt8071-21ssh11:42:281
81620rcu_preempt443-21wc12:30:531
81620rcu_preempt22214-21ssh10:04:331
81620rcu_preempt0-21swapper/112:10:431
81620rcu_preempt0-21swapper/111:35:011
81620rcu_preempt0-21swapper/111:10:521
81620rcu_preempt0-21swapper/110:45:501
81620rcu_preempt0-21swapper/110:05:451
81620rcu_preempt0-21swapper/109:27:271
81620rcu_preempt0-21swapper/009:30:470
81620rcu_preempt0-21swapper/007:20:480
81610rcu_preempt991-21ssh11:29:400
81610rcu_preempt4361-21awk07:30:540
81610rcu_preempt31905-21ssh10:22:171
81610rcu_preempt28712-21cpuspeed_turbos11:20:441
81610rcu_preempt0-21swapper/111:06:041
81610rcu_preempt0-21swapper/110:43:471
81610rcu_preempt0-21swapper/109:31:441
81610rcu_preempt0-21swapper/011:35:440
81610rcu_preempt0-21swapper/010:54:260
81600rcu_preempt4126-21ssh12:38:471
81600rcu_preempt405-21ssh10:25:381
81600rcu_preempt31695-21ssh12:30:021
81600rcu_preempt0-21swapper/110:50:501
81600rcu_preempt0-21swapper/109:42:511
81600rcu_preempt0-21swapper/108:20:571
81600rcu_preempt0-21swapper/011:34:010
81600rcu_preempt0-21swapper/011:16:480
81600rcu_preempt0-21swapper/008:35:550
81590rcu_preempt5543-21ssh11:37:271
81590rcu_preempt20616-21ssh11:04:530
81590rcu_preempt11432-21ssh09:43:150
81590rcu_preempt0-21swapper/112:05:531
81590rcu_preempt0-21swapper/111:55:561
81590rcu_preempt0-21swapper/107:58:461
81590rcu_preempt0-21swapper/012:26:150
81590rcu_preempt0-21swapper/011:50:330
81590rcu_preempt0-21swapper/011:10:550
81590rcu_preempt0-21swapper/008:55:530
81580rcu_preempt30142-21ssh10:20:150
81580rcu_preempt24327-21latency08:50:490
81580rcu_preempt11010-21diskmemload11:48:341
81580rcu_preempt0-21swapper/108:44:541
81580rcu_preempt0-21swapper/012:45:560
81580rcu_preempt0-21swapper/009:22:070
81580rcu_preempt0-21swapper/009:00:520
81580rcu_preempt0-21swapper/008:22:550
81570rcu_preempt7556-21ssh10:38:320
81570rcu_preempt28225-21rm12:21:081
81570rcu_preempt14482-21ssh09:49:450
81570rcu_preempt14482-21ssh09:49:450
81570rcu_preempt13088-21ntp_states08:05:501
81570rcu_preempt0-21swapper/107:45:501
81570rcu_preempt0-21swapper/107:25:291
81570rcu_preempt0-21swapper/010:55:480
81560rcu_preempt31223-21diskmemload11:20:540
81560rcu_preempt0-21swapper/010:10:460
81560rcu_preempt0-21swapper/010:07:250
81560rcu_preempt0-21swapper/009:54:400
81560rcu_preempt0-21swapper/008:45:290
81550rcu_preempt8860-21fw_forwarded_lo07:50:451
81550rcu_preempt14458-21ps08:10:530
81550rcu_preempt0-21swapper/109:18:091
81550rcu_preempt0-21swapper/108:02:441
81550rcu_preempt0-21swapper/011:47:150
81550rcu_preempt0-21swapper/008:08:510
81550rcu_preempt0-21swapper/007:25:560
81540rcu_preempt28280-21ntpq09:05:510
81540rcu_preempt0-21swapper/109:00:501
81540rcu_preempt0-21swapper/108:49:411
81540rcu_preempt0-21swapper/012:32:310
89950530irq/17-ehci_hcd945-21usb-storage08:32:440
81530rcu_preempt0-21swapper/108:17:371
81530rcu_preempt0-21swapper/009:15:570
81530rcu_preempt0-21swapper/008:25:510
81520rcu_preempt10561-21ntpq07:55:520
81520rcu_preempt0-21swapper/008:17:410
81510rcu_preempt21827-21memory08:40:500
795994845cyclictest945-21usb-storage07:35:461
794994011cyclictest4639-21kworker/0:107:53:440
89950370irq/17-ehci_hcd945-21usb-storage07:30:471
1599370migration/06873-21/usr/sbin/munin07:40:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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