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2026-06-30 - 09:04
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rackcslot4.osadl.org (updated Tue Jun 30, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24653622281219,48sleep10-21swapper/119:08:341
24654412270188,28sleep00-21swapper/019:09:240
179699540,5rtkit-daemon1795-21rtkit-daemon00:25:121
25889112510,4sleep10-21swapper/122:53:041
179699500,3rtkit-daemon1795-21rtkit-daemon23:42:271
179699500,3rtkit-daemon1795-21rtkit-daemon22:05:531
179699500,3rtkit-daemon1795-21rtkit-daemon21:42:091
179699490,3rtkit-daemon1795-21rtkit-daemon20:04:561
179699470,3rtkit-daemon1795-21rtkit-daemon20:44:021
246562799462,11cyclictest2593413-21grep23:00:000
246562799454,9cyclictest1-21systemd20:25:010
246562799454,12cyclictest2603959-21wc23:15:010
246562799452,12cyclictest2582813-21cat22:45:000
246562799452,12cyclictest2470140-21grep19:20:010
246562799452,10cyclictest2498312-21grep20:30:010
179699450,3rtkit-daemon1795-21rtkit-daemon00:31:021
25174132440,3sleep10-21swapper/121:13:321
246562799443,12cyclictest2559074-21ntp_states22:10:220
246562799441,11cyclictest2611045-21date23:25:000
179699440,4rtkit-daemon1795-21rtkit-daemon20:54:361
179699440,3rtkit-daemon1795-21rtkit-daemon20:38:011
246562799435,9cyclictest1-21systemd19:55:010
246562799433,9cyclictest2467587-21wc19:15:010
246562799433,10cyclictest2550825-21munin-run22:00:010
246562799433,10cyclictest2490453-21unin-run20:10:000
246562799425,11cyclictest2639949-21apt-config00:05:010
246562799422,11cyclictest2543898-21grep21:50:000
246562799422,11cyclictest2475143-21mailstats19:30:240
246562799422,10cyclictest2596907-21date23:05:020
246562799420,12cyclictest2632581-21date23:55:000
246562799416,7cyclictest2525568-21apt-get21:25:140
246562799412,9cyclictest2514380-21latency_hist21:10:010
246562799412,10cyclictest2514287-21diskmemload21:35:140
246562799411,13cyclictest2573383-21grep22:30:230
246562799408,11cyclictest2514287-21diskmemload21:50:130
246562799406,12cyclictest2654385-21cnf-update-db00:25:030
246562799403,9cyclictest2514287-21diskmemload21:35:000
246562799403,11cyclictest2619248-21grep23:35:220
246562799403,10cyclictest2501392-21grep20:35:230
246562799402,10cyclictest2536648-21packagekitd21:40:040
246562799400,11cyclictest2500207-21latency_hist20:35:000
246562799393,14cyclictest2634058-21grep23:55:230
246562799393,10cyclictest2565098-21wc22:20:000
246562799393,10cyclictest2494393-21sed20:20:000
246562799392,9cyclictest2554568-21latency_hist22:05:010
246562799392,8cyclictest2514287-21diskmemload23:40:230
246562799392,10cyclictest2473975-21latency_hist19:30:000
246562799391,11cyclictest2600385-21latency_hist23:10:010
246562799391,11cyclictest2492473-21latency_hist20:15:010
179699390,3rtkit-daemon0-21swapper/122:46:150
246562799388,10cyclictest0-21swapper/023:32:130
246562799383,11cyclictest2650607-21date00:20:010
246562799382,9cyclictest2629220-21sed23:50:010
246562799382,9cyclictest2510441-21sed21:00:010
246562799382,11cyclictest2576885-21sendmail_mailqu22:35:230
246562799381,12cyclictest2572097-21sh22:30:010
246562799381,11cyclictest2604178-21apt-get23:15:160
246562799380,10cyclictest2646867-21latency_hist00:15:010
179699380,4rtkit-daemon0-21swapper/123:10:061
246562799375,11cyclictest2506102-21python320:50:020
246562799374,8cyclictest763-21dbus-daemon00:05:020
246562799373,9cyclictest2481902-21grep19:45:230
246562799373,9cyclictest2472068-21sed19:25:010
246562799372,8cyclictest2568667-21latency_hist22:25:000
246562799372,13cyclictest2555098-21grep22:05:170
246562799372,10cyclictest2480756-21sed19:45:010
246562799370,11cyclictest2612283-21tr23:25:240
246562799366,11cyclictest2478335-21python319:40:010
246562799366,10cyclictest2518411-21ssh21:15:140
246562799361,9cyclictest2587501-21tr22:50:260
246562799361,10cyclictest2518149-21latency_hist21:15:010
246562799354,9cyclictest2658071-21sh00:30:010
246562799354,10cyclictest2652190-21sh00:20:370
246562799353,13cyclictest2523278-21sed21:20:250
179699350,3rtkit-daemon1795-21rtkit-daemon21:38:081
179699350,3rtkit-daemon0-21swapper/123:06:271
246562799345,11cyclictest2506095-21python320:50:000
246562799343,10cyclictest2484874-21tr19:55:140
246562799342,10cyclictest2665073-21date00:40:010
246562799341,10cyclictest2504217-21date20:45:010
179699340,3rtkit-daemon0-21swapper/000:01:341
2465629993127,3cyclictest2543702-1kworker/1:0H21:55:051
246562799312,14cyclictest2488170-21seq20:01:540
179699310,3rtkit-daemon0-21swapper/021:07:321
179699310,2rtkit-daemon0-21swapper/020:10:001
2465629993025,3cyclictest24979962sleep120:27:291
179699300,3rtkit-daemon1795-21rtkit-daemon22:45:261
179699300,3rtkit-daemon0-21swapper/021:52:461
246562999293,9cyclictest26-21ksoftirqd/100:10:281
179699290,3rtkit-daemon1795-21rtkit-daemon23:33:401
179699290,3rtkit-daemon0-21swapper/022:34:041
179699290,3rtkit-daemon0-21swapper/022:29:551
246562999284,3cyclictest24849082cstates19:55:131
2465629992823,3cyclictest2561381-1kworker/1:1H22:15:211
246562999282,20cyclictest2565307-21apt-get22:20:121
246562799282,10cyclictest2510579-21/usr/sbin/munin21:00:140
179699280,3rtkit-daemon1795-21rtkit-daemon19:27:341
2465629992713,7cyclictest2632780-21apt-get23:55:111
246562999271,23cyclictest2653972-21python300:25:001
179699270,3rtkit-daemon1795-21rtkit-daemon22:41:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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