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2026-07-21 - 05:54
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot2.osadl.org (updated Tue Jul 21, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
110602204188,11sleep10-21swapper/119:09:001
110542196180,12sleep00-21swapper/019:08:550
108922188171,12sleep30-21swapper/319:06:493
108102174157,13sleep20-21swapper/219:05:482
239902490,0sleep00-21swapper/021:34:310
61432480,0sleep20-21swapper/221:05:192
224022470,0sleep20-21swapper/222:21:452
224022470,0sleep20-21swapper/222:21:452
21532440,0sleep30-21swapper/300:05:313
146472410,0sleep10-21swapper/121:13:221
87412400,0sleep10-21swapper/122:47:381
37432340,0sleep20-21swapper/221:56:032
241412130,0sleep10-21swapper/123:11:281
326232110,0sleep20-21swapper/223:15:332
219372110,0sleep10-21swapper/123:26:451
25192100,0sleep30-21swapper/300:39:223
1674290,0sleep10-21swapper/123:33:141
113709991,7cyclictest0-21swapper/322:50:123
113399993,3cyclictest21607-21sendmail00:00:000
113399981,3cyclictest2179-21munin-run20:59:590
12693250,0sleep1211ktimersoftd/122:16:561
113709955,0cyclictest14066-21kworker/3:022:22:003
113709955,0cyclictest14066-21kworker/3:022:21:593
113709950,5cyclictest0-21swapper/323:43:303
113709950,5cyclictest0-21swapper/323:00:143
113709950,5cyclictest0-21swapper/321:10:023
113709950,5cyclictest0-21swapper/300:01:073
113609955,0cyclictest0-21swapper/223:22:022
113609950,5cyclictest7879-21apt-get22:15:022
113609950,5cyclictest0-21swapper/223:30:282
113609950,5cyclictest0-21swapper/221:17:382
113609950,5cyclictest0-21swapper/200:33:372
113609950,5cyclictest0-21swapper/200:25:452
113529951,2cyclictest0-21swapper/121:20:131
113529950,5cyclictest0-21swapper/121:28:081
113529950,5cyclictest0-21swapper/121:18:571
113399950,5cyclictest0-21swapper/023:25:120
113399950,5cyclictest0-21swapper/021:51:050
113399950,4cyclictest0-21swapper/019:40:120
2407240,0sleep20-21swapper/222:28:182
11923240,0sleep10-21swapper/120:10:201
113709944,0cyclictest14066-21kworker/3:021:03:373
113709944,0cyclictest14066-21kworker/3:020:52:253
113709944,0cyclictest14066-21kworker/3:020:30:023
113709944,0cyclictest14066-21kworker/3:020:18:513
113709944,0cyclictest14066-21kworker/3:020:07:383
113709944,0cyclictest14066-21kworker/3:019:56:273
113709944,0cyclictest0-21swapper/323:21:063
113709944,0cyclictest0-21swapper/319:50:153
113709944,0cyclictest0-21swapper/319:30:193
113709943,1cyclictest7037-21ssh23:35:193
113709943,1cyclictest3661-21df21:40:153
113709943,1cyclictest26267-21grep22:40:153
113709942,2cyclictest0-21swapper/323:06:533
113709941,2cyclictest0-21swapper/320:10:013
113709941,2cyclictest0-21swapper/319:35:123
113709941,1cyclictest0-21swapper/320:45:113
113709940,4cyclictest7127-21diskmemload23:30:123
113709940,4cyclictest7127-21diskmemload23:10:573
113709940,4cyclictest2841-21ssh23:17:153
113709940,4cyclictest24878-21apt-get23:45:133
113709940,4cyclictest1772-21users20:55:223
113709940,4cyclictest16584-21memory21:30:183
113709940,4cyclictest0-21swapper/323:50:153
113709940,4cyclictest0-21swapper/323:25:323
113709940,4cyclictest0-21swapper/322:55:133
113709940,4cyclictest0-21swapper/322:38:303
113709940,4cyclictest0-21swapper/322:33:343
113709940,4cyclictest0-21swapper/322:15:023
113709940,4cyclictest0-21swapper/322:05:113
113709940,4cyclictest0-21swapper/322:00:123
113709940,4cyclictest0-21swapper/321:55:053
113709940,4cyclictest0-21swapper/321:50:133
113709940,4cyclictest0-21swapper/321:47:303
113709940,4cyclictest0-21swapper/321:35:063
113709940,4cyclictest0-21swapper/320:35:133
113709940,4cyclictest0-21swapper/319:20:113
113709940,4cyclictest0-21swapper/319:10:103
113709940,4cyclictest0-21swapper/300:33:043
113709940,4cyclictest0-21swapper/300:21:033
113709940,4cyclictest0-21swapper/300:15:123
113709940,3cyclictest7272-21sed21:10:013
113709940,3cyclictest6731-21ssh00:25:043
113709940,3cyclictest5968-21diskstats21:25:143
113709940,3cyclictest31668-21memory22:10:183
113709940,3cyclictest27475-21date21:20:013
113709940,1cyclictest11101-21ntp_states00:10:183
113709940,0cyclictest0-21swapper/300:00:003
113609944,0cyclictest0-21swapper/222:01:082
113609944,0cyclictest0-21swapper/200:01:282
113609943,1cyclictest25773-21sed23:45:152
113609943,1cyclictest25561-21ssh22:40:132
113609941,3cyclictest0-21swapper/222:45:202
113609941,2cyclictest0-21swapper/220:55:122
113609941,2cyclictest0-21swapper/220:05:122
113609940,4cyclictest470-21/usr/sbin/munin23:00:212
113609940,4cyclictest20300-21apt-get23:10:122
113609940,4cyclictest18861-21memory23:25:172
113609940,4cyclictest15569-21rm22:50:382
113609940,4cyclictest0-21swapper/223:40:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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