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2026-04-19 - 04:08
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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 rackeslot8.osadl.org (updated Sun Apr 19, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
115188321230,3sleep1321rcuc/123:10:191
804957992824,1cyclictest0-21swapper/321:45:133
804957992724,1cyclictest0-21swapper/320:30:173
804957992623,1cyclictest0-21swapper/323:10:213
804957992522,1cyclictest0-21swapper/300:30:013
804957992522,1cyclictest0-21swapper/300:10:003
804957992421,1cyclictest0-21swapper/322:05:233
804957992219,1cyclictest0-21swapper/322:55:013
804957992216,3cyclictest1147492-21turbostat23:10:003
80495799221,16cyclictest909782-21taskset20:29:533
804957992118,1cyclictest0-21swapper/323:55:173
804957992118,1cyclictest0-21swapper/320:55:173
804957992017,1cyclictest0-21swapper/322:10:173
804957992017,1cyclictest0-21swapper/300:25:013
804957992017,1cyclictest0-21swapper/300:00:023
80495799201,14cyclictest839269-21taskset19:35:003
80495799201,14cyclictest1194436-21chrt23:40:123
80495799201,14cyclictest1139600-21taskset23:04:563
80495799201,14cyclictest1100923-21turbostat22:40:013
80495799201,14cyclictest1069899-21sleep22:20:003
94077821910,6sleep1940851-21cat20:50:201
80495799198,7cyclictest12085222sleep323:46:513
80495799198,7cyclictest12085222sleep323:46:503
804957991916,1cyclictest0-21swapper/323:20:013
804957991916,1cyclictest0-21swapper/323:15:203
804957991916,1cyclictest0-21swapper/320:05:013
80495799191,14cyclictest883529-21taskset20:05:273
80495799191,14cyclictest859281-21taskset19:50:153
80495799191,14cyclictest1255044-21taskset00:16:443
80495799191,14cyclictest1247505-21taskset00:12:323
80495799191,14cyclictest1171184-21chrt23:25:133
80495799191,13cyclictest811317-21taskset19:14:563
80495799190,14cyclictest1217316-21taskset23:54:553
80495799182,12cyclictest941971-21turbostat20:55:013
804957991816,1cyclictest0-21swapper/321:18:303
804957991815,1cyclictest0-21swapper/323:32:413
804957991815,1cyclictest0-21swapper/321:35:163
804957991815,1cyclictest0-21swapper/321:00:173
804957991814,1cyclictest0-21swapper/319:20:173
80495799181,14cyclictest1045407-21taskset22:01:213
80495799181,13cyclictest990785-21taskset21:25:413
80495799181,13cyclictest961161-21taskset21:08:573
80495799181,13cyclictest930336-21taskset20:45:153
80495799181,13cyclictest858142-21taskset19:46:353
80495799181,13cyclictest851892-21taskset19:43:063
80495799181,13cyclictest1114977-21taskset22:45:393
80495799181,13cyclictest1083883-21taskset22:25:353
80495799181,13cyclictest1029754-21taskset21:51:023
80495799181,13cyclictest1008163-21chrt21:40:123
80495799181,12cyclictest961504-21taskset21:10:023
7996802181,3sleep20-21swapper/219:05:182
80495799177,7cyclictest8196142sleep319:16:533
804957991714,1cyclictest0-21swapper/323:35:143
804957991714,1cyclictest0-21swapper/320:40:143
80495799171,13cyclictest999734-21taskset21:34:233
80495799171,13cyclictest922388-21taskset20:36:063
80495799171,13cyclictest903285-21taskset20:24:073
80495799171,13cyclictest1131867-21turbostat23:00:013
80495799171,13cyclictest1107537-21taskset22:41:353
80495799171,13cyclictest1076214-21taskset22:20:503
80495799171,12cyclictest896600-21taskset20:16:103
80495799171,12cyclictest845286-21taskset19:35:573
80495799170,13cyclictest867426-21taskset19:55:173
129998170,2rtkit-daemon0-21swapper/220:26:262
80495799167,6cyclictest8265692sleep319:25:113
804957991613,1cyclictest0-21swapper/320:10:183
80495799161,12cyclictest983084-21taskset21:20:483
80495799161,12cyclictest1279741-21taskset00:35:053
80495799161,12cyclictest1277780-21taskset00:30:283
80495799161,12cyclictest1085656-21taskset22:30:043
80495799161,11cyclictest1031394-21taskset21:55:083
12798082152,4sleep11279810-21apt-get00:35:121
8639232141,10sleep1863965-21ntpq19:50:231
12243572141,9sleep11224361-21ssh23:57:591
11296762140,10sleep21129726-21ntpq22:55:222
11157032141,3sleep11115707-21ssh22:47:511
9826652131,4sleep1982925-21grep21:20:261
129998130,8rtkit-daemon1145374-21ntpq23:05:220
9767122121,8sleep2976718-21cron21:20:002
9162632120,9sleep1916318-21munin-run20:35:011
8959402121,8sleep2222-21plymouthd20:15:212
7987142121,2sleep00-21swapper/019:05:040
129998120,8rtkit-daemon1286655-21ssh00:38:222
129998120,8rtkit-daemon1124529-21apt22:55:120
129998120,7rtkit-daemon876-21gmain19:44:472
129998120,7rtkit-daemon2195379-21ntpd20:30:222
129998120,4rtkit-daemon703-21mta-sts-daemon19:07:281
129998120,4rtkit-daemon222-21plymouthd21:13:491
11701452120,8sleep01170151-21ssh23:23:060
11227912120,9sleep11122797-21ssh22:50:561
9360312111,8sleep0936204-21gltestperf20:50:150
129998110,7rtkit-daemon902941-21/usr/sbin/munin20:20:252
129998110,6rtkit-daemon953927-21ntpq21:00:201
129998110,5rtkit-daemon739-21wpa_supplicant23:38:260
129998110,3rtkit-daemon222-21plymouthd20:07:092
12473032110,8sleep11247307-21ssh00:11:581
12390942116,2sleep10-21swapper/100:05:411
12082762110,8sleep21208280-21ssh23:46:012
12082762110,8sleep21208280-21ssh23:46:012
11542022111,7sleep2222-21plymouthd23:12:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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