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2026-05-23 - 15:23
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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 Sat May 23, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3905621993027,1cyclictest0-21swapper/321:00:003
3905621993027,1cyclictest0-21swapper/321:00:003
3905621993027,1cyclictest0-21swapper/319:50:013
3905621992623,1cyclictest0-21swapper/300:00:003
390562199261,21cyclictest4062366-21turbostat21:10:003
390562199261,21cyclictest4023662-21turbostat20:40:003
3905621992421,1cyclictest0-21swapper/323:40:003
3905621992420,2cyclictest130884-21turbostat23:55:003
390562199232,17cyclictest170873-21chrt00:20:123
3905621992320,1cyclictest0-21swapper/323:20:003
3905621992320,1cyclictest0-21swapper/321:45:203
3905621992320,1cyclictest0-21swapper/300:37:073
390562199230,19cyclictest3965620-21turbostat19:55:003
3905621992118,1cyclictest0-21swapper/323:30:143
3905621992118,1cyclictest0-21swapper/322:05:173
390562199202,14cyclictest3233-21taskset22:32:123
3905621992017,1cyclictest0-21swapper/321:35:173
3905621992017,1cyclictest0-21swapper/320:25:253
390562199201,14cyclictest4125925-21chrt21:50:133
390562199201,14cyclictest3933755-21taskset19:30:013
390562199201,14cyclictest3933755-21taskset19:30:013
3905621992010,7cyclictest662092sleep323:11:023
390562199192,13cyclictest4055590-21taskset21:01:223
3905621991916,1cyclictest0-21swapper/320:24:063
3905621991916,1cyclictest0-21swapper/300:15:193
390562199191,14cyclictest4117624-21taskset21:44:563
390562199191,14cyclictest3946333-21sleep19:40:003
390562199191,14cyclictest108014-21taskset23:40:143
390562199191,13cyclictest4036462-21taskset20:49:553
390562199182,12cyclictest4141702-21taskset22:00:113
3905621991815,1cyclictest0-21swapper/323:25:163
3905621991815,1cyclictest0-21swapper/322:55:003
3905621991815,1cyclictest0-21swapper/322:55:003
3905621991815,1cyclictest0-21swapper/320:00:263
390562199181,14cyclictest4017016-21taskset20:32:553
390562199181,13cyclictest50985-21taskset23:02:303
390562199181,13cyclictest4188879-21taskset22:26:293
390562199181,13cyclictest4100529-21taskset21:31:123
390562199181,13cyclictest4093736-21taskset21:29:173
390562199181,13cyclictest3965894-21taskset19:55:113
390562199181,13cyclictest3920897-21taskset19:20:033
390562199181,13cyclictest3919669-21taskset19:15:233
390562199181,13cyclictest193887-21taskset00:34:203
390562199181,13cyclictest18741-21taskset22:41:023
390562199181,13cyclictest18741-21taskset22:41:013
390562199181,13cyclictest139625-21taskset00:00:153
390562199181,12cyclictest4070523-21taskset21:15:023
390562199181,12cyclictest147014-21taskset00:05:003
411051621712,2sleep10-21swapper/121:40:141
3905621991715,1cyclictest0-21swapper/323:20:063
3905621991714,1cyclictest0-21swapper/320:50:343
390562199171,13cyclictest4181549-21taskset22:23:213
390562199171,13cyclictest4139964-21taskset21:56:103
390562199171,13cyclictest4084830-21taskset21:21:263
390562199171,13cyclictest4062661-21taskset21:10:083
390562199171,13cyclictest3984644-21taskset20:06:173
390562199171,13cyclictest3952569-21taskset19:43:003
390562199171,13cyclictest3933331-21taskset19:27:493
390562199171,13cyclictest27993-21taskset22:49:313
390562199171,13cyclictest27993-21taskset22:49:313
390562199171,12cyclictest4172057-21chrt22:15:233
390562199171,12cyclictest4164811-21taskset22:10:503
390562199171,12cyclictest4029424-21taskset20:40:253
390562199171,12cyclictest3991042-21taskset20:11:103
390562199171,12cyclictest3905839-21chrt19:10:123
390562199171,12cyclictest184629-21taskset00:25:463
390562199171,12cyclictest184629-21taskset00:25:453
390562199171,12cyclictest154923-21taskset00:10:013
1423782170,8sleep2431ktimers/200:00:182
390562199161,12cyclictest52578-21taskset23:05:143
390562199161,12cyclictest10528-21taskset22:35:273
390562199161,11cyclictest3997536-21taskset20:16:043
390562199161,11cyclictest36401-21taskset22:55:083
390562199160,12cyclictest115463-21taskset23:45:083
39054472160,3sleep30-21swapper/319:09:253
39012532151,3sleep13903036-21kthreadcore19:05:191
41738092140,11sleep24173815-21ssh22:18:472
39338032141,10sleep10-21swapper/119:30:121
39338032141,10sleep10-21swapper/119:30:121
39045312140,8sleep03904568-21ntpq19:05:210
35362141,10sleep13542-21ssh22:32:581
997522131,4sleep099911-21df_inode23:35:120
997022131,4sleep299739-21apt-get23:35:092
800932131,9sleep081060-21/usr/sbin/munin23:20:200
509982131,9sleep151004-21ssh23:02:341
429642131,9sleep142970-21ssh22:57:151
40550482130,5sleep20-21swapper/221:00:252
1617302130,10sleep2161735-21sh00:12:382
1464572130,9sleep1146465-21ssh00:04:071
1127522132,8sleep0112845-21ntpq23:40:200
41606342123,7sleep24162384-21kthreadcore22:10:192
41003352120,3sleep24100341-21ssh21:30:442
40623102121,2sleep20-21swapper/221:09:322
39337702121,8sleep03933802-21/usr/sbin/munin19:30:110
39337702121,8sleep03933802-21/usr/sbin/munin19:30:110
679932111,7sleep068030-21apt-get23:15:110
623622111,7sleep064027-21kthreadcore23:10:170
41891252110,8sleep24189131-21ssh22:27:132
41721832110,8sleep14166718-21/usr/sbin/munin22:15:261
40777172110,8sleep14077723-21ssh21:18:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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