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2026-08-28 - 11:43
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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 Fri Aug 28, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3671316992926,1cyclictest0-21swapper/319:40:173
3671316992825,1cyclictest0-21swapper/300:00:593
3671316992818,7cyclictest3912227-21chrt22:00:463
3671316992724,1cyclictest0-21swapper/322:40:053
3671316992724,1cyclictest0-21swapper/321:40:263
3671316992522,1cyclictest0-21swapper/321:35:213
3671316992421,1cyclictest0-21swapper/323:41:033
3671316992421,1cyclictest0-21swapper/320:25:263
3671316992421,1cyclictest0-21swapper/319:20:243
3671316992320,1cyclictest0-21swapper/323:20:233
3671316992320,1cyclictest0-21swapper/320:00:213
3671316992320,1cyclictest0-21swapper/300:20:273
3671316992219,1cyclictest0-21swapper/322:50:003
3671316992219,1cyclictest0-21swapper/320:20:203
3671316992219,1cyclictest0-21swapper/319:20:003
3671316992219,1cyclictest0-21swapper/300:25:233
3671316992118,1cyclictest0-21swapper/322:50:183
3671316992118,1cyclictest0-21swapper/321:55:183
3671316992118,1cyclictest0-21swapper/320:40:343
3671316992111,7cyclictest36993342sleep319:30:133
367131699211,16cyclictest4147231-21taskset00:30:423
3671316992110,8cyclictest39450942sleep322:25:013
39929082202,7sleep03993807-21cut22:55:170
3671316992017,1cyclictest0-21swapper/323:15:003
3671316992017,1cyclictest0-21swapper/321:00:253
3671316992017,1cyclictest0-21swapper/320:50:133
367131699192,13cyclictest3857787-21taskset21:27:183
3671316991916,1cyclictest0-21swapper/321:45:183
3671316991916,1cyclictest0-21swapper/321:10:203
3671316991916,1cyclictest0-21swapper/300:35:133
3671316991916,1cyclictest0-21swapper/300:20:003
3671316991914,3cyclictest4000253-21chrt23:00:123
367131699191,14cyclictest3929451-21sleep22:15:003
367131699191,14cyclictest3897205-21taskset21:52:523
367131699191,14cyclictest3865634-21taskset21:32:163
367131699191,14cyclictest3750071-21taskset20:06:373
367131699191,13cyclictest4054805-21taskset23:35:003
36731372181,14sleep13674821-21cut19:10:181
3671316991815,1cyclictest0-21swapper/322:40:003
3671316991815,1cyclictest0-21swapper/321:20:123
3671316991815,1cyclictest0-21swapper/320:20:023
3671316991815,1cyclictest0-21swapper/300:10:113
367131699181,13cyclictest4108503-21taskset00:06:443
367131699181,13cyclictest3953258-21chrt22:30:133
367131699181,13cyclictest3935334-21taskset22:15:273
367131699181,13cyclictest3914115-21taskset22:05:113
367131699181,13cyclictest3801707-21taskset20:49:183
367131699181,13cyclictest3756406-21taskset20:11:133
367131699181,13cyclictest3737231-21taskset19:57:023
367131699181,13cyclictest3724532-21taskset19:48:083
367131699181,13cyclictest3724532-21taskset19:48:083
367131699181,13cyclictest3677610-21taskset19:14:443
367131699180,12cyclictest3814750-21taskset21:00:003
367131699177,7cyclictest40089732sleep323:05:183
367131699177,7cyclictest40089732sleep323:05:183
367131699171,13cyclictest4092566-21taskset23:56:133
367131699171,13cyclictest4076749-21taskset23:45:353
367131699171,13cyclictest4061573-21taskset23:37:133
367131699171,13cyclictest4045157-21taskset23:25:273
367131699171,13cyclictest4027152-21taskset23:15:213
367131699171,13cyclictest3840881-21taskset21:15:243
367131699171,13cyclictest3821247-21taskset21:05:013
367131699171,13cyclictest3698980-21taskset19:29:243
367131699171,12cyclictest3992426-21taskset22:55:113
367131699171,12cyclictest3778404-21taskset20:30:173
367131699171,12cyclictest3710846-21chrt19:35:213
367131699170,13cyclictest3950657-21taskset22:25:253
38889322160,13sleep13888936-21ssh21:46:391
367131699161,12cyclictest4085125-21taskset23:52:083
367131699161,12cyclictest3788384-21taskset20:35:273
367131699161,11cyclictest3724933-21taskset19:50:043
41406992151,11sleep24140705-21ssh00:29:132
40554942151,10sleep24055655-21cut23:35:162
39630052156,6sleep03964623-21cut22:35:200
36710032150,2sleep30-21swapper/319:07:443
39748582141,10sleep13968585-21sendmail-msp22:40:311
37302142140,2sleep00-21swapper/019:50:220
41356272130,10sleep14137275-21cut00:25:191
41100372136,4sleep2431ktimers/200:10:132
39197282131,4sleep03919987-21tail22:05:290
38968392131,9sleep23896843-21ssh21:51:562
37745682131,4sleep13775002-21head20:25:191
41548002120,9sleep04149091-21/usr/sbin/munin00:35:280
40702152120,9sleep24070217-21ssh23:44:222
40349452120,2sleep10-21swapper/123:20:201
40077422120,9sleep14007849-21wc23:05:011
39926282120,9sleep23992726-21cut22:55:152
39846462120,3sleep1222-21plymouthd22:50:141
38881612121,8sleep03888361-21/usr/sbin/munin21:45:300
38145362120,9sleep23814748-21cat21:00:002
36704532121,7sleep03670589-21sed19:05:520
41252712110,8sleep14125277-21ssh00:19:541
41192022111,2sleep20-21swapper/200:15:182
38329852110,8sleep23833039-21ntpq21:10:242
37253982111,6sleep13726260-21irqrtprio19:50:151
36856432111,7sleep13680041-21/usr/sbin/munin19:15:271
41046942105,3sleep134-21ksoftirqd/100:05:181
41011582103,1sleep00-21swapper/000:03:050
40788552100,3sleep20-21swapper/223:50:162
40369762100,7sleep04037065-21smartctl23:20:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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