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2026-05-04 - 08:08
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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 Mon May 04, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
389828321340,3sleep03898269-21ssh23:10:150
3552817993532,1cyclictest0-21swapper/323:10:133
3552817992825,1cyclictest0-21swapper/322:10:113
3552817992724,1cyclictest0-21swapper/300:40:003
3552817992522,1cyclictest0-21swapper/319:30:183
3552817992522,1cyclictest0-21swapper/319:30:183
3552817992421,1cyclictest0-21swapper/322:10:013
3552817992421,1cyclictest0-21swapper/319:55:163
3552817992219,1cyclictest0-21swapper/323:25:263
3552817992219,1cyclictest0-21swapper/322:20:013
355281799221,16cyclictest3567762-21turbostat19:20:013
3552817992119,1cyclictest0-21swapper/320:00:023
3552817992119,1cyclictest0-21swapper/319:45:183
3552817992118,1cyclictest0-21swapper/322:23:583
3552817992118,1cyclictest0-21swapper/320:40:013
3552817992118,1cyclictest0-21swapper/300:20:123
355281799211,14cyclictest3580604-21turbostat19:30:013
37695552200,1sleep00-21swapper/021:45:200
3552817992018,1cyclictest0-21swapper/322:40:023
3552817992017,1cyclictest0-21swapper/321:20:043
3552817992016,1cyclictest0-21swapper/321:10:283
355281799201,15cyclictest3677876-21taskset20:45:173
39624342195,6sleep10-21swapper/123:50:181
3552817991916,1cyclictest0-21swapper/323:50:193
3552817991916,1cyclictest0-21swapper/322:45:093
3552817991916,1cyclictest0-21swapper/320:10:193
355281799191,15cyclictest3746949-21chrt21:30:553
355281799191,14cyclictest3912614-21taskset23:17:353
355281799191,14cyclictest3794743-21taskset22:02:463
355281799191,14cyclictest3708224-21taskset21:05:253
355281799191,14cyclictest3644709-21taskset20:18:003
355281799191,13cyclictest3975079-21taskset23:56:083
355281799191,13cyclictest3827269-21chrt22:25:113
355281799191,13cyclictest3677020-21taskset20:44:563
355281799191,13cyclictest3553008-21chrt19:10:123
355281799182,12cyclictest3874385-21taskset22:55:103
3552817991816,1cyclictest0-21swapper/319:20:013
3552817991815,1cyclictest0-21swapper/323:20:043
3552817991815,1cyclictest0-21swapper/322:50:163
3552817991814,1cyclictest0-21swapper/323:00:183
355281799181,13cyclictest4024164-21taskset00:30:123
355281799181,13cyclictest3999495-21taskset00:13:283
355281799181,13cyclictest3984873-21taskset00:05:143
355281799181,13cyclictest3982675-21taskset00:00:293
355281799181,13cyclictest3960506-21taskset23:49:393
355281799181,13cyclictest3951382-21taskset23:41:093
355281799181,13cyclictest3896372-21taskset23:06:333
355281799181,13cyclictest3844020-21taskset22:35:183
355281799181,13cyclictest3840453-21taskset22:30:243
355281799181,13cyclictest3763304-21taskset21:42:333
355281799181,13cyclictest3739391-21taskset21:26:463
355281799181,13cyclictest3723656-21taskset21:16:323
355281799181,13cyclictest3696161-21taskset20:59:203
355281799181,13cyclictest3689772-21taskset20:54:233
355281799181,13cyclictest3651659-21taskset20:25:123
355281799181,13cyclictest3651309-21taskset20:24:563
355281799180,14cyclictest3778612-21chrt21:51:233
355281799172,12cyclictest3612292-21taskset19:50:283
3552817991715,1cyclictest0-21swapper/319:40:023
3552817991714,1cyclictest0-21swapper/323:35:153
3552817991714,1cyclictest0-21swapper/319:35:173
355281799171,13cyclictest4021711-21taskset00:25:243
355281799171,12cyclictest4006369-21taskset00:15:423
355281799171,12cyclictest3935545-21taskset23:30:303
355281799171,12cyclictest3780217-21taskset21:55:083
355281799171,12cyclictest3748701-21taskset21:35:123
129998170,1rtkit-daemon0-21swapper/222:45:292
37305792161,11sleep03730618-21ntp_states21:20:220
36264542167,6sleep13627348-21cut20:05:151
355281799161,12cyclictest3764525-21taskset21:45:103
355281799161,12cyclictest3663831-21taskset20:30:573
355281799160,12cyclictest3698333-21taskset21:00:173
355281799160,12cyclictest3631564-21taskset20:05:253
36965042152,4sleep13696536-21apt-get21:00:111
36962112151,3sleep2314-21systemd-journal21:00:002
38954042141,10sleep13895452-21ntpq23:05:231
376360521410,2sleep00-21swapper/021:43:200
37031122141,9sleep23703225-21fschecks_time21:05:172
36953052140,5sleep13695352-21ntp_states20:55:221
39164322131,4sleep03918229-21grep23:20:180
129998130,9rtkit-daemon3908244-21grep23:15:190
129998130,9rtkit-daemon3810510-21ssh22:13:020
129998130,9rtkit-daemon3756314-21ssh21:39:582
39614962120,8sleep03962433-21/usr/sbin/munin23:50:170
39452982121,8sleep03945459-21/usr/sbin/munin23:40:140
39142792121,4sleep23915216-21irqstats23:20:162
38883332121,7sleep23770750-21kworker/u16:3+rpciod23:00:562
38748872120,4sleep03875817-21irqstats22:55:160
38207962120,9sleep03822260-21cut22:20:170
38169202120,9sleep13816995-21ps22:15:241
37875722120,3sleep23787578-21ssh21:59:342
37327562121,8sleep13732998-21latency_hist21:25:001
37319712121,3sleep23709105-21diskmemload21:22:492
36834062121,7sleep03683430-21munin-plugin-st20:50:000
36262642120,10sleep00-21swapper/020:05:140
35684802120,9sleep03569320-21cut19:20:160
129998120,8rtkit-daemon3573266-21ntpq19:20:212
39838712110,8sleep23983878-21sh00:03:422
38835472110,8sleep03884505-21cut23:00:170
38661262110,3sleep1222-21plymouthd22:49:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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