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2026-08-17 - 04:19
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack7slot2.osadl.org (updated Mon Aug 17, 2026 00:44:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35121679910095,4cyclictest3528906-21kworker/u4:0+events_unbound20:25:511
3512167999789,6cyclictest3514665-21kworker/u4:11+events_unbound19:40:441
3512167999689,5cyclictest3541700-21kworker/u4:1+events_unbound21:06:001
3512167999587,6cyclictest3530189-21kworker/u4:4+events_unbound20:30:521
3512167998881,5cyclictest3514681-21kworker/u4:15+events_unbound20:20:511
3512167998670,11cyclictest3701814-21kworker/u4:6+xprtiod00:10:091
3512167998171,8cyclictest3652757-21kworker/u4:1+events_unbound23:16:251
3512166997758,14cyclictest53-21kswapd000:05:110
351216799721,55cyclictest3584225-21ssh21:55:301
3512166997162,6cyclictest3661867-21kworker/u4:0+events_unbound23:31:290
3512166996562,2cyclictest3539134-21kworker/u4:9+events_unbound21:56:110
3512166996560,3cyclictest3626212-21kworker/u4:11+events_unbound23:06:250
3512167996450,5cyclictest3723727-21kworker/u4:8+events_unbound00:35:041
3512167996450,5cyclictest3723727-21kworker/u4:8+events_unbound00:35:041
3512166996459,3cyclictest3550404-21kworker/u4:6+events_unbound21:46:060
3512166996435,22cyclictest3532950-21apt-get20:30:130
3512166996418,9cyclictest3722312-21ntpq00:30:280
3512166996418,9cyclictest3593212-21ntpq22:05:330
3512167996356,5cyclictest3518694-21kworker/u4:14+events_unbound19:35:021
3512166996247,12cyclictest3619561-21fschecks_count22:35:200
3512166996124,9cyclictest3717887-21ntpq00:25:270
3512166996122,11cyclictest3678074-21ntpq23:40:340
3512166996054,4cyclictest3539133-21kworker/u4:6+events_unbound21:00:570
3512166996052,4cyclictest0-21swapper/019:30:110
3512166996040,16cyclictest3682529-21ssh23:45:350
3512166995947,8cyclictest3637451-21fschecks_count22:55:220
3512166995941,16cyclictest3516960-21ps19:25:400
3512166995940,15cyclictest3579892-21ntpq21:50:360
3512167995848,7cyclictest271ktimers/123:12:021
3512166995841,12cyclictest3633431-21ntpq22:50:310
3512166995838,16cyclictest3530984-21ntpq20:20:270
3512166995838,14cyclictest3543350-21apt-get21:10:170
3512166995838,14cyclictest3543350-21apt-get21:10:170
3512166995817,25cyclictest3728016-21ssh00:36:400
3512166995817,25cyclictest3728016-21ssh00:36:400
3512167995745,8cyclictest3528895-21systemd20:10:461
3512166995747,7cyclictest3715338-21kworker/u4:1+events_unbound00:23:430
3512166995746,7cyclictest0-21swapper/022:20:430
3512166995740,13cyclictest3672767-21apt-get23:35:170
3512166995739,12cyclictest3704173-21ssh00:10:220
3512166995739,12cyclictest3518886-21apt-get19:35:100
3512166995736,16cyclictest3528398-21ntpq20:10:270
3512166995731,9cyclictest3668075-21sed23:30:020
3512166995730,9cyclictest3628945-21ntpq22:45:310
3512166995729,24cyclictest1073-21snmpd22:15:360
3512166995717,8cyclictest3570062-21apt-get21:40:110
3512167995649,5cyclictest3503385-21kworker/u4:3+events_unbound19:15:031
3512167995645,9cyclictest3713914-21timerwakeupswit00:20:421
3512166995648,6cyclictest3567203-21sshd21:36:040
3512166995648,6cyclictest3567203-21sshd21:36:040
3512166995643,8cyclictest3614781-21apt-get22:30:140
3512166995641,11cyclictest3536112-21ntpq20:40:290
3512166995639,14cyclictest3610330-21apt-get22:25:130
3512166995639,12cyclictest3552247-21apt-get21:20:120
3512166995634,6cyclictest3556733-21apt-get21:25:150
3512166995622,10cyclictest3597646-21ntpq22:10:300
3512166995621,10cyclictest3654933-21apt-get23:15:140
3512166995620,12cyclictest3651121-21nfs_client23:10:250
3512166995618,4cyclictest3561164-21apt-get21:30:130
3512166995617,9cyclictest3538634-21ntpq20:50:280
3512167995547,6cyclictest3571233-21timerwakeupswit21:40:381
3512167995541,7cyclictest3683772-21kworker/u4:5+events_unbound23:50:031
3512166995541,9cyclictest3525290-21apt-get20:00:130
3512166995541,10cyclictest3512914-21ntpq19:10:290
3512166995540,12cyclictest3548605-21ssh21:15:350
3512166995538,12cyclictest3526560-21apt-get20:05:120
3512166995538,12cyclictest3522012-21ntpq19:45:270
3512166995537,14cyclictest3623696-21apt-get22:40:100
3512166995533,18cyclictest3524608-21ntpq19:55:300
3512166995529,9cyclictest3645875-21sed23:05:020
3512167995447,5cyclictest3537860-21kworker/u4:11+events_unbound20:55:001
3512167995447,5cyclictest3509663-21kworker/u4:4+events_unbound19:10:041
3512166995446,6cyclictest3529659-21/usr/sbin/munin20:15:260
3512166995437,12cyclictest3531680-21apt-get20:25:130
3512166995434,14cyclictest3691321-21ssh23:55:310
3512166995422,9cyclictest3707979-21apt-get00:15:060
3512166995421,10cyclictest3515436-21ntpq19:20:260
3512166995420,11cyclictest3695839-21ntp_states00:00:360
3512166995420,11cyclictest3686095-21apt-get23:50:170
3512166995414,22cyclictest0-21swapper/022:00:250
3512167995347,4cyclictest3638284-21/usr/sbin/munin22:55:431
3512167995344,6cyclictest3659757-21fschecks_count23:20:181
3512166995341,8cyclictest0-21swapper/023:20:100
3512166995336,14cyclictest3542539-21ntpq21:05:320
3512166995335,14cyclictest3513589-21apt-get19:15:100
3512166995320,10cyclictest3534755-21ntpq20:35:240
3512166995319,10cyclictest3520817-21ntp_states19:40:330
3512167995245,5cyclictest3576897-21kworker/u4:11+events_unbound21:50:031
3512167995245,5cyclictest3537524-21sendmail_mailqu20:45:371
3512167995243,5cyclictest271ktimers/100:31:451
3512166995220,10cyclictest3539862-21ntpq20:55:260
3512167995144,5cyclictest3628653-21gltestperf22:45:211
3512167995144,4cyclictest0-21swapper/121:25:261
3512167995142,6cyclictest3551978-21sendmail21:20:011
3512167995141,6cyclictest0-21swapper/122:05:291
3512167995110,37cyclictest3664632-21sh23:25:311
3512166995136,10cyclictest3522721-21apt-get19:50:120
3512166995117,12cyclictest3537330-21ntpq20:45:260
3512167995043,5cyclictest3678519-21unixbench_singl23:40:411
3512167995042,5cyclictest3652757-21kworker/u4:1+events_unbound23:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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