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2026-04-13 - 17:59
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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
Characteristics of the 100 highest latencies:
System rackcslot4.osadl.org (updated Mon Apr 13, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35335072264186,29sleep10-21swapper/107:08:561
35317102258185,58sleep00-21swapper/007:05:030
37292092690,1chrt3729205-21systemd-run12:35:001
36383622660,4sleep13582458-21diskmemload10:25:191
179699660,4rtkit-daemon1795-21rtkit-daemon09:40:050
3533739996316,11cyclictest3582458-21diskmemload11:05:000
36227432610,5sleep13622581-21python310:05:021
3533739995718,9cyclictest3725901-21apt-get12:30:130
3533739995716,10cyclictest3638880-21sshd10:25:230
3533739995714,10cyclictest3615552-21cat09:55:010
3533739995713,11cyclictest3618993-21date10:00:000
3533739995620,11cyclictest3714909-21python312:15:020
3533739995620,11cyclictest3714909-21python312:15:010
3533739995616,12cyclictest3582457-21apt-get09:10:220
3533739995614,11cyclictest3715378-21apt-config12:15:020
3533739995521,10cyclictest3622580-21python310:05:020
3533739995518,11cyclictest3629979-21python310:15:020
3533739995513,11cyclictest3704587-21cat12:00:010
3533739995416,11cyclictest3599380-21apt-get09:31:220
3533739995414,9cyclictest3578586-21systemd-run09:00:010
3533739995414,9cyclictest1-21systemd11:55:000
3533739995414,11cyclictest3574266-21python308:50:010
3533739995414,10cyclictest3624288-21mailstats10:05:260
3533739995413,12cyclictest3690499-21cat11:40:010
3533739995413,11cyclictest3627848-21mailstats10:10:240
3533739995412,10cyclictest3612124-21latency_hist09:50:010
179699540,4rtkit-daemon1795-21rtkit-daemon12:27:530
179699540,4rtkit-daemon1795-21rtkit-daemon07:50:320
3533739995316,8cyclictest1-21systemd10:35:010
3533739995315,9cyclictest1-21systemd11:30:010
3533739995315,10cyclictest3648176-21sh10:40:010
3533739995314,9cyclictest1-21systemd11:25:010
3533739995314,11cyclictest788-21systemd-logind07:15:000
3533739995313,10cyclictest3651771-21latency_hist10:45:000
3533739995217,13cyclictest3731833-21rm12:37:580
3533739995216,9cyclictest3708247-21apt-get12:05:110
3533739995215,9cyclictest763-21dbus-daemon11:10:010
3533739995213,13cyclictest3562558-21cat08:20:010
3533739995213,13cyclictest3535928-21ls07:15:020
3533739995212,11cyclictest3637649-21latency_hist10:25:010
3533739995126,6cyclictest3604534-21python309:40:010
3533739995114,12cyclictest3669292-21apt-get11:10:130
3533739995114,10cyclictest3655156-21cat10:50:000
3533739995114,10cyclictest3582458-21diskmemload11:15:200
3533739995114,10cyclictest3540266-21wc07:25:000
3533739995113,11cyclictest3576705-21latency_hist08:55:010
3533739995113,11cyclictest3558624-21find08:10:030
3533739995113,10cyclictest3590318-21cron09:20:000
3533739995112,13cyclictest3694190-21awk11:45:130
3533739995112,13cyclictest3542184-21date07:30:010
3533739995112,12cyclictest3544103-21cat07:35:000
3533739995112,11cyclictest3556385-21cat08:05:000
179699510,4rtkit-daemon1795-21rtkit-daemon11:15:441
179699510,4rtkit-daemon1795-21rtkit-daemon10:50:001
3533739995015,8cyclictest3658865-21apt-get10:55:140
3533739995015,14cyclictest3691428-21ntp_states11:40:230
3533739995015,10cyclictest3656087-21sh10:50:210
3533739995014,8cyclictest1-21systemd12:05:000
3533739995014,11cyclictest1-21systemd07:50:010
3533739995014,10cyclictest3558200-21chrt08:10:000
3533739995013,10cyclictest3546080-21sh07:40:000
3533739995012,12cyclictest3564539-21latency_hist08:25:010
179699500,5rtkit-daemon1795-21rtkit-daemon12:36:521
179699500,4rtkit-daemon1795-21rtkit-daemon12:11:151
179699500,4rtkit-daemon1795-21rtkit-daemon12:11:151
179699500,4rtkit-daemon1795-21rtkit-daemon10:17:391
179699500,4rtkit-daemon1795-21rtkit-daemon09:22:311
179699500,4rtkit-daemon1795-21rtkit-daemon09:19:331
179699500,4rtkit-daemon1795-21rtkit-daemon07:25:151
179699500,3rtkit-daemon0-21swapper/010:40:061
3533739994915,11cyclictest3565435-21ntpq08:25:220
3533739994915,10cyclictest3582490-21python309:10:000
3533739994914,14cyclictest3570375-21ls08:40:000
3533739994914,12cyclictest3683366-21apt-get11:30:130
3533739994914,11cyclictest3590623-21apt-get09:20:140
3533739994913,12cyclictest3567432-21cut08:30:240
3533739994913,12cyclictest3567432-21cut08:30:240
3533739994913,10cyclictest3595182-21grep09:25:260
3533739994912,10cyclictest1-21systemd09:05:000
179699490,4rtkit-daemon1795-21rtkit-daemon12:05:511
179699490,4rtkit-daemon1795-21rtkit-daemon11:37:321
179699490,4rtkit-daemon1795-21rtkit-daemon10:56:411
179699490,4rtkit-daemon1795-21rtkit-daemon07:21:341
179699490,4rtkit-daemon1795-21rtkit-daemon07:11:381
3533739994813,11cyclictest3570503-21latency_hist08:40:010
3533739994813,11cyclictest3548131-21date07:45:020
3533739994813,10cyclictest3719970-21grep12:20:240
179699480,4rtkit-daemon1795-21rtkit-daemon11:25:011
179699480,4rtkit-daemon1795-21rtkit-daemon11:09:451
179699480,4rtkit-daemon1795-21rtkit-daemon08:46:061
179699480,4rtkit-daemon1795-21rtkit-daemon08:39:511
179699480,4rtkit-daemon1795-21rtkit-daemon07:40:151
37065172470,3sleep10-21swapper/112:01:311
3533739994714,11cyclictest3554396-21latency_hist08:00:010
179699470,4rtkit-daemon1795-21rtkit-daemon11:42:331
179699470,4rtkit-daemon1795-21rtkit-daemon11:30:151
179699470,4rtkit-daemon1795-21rtkit-daemon08:41:371
179699470,4rtkit-daemon1795-21rtkit-daemon07:46:181
179699470,4rtkit-daemon1795-21rtkit-daemon07:18:001
179699460,4rtkit-daemon1795-21rtkit-daemon10:51:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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