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2025-11-27 - 08:43
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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
Characteristics of the 100 highest latencies:
System rack6slot0.osadl.org (updated Thu Nov 27, 2025 01:01:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3608799263259,2cyclictest0-21swapper/2800:25:4721
3608799263259,2cyclictest0-21swapper/2800:25:4621
36086992405,117cyclictest0-21swapper/2721:35:1820
36086992405,117cyclictest0-21swapper/2721:35:1720
36086992405,117cyclictest0-21swapper/2721:35:1720
3608799222212,4cyclictest40921-21NetworkChangeNo00:35:2121
3608799222212,4cyclictest40921-21NetworkChangeNo00:35:2021
3608799222212,4cyclictest40921-21NetworkChangeNo00:35:2021
36067992135,205cyclictest28196-21NetworkChangeNo21:10:183
36067992135,205cyclictest28196-21NetworkChangeNo21:10:183
3608799211205,2cyclictest0-21swapper/2800:05:1921
3608799211205,2cyclictest0-21swapper/2800:05:1821
360859921014,187cyclictest15984-21CPU19
360859921014,187cyclictest15984-21CPU19
3605699209189,11cyclictest0-21swapper/122:50:311
3605699209189,11cyclictest0-21swapper/122:50:311
3605699208188,18cyclictest0-21swapper/123:56:071
3605699208188,18cyclictest0-21swapper/123:56:071
3605699208188,18cyclictest0-21swapper/123:56:071
3605699205202,2cyclictest0-21swapper/123:24:591
3605699205202,2cyclictest0-21swapper/123:24:591
3605699205202,2cyclictest0-21swapper/123:24:591
36086992011,193cyclictest9189-21inotify_reader21:10:1820
36086992011,193cyclictest9189-21inotify_reader21:10:1820
3609599197191,3cyclictest0-21swapper/3523:30:1729
3609599197191,3cyclictest0-21swapper/3523:30:1629
3608799196180,4cyclictest33061-21TaskSchedulerSi19:50:1921
3608799196180,4cyclictest33061-21TaskSchedulerSi19:50:1821
3608799196180,4cyclictest33061-21TaskSchedulerSi19:50:1821
3605699196192,2cyclictest0-21swapper/122:34:461
3605699196192,2cyclictest0-21swapper/122:34:461
3609699195188,5cyclictest0-21swapper/3623:05:1030
3609699195188,5cyclictest0-21swapper/3623:05:1030
361039919434,142cyclictest37156-21inotify_reader00:25:2133
361039919434,142cyclictest37156-21inotify_reader00:25:2033
3608799194185,7cyclictest28925-21sshd22:16:3821
3608799194185,7cyclictest28925-21sshd22:16:3821
3608799194185,7cyclictest28925-21sshd22:16:3821
3608899193166,9cyclictest0-21swapper/2923:10:1922
3608899193166,9cyclictest0-21swapper/2923:10:1922
3608799193185,6cyclictest0-21swapper/2822:40:1421
3608799193185,6cyclictest0-21swapper/2822:40:1421
360599919376,93cyclictest0-21swapper/422:48:1534
360599919376,93cyclictest0-21swapper/422:48:1534
360599919376,93cyclictest0-21swapper/422:48:1534
3608799192177,6cyclictest0-21swapper/2822:49:4621
3608799192177,6cyclictest0-21swapper/2822:49:4521
3608799192177,6cyclictest0-21swapper/2822:49:4521
360579919217,45cyclictest22636-21TaskSchedulerSi20:50:1812
360579919217,45cyclictest22636-21TaskSchedulerSi20:50:1712
3608899191165,23cyclictest0-21swapper/2921:27:0922
3608899191165,23cyclictest0-21swapper/2921:27:0922
3608299191175,8cyclictest171rcu_preempt23:04:0116
3608299191175,8cyclictest171rcu_preempt23:04:0116
3608299191175,8cyclictest171rcu_preempt23:04:0116
3605699191138,42cyclictest15985-21CPU1
3605699191138,42cyclictest15985-21CPU1
360949919078,71cyclictest28344-21inotify_reader21:40:1728
360949919078,71cyclictest28344-21inotify_reader21:40:1728
36089991900,4cyclictest27574-21inotify_reader22:35:2024
36089991900,4cyclictest27574-21inotify_reader22:35:2024
36089991900,4cyclictest27574-21inotify_reader22:35:1924
3608299190126,51cyclictest4912-21CPU16
3608299190126,51cyclictest4912-21CPU16
3608299190126,51cyclictest4912-21CPU16
3605699190184,4cyclictest0-21swapper/122:41:401
3605699190184,4cyclictest0-21swapper/122:41:401
3605699190178,10cyclictest0-21swapper/123:11:501
3605699190178,10cyclictest0-21swapper/123:11:501
36067991893,2cyclictest0-21swapper/1119:35:193
36067991893,2cyclictest0-21swapper/1119:35:193
360899918823,125cyclictest4906-21CPU24
360899918823,125cyclictest4906-21CPU24
360869918852,91cyclictest1529-21systemd-logind23:00:1820
360869918852,91cyclictest1529-21systemd-logind23:00:1820
360869918852,91cyclictest1529-21systemd-logind23:00:1820
36100991871,8cyclictest0-21swapper/3823:20:1932
36100991871,8cyclictest0-21swapper/3823:20:1832
36100991871,8cyclictest0-21swapper/3823:20:1832
3607099187174,7cyclictest171rcu_preempt21:05:436
3607099187174,7cyclictest171rcu_preempt21:05:436
3607099187174,7cyclictest171rcu_preempt21:05:436
3605699187177,8cyclictest0-21swapper/123:45:581
3605699187177,8cyclictest0-21swapper/123:45:571
36094991861,10cyclictest0-21swapper/3423:10:1928
36094991861,10cyclictest0-21swapper/3423:10:1928
3608799186182,2cyclictest2451rcuc/2822:08:4521
3608799186182,2cyclictest2451rcuc/2822:08:4421
3608799186179,5cyclictest0-21swapper/2823:25:2821
3608799186179,5cyclictest0-21swapper/2823:25:2821
3608799186179,5cyclictest0-21swapper/2823:25:2821
3608799186176,6cyclictest4912-21CPU21
3608799186176,6cyclictest4912-21CPU21
3608299186159,15cyclictest0-21swapper/2322:45:5716
3608299186159,15cyclictest0-21swapper/2322:45:5616
3608299186159,15cyclictest0-21swapper/2322:45:5616
3609699185171,7cyclictest0-21swapper/3621:20:2830
3609699185171,7cyclictest0-21swapper/3621:20:2830
3609699185171,7cyclictest0-21swapper/3621:20:2830
3608799185176,6cyclictest15978-21CPU21
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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