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2026-05-14 - 03:46
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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 May 14, 2026 01:02:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1719992630,250cyclictest0-21swapper/2823:25:1421
1719992630,250cyclictest0-21swapper/2823:25:1421
1719992620,230cyclictest0-21swapper/2822:28:4921
1719992620,230cyclictest0-21swapper/2822:28:4921
1719992601,252cyclictest0-21swapper/2800:30:1621
1719992601,252cyclictest0-21swapper/2800:30:1521
1719992601,252cyclictest0-21swapper/2800:30:1521
1719992531,241cyclictest1360-21systemd-logind21:26:5421
1719992531,241cyclictest1360-21systemd-logind21:26:5321
1719992510,2cyclictest0-21swapper/2823:48:3321
1719992510,2cyclictest0-21swapper/2823:48:3221
1719992501,240cyclictest0-21swapper/2822:45:0121
1719992501,240cyclictest0-21swapper/2822:45:0121
1719992500,2cyclictest0-21swapper/2822:55:0621
1719992500,2cyclictest0-21swapper/2822:55:0521
1719992450,2cyclictest0-21swapper/2800:26:3221
1719992450,2cyclictest0-21swapper/2800:26:3221
1719992431,239cyclictest0-21swapper/2822:13:4021
1719992431,239cyclictest0-21swapper/2822:13:4021
1719992431,239cyclictest0-21swapper/2822:13:3921
1719992421,224cyclictest1-21systemd22:06:5221
1719992421,224cyclictest1-21systemd22:06:5221
1719992421,224cyclictest1-21systemd22:06:5221
1719992371,232cyclictest0-21swapper/2822:47:0121
1719992371,232cyclictest0-21swapper/2822:47:0021
1719992361,225cyclictest0-21swapper/2822:20:3521
1719992361,225cyclictest0-21swapper/2822:20:3521
1719992361,225cyclictest0-21swapper/2820:02:4721
1719992361,224cyclictest0-21swapper/2822:57:3621
1719992361,224cyclictest0-21swapper/2822:57:3621
1719992361,224cyclictest0-21swapper/2822:57:3621
1719992351,221cyclictest0-21swapper/2800:07:1521
1719992351,221cyclictest0-21swapper/2800:07:1421
1719992351,221cyclictest0-21swapper/2800:07:1421
1719992350,2cyclictest0-21swapper/2821:23:4221
1719992350,2cyclictest0-21swapper/2821:23:4121
1719992341,226cyclictest1392-21gdbus00:03:5821
1719992341,226cyclictest1392-21gdbus00:03:5821
1719992341,226cyclictest1392-21gdbus00:03:5721
1719992341,222cyclictest755-21systemd-journal21:31:3621
1719992341,222cyclictest755-21systemd-journal21:31:3621
1719992341,222cyclictest755-21systemd-journal21:31:3621
1719992340,2cyclictest0-21swapper/2823:37:3721
1719992340,2cyclictest0-21swapper/2823:37:3721
1719992340,2cyclictest0-21swapper/2823:37:3721
1719992340,2cyclictest0-21swapper/2821:41:4521
1719992340,2cyclictest0-21swapper/2821:41:4521
1719992340,2cyclictest0-21swapper/2820:14:3121
1719992340,2cyclictest0-21swapper/2820:14:3121
1719992340,2cyclictest0-21swapper/2800:14:3021
1719992340,2cyclictest0-21swapper/2800:14:3021
1719992340,2cyclictest0-21swapper/2800:14:2921
1719992331,227cyclictest0-21swapper/2800:35:0821
1719992331,227cyclictest0-21swapper/2800:35:0821
1719992321,218cyclictest8997-21dircolors21:51:4921
1719992321,218cyclictest8997-21dircolors21:51:4921
1719992313,222cyclictest1442-21gdbus23:18:3921
1719992313,222cyclictest1442-21gdbus23:18:3921
1719992313,222cyclictest1442-21gdbus23:18:3921
1719992310,2cyclictest0-21swapper/2823:30:4321
1719992310,2cyclictest0-21swapper/2823:30:4221
1719992301,226cyclictest0-21swapper/2823:00:2521
1719992301,226cyclictest0-21swapper/2823:00:2521
1719992301,226cyclictest0-21swapper/2823:00:2421
1719992301,225cyclictest0-21swapper/2822:15:1321
1719992301,225cyclictest0-21swapper/2822:15:1321
1719992291,220cyclictest23222-21sshd21:38:0321
1719992291,220cyclictest23222-21sshd21:38:0221
1719992290,222cyclictest12051-21systemctl00:17:1321
1719992290,222cyclictest12051-21systemctl00:17:1221
1719992282,219cyclictest3543-21CPU21
1719992271,223cyclictest0-21swapper/2823:44:4921
1719992271,223cyclictest0-21swapper/2823:44:4921
1719992271,221cyclictest2462-21CPU21
1719992271,221cyclictest2462-21CPU21
1719992251,221cyclictest0-21swapper/2823:05:2321
1719992251,221cyclictest0-21swapper/2823:05:2321
1719992251,221cyclictest0-21swapper/2823:05:2321
1719992241,2cyclictest0-21swapper/2822:37:2221
1719992241,2cyclictest0-21swapper/2822:37:2221
1719992241,2cyclictest0-21swapper/2822:37:2121
1719992240,2cyclictest0-21swapper/2820:46:1321
1719992240,2cyclictest0-21swapper/2820:46:1321
168699224159,28cyclictest38166-21kworker/u80:0-poll_mpt2sas0_statu23:06:251
168699224159,28cyclictest38166-21kworker/u80:0-poll_mpt2sas0_statu23:06:251
168699224159,28cyclictest38166-21kworker/u80:0-poll_mpt2sas0_statu23:06:251
1719992232,214cyclictest3545-21CPU21
1719992232,214cyclictest3545-21CPU21
1719992230,2cyclictest17484-21nfsd19:35:1621
1719992230,2cyclictest17484-21nfsd19:35:1521
1719992230,2cyclictest0-21swapper/2821:57:0321
1719992230,2cyclictest0-21swapper/2821:57:0221
1719992220,2cyclictest0-21swapper/2821:50:0121
1719992220,2cyclictest0-21swapper/2821:50:0121
1719992210,2cyclictest0-21swapper/2822:02:0621
1719992210,2cyclictest0-21swapper/2822:02:0621
1719992210,2cyclictest0-21swapper/2821:16:4521
1719992210,2cyclictest0-21swapper/2821:16:4421
1719992210,2cyclictest0-21swapper/2821:00:1221
1719992201,2cyclictest0-21swapper/2800:23:5621
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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