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2026-08-22 - 01:26
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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 Fri Aug 21, 2026 13:02:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1227499231218,8cyclictest1367-21dbus-daemon09:35:1837
1227499231218,8cyclictest1367-21dbus-daemon09:35:1737
1229999221213,4cyclictest2466-21CPU21
1229999221213,4cyclictest2466-21CPU21
1229999221213,4cyclictest2466-21CPU21
1227499208181,12cyclictest3541-21CPU37
1227499208181,12cyclictest3541-21CPU37
1229999206200,4cyclictest0-21swapper/2810:26:0521
1229999206200,4cyclictest0-21swapper/2810:26:0521
1229999206200,4cyclictest0-21swapper/2810:26:0421
1229999201196,4cyclictest0-21swapper/2810:43:1221
1229999201196,4cyclictest0-21swapper/2810:43:1121
1229999200186,10cyclictest25679-21sshd10:38:5521
1229999200186,10cyclictest25679-21sshd10:38:5421
1229999200186,10cyclictest25679-21sshd10:38:5421
1227699198193,3cyclictest0-21swapper/908:10:1739
1229999195186,6cyclictest3535-21qemu-system-x8610:30:2221
1229999195186,6cyclictest3535-21qemu-system-x8610:30:2221
1229999195186,6cyclictest3535-21qemu-system-x8610:30:2121
1229999193174,15cyclictest0-21swapper/2811:00:5321
1229999193174,15cyclictest0-21swapper/2811:00:5321
1229999193174,15cyclictest0-21swapper/2811:00:5321
1227499191184,5cyclictest0-21swapper/709:21:1237
1227499191184,5cyclictest0-21swapper/709:21:1237
1227499191184,5cyclictest0-21swapper/709:21:1137
1229999190184,4cyclictest0-21swapper/2810:18:1121
1229999190184,4cyclictest0-21swapper/2810:18:1121
1229999190184,4cyclictest0-21swapper/2810:18:1121
1229399190183,4cyclictest0-21swapper/2209:30:1915
1229399190183,4cyclictest0-21swapper/2209:30:1915
1227499190177,11cyclictest0-21swapper/710:00:1237
1227499190177,11cyclictest0-21swapper/710:00:1237
1227499190172,11cyclictest0-21swapper/709:59:4637
1227499190172,11cyclictest0-21swapper/709:59:4537
1227499187178,7cyclictest0-21swapper/710:14:0537
1227499187178,7cyclictest0-21swapper/710:14:0437
1227499186176,8cyclictest0-21swapper/709:52:1937
1227499186176,8cyclictest0-21swapper/709:52:1837
1226999186179,4cyclictest37884-21kworker/u81:0+events_unbound11:40:1823
1226999186179,4cyclictest37884-21kworker/u81:0+events_unbound11:40:1723
1227499185173,10cyclictest0-21swapper/710:10:0037
1227499185173,10cyclictest0-21swapper/710:10:0037
1227499185173,10cyclictest0-21swapper/710:09:5937
1227499184179,4cyclictest0-21swapper/709:44:5537
1227499184179,4cyclictest0-21swapper/709:44:5437
1227499184178,4cyclictest0-21swapper/707:49:2737
1227499184178,4cyclictest0-21swapper/707:49:2637
1230299183130,33cyclictest0-21swapper/3009:52:5724
1230299183130,33cyclictest0-21swapper/3009:52:5724
1230399182164,14cyclictest0-21swapper/3107:10:0625
1230399182164,14cyclictest0-21swapper/3107:10:0525
1229999181166,11cyclictest2464-21CPU21
1227699181169,9cyclictest1442-21gdbus10:30:1739
1227699181169,9cyclictest1442-21gdbus10:30:1739
1227699181169,9cyclictest1442-21gdbus10:30:1639
1227399180175,3cyclictest0-21swapper/610:35:1936
1227399180175,3cyclictest0-21swapper/610:35:1936
1227399180175,3cyclictest0-21swapper/610:35:1836
1227499179173,5cyclictest0-21swapper/709:34:1737
1227499179173,5cyclictest0-21swapper/709:34:1737
1229799177159,10cyclictest17484-21nfsd09:44:1419
1229799177159,10cyclictest17484-21nfsd09:44:1419
1228799177161,12cyclictest2456-21CPU10
1228799177161,12cyclictest2456-21CPU10
1228799177161,12cyclictest2456-21CPU10
1227499177165,9cyclictest0-21swapper/709:25:3137
1227499177165,9cyclictest0-21swapper/709:25:3137
123079917689,83cyclictest37265-21CPU29
123079917689,83cyclictest37265-21CPU29
123079917689,83cyclictest37265-21CPU29
1230699176173,2cyclictest0-21swapper/3411:13:2428
1230699176173,2cyclictest0-21swapper/3411:13:2328
1230699176173,2cyclictest0-21swapper/3411:13:2328
122849917696,67cyclictest3609-21CPU8
122849917696,67cyclictest3609-21CPU8
122849917696,67cyclictest3609-21CPU8
1227499174158,12cyclictest0-21swapper/711:42:4337
1227499174158,12cyclictest0-21swapper/711:42:4337
1227499174140,10cyclictest171rcu_preempt10:41:4237
1227499174140,10cyclictest171rcu_preempt10:41:4137
1229999173158,10cyclictest3609-21CPU21
1229999173158,10cyclictest3609-21CPU21
1228999173164,5cyclictest0-21swapper/1911:05:1611
1228999173164,5cyclictest0-21swapper/1911:05:1611
1228199173168,3cyclictest0-21swapper/1310:30:175
1228199173168,3cyclictest0-21swapper/1310:30:165
1228199173168,3cyclictest0-21swapper/1310:30:165
1227499173169,2cyclictest0-21swapper/709:13:0137
1227499173169,2cyclictest0-21swapper/709:13:0137
1227499173169,2cyclictest0-21swapper/709:13:0037
1230399172164,6cyclictest0-21swapper/3110:55:1425
1230399172164,6cyclictest0-21swapper/3110:55:1425
1229999172167,4cyclictest0-21swapper/2808:05:2021
1229999172161,8cyclictest0-21swapper/2807:25:2921
1229999172161,8cyclictest0-21swapper/2807:25:2921
1229299172169,2cyclictest0-21swapper/2111:50:2014
1229299172169,2cyclictest0-21swapper/2111:50:2014
1229299172169,2cyclictest0-21swapper/2111:50:2014
1227499172167,3cyclictest17481-21nfsd07:15:1637
1227499172161,6cyclictest5842-21sshd09:19:3037
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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