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2026-05-03 - 15:08
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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 Sun May 03, 2026 13:03:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1421199217193,22cyclictest0-21swapper/2012:09:3613
1421199217193,22cyclictest0-21swapper/2012:09:3513
1418899202192,8cyclictest0-21swapper/111:27:501
1418899202192,8cyclictest0-21swapper/111:27:501
1418899202192,8cyclictest0-21swapper/111:27:501
1419099199184,8cyclictest34820-21kworker/u81:5-events_unbound11:37:0423
1419099199184,8cyclictest34820-21kworker/u81:5-events_unbound11:37:0423
1418899197160,20cyclictest37352-21CPU1
1418899197160,20cyclictest37352-21CPU1
1421399193172,16cyclictest0-21swapper/2211:31:3415
1421399193172,16cyclictest0-21swapper/2211:31:3315
1421399193172,16cyclictest0-21swapper/2211:31:3315
1421199192184,5cyclictest0-21swapper/2010:43:0113
1421199192184,5cyclictest0-21swapper/2010:43:0013
1421199192176,13cyclictest0-21swapper/2010:20:1413
1421199192176,13cyclictest0-21swapper/2010:20:1413
1418899192173,5cyclictest171rcu_preempt11:17:251
1418899192173,5cyclictest171rcu_preempt11:17:251
1419199191179,10cyclictest0-21swapper/410:06:0234
1419199191179,10cyclictest0-21swapper/410:06:0234
1419199191179,10cyclictest0-21swapper/410:06:0234
1421199190182,5cyclictest1367-21dbus-daemon10:49:2113
1421199190182,5cyclictest1367-21dbus-daemon10:49:2013
1421199190182,5cyclictest1367-21dbus-daemon10:49:2013
1421199189183,3cyclictest0-21swapper/2010:54:3213
1421199189183,3cyclictest0-21swapper/2010:54:3113
1421199189183,3cyclictest0-21swapper/2010:54:3113
1422999188175,11cyclictest0-21swapper/3511:35:4029
1422999188175,11cyclictest0-21swapper/3511:35:4029
1419099187161,12cyclictest346-21kworker/u81:1-events_unbound09:38:0023
1419099187161,12cyclictest346-21kworker/u81:1-events_unbound09:38:0023
1419099187161,12cyclictest346-21kworker/u81:1-events_unbound09:38:0023
1422999186177,7cyclictest0-21swapper/3511:50:0029
1422999186177,7cyclictest0-21swapper/3511:50:0029
1422999186131,26cyclictest0-21swapper/3512:24:5329
1422999186131,26cyclictest0-21swapper/3512:24:5329
1422999186131,26cyclictest0-21swapper/3512:24:5229
1419399186170,14cyclictest0-21swapper/609:31:5036
1419399186170,14cyclictest0-21swapper/609:31:5036
1419399186170,14cyclictest0-21swapper/609:31:5036
1422999184178,4cyclictest0-21swapper/3511:50:4629
1422999184178,4cyclictest0-21swapper/3511:50:4529
1422999184178,4cyclictest0-21swapper/3511:50:4529
1422999184155,25cyclictest37354-21CPU29
1422999184155,25cyclictest37354-21CPU29
1422999184155,25cyclictest37354-21CPU29
1421199184177,5cyclictest0-21swapper/2011:55:0213
1421199184177,5cyclictest0-21swapper/2011:55:0113
1421199184177,5cyclictest0-21swapper/2011:55:0113
1421199184174,8cyclictest0-21swapper/2011:02:5713
1421199184174,8cyclictest0-21swapper/2011:02:5713
1418899184177,4cyclictest0-21swapper/112:29:151
1418899184177,4cyclictest0-21swapper/112:29:141
1418899184177,4cyclictest0-21swapper/112:29:141
1418899184110,58cyclictest37265-21CPU1
1418899184110,58cyclictest37265-21CPU1
1418899184110,58cyclictest37265-21CPU1
1421199183177,4cyclictest0-21swapper/2012:20:5213
1421199183177,4cyclictest0-21swapper/2012:20:5113
1421199183177,4cyclictest0-21swapper/2012:20:5113
1418799183155,20cyclictest2464-21CPU0
1418799183155,20cyclictest2464-21CPU0
1418799183155,20cyclictest2464-21CPU0
1422099182159,20cyclictest0-21swapper/2812:40:0021
1422099182159,20cyclictest0-21swapper/2812:39:5921
1421199182170,8cyclictest0-21swapper/2012:16:0013
1421199182170,8cyclictest0-21swapper/2012:16:0013
1421199182170,8cyclictest0-21swapper/2012:15:5913
1419199182172,7cyclictest0-21swapper/411:06:2834
1419199182172,7cyclictest0-21swapper/411:06:2734
1419199182172,7cyclictest0-21swapper/411:06:2734
1418899182136,32cyclictest4407-21CPU1
1418899182136,32cyclictest4407-21CPU1
1418899182136,32cyclictest4407-21CPU1
1418899182130,15cyclictest0-21swapper/110:38:111
1418899182130,15cyclictest0-21swapper/110:38:101
1419799181132,45cyclictest37353-21CPU39
1419799181132,45cyclictest37353-21CPU39
1419799181132,45cyclictest37353-21CPU39
1419299181168,10cyclictest19223-21kworker/u81:0-events_unbound11:34:3735
1419299181168,10cyclictest19223-21kworker/u81:0-events_unbound11:34:3635
1419299181168,10cyclictest19223-21kworker/u81:0-events_unbound11:34:3635
1418899181132,36cyclictest3543-21CPU1
1418899181132,36cyclictest3543-21CPU1
1419799180132,43cyclictest3609-21CPU39
1419799180132,43cyclictest3609-21CPU39
1419799180132,43cyclictest3609-21CPU39
1419399180175,4cyclictest0-21swapper/609:51:2336
1419399180175,4cyclictest0-21swapper/609:51:2336
1419399180168,8cyclictest0-21swapper/607:51:0036
1421199179168,8cyclictest1-21systemd10:33:2013
1421199179168,8cyclictest1-21systemd10:33:2013
1421199179168,8cyclictest1-21systemd10:33:1913
1419399179133,39cyclictest2456-21CPU36
1419399179133,39cyclictest2456-21CPU36
1418899179171,6cyclictest0-21swapper/110:26:121
1418899179171,6cyclictest0-21swapper/110:26:121
1419199178167,9cyclictest0-21swapper/409:14:4534
1419199178167,9cyclictest0-21swapper/409:14:4534
1418899178113,38cyclictest3610-21CPU1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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