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2026-06-07 - 03:34
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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 50 highest latencies:
System rackcslot4.osadl.org (updated Sat Jun 06, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32418222317276,27sleep00-21swapper/019:07:540
32418082316275,27sleep10-21swapper/119:07:441
338698521530,4sleep10-21swapper/123:16:201
33035982820,3sleep03303602-21latency_hist21:25:000
32912252610,4sleep03291228-21pmu-power21:05:220
33550532600,4sleep10-21swapper/122:34:181
324216599563,9cyclictest3439308-40unattended-upgr00:29:480
179699550,14rtkit-daemon3427137-21ssh00:12:581
324216599533,9cyclictest3251097-21apt-get19:30:130
324216599492,9cyclictest3318675-21apt-get21:45:120
324216599485,9cyclictest3272007-21apt-get20:20:110
179699450,3rtkit-daemon0-21swapper/123:38:271
179699440,3rtkit-daemon0-21swapper/100:23:311
324216599433,11cyclictest3242699-21apt-get19:10:110
324216599422,13cyclictest3428283-21apt-get00:15:140
3242165994212,9cyclictest3431375-1kworker/u9:000:30:130
324216999412,14cyclictest3247177-21/usr/sbin/munin19:20:251
324216599402,9cyclictest3431856-21apt-get00:20:120
324216599402,10cyclictest3403611-21apt-get23:40:120
179699400,3rtkit-daemon0-21swapper/123:48:511
179699400,3rtkit-daemon0-21swapper/123:41:441
179699400,3rtkit-daemon0-21swapper/123:10:051
3242169993916,8cyclictest3413104-21ssh23:52:201
324216599399,6cyclictest3281610-21python320:45:010
324216599399,5cyclictest3410857-21apt-get23:50:120
324216599392,9cyclictest3333810-21apt-get22:05:140
324216599392,13cyclictest3296381-21apt-get21:15:140
324216599392,11cyclictest3322500-21apt-get21:50:140
3242165993911,8cyclictest3294108-1kworker/u9:222:20:130
3242165993911,8cyclictest3294108-1kworker/u9:222:20:120
3242169993817,4cyclictest34238072sleep100:07:011
324216599384,8cyclictest3245223-21apt-get19:15:130
324216599383,9cyclictest3257475-21apt-get19:45:250
324216599371,8cyclictest3263761-21apt-get20:00:130
3242169993611,4cyclictest3292169-21diskmemload00:04:431
324216599362,11cyclictest3385234-21apt-get23:15:120
324216599361,12cyclictest3443378-21apt-get00:35:120
324216999352,9cyclictest3439308-40unattended-upgr00:29:431
324216999352,6cyclictest3388907-21apt-get23:20:141
324216999352,3cyclictest3320571-21seq21:46:291
324216999350,9cyclictest3358073-21ssh22:37:551
324216599352,9cyclictest3265707-21apt-get20:05:130
324216599351,14cyclictest3249146-21apt-get19:25:130
324216999343,8cyclictest3377648-21apt-get23:05:121
324216999342,8cyclictest3296381-21apt-get21:15:121
324216999342,8cyclictest3285913-21python320:55:011
324216999341,9cyclictest3396168-21apt-get23:30:121
324216999341,9cyclictest3330138-21apt-get22:00:121
3242169993410,6cyclictest3301290-21systemctl21:20:251
324216999340,18cyclictest3282506-21fschecks_time20:45:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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