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2026-01-09 - 05:44
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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 Fri Jan 09, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5156112265186,62sleep00-21swapper/019:09:470
5155852261188,24sleep10-21swapper/119:09:291
179699720,6rtkit-daemon1795-21rtkit-daemon00:12:000
6034612610,3sleep10-21swapper/122:00:161
179699580,4rtkit-daemon1795-21rtkit-daemon21:20:071
6017872520,5sleep00-21swapper/021:57:350
6812422500,1chrt680837-21/usr/sbin/munin23:40:181
179699500,4rtkit-daemon1795-21rtkit-daemon00:26:560
179699490,3rtkit-daemon1795-21rtkit-daemon22:23:481
6727082460,5sleep10-21swapper/123:29:361
179699460,4rtkit-daemon1795-21rtkit-daemon20:57:181
179699460,3rtkit-daemon1795-21rtkit-daemon22:15:561
179699450,3rtkit-daemon1795-21rtkit-daemon22:07:431
6191022400,1sleep0619103-21ssh22:20:120
179699400,11rtkit-daemon706709-21ssh00:14:101
179699380,3rtkit-daemon0-21swapper/119:42:481
179699370,3rtkit-daemon0-21swapper/021:28:440
179699370,3rtkit-daemon0-21swapper/020:06:121
179699360,3rtkit-daemon0-21swapper/123:33:311
179699360,3rtkit-daemon0-21swapper/122:35:271
179699350,4rtkit-daemon0-21swapper/120:59:320
179699350,3rtkit-daemon1795-21rtkit-daemon22:39:080
179699350,3rtkit-daemon0-21swapper/123:13:581
179699340,4rtkit-daemon1795-21rtkit-daemon23:03:141
179699340,4rtkit-daemon1795-21rtkit-daemon22:26:141
179699340,4rtkit-daemon1795-21rtkit-daemon21:15:430
179699340,4rtkit-daemon1795-21rtkit-daemon00:19:530
179699340,3rtkit-daemon0-21swapper/121:57:181
179699340,3rtkit-daemon0-21swapper/121:52:010
179699340,3rtkit-daemon0-21swapper/020:05:440
179699340,3rtkit-daemon0-21swapper/020:02:310
51573199332,3cyclictest141rcu_preempt23:00:011
179699330,3rtkit-daemon1795-21rtkit-daemon21:10:180
179699330,3rtkit-daemon0-21swapper/123:12:000
179699330,3rtkit-daemon0-21swapper/122:56:360
179699330,3rtkit-daemon0-21swapper/100:05:560
179699330,3rtkit-daemon0-21swapper/000:22:411
51573199320,8cyclictest527990-21sendmail19:40:001
51572399328,10cyclictest556089-21apt-get20:50:110
51572399325,6cyclictest13-21ksoftirqd/021:44:530
179699320,4rtkit-daemon590933-21ssh21:44:061
179699320,4rtkit-daemon1795-21rtkit-daemon20:21:250
179699320,4rtkit-daemon0-21swapper/000:16:071
179699320,3rtkit-daemon1795-21rtkit-daemon19:57:430
51572399315,3cyclictest141rcu_preempt00:00:000
51572399311,10cyclictest13-21ksoftirqd/023:25:140
179699310,4rtkit-daemon1795-21rtkit-daemon20:43:010
179699310,3rtkit-daemon1795-21rtkit-daemon23:58:471
179699310,3rtkit-daemon1795-21rtkit-daemon21:21:530
179699310,3rtkit-daemon0-21swapper/122:13:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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