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2026-05-23 - 10:31
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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 May 23, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33920212267225,28sleep00-21swapper/019:07:020
33922652259187,28sleep10-21swapper/119:09:401
349489321490,2sleep00-21swapper/022:16:190
179699700,4rtkit-daemon1795-21rtkit-daemon21:29:000
179699680,3rtkit-daemon1795-21rtkit-daemon20:00:170
179699550,4rtkit-daemon1795-21rtkit-daemon22:24:330
179699550,4rtkit-daemon1795-21rtkit-daemon22:24:330
34635962530,3chrt0-21swapper/021:39:310
179699530,4rtkit-daemon1795-21rtkit-daemon00:26:121
179699500,4rtkit-daemon1795-21rtkit-daemon23:59:220
179699490,3rtkit-daemon1795-21rtkit-daemon00:11:290
179699480,4rtkit-daemon1795-21rtkit-daemon21:51:460
179699480,4rtkit-daemon1795-21rtkit-daemon00:16:350
3392447994712,7cyclictest26-21ksoftirqd/121:39:481
3392443994710,7cyclictest13-21ksoftirqd/023:50:010
179699470,4rtkit-daemon1795-21rtkit-daemon00:32:210
339244399450,9cyclictest13-21ksoftirqd/019:45:010
34170722440,3sleep03392438-21cyclictest20:10:130
34577002430,2sleep03457701-21sh21:30:510
179699430,3rtkit-daemon0-21swapper/019:15:150
339244399421,8cyclictest13-21ksoftirqd/022:37:130
339244399421,8cyclictest13-21ksoftirqd/021:40:220
339244399420,9cyclictest3537460-21/usr/sbin/munin23:15:000
339244399411,8cyclictest13-21ksoftirqd/022:50:010
339244399411,8cyclictest13-21ksoftirqd/022:30:000
339244399410,8cyclictest13-21ksoftirqd/022:31:220
339244399410,8cyclictest13-21ksoftirqd/019:50:010
339244799403,24cyclictest3567114-21python323:55:011
339244399400,8cyclictest13-21ksoftirqd/023:10:020
339244399390,7cyclictest3444891-21apt-get21:15:120
179699390,7rtkit-daemon3525292-21ssh22:57:060
179699390,3rtkit-daemon0-21swapper/023:31:000
179699390,3rtkit-daemon0-21swapper/023:30:590
339244399381,7cyclictest13-21ksoftirqd/019:15:010
339244399381,21cyclictest13-21ksoftirqd/000:00:120
339244399380,8cyclictest13-21ksoftirqd/020:50:390
179699380,3rtkit-daemon0-21swapper/120:02:501
339244399374,4cyclictest13-21ksoftirqd/020:50:000
339244399374,4cyclictest13-21ksoftirqd/020:20:010
339244399373,4cyclictest13-21ksoftirqd/000:10:000
339244399373,3cyclictest13-21ksoftirqd/023:40:000
339244399372,3cyclictest13-21ksoftirqd/022:05:000
339244399370,9cyclictest13-21ksoftirqd/023:20:250
339244399370,8cyclictest13-21ksoftirqd/022:45:000
339244399364,4cyclictest13-21ksoftirqd/020:35:030
339244399363,4cyclictest13-21ksoftirqd/020:00:010
339244399363,3cyclictest13-21ksoftirqd/019:35:000
339244399362,3cyclictest13-21ksoftirqd/000:25:010
339244399361,12cyclictest34500562unixbench-2d21:20:260
339244399360,8cyclictest13-21ksoftirqd/020:25:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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