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2026-03-22 - 00:48
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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 Mar 21, 2026 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39165502263182,27sleep00-21swapper/007:08:530
39165772261186,59sleep10-21swapper/107:09:121
179699610,4rtkit-daemon1795-21rtkit-daemon10:50:450
179699540,4rtkit-daemon1795-21rtkit-daemon11:55:021
179699520,4rtkit-daemon1795-21rtkit-daemon07:50:140
179699500,3rtkit-daemon1795-21rtkit-daemon07:36:430
179699490,3rtkit-daemon1795-21rtkit-daemon09:13:160
179699490,3rtkit-daemon1795-21rtkit-daemon08:48:180
179699490,3rtkit-daemon1795-21rtkit-daemon08:13:100
179699470,4rtkit-daemon1795-21rtkit-daemon11:01:590
179699470,3rtkit-daemon1795-21rtkit-daemon12:13:040
179699470,3rtkit-daemon1795-21rtkit-daemon08:39:020
179699430,5rtkit-daemon3965101-21diskmemload09:49:570
179699430,5rtkit-daemon3965101-21diskmemload09:49:570
179699420,9rtkit-daemon4083294-21rm11:54:170
179699390,6rtkit-daemon1795-21rtkit-daemon10:25:140
179699380,4rtkit-daemon1795-21rtkit-daemon09:50:111
179699380,3rtkit-daemon0-21swapper/112:22:421
179699380,3rtkit-daemon0-21swapper/011:26:350
179699370,3rtkit-daemon1795-21rtkit-daemon09:00:210
179699370,3rtkit-daemon0-21swapper/012:39:410
179699360,4rtkit-daemon1795-21rtkit-daemon10:08:170
179699360,3rtkit-daemon0-21swapper/010:14:251
179699360,3rtkit-daemon0-21swapper/009:07:190
179699350,3rtkit-daemon0-21swapper/111:52:231
179699340,4rtkit-daemon4039970-21ssh10:52:441
179699340,4rtkit-daemon3933729-21apt-config07:50:021
179699340,4rtkit-daemon1795-21rtkit-daemon11:34:561
179699340,3rtkit-daemon0-21swapper/010:02:090
179699340,3rtkit-daemon0-21swapper/009:57:281
179699340,3rtkit-daemon0-21swapper/008:18:201
3916764993331,1cyclictest0-21swapper/108:30:141
179699330,3rtkit-daemon1795-21rtkit-daemon09:43:160
179699330,3rtkit-daemon0-21swapper/012:13:111
179699330,3rtkit-daemon0-21swapper/010:22:231
179699330,3rtkit-daemon0-21swapper/010:02:231
179699330,3rtkit-daemon0-21swapper/007:57:580
179699330,3rtkit-daemon0-21swapper/007:57:570
179699320,4rtkit-daemon1795-21rtkit-daemon09:47:011
179699320,4rtkit-daemon1795-21rtkit-daemon09:47:011
179699320,3rtkit-daemon0-21swapper/112:04:500
179699320,3rtkit-daemon0-21swapper/011:23:491
179699320,3rtkit-daemon0-21swapper/010:45:121
179699320,3rtkit-daemon0-21swapper/009:11:311
179699320,3rtkit-daemon0-21swapper/008:36:511
179699320,3rtkit-daemon0-21swapper/008:00:041
179699310,4rtkit-daemon1795-21rtkit-daemon12:17:251
179699310,3rtkit-daemon1795-21rtkit-daemon07:33:160
179699310,3rtkit-daemon1795-21rtkit-daemon07:13:200
179699310,3rtkit-daemon0-21swapper/011:05:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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