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2026-05-03 - 17:24
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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 Sun May 03, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21870612323280,28sleep00-21swapper/007:07:470
21870012315273,28sleep10-21swapper/107:07:101
22156992600,4sleep10-21swapper/108:20:141
179699540,3rtkit-daemon1795-21rtkit-daemon10:44:320
179699510,3rtkit-daemon1795-21rtkit-daemon10:34:490
23166402490,7sleep00-21swapper/010:55:260
179699490,3rtkit-daemon1795-21rtkit-daemon11:20:191
179699480,4rtkit-daemon1795-21rtkit-daemon08:50:591
179699470,3rtkit-daemon1795-21rtkit-daemon07:40:160
23905292430,3sleep10-21swapper/112:34:261
23900242420,1sleep00-21swapper/012:33:240
179699420,4rtkit-daemon1795-21rtkit-daemon09:55:421
179699410,3rtkit-daemon1795-21rtkit-daemon10:06:221
179699400,3rtkit-daemon1795-21rtkit-daemon10:02:211
179699370,4rtkit-daemon1795-21rtkit-daemon09:20:170
179699360,3rtkit-daemon0-21swapper/112:36:271
179699360,3rtkit-daemon0-21swapper/108:56:091
179699360,3rtkit-daemon0-21swapper/108:37:541
179699360,3rtkit-daemon0-21swapper/011:27:390
179699350,5rtkit-daemon2235298-21diskmemload11:57:481
179699350,4rtkit-daemon2264521-21ssh09:46:590
179699350,4rtkit-daemon1795-21rtkit-daemon11:05:010
179699350,4rtkit-daemon1795-21rtkit-daemon07:13:570
179699350,3rtkit-daemon1795-21rtkit-daemon07:55:130
179699350,3rtkit-daemon0-21swapper/108:20:370
179699350,3rtkit-daemon0-21swapper/011:08:311
179699350,3rtkit-daemon0-21swapper/010:12:091
179699350,3rtkit-daemon0-21swapper/008:08:271
179699350,3rtkit-daemon0-21swapper/007:34:291
179699340,4rtkit-daemon1795-21rtkit-daemon11:08:250
179699340,4rtkit-daemon1795-21rtkit-daemon10:51:510
179699340,4rtkit-daemon1795-21rtkit-daemon08:11:100
179699340,3rtkit-daemon0-21swapper/112:26:131
179699340,3rtkit-daemon0-21swapper/011:16:431
179699340,3rtkit-daemon0-21swapper/010:16:251
179699340,3rtkit-daemon0-21swapper/007:20:561
179699330,5rtkit-daemon2235298-21diskmemload09:50:091
179699330,4rtkit-daemon1795-21rtkit-daemon08:19:221
179699330,4rtkit-daemon1795-21rtkit-daemon08:08:210
179699330,3rtkit-daemon0-21swapper/112:11:521
179699330,3rtkit-daemon0-21swapper/111:31:010
179699330,3rtkit-daemon0-21swapper/107:23:350
179699330,3rtkit-daemon0-21swapper/011:11:121
179699330,3rtkit-daemon0-21swapper/009:15:081
179699330,3rtkit-daemon0-21swapper/007:35:481
2187391993228,3cyclictest66950irq/132-enp2s009:38:151
179699320,4rtkit-daemon1795-21rtkit-daemon11:47:171
179699320,3rtkit-daemon0-21swapper/108:47:540
179699320,3rtkit-daemon0-21swapper/011:26:211
179699320,3rtkit-daemon0-21swapper/010:55:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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