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2026-03-18 - 01:51
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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 Tue Mar 17, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
380916423380,9sleep00-21swapper/007:05:240
38100172274184,29sleep10-21swapper/107:08:311
383241821550,8sleep126-21ksoftirqd/108:05:001
394516421260,3sleep0161rcuc/011:10:040
39666452610,5sleep10-21swapper/111:40:161
39460662590,1sleep10-21swapper/111:10:211
179699560,3rtkit-daemon1795-21rtkit-daemon11:20:271
179699560,3rtkit-daemon0-21swapper/010:55:280
179699540,3rtkit-daemon1795-21rtkit-daemon08:48:121
179699530,4rtkit-daemon1795-21rtkit-daemon11:51:481
179699520,6rtkit-daemon3879384-21ssh09:37:120
179699500,4rtkit-daemon1795-21rtkit-daemon09:29:550
179699500,4rtkit-daemon1795-21rtkit-daemon08:45:120
179699500,3rtkit-daemon1795-21rtkit-daemon09:51:011
179699500,3rtkit-daemon0-21swapper/011:33:150
179699490,3rtkit-daemon1795-21rtkit-daemon09:13:041
179699490,3rtkit-daemon1795-21rtkit-daemon07:31:090
179699490,3rtkit-daemon0-21swapper/010:08:060
179699490,3rtkit-daemon0-21swapper/009:32:580
179699480,4rtkit-daemon1795-21rtkit-daemon07:46:530
179699480,3rtkit-daemon1795-21rtkit-daemon12:21:330
179699480,3rtkit-daemon1795-21rtkit-daemon09:22:140
179699480,3rtkit-daemon0-21swapper/012:10:310
3810285994720,4cyclictest26-21ksoftirqd/110:00:011
179699470,3rtkit-daemon1795-21rtkit-daemon07:11:400
179699460,1rtkit-daemon1795-21rtkit-daemon10:02:140
179699450,3rtkit-daemon1795-21rtkit-daemon07:54:420
179699450,3rtkit-daemon0-21swapper/008:03:070
179699450,1rtkit-daemon1795-21rtkit-daemon09:59:280
39768742440,2sleep10-21swapper/111:55:011
39181002440,2sleep10-21swapper/110:30:231
179699440,4rtkit-daemon1795-21rtkit-daemon09:16:040
179699440,3rtkit-daemon1795-21rtkit-daemon08:10:310
179699440,3rtkit-daemon0-21swapper/010:56:041
179699440,1rtkit-daemon1795-21rtkit-daemon09:11:270
179699430,3rtkit-daemon1795-21rtkit-daemon08:28:180
179699430,1rtkit-daemon1795-21rtkit-daemon08:30:260
3810285994216,7cyclictest26-21ksoftirqd/109:20:001
179699420,4rtkit-daemon1795-21rtkit-daemon11:39:390
179699420,4rtkit-daemon1795-21rtkit-daemon08:42:460
179699420,1rtkit-daemon1795-21rtkit-daemon12:35:100
179699420,1rtkit-daemon1795-21rtkit-daemon08:20:050
179699410,4rtkit-daemon3993316-21ssh12:17:231
179699410,3rtkit-daemon1795-21rtkit-daemon09:08:350
179699410,3rtkit-daemon1795-21rtkit-daemon07:57:241
179699410,1rtkit-daemon1795-21rtkit-daemon11:17:350
381028599406,9cyclictest26-21ksoftirqd/111:00:231
179699400,4rtkit-daemon1795-21rtkit-daemon10:28:351
179699400,3rtkit-daemon1795-21rtkit-daemon10:33:450
179699400,3rtkit-daemon0-21swapper/108:59:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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