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2026-05-10 - 15:03
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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 10, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
887472266207,45sleep00-21swapper/007:06:300
887132261183,43sleep10-21swapper/107:06:091
15132921550,4sleep00-21swapper/009:25:480
179699690,3rtkit-daemon1795-21rtkit-daemon09:48:321
2890472630,4sleep00-21swapper/012:30:180
1693102600,1sleep00-21swapper/009:50:170
2836912590,4sleep10-21swapper/112:23:511
2836912590,4sleep10-21swapper/112:23:501
179699560,4rtkit-daemon1795-21rtkit-daemon08:44:411
179699540,4rtkit-daemon1795-21rtkit-daemon12:16:161
179699520,4rtkit-daemon1795-21rtkit-daemon12:05:151
179699510,4rtkit-daemon1795-21rtkit-daemon07:12:101
179699510,3rtkit-daemon1795-21rtkit-daemon07:20:141
179699500,4rtkit-daemon1795-21rtkit-daemon11:40:510
2927642480,5sleep00-21swapper/012:35:170
179699480,4rtkit-daemon1795-21rtkit-daemon08:47:121
179699470,3rtkit-daemon1795-21rtkit-daemon08:23:431
179699460,4rtkit-daemon1795-21rtkit-daemon07:18:571
179699460,3rtkit-daemon1795-21rtkit-daemon09:53:221
179699460,3rtkit-daemon1795-21rtkit-daemon09:34:051
179699460,3rtkit-daemon1795-21rtkit-daemon07:41:011
179699460,3rtkit-daemon1795-21rtkit-daemon07:39:211
179699410,3rtkit-daemon0-21swapper/010:22:570
89196994010,5cyclictest13-21ksoftirqd/009:40:000
179699380,3rtkit-daemon0-21swapper/110:32:131
179699380,3rtkit-daemon0-21swapper/009:01:480
8920199370,35cyclictest0-21swapper/111:50:161
179699370,3rtkit-daemon0-21swapper/109:29:281
179699360,3rtkit-daemon0-21swapper/008:53:230
179699340,4rtkit-daemon1795-21rtkit-daemon11:35:220
179699340,3rtkit-daemon0-21swapper/107:50:331
179699340,3rtkit-daemon0-21swapper/008:53:301
8919699335,3cyclictest141rcu_preempt09:15:010
179699330,3rtkit-daemon0-21swapper/110:27:270
179699330,3rtkit-daemon0-21swapper/110:04:200
179699330,3rtkit-daemon0-21swapper/108:24:180
179699330,3rtkit-daemon0-21swapper/010:10:171
179699330,3rtkit-daemon0-21swapper/008:10:461
1677202330,4sleep00-21swapper/009:48:160
89201993230,1cyclictest0-21swapper/108:05:101
89196993224,6cyclictest114024-21taskset08:09:500
8919699321,7cyclictest221238-21apt-get11:00:130
179699320,4rtkit-daemon1795-21rtkit-daemon10:11:550
179699320,3rtkit-daemon1795-21rtkit-daemon11:55:220
179699320,3rtkit-daemon0-21swapper/107:31:260
89201993128,2cyclictest66950irq/132-enp2s012:38:451
89196993116,4cyclictest13-21ksoftirqd/009:35:000
8919699310,8cyclictest172385-21apt-get09:55:140
2315912310,2sleep00-21swapper/011:14:090
179699310,3rtkit-daemon0-21swapper/112:08:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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