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2026-05-08 - 19:01
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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 Fri May 08, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18814772268188,27sleep00-21swapper/007:06:480
18816772245180,50sleep10-21swapper/107:08:571
19737812830,1chrt1973516-21/usr/sbin/munin10:05:150
20781602700,3sleep10-21swapper/112:19:331
19529442640,3sleep00-21swapper/009:38:040
20722652610,4sleep10-21swapper/112:10:231
179699590,4rtkit-daemon1795-21rtkit-daemon08:35:181
179699530,3rtkit-daemon1795-21rtkit-daemon09:25:581
179699510,4rtkit-daemon1795-21rtkit-daemon07:19:400
179699500,4rtkit-daemon1795-21rtkit-daemon12:29:020
18963992490,9sleep013-21ksoftirqd/007:45:140
179699480,3rtkit-daemon1795-21rtkit-daemon09:10:550
179699400,6rtkit-daemon1930670-21cron09:09:591
179699400,3rtkit-daemon0-21swapper/010:25:440
179699390,3rtkit-daemon0-21swapper/109:20:181
179699380,4rtkit-daemon0-21swapper/010:58:510
179699380,3rtkit-daemon0-21swapper/109:19:311
179699370,3rtkit-daemon0-21swapper/108:35:330
179699370,3rtkit-daemon0-21swapper/010:23:410
179699370,3rtkit-daemon0-21swapper/010:23:410
179699360,6rtkit-daemon1927577-21cat09:00:170
179699360,3rtkit-daemon1795-21rtkit-daemon08:55:001
179699360,3rtkit-daemon0-21swapper/111:26:560
179699360,3rtkit-daemon0-21swapper/010:16:151
179699360,3rtkit-daemon0-21swapper/007:53:211
179699360,3rtkit-daemon0-21swapper/007:37:430
179699350,3rtkit-daemon0-21swapper/007:25:020
179699340,4rtkit-daemon1795-21rtkit-daemon09:58:091
179699340,3rtkit-daemon1795-21rtkit-daemon09:14:381
179699340,3rtkit-daemon0-21swapper/011:37:460
179699340,3rtkit-daemon0-21swapper/010:32:400
179699340,3rtkit-daemon0-21swapper/010:30:101
179699340,3rtkit-daemon0-21swapper/008:26:081
179699340,3rtkit-daemon0-21swapper/007:10:151
179699330,4rtkit-daemon1795-21rtkit-daemon12:05:081
179699330,3rtkit-daemon0-21swapper/112:36:161
179699330,3rtkit-daemon0-21swapper/112:00:190
179699330,3rtkit-daemon0-21swapper/008:17:531
1881901993228,3cyclictest66950irq/132-enp2s012:13:560
179699320,4rtkit-daemon1795-21rtkit-daemon11:59:111
179699320,3rtkit-daemon1795-21rtkit-daemon11:53:341
179699320,3rtkit-daemon0-21swapper/108:10:090
179699320,3rtkit-daemon0-21swapper/011:20:231
179699320,3rtkit-daemon0-21swapper/009:03:461
179699320,3rtkit-daemon0-21swapper/007:38:401
19885412310,4chrt0-21swapper/110:24:451
19885412310,4chrt0-21swapper/110:24:451
1881901993128,2cyclictest66950irq/132-enp2s011:57:450
1881901993128,2cyclictest66950irq/132-enp2s011:45:140
179699310,3rtkit-daemon1795-21rtkit-daemon10:11:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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