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2026-04-17 - 17:25
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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 Apr 17, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40578242262220,28sleep10-21swapper/107:06:311
40578772241197,28sleep00-21swapper/007:07:070
179699550,4rtkit-daemon1795-21rtkit-daemon07:22:370
179699540,4rtkit-daemon1795-21rtkit-daemon10:25:390
179699530,4rtkit-daemon1795-21rtkit-daemon11:30:440
179699530,4rtkit-daemon1795-21rtkit-daemon11:06:021
179699510,4rtkit-daemon1795-21rtkit-daemon11:50:541
179699500,4rtkit-daemon1795-21rtkit-daemon09:12:530
179699500,3rtkit-daemon1795-21rtkit-daemon10:55:041
40823172490,1chrt4082318-21/usr/sbin/munin08:05:250
179699480,4rtkit-daemon1795-21rtkit-daemon08:32:300
179699470,3rtkit-daemon1795-21rtkit-daemon09:21:480
602972460,4sleep00-21swapper/012:38:040
179699460,3rtkit-daemon1795-21rtkit-daemon07:33:240
179699450,3rtkit-daemon1795-21rtkit-daemon11:13:490
179699420,5rtkit-daemon4106483-21diskmemload11:19:041
179699420,5rtkit-daemon4106483-21diskmemload11:19:031
405827099409,5cyclictest13-21ksoftirqd/009:35:000
179699380,5rtkit-daemon41575-21unixbench-2d12:10:231
183932370,4sleep10-21swapper/111:39:101
179699370,3rtkit-daemon0-21swapper/108:40:180
179699370,3rtkit-daemon0-21swapper/107:12:511
179699370,3rtkit-daemon0-21swapper/010:25:091
179699360,3rtkit-daemon0-21swapper/112:33:391
179699360,3rtkit-daemon0-21swapper/109:59:491
179699350,4rtkit-daemon1795-21rtkit-daemon11:55:471
179699350,3rtkit-daemon0-21swapper/112:15:371
179699350,3rtkit-daemon0-21swapper/108:58:400
179699340,4rtkit-daemon1795-21rtkit-daemon12:28:531
179699340,4rtkit-daemon1795-21rtkit-daemon10:08:310
179699340,4rtkit-daemon1795-21rtkit-daemon09:49:140
179699340,4rtkit-daemon1795-21rtkit-daemon08:54:061
179699340,4rtkit-daemon1795-21rtkit-daemon07:54:160
179699340,3rtkit-daemon0-21swapper/111:49:281
179699340,3rtkit-daemon0-21swapper/111:03:210
179699340,3rtkit-daemon0-21swapper/009:03:541
179699340,3rtkit-daemon0-21swapper/007:55:561
179699330,5rtkit-daemon4165974-21ssh10:32:551
179699330,4rtkit-daemon1795-21rtkit-daemon12:23:530
179699330,4rtkit-daemon1795-21rtkit-daemon12:23:520
179699330,4rtkit-daemon1795-21rtkit-daemon09:36:050
179699330,4rtkit-daemon1795-21rtkit-daemon09:09:090
179699330,3rtkit-daemon0-21swapper/009:54:290
4058270993218,2cyclictest55331-21ssh12:30:250
179699320,4rtkit-daemon1795-21rtkit-daemon11:02:351
179699320,4rtkit-daemon1795-21rtkit-daemon08:41:151
4058273993128,2cyclictest18150irq/39-mmc010:40:261
179699310,4rtkit-daemon1795-21rtkit-daemon07:30:371
179699310,3rtkit-daemon1795-21rtkit-daemon08:57:591
179699310,3rtkit-daemon1795-21rtkit-daemon08:01:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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