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2026-05-12 - 05:04
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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 May 12, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8318372270191,29sleep00-21swapper/019:07:130
8318952257193,50sleep10-21swapper/119:07:491
102582621490,2sleep10-21swapper/100:21:111
10329482700,2sleep10-21swapper/100:30:241
9327322610,3sleep10-21swapper/122:18:021
10125152590,3sleep10-21swapper/100:04:071
179699580,4rtkit-daemon1795-21rtkit-daemon23:30:110
8653052570,3sleep10-21swapper/120:30:141
9824692550,4sleep10-21swapper/123:23:411
179699550,4rtkit-daemon1795-21rtkit-daemon22:55:040
179699540,4rtkit-daemon1795-21rtkit-daemon21:57:340
179699530,4rtkit-daemon1795-21rtkit-daemon19:49:260
179699530,3rtkit-daemon1795-21rtkit-daemon19:56:310
179699520,4rtkit-daemon1795-21rtkit-daemon00:37:360
179699510,4rtkit-daemon1795-21rtkit-daemon23:01:420
179699510,4rtkit-daemon1795-21rtkit-daemon21:13:140
9754192490,5sleep1975233-21python323:15:011
8613852490,1sleep00-21swapper/020:20:200
179699470,3rtkit-daemon1795-21rtkit-daemon21:25:320
179699450,2rtkit-daemon1795-21rtkit-daemon23:39:151
179699440,5rtkit-daemon880997-21diskmemload22:38:230
8607402420,2sleep1860735-21apt-get20:20:141
179699420,6rtkit-daemon919648-21/usr/sbin/munin22:00:211
179699400,6rtkit-daemon896115-21ssh21:29:431
179699380,5rtkit-daemon880997-21diskmemload21:34:451
179699380,5rtkit-daemon880997-21diskmemload21:34:451
179699380,5rtkit-daemon872353-21gzip20:45:230
179699370,4rtkit-daemon1795-21rtkit-daemon23:40:110
179699370,4rtkit-daemon1795-21rtkit-daemon21:30:150
179699370,4rtkit-daemon1795-21rtkit-daemon21:30:140
179699370,4rtkit-daemon0-21swapper/019:43:331
179699370,3rtkit-daemon0-21swapper/023:35:570
179699360,3rtkit-daemon0-21swapper/121:04:210
179699360,3rtkit-daemon0-21swapper/023:54:470
179699360,3rtkit-daemon0-21swapper/019:19:260
179699350,3rtkit-daemon0-21swapper/000:25:241
179699340,4rtkit-daemon1795-21rtkit-daemon22:20:141
179699340,4rtkit-daemon1795-21rtkit-daemon22:00:260
179699340,4rtkit-daemon1795-21rtkit-daemon00:35:000
179699340,4rtkit-daemon1795-21rtkit-daemon00:16:010
179699340,4rtkit-daemon0-21swapper/120:51:581
179699340,3rtkit-daemon0-21swapper/121:07:321
179699340,3rtkit-daemon0-21swapper/120:33:400
179699340,3rtkit-daemon0-21swapper/021:22:141
179699340,3rtkit-daemon0-21swapper/020:18:250
179699330,5rtkit-daemon1795-21rtkit-daemon20:01:370
179699330,4rtkit-daemon1795-21rtkit-daemon23:09:150
179699330,3rtkit-daemon1795-21rtkit-daemon23:45:160
179699330,3rtkit-daemon0-21swapper/121:06:490
179699330,3rtkit-daemon0-21swapper/120:28:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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