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2026-05-22 - 04:17
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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 100 highest latencies:
System rackcslot4.osadl.org (updated Fri May 22, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1339972320279,27sleep10-21swapper/119:08:121
1340542316274,28sleep00-21swapper/019:08:500
2505652790,1chrt250563-21/usr/sbin/munin22:40:160
2809542650,4sleep1280951-21ssh23:20:221
179699490,3rtkit-daemon0-21swapper/022:55:450
179699470,3rtkit-daemon0-21swapper/022:46:200
2877922460,4sleep10-21swapper/123:30:151
179699460,3rtkit-daemon0-21swapper/019:14:470
179699440,5rtkit-daemon1795-21rtkit-daemon19:24:180
179699440,3rtkit-daemon0-21swapper/023:36:500
179699430,4rtkit-daemon0-21swapper/023:32:460
179699410,3rtkit-daemon0-21swapper/023:41:250
179699400,3rtkit-daemon0-21swapper/121:02:410
179699400,3rtkit-daemon0-21swapper/022:23:350
179699390,3rtkit-daemon0-21swapper/022:39:050
179699390,3rtkit-daemon0-21swapper/022:19:260
179699390,3rtkit-daemon0-21swapper/019:30:380
134283993917,12cyclictest331058-21rm00:29:060
179699370,3rtkit-daemon0-21swapper/100:36:580
134283993613,7cyclictest13-21ksoftirqd/023:10:000
179699350,3rtkit-daemon1795-21rtkit-daemon23:17:520
134283993520,5cyclictest305527-21rm23:54:370
134283993511,6cyclictest172770-21cron20:45:000
179699340,4rtkit-daemon1795-21rtkit-daemon20:04:201
179699340,4rtkit-daemon1795-21rtkit-daemon00:37:191
13428699347,17cyclictest141rcu_preempt20:20:021
179699330,4rtkit-daemon1795-21rtkit-daemon00:31:461
179699330,3rtkit-daemon0-21swapper/100:31:380
134283993318,3cyclictest151036-21head19:50:150
134283993311,9cyclictest13-21ksoftirqd/021:14:350
134283993310,4cyclictest187577-21ntp_offset21:15:230
134283993211,5cyclictest13-21ksoftirqd/020:35:010
2101592310,12sleep126-21ksoftirqd/121:45:221
13428699316,5cyclictest320497-21cat00:14:551
134283993128,2cyclictest66950irq/132-enp2s022:54:320
179699300,4rtkit-daemon182550-21diskmemload22:31:090
134286993025,3cyclictest220062-21turbostat21:59:591
13428699300,2cyclictest26-21ksoftirqd/122:05:161
13428399308,5cyclictest13-21ksoftirqd/020:35:020
13428399307,12cyclictest0-21swapper/000:13:310
13428399306,9cyclictest13-21ksoftirqd/020:45:210
13428399303,2cyclictest141rcu_preempt22:14:110
134283993027,2cyclictest66950irq/132-enp2s022:08:550
134283993022,6cyclictest141824-21sendmail_mailst19:25:230
134286992911,3cyclictest182550-21diskmemload21:21:161
134286992911,3cyclictest182550-21diskmemload21:21:161
13428399297,7cyclictest13-21ksoftirqd/000:00:120
13428399296,12cyclictest0-21swapper/023:01:020
179699280,3rtkit-daemon1795-21rtkit-daemon20:54:450
179699280,3rtkit-daemon0-21swapper/019:18:080
13428699282,5cyclictest141rcu_preempt23:15:121
13428699281,4cyclictest182550-21diskmemload22:15:131
13428699281,4cyclictest141rcu_preempt21:30:131
134286992812,3cyclictest26-21ksoftirqd/122:50:131
134286992812,10cyclictest158473-21apt-get20:10:131
134286992811,6cyclictest26-21ksoftirqd/121:10:511
134286992811,3cyclictest26-21ksoftirqd/123:35:121
13428399288,7cyclictest13-21ksoftirqd/020:15:170
134283992810,8cyclictest13-21ksoftirqd/021:20:050
134283992810,8cyclictest13-21ksoftirqd/021:20:040
134283992810,8cyclictest13-21ksoftirqd/019:36:200
13428699271,6cyclictest272925-21apt-get23:10:121
13428699271,5cyclictest141rcu_preempt22:20:131
134286992712,3cyclictest26-21ksoftirqd/121:15:141
134286992712,3cyclictest26-21ksoftirqd/100:15:121
134286992711,3cyclictest26-21ksoftirqd/123:50:141
134286992711,3cyclictest26-21ksoftirqd/123:40:131
134286992711,3cyclictest26-21ksoftirqd/122:55:141
134286992711,3cyclictest26-21ksoftirqd/121:50:141
134286992711,3cyclictest26-21ksoftirqd/100:10:011
134286992711,10cyclictest174934-21apt-get20:50:131
13428399278,5cyclictest177923-21switchtime20:55:230
13428399277,6cyclictest13-21ksoftirqd/022:26:090
13428399276,7cyclictest13-21ksoftirqd/000:08:030
13428399276,6cyclictest322954-21ssh00:17:180
13428399275,8cyclictest13-21ksoftirqd/020:10:400
134283992724,2cyclictest66950irq/132-enp2s021:38:590
13428399271,8cyclictest182550-21diskmemload00:23:310
13428699263,4cyclictest182550-21diskmemload22:00:251
13428699263,4cyclictest141249-21gltestperf19:25:171
13428699261,21cyclictest227655-21apt-get22:10:061
134286992611,3cyclictest26-21ksoftirqd/123:25:141
134286992611,3cyclictest26-21ksoftirqd/122:45:071
134286992611,3cyclictest26-21ksoftirqd/122:30:121
134286992611,2cyclictest26-21ksoftirqd/122:25:131
134286992611,2cyclictest26-21ksoftirqd/121:25:121
134286992610,3cyclictest26-21ksoftirqd/123:00:121
13428399267,7cyclictest13-21ksoftirqd/021:06:010
13428399266,5cyclictest13-21ksoftirqd/021:45:180
13428399265,7cyclictest13-21ksoftirqd/020:00:010
13428399264,8cyclictest13-21ksoftirqd/023:45:130
13428399264,8cyclictest13-21ksoftirqd/021:55:430
13428399261,7cyclictest182550-21diskmemload23:14:420
13428699252,16cyclictest146756-21apt-get19:40:101
13428699251,4cyclictest141rcu_preempt23:05:121
134286992514,2cyclictest26-21ksoftirqd/100:05:001
134286992510,3cyclictest26-21ksoftirqd/122:35:151
134286992510,3cyclictest26-21ksoftirqd/119:50:111
13428699250,6cyclictest168573-21apt-config20:35:021
13428699250,12cyclictest253689-21unin-run22:45:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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