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2026-05-17 - 13:55
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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 Sun May 17, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
47144323730,30sleep10-21swapper/119:05:291
4718522237194,29sleep00-21swapper/019:06:230
6109712710,3chrt0-21swapper/023:10:150
179699590,4rtkit-daemon1795-21rtkit-daemon19:15:471
179699550,3rtkit-daemon1795-21rtkit-daemon21:18:300
179699520,4rtkit-daemon1795-21rtkit-daemon21:56:150
179699520,4rtkit-daemon1795-21rtkit-daemon21:56:140
179699500,4rtkit-daemon1795-21rtkit-daemon21:07:190
179699500,4rtkit-daemon1795-21rtkit-daemon19:40:141
179699480,3rtkit-daemon1795-21rtkit-daemon23:36:231
472343994614,8cyclictest26-21ksoftirqd/121:15:011
179699400,3rtkit-daemon0-21swapper/000:14:120
47234399399,8cyclictest26-21ksoftirqd/119:35:011
47234399382,15cyclictest26-21ksoftirqd/123:15:271
47234099388,5cyclictest13-21ksoftirqd/023:50:000
179699380,3rtkit-daemon1795-21rtkit-daemon21:40:190
179699380,3rtkit-daemon0-21swapper/022:50:080
179699380,10rtkit-daemon631253-21ssh23:37:160
179699370,3rtkit-daemon0-21swapper/122:02:201
47234099360,4cyclictest13-21ksoftirqd/022:25:010
179699360,3rtkit-daemon0-21swapper/123:03:111
179699360,3rtkit-daemon0-21swapper/021:40:511
47234399350,9cyclictest489064-21kworker/1:020:05:011
47234399350,1cyclictest0-21swapper/120:45:171
179699350,4rtkit-daemon1795-21rtkit-daemon22:45:000
179699350,4rtkit-daemon1795-21rtkit-daemon21:33:100
179699350,3rtkit-daemon0-21swapper/119:44:070
179699350,3rtkit-daemon0-21swapper/100:32:551
472343993412,8cyclictest26-21ksoftirqd/100:25:001
179699340,4rtkit-daemon1795-21rtkit-daemon22:58:030
179699340,3rtkit-daemon0-21swapper/119:22:201
179699340,3rtkit-daemon0-21swapper/119:22:201
179699340,3rtkit-daemon0-21swapper/023:34:080
472343993330,2cyclictest592015-1kworker/1:1H22:50:061
472343993315,11cyclictest570198-21apt-get22:15:141
47234099331,4cyclictest13-21ksoftirqd/023:00:240
47234099330,8cyclictest497310-21apt-get20:10:110
179699330,4rtkit-daemon1795-21rtkit-daemon19:55:061
179699330,4rtkit-daemon1795-21rtkit-daemon19:50:580
179699330,3rtkit-daemon1795-21rtkit-daemon00:26:351
179699330,3rtkit-daemon0-21swapper/021:25:291
6360162320,3chrt0-21swapper/023:44:440
472343993215,11cyclictest519228-21apt-get21:05:141
472343993215,11cyclictest478908-21apt-get19:25:151
179699320,4rtkit-daemon1795-21rtkit-daemon23:53:050
179699320,4rtkit-daemon1795-21rtkit-daemon22:33:110
179699320,4rtkit-daemon1795-21rtkit-daemon20:05:430
179699320,4rtkit-daemon1795-21rtkit-daemon00:38:041
179699320,4rtkit-daemon1795-21rtkit-daemon00:11:071
179699320,3rtkit-daemon1795-21rtkit-daemon23:08:470
179699320,3rtkit-daemon0-21swapper/123:15:260
179699320,3rtkit-daemon0-21swapper/119:18:410
179699320,3rtkit-daemon0-21swapper/021:35:211
472343993120,8cyclictest26-21ksoftirqd/122:45:001
47234099313,3cyclictest141rcu_preempt22:15:000
47234099311,3cyclictest13-21ksoftirqd/020:05:010
179699310,4rtkit-daemon1795-21rtkit-daemon20:36:210
179699310,3rtkit-daemon1795-21rtkit-daemon22:19:230
179699310,3rtkit-daemon0-21swapper/119:14:590
179699310,3rtkit-daemon0-21swapper/100:26:430
472343993027,2cyclictest66950irq/132-enp2s023:34:421
47234099307,9cyclictest584959-21apt-get22:35:120
47234099307,6cyclictest13-21ksoftirqd/021:28:500
47234099306,9cyclictest560420-21vmstat22:00:270
47234099305,2cyclictest141rcu_preempt00:35:010
47234099304,5cyclictest488446-1kworker/0:0H20:20:260
47234099300,7cyclictest592213-21apt-get22:45:110
179699300,3rtkit-daemon0-21swapper/122:09:270
179699300,3rtkit-daemon0-21swapper/119:21:120
179699300,3rtkit-daemon0-21swapper/119:21:120
179699300,3rtkit-daemon0-21swapper/100:38:110
179699300,3rtkit-daemon0-21swapper/021:00:311
47234399293,8cyclictest26-21ksoftirqd/122:35:141
47234399292,6cyclictest26-21ksoftirqd/121:30:171
47234099293,4cyclictest13-21ksoftirqd/022:25:210
472340992912,2cyclictest141rcu_preempt21:11:270
179699290,4rtkit-daemon1795-21rtkit-daemon23:05:551
179699290,4rtkit-daemon1795-21rtkit-daemon20:42:061
179699290,3rtkit-daemon0-21swapper/023:23:221
179699290,3rtkit-daemon0-21swapper/022:56:581
47234399288,7cyclictest530412-21unixbench_multi21:20:241
47234399282,8cyclictest26-21ksoftirqd/120:20:171
47234399281,17cyclictest566659-21tr22:10:141
47234399280,7cyclictest637872-21mailstats23:45:241
47234399280,10cyclictest525202-21/usr/sbin/munin21:15:231
47234099286,6cyclictest13-21ksoftirqd/000:20:450
47234099281,7cyclictest512949-21apt-get20:50:120
472340992810,4cyclictest141rcu_preempt21:20:140
47234099280,8cyclictest13-21ksoftirqd/023:25:180
179699280,3rtkit-daemon1795-21rtkit-daemon00:01:441
179699280,3rtkit-daemon0-21swapper/119:35:060
179699280,3rtkit-daemon0-21swapper/119:34:070
179699280,3rtkit-daemon0-21swapper/100:06:500
179699280,23rtkit-daemon26-21ksoftirqd/100:10:011
47234099277,7cyclictest13-21ksoftirqd/021:53:040
47234099275,6cyclictest13-21ksoftirqd/020:15:450
47234099273,8cyclictest13-21ksoftirqd/000:00:160
47234099273,7cyclictest13-21ksoftirqd/023:55:210
47234099272,6cyclictest13-21ksoftirqd/023:20:240
472340992710,3cyclictest13-21ksoftirqd/000:16:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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