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2026-06-18 - 10:45
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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 Thu Jun 18, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7592442266185,29sleep10-21swapper/119:08:141
7590662243201,27sleep00-21swapper/019:06:160
179699540,4rtkit-daemon1795-21rtkit-daemon21:50:211
8138152530,4chrt0-21swapper/021:15:270
179699510,3rtkit-daemon1795-21rtkit-daemon19:47:430
179699500,3rtkit-daemon1795-21rtkit-daemon19:40:530
179699500,3rtkit-daemon1795-21rtkit-daemon19:13:361
7982212480,4sleep00-21swapper/020:45:100
179699480,3rtkit-daemon1795-21rtkit-daemon23:58:010
8796522460,7sleep126-21ksoftirqd/122:45:171
179699460,3rtkit-daemon1795-21rtkit-daemon20:25:251
179699440,2rtkit-daemon1795-21rtkit-daemon20:15:331
179699380,3rtkit-daemon0-21swapper/022:15:450
179699380,3rtkit-daemon0-21swapper/022:03:500
179699370,5rtkit-daemon768-21irqbalance20:08:350
179699370,3rtkit-daemon0-21swapper/023:29:550
179699360,3rtkit-daemon0-21swapper/023:24:040
179699360,3rtkit-daemon0-21swapper/023:16:040
179699350,4rtkit-daemon1795-21rtkit-daemon22:29:131
179699350,4rtkit-daemon1795-21rtkit-daemon20:32:531
179699350,3rtkit-daemon0-21swapper/121:44:450
179699350,3rtkit-daemon0-21swapper/121:04:180
179699350,3rtkit-daemon0-21swapper/120:11:190
179699350,3rtkit-daemon0-21swapper/100:26:341
179699350,3rtkit-daemon0-21swapper/023:31:480
179699350,3rtkit-daemon0-21swapper/020:51:140
179699340,5rtkit-daemon937690-21date00:05:001
179699340,4rtkit-daemon1795-21rtkit-daemon23:37:490
179699340,4rtkit-daemon1795-21rtkit-daemon22:37:540
179699340,4rtkit-daemon1795-21rtkit-daemon21:36:150
179699340,4rtkit-daemon0-21swapper/021:35:241
179699340,3rtkit-daemon1795-21rtkit-daemon00:10:300
179699340,3rtkit-daemon0-21swapper/122:27:070
179699340,3rtkit-daemon0-21swapper/022:41:220
179699340,3rtkit-daemon0-21swapper/000:08:490
179699330,4rtkit-daemon1795-21rtkit-daemon22:33:080
179699330,4rtkit-daemon1795-21rtkit-daemon00:37:541
179699330,3rtkit-daemon1795-21rtkit-daemon22:57:101
179699330,3rtkit-daemon0-21swapper/120:25:380
179699330,3rtkit-daemon0-21swapper/100:36:530
179699330,3rtkit-daemon0-21swapper/100:31:401
179699320,4rtkit-daemon933437-21ssh23:58:301
179699320,4rtkit-daemon1795-21rtkit-daemon19:57:381
179699320,3rtkit-daemon1795-21rtkit-daemon00:17:501
179699310,6rtkit-daemon893-21snmpd23:47:581
179699310,4rtkit-daemon1795-21rtkit-daemon22:24:131
179699310,4rtkit-daemon1795-21rtkit-daemon20:21:380
179699310,3rtkit-daemon1795-21rtkit-daemon19:29:580
179699310,3rtkit-daemon0-21swapper/100:33:180
179699310,3rtkit-daemon0-21swapper/021:33:031
759570993012,11cyclictest857444-21apt-get22:15:131
179699300,7rtkit-daemon849857-21rm22:04:241
179699300,5rtkit-daemon893-21snmpd20:35:551
179699300,3rtkit-daemon1795-21rtkit-daemon23:15:151
179699300,3rtkit-daemon0-21swapper/100:19:030
179699300,3rtkit-daemon0-21swapper/023:24:541
179699300,17rtkit-daemon66950irq/132-enp2s022:32:131
759565992910,3cyclictest807911-21diskmemload21:47:480
179699290,3rtkit-daemon1795-21rtkit-daemon20:07:051
179699290,3rtkit-daemon0-21swapper/123:47:400
179699290,3rtkit-daemon0-21swapper/120:58:560
179699290,3rtkit-daemon0-21swapper/100:22:020
179699290,3rtkit-daemon0-21swapper/023:13:571
179699290,3rtkit-daemon0-21swapper/021:55:431
179699290,3rtkit-daemon0-21swapper/019:26:101
75956599287,2cyclictest141rcu_preempt20:15:220
75956599282,10cyclictest883136-21apt-get22:50:130
75956599280,2cyclictest141rcu_preempt23:05:240
179699280,5rtkit-daemon892-21thermald21:06:301
179699280,3rtkit-daemon0-21swapper/023:31:071
179699280,3rtkit-daemon0-21swapper/019:45:001
179699280,3rtkit-daemon0-21swapper/019:31:161
179699280,3rtkit-daemon0-21swapper/000:12:501
759570992723,2cyclictest886294-21chrt22:54:261
75956599276,4cyclictest13-21ksoftirqd/023:40:320
759565992714,7cyclictest796294-21apt-get20:40:130
759565992712,9cyclictest825992-1kworker/u9:221:55:110
759565992710,2cyclictest141rcu_preempt19:15:230
75956599270,8cyclictest855352-21taskset22:10:260
179699270,3rtkit-daemon1795-21rtkit-daemon00:05:161
179699270,3rtkit-daemon0-21swapper/020:21:451
179699270,21rtkit-daemon759560-21cyclictest22:24:390
179699270,16rtkit-daemon0-21swapper/019:24:350
75957099263,16cyclictest835726-21apt-get21:45:121
759570992623,2cyclictest66950irq/132-enp2s021:44:051
759570992622,2cyclictest66950irq/132-enp2s021:19:131
75957099260,6cyclictest0-21swapper/123:07:521
75957099260,6cyclictest0-21swapper/121:28:291
75956599268,5cyclictest13-21ksoftirqd/000:25:120
75956599267,4cyclictest13-21ksoftirqd/023:54:210
75956599263,15cyclictest794322-21apt-get20:35:120
759565992621,3cyclictest811930-21seq21:14:310
759565992610,2cyclictest141rcu_preempt19:35:210
179699260,3rtkit-daemon0-21swapper/023:38:111
179699260,3rtkit-daemon0-21swapper/020:47:361
75956599252,15cyclictest806057-21apt-get21:05:130
759565992519,3cyclictest13-21ksoftirqd/021:50:150
179699250,4rtkit-daemon1795-21rtkit-daemon23:01:190
179699250,21rtkit-daemon761618-21munin-node19:21:341
179699250,21rtkit-daemon1728-21kerneloops20:54:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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