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2026-05-09 - 04:30
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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 Sat May 09, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35333312314270,29sleep00-21swapper/019:09:430
35332032273210,47sleep10-21swapper/119:08:211
179699660,4rtkit-daemon1795-21rtkit-daemon20:16:040
37231832630,4sleep03723182-21date00:20:010
36125472620,5sleep00-21swapper/021:50:000
179699520,4rtkit-daemon1795-21rtkit-daemon22:25:141
179699510,4rtkit-daemon1795-21rtkit-daemon23:02:400
179699500,3rtkit-daemon1795-21rtkit-daemon23:05:230
179699490,4rtkit-daemon1795-21rtkit-daemon23:51:541
179699490,4rtkit-daemon1795-21rtkit-daemon20:22:001
179699490,3rtkit-daemon1795-21rtkit-daemon21:21:241
179699470,3rtkit-daemon1795-21rtkit-daemon22:01:261
36798462460,30sleep03679870-21apt-get23:20:100
179699390,3rtkit-daemon0-21swapper/122:47:081
179699380,6rtkit-daemon3605406-21df21:40:140
179699380,3rtkit-daemon0-21swapper/123:11:011
179699370,4rtkit-daemon1795-21rtkit-daemon21:28:571
179699360,3rtkit-daemon0-21swapper/122:53:481
179699360,3rtkit-daemon0-21swapper/100:07:091
179699360,3rtkit-daemon0-21swapper/100:04:131
179699350,4rtkit-daemon1795-21rtkit-daemon00:15:101
179699350,4rtkit-daemon1795-21rtkit-daemon00:02:150
179699350,3rtkit-daemon0-21swapper/121:55:281
179699350,3rtkit-daemon0-21swapper/023:06:351
179699340,5rtkit-daemon3620595-21cstates22:00:140
179699340,4rtkit-daemon1795-21rtkit-daemon22:58:250
179699340,4rtkit-daemon1795-21rtkit-daemon22:19:381
179699340,4rtkit-daemon1795-21rtkit-daemon21:18:041
179699340,4rtkit-daemon1795-21rtkit-daemon20:46:201
179699340,3rtkit-daemon1795-21rtkit-daemon22:14:591
179699340,3rtkit-daemon0-21swapper/123:46:280
179699340,3rtkit-daemon0-21swapper/122:06:060
179699340,3rtkit-daemon0-21swapper/121:29:240
179699340,3rtkit-daemon0-21swapper/121:02:350
179699340,3rtkit-daemon0-21swapper/121:02:340
179699340,3rtkit-daemon0-21swapper/100:37:091
179699340,3rtkit-daemon0-21swapper/000:08:570
179699330,4rtkit-daemon1795-21rtkit-daemon20:32:591
179699330,4rtkit-daemon1795-21rtkit-daemon20:29:421
179699330,4rtkit-daemon1795-21rtkit-daemon19:17:381
179699330,4rtkit-daemon0-21swapper/122:11:260
179699330,3rtkit-daemon0-21swapper/123:13:210
179699330,3rtkit-daemon0-21swapper/121:13:010
179699330,3rtkit-daemon0-21swapper/119:17:100
179699320,3rtkit-daemon1795-21rtkit-daemon21:05:021
179699320,3rtkit-daemon0-21swapper/123:52:360
179699320,3rtkit-daemon0-21swapper/122:20:060
179699320,3rtkit-daemon0-21swapper/122:15:040
179699320,3rtkit-daemon0-21swapper/121:15:470
179699320,3rtkit-daemon0-21swapper/120:56:391
179699320,3rtkit-daemon0-21swapper/120:22:140
3533504993111,4cyclictest26-21ksoftirqd/123:22:101
179699310,4rtkit-daemon893-21snmpd20:18:591
179699310,4rtkit-daemon1795-21rtkit-daemon19:56:480
179699310,4rtkit-daemon1795-21rtkit-daemon19:48:150
179699310,3rtkit-daemon0-21swapper/122:31:050
179699310,3rtkit-daemon0-21swapper/100:32:190
179699310,3rtkit-daemon0-21swapper/021:50:261
179699310,3rtkit-daemon0-21swapper/019:41:181
179699310,3rtkit-daemon0-21swapper/019:36:361
179699300,3rtkit-daemon0-21swapper/123:28:450
179699300,3rtkit-daemon0-21swapper/122:53:050
179699300,3rtkit-daemon0-21swapper/121:58:230
179699300,3rtkit-daemon0-21swapper/120:59:010
3533504992920,5cyclictest3691042-21apt-get23:35:111
3533504992912,2cyclictest141rcu_preempt21:46:411
179699290,3rtkit-daemon0-21swapper/100:10:290
179699290,3rtkit-daemon0-21swapper/019:49:501
3533502992824,2cyclictest37360612sleep000:35:260
179699280,3rtkit-daemon1795-21rtkit-daemon20:07:120
179699280,3rtkit-daemon0-21swapper/122:26:170
179699280,3rtkit-daemon0-21swapper/121:09:030
179699280,3rtkit-daemon0-21swapper/120:32:370
179699280,3rtkit-daemon0-21swapper/100:20:280
179699280,3rtkit-daemon0-21swapper/020:51:471
179699280,1rtkit-daemon1795-21rtkit-daemon23:25:121
179699270,3rtkit-daemon0-21swapper/120:43:150
179699270,3rtkit-daemon0-21swapper/100:26:320
179699270,1rtkit-daemon1795-21rtkit-daemon22:30:521
353350499269,3cyclictest26-21ksoftirqd/122:44:181
3533504992611,3cyclictest26-21ksoftirqd/122:39:171
353350499260,6cyclictest0-21swapper/121:42:581
353350299269,11cyclictest3533623-21apt-get19:10:140
353350299263,15cyclictest3601218-21apt-get21:35:110
179699260,3rtkit-daemon0-21swapper/123:30:590
179699260,20rtkit-daemon3533496-21cyclictest19:21:180
179699260,1rtkit-daemon1795-21rtkit-daemon19:44:580
3533504992512,7cyclictest3558477-21apt-get20:10:111
3533504992511,4cyclictest26-21ksoftirqd/123:43:381
353350499250,6cyclictest0-21swapper/119:28:241
179699250,20rtkit-daemon3676020-21ssh23:15:080
179699250,20rtkit-daemon3533496-21cyclictest22:49:300
179699250,1rtkit-daemon1795-21rtkit-daemon19:38:250
179699250,1rtkit-daemon1795-21rtkit-daemon00:34:191
179699250,1rtkit-daemon1795-21rtkit-daemon00:10:351
179699250,16rtkit-daemon3676977-21ps23:15:211
35928532240,21sleep03592858-21ssh21:24:030
353350499241,6cyclictest3550079-21python319:50:021
353350499240,13cyclictest410794-21gdbus00:00:001
179699240,1rtkit-daemon1795-21rtkit-daemon20:36:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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