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2026-04-27 - 12:34
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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 Mon Apr 27, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17422862295253,26sleep10-21swapper/119:08:551
17423002261186,60sleep00-21swapper/019:09:040
18860472610,4sleep10-21swapper/123:11:101
18444402600,3sleep0161rcuc/022:17:050
17841282580,4sleep01784126-21seq20:50:160
179699570,4rtkit-daemon1795-21rtkit-daemon00:37:450
179699550,4rtkit-daemon1795-21rtkit-daemon23:34:051
19368732520,4sleep00-21swapper/000:19:230
179699480,4rtkit-daemon1795-21rtkit-daemon20:29:261
179699470,4rtkit-daemon1795-21rtkit-daemon22:47:190
179699470,3rtkit-daemon1795-21rtkit-daemon20:11:181
179699470,3rtkit-daemon1795-21rtkit-daemon19:52:261
179699460,3rtkit-daemon1795-21rtkit-daemon00:31:491
18071642440,4sleep0161rcuc/021:28:470
174263299420,39cyclictest1851073-21ntp_states22:25:221
18817022400,4chrt0-21swapper/023:05:250
179699400,4rtkit-daemon1791591-21diskmemload23:26:211
179699390,5rtkit-daemon1791591-21diskmemload23:57:561
179699390,4rtkit-daemon1795-21rtkit-daemon20:10:011
179699390,3rtkit-daemon0-21swapper/020:43:060
179699380,3rtkit-daemon0-21swapper/022:54:590
179699370,3rtkit-daemon0-21swapper/022:36:450
179699370,3rtkit-daemon0-21swapper/019:36:070
179699360,3rtkit-daemon0-21swapper/121:54:251
179699360,3rtkit-daemon0-21swapper/100:24:361
179699350,5rtkit-daemon1743654-21cat19:10:181
179699350,3rtkit-daemon0-21swapper/123:45:561
179699340,4rtkit-daemon1795-21rtkit-daemon23:21:291
179699340,4rtkit-daemon1795-21rtkit-daemon21:18:460
179699340,4rtkit-daemon1795-21rtkit-daemon00:22:140
179699340,4rtkit-daemon0-21swapper/119:24:550
179699340,3rtkit-daemon0-21swapper/121:57:430
179699340,3rtkit-daemon0-21swapper/120:01:170
179699340,3rtkit-daemon0-21swapper/119:55:471
179699340,3rtkit-daemon0-21swapper/119:43:131
179699340,3rtkit-daemon0-21swapper/119:29:291
179699340,3rtkit-daemon0-21swapper/119:29:281
179699340,3rtkit-daemon0-21swapper/100:26:251
179699340,3rtkit-daemon0-21swapper/100:01:321
179699340,3rtkit-daemon0-21swapper/021:33:361
179699330,5rtkit-daemon1791591-21diskmemload21:46:370
179699330,3rtkit-daemon1795-21rtkit-daemon23:44:431
179699330,3rtkit-daemon1795-21rtkit-daemon23:37:481
179699330,3rtkit-daemon1795-21rtkit-daemon22:31:200
179699330,3rtkit-daemon0-21swapper/123:07:491
179699330,3rtkit-daemon0-21swapper/121:51:290
179699330,3rtkit-daemon0-21swapper/022:33:571
1742626993310,4cyclictest13-21ksoftirqd/021:20:140
179699320,3rtkit-daemon0-21swapper/123:36:530
179699320,3rtkit-daemon0-21swapper/119:54:040
179699320,3rtkit-daemon0-21swapper/119:11:430
179699310,3rtkit-daemon1795-21rtkit-daemon22:19:321
179699310,3rtkit-daemon1795-21rtkit-daemon19:45:331
179699310,3rtkit-daemon1795-21rtkit-daemon19:23:591
179699310,3rtkit-daemon0-21swapper/123:51:070
179699310,3rtkit-daemon0-21swapper/022:40:291
174263299317,7cyclictest1849761-21latency_hist22:25:011
179699300,4rtkit-daemon1795-21rtkit-daemon22:52:471
179699300,3rtkit-daemon1795-21rtkit-daemon20:15:051
179699300,3rtkit-daemon1795-21rtkit-daemon20:01:111
179699300,3rtkit-daemon1795-21rtkit-daemon00:31:080
179699300,3rtkit-daemon0-21swapper/121:00:240
174262699309,4cyclictest13-21ksoftirqd/022:05:130
174262699307,3cyclictest13-21ksoftirqd/023:25:140
174262699306,4cyclictest1792274-21apt-get21:10:130
1742626993026,3cyclictest445400-1kworker/0:1H20:11:090
1742626993011,3cyclictest13-21ksoftirqd/000:04:210
19100962290,23sleep01791591-21diskmemload23:44:130
179699290,3rtkit-daemon1795-21rtkit-daemon20:20:541
179699290,3rtkit-daemon0-21swapper/123:48:000
179699290,3rtkit-daemon0-21swapper/120:30:220
179699290,3rtkit-daemon0-21swapper/120:20:070
179699290,3rtkit-daemon0-21swapper/119:40:450
179699290,3rtkit-daemon0-21swapper/119:19:510
179699290,3rtkit-daemon0-21swapper/022:58:361
179699290,3rtkit-daemon0-21swapper/021:23:001
179699290,3rtkit-daemon0-21swapper/000:18:331
174262699298,3cyclictest13-21ksoftirqd/022:55:140
174262699296,4cyclictest13-21ksoftirqd/023:15:140
1742626992914,4cyclictest13-21ksoftirqd/023:35:010
179699280,3rtkit-daemon0-21swapper/121:41:560
179699280,3rtkit-daemon0-21swapper/120:27:070
179699280,3rtkit-daemon0-21swapper/119:57:520
179699280,3rtkit-daemon0-21swapper/119:45:460
179699280,3rtkit-daemon0-21swapper/119:30:040
174262699288,5cyclictest13-21ksoftirqd/023:20:320
1742626992811,4cyclictest13-21ksoftirqd/000:05:140
179699270,3rtkit-daemon0-21swapper/120:17:320
179699270,3rtkit-daemon0-21swapper/021:37:581
179699270,3rtkit-daemon0-21swapper/020:45:061
174262699279,3cyclictest13-21ksoftirqd/021:35:190
1742626992710,4cyclictest13-21ksoftirqd/023:55:210
179699260,3rtkit-daemon0-21swapper/021:03:041
179699260,1rtkit-daemon1795-21rtkit-daemon22:27:000
179699260,1rtkit-daemon1795-21rtkit-daemon22:03:451
1742632992616,6cyclictest1949439-21apt-get00:35:211
174263299260,6cyclictest0-21swapper/123:54:121
174263299260,6cyclictest0-21swapper/121:45:481
174263299260,6cyclictest0-21swapper/100:10:401
174262699269,4cyclictest13-21ksoftirqd/023:00:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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