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2026-05-19 - 15:21
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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 Tue May 19, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3040902256184,27sleep00-21swapper/007:07:140
3040122245180,51sleep10-21swapper/107:06:261
34105021550,4sleep1341054-21idleruntime-cro08:40:001
3728072640,5sleep1372809-21grep09:35:171
3111362620,5sleep0161rcuc/007:25:140
179699570,4rtkit-daemon1795-21rtkit-daemon12:07:170
179699560,3rtkit-daemon1795-21rtkit-daemon07:30:190
179699500,4rtkit-daemon1795-21rtkit-daemon07:53:270
179699500,4rtkit-daemon1795-21rtkit-daemon07:19:430
179699490,4rtkit-daemon1795-21rtkit-daemon08:53:400
5076482480,3sleep00-21swapper/012:35:230
179699480,4rtkit-daemon1795-21rtkit-daemon07:39:420
4283792470,4sleep10-21swapper/110:49:331
3141402470,2sleep10-21swapper/107:30:191
179699450,3rtkit-daemon1795-21rtkit-daemon07:58:170
179699440,3rtkit-daemon1795-21rtkit-daemon10:33:001
179699430,3rtkit-daemon1795-21rtkit-daemon11:43:080
3866632410,5sleep10-21swapper/109:54:331
4419512400,5sleep0161rcuc/011:07:140
179699390,3rtkit-daemon0-21swapper/109:16:041
179699370,5rtkit-daemon1795-21rtkit-daemon08:00:130
179699370,3rtkit-daemon0-21swapper/109:50:240
179699370,3rtkit-daemon0-21swapper/108:24:171
179699370,3rtkit-daemon0-21swapper/010:56:250
304466993631,3cyclictest409693-21test10:25:031
179699360,5rtkit-daemon424526-21taskset10:44:211
179699360,4rtkit-daemon1795-21rtkit-daemon09:20:121
179699360,4rtkit-daemon1795-21rtkit-daemon07:20:190
179699360,3rtkit-daemon0-21swapper/007:48:380
179699360,3rtkit-daemon0-21swapper/007:40:051
179699350,5rtkit-daemon1795-21rtkit-daemon12:05:121
179699350,4rtkit-daemon1795-21rtkit-daemon10:36:311
179699350,3rtkit-daemon1795-21rtkit-daemon09:40:121
179699350,3rtkit-daemon0-21swapper/011:56:371
179699340,5rtkit-daemon1795-21rtkit-daemon12:17:240
179699340,3rtkit-daemon0-21swapper/111:33:271
179699340,3rtkit-daemon0-21swapper/110:44:350
179699340,3rtkit-daemon0-21swapper/008:14:140
179699330,4rtkit-daemon1795-21rtkit-daemon11:48:340
179699330,3rtkit-daemon1795-21rtkit-daemon11:03:270
179699330,3rtkit-daemon0-21swapper/111:32:460
179699330,3rtkit-daemon0-21swapper/108:29:550
179699330,3rtkit-daemon0-21swapper/108:20:040
179699320,3rtkit-daemon1795-21rtkit-daemon11:54:220
179699320,3rtkit-daemon0-21swapper/109:16:260
179699320,3rtkit-daemon0-21swapper/008:57:341
179699310,4rtkit-daemon0-21swapper/007:22:201
179699310,3rtkit-daemon1795-21rtkit-daemon12:02:120
179699310,3rtkit-daemon1795-21rtkit-daemon09:48:171
179699310,3rtkit-daemon0-21swapper/110:28:290
179699310,3rtkit-daemon0-21swapper/109:57:570
179699310,3rtkit-daemon0-21swapper/007:39:471
304466993010,18cyclictest26-21ksoftirqd/112:05:001
179699300,4rtkit-daemon1795-21rtkit-daemon07:41:320
179699300,3rtkit-daemon0-21swapper/110:48:230
179699300,3rtkit-daemon0-21swapper/110:36:390
179699300,3rtkit-daemon0-21swapper/008:50:021
179699300,3rtkit-daemon0-21swapper/008:03:001
304466992912,11cyclictest319755-21apt-get07:45:141
179699290,3rtkit-daemon0-21swapper/110:13:170
179699290,3rtkit-daemon0-21swapper/109:48:090
179699290,3rtkit-daemon0-21swapper/109:11:130
179699290,3rtkit-daemon0-21swapper/107:10:340
179699290,3rtkit-daemon0-21swapper/012:18:471
179699290,3rtkit-daemon0-21swapper/009:32:411
304462992811,11cyclictest331471-21apt-get08:15:150
179699280,3rtkit-daemon0-21swapper/110:24:530
179699280,3rtkit-daemon0-21swapper/010:56:331
179699280,3rtkit-daemon0-21swapper/008:48:341
30446699271,9cyclictest4408292tr11:05:261
30446699270,6cyclictest0-21swapper/112:31:231
179699270,4rtkit-daemon1795-21rtkit-daemon11:14:401
179699270,23rtkit-daemon893-21snmpd12:20:030
179699270,21rtkit-daemon304456-21cyclictest09:25:050
179699270,1rtkit-daemon1795-21rtkit-daemon11:35:221
304466992611,9cyclictest415698-1kworker/u9:211:20:131
304466992610,10cyclictest487616-1kworker/u9:112:10:151
304466992610,10cyclictest355404-1kworker/u9:009:55:141
30446699260,6cyclictest0-21swapper/108:07:421
304462992622,3cyclictest66950irq/132-enp2s010:18:030
304462992622,2cyclictest66950irq/132-enp2s009:20:300
179699260,1rtkit-daemon1795-21rtkit-daemon11:15:530
179699260,1rtkit-daemon1795-21rtkit-daemon10:20:211
179699260,1rtkit-daemon1795-21rtkit-daemon09:35:380
179699260,1rtkit-daemon1795-21rtkit-daemon07:11:151
179699260,17rtkit-daemon330032-21irqstats08:10:201
30446699253,14cyclictest469764-21apt-get11:45:121
304466992510,10cyclictest393433-1kworker/u9:010:10:101
30446299253,15cyclictest347528-21apt-get08:55:160
179699250,1rtkit-daemon1795-21rtkit-daemon12:39:331
179699250,1rtkit-daemon1795-21rtkit-daemon11:28:291
179699250,1rtkit-daemon1795-21rtkit-daemon09:27:001
30446699242,15cyclictest436107-21apt-get11:00:131
304466992415,7cyclictest405289-21systemctl10:20:001
304466992411,8cyclictest487616-1kworker/u9:112:25:131
30446299243,7cyclictest339301-21apt-get08:35:130
30446299242,16cyclictest454818-21apt-get11:25:140
304462992413,6cyclictest66950irq/132-enp2s009:30:140
179699240,1rtkit-daemon1795-21rtkit-daemon08:29:271
179699240,18rtkit-daemon1795-21rtkit-daemon09:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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