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2026-05-06 - 12:21
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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 50 highest latencies:
System rackcslot4.osadl.org (updated Wed May 06, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20544532325281,28sleep00-21swapper/019:05:110
20558352269210,44sleep10-21swapper/119:06:041
225140021510,4sleep10-21swapper/100:25:151
22298552800,4sleep00-21swapper/023:54:180
179699620,4rtkit-daemon1795-21rtkit-daemon19:32:151
22149962610,5sleep12214997-21ssh23:35:011
21316132600,4chrt2131595-21python321:45:000
179699550,4rtkit-daemon1795-21rtkit-daemon22:53:540
22397832530,4sleep10-21swapper/100:06:271
179699530,4rtkit-daemon1795-21rtkit-daemon22:25:520
179699530,4rtkit-daemon1795-21rtkit-daemon21:13:110
179699530,22rtkit-daemon2056335-21cyclictest22:37:050
179699520,4rtkit-daemon1795-21rtkit-daemon23:36:121
179699520,21rtkit-daemon2141274-21ssh21:55:530
179699520,21rtkit-daemon2138753-21ssh21:53:240
179699510,4rtkit-daemon1795-21rtkit-daemon22:34:020
179699510,22rtkit-daemon2056335-21cyclictest23:06:290
179699510,22rtkit-daemon2056335-21cyclictest00:01:040
179699510,20rtkit-daemon2056335-21cyclictest23:57:010
179699500,4rtkit-daemon1795-21rtkit-daemon23:29:151
21741942480,4sleep00-21swapper/022:40:150
179699480,3rtkit-daemon1795-21rtkit-daemon23:16:000
179699480,3rtkit-daemon1795-21rtkit-daemon21:28:160
179699460,4rtkit-daemon1795-21rtkit-daemon20:48:571
179699460,21rtkit-daemon2157326-21ssh22:17:190
179699450,3rtkit-daemon1795-21rtkit-daemon20:36:180
21396432420,1sleep10-21swapper/121:55:031
179699420,3rtkit-daemon0-21swapper/100:37:071
179699380,3rtkit-daemon0-21swapper/020:10:500
179699370,4rtkit-daemon1795-21rtkit-daemon21:20:221
179699360,4rtkit-daemon2187183-21ssh22:56:590
179699360,4rtkit-daemon2056918-21hwlatdetect19:10:190
179699360,4rtkit-daemon1795-21rtkit-daemon23:45:200
179699360,3rtkit-daemon0-21swapper/022:14:090
179699360,3rtkit-daemon0-21swapper/019:38:390
179699350,4rtkit-daemon2057820-21chrt19:10:541
179699350,4rtkit-daemon1795-21rtkit-daemon00:14:000
2056345993415,13cyclictest2082882-21apt-get20:15:131
2056340993428,4cyclictest2096774-21chrt20:50:000
179699340,3rtkit-daemon0-21swapper/021:48:421
205634599332,8cyclictest2218875-21apt-get23:40:101
179699330,4rtkit-daemon1795-21rtkit-daemon21:16:531
179699330,4rtkit-daemon1795-21rtkit-daemon21:03:151
179699330,3rtkit-daemon0-21swapper/119:20:400
179699330,3rtkit-daemon0-21swapper/023:13:080
179699330,3rtkit-daemon0-21swapper/021:36:011
179699330,3rtkit-daemon0-21swapper/000:11:011
179699320,4rtkit-daemon1795-21rtkit-daemon23:37:090
179699320,3rtkit-daemon0-21swapper/121:09:530
179699320,3rtkit-daemon0-21swapper/019:55:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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