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2025-12-31 - 04:46
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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 20 highest latencies:
System rackcslot4.osadl.org (updated Wed Dec 31, 2025 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40610312247186,47sleep10-21swapper/119:06:541
40610772239196,29sleep00-21swapper/019:07:250
412035921520,4sleep10-21swapper/121:22:191
179699650,4rtkit-daemon1795-21rtkit-daemon19:52:371
41687632580,12sleep0161rcuc/022:25:200
179699570,4rtkit-daemon1795-21rtkit-daemon20:03:271
179699530,4rtkit-daemon1795-21rtkit-daemon19:53:020
40882532510,5sleep04088258-21fschecks_time20:15:180
179699510,3rtkit-daemon1795-21rtkit-daemon21:32:180
179699500,4rtkit-daemon1795-21rtkit-daemon23:25:290
179699490,4rtkit-daemon1795-21rtkit-daemon21:35:590
179699490,4rtkit-daemon1795-21rtkit-daemon00:39:491
179699470,4rtkit-daemon1795-21rtkit-daemon23:52:520
179699460,3rtkit-daemon1795-21rtkit-daemon20:46:081
179699460,3rtkit-daemon1795-21rtkit-daemon20:33:281
4061453994513,9cyclictest26-21ksoftirqd/122:00:011
4061450994526,3cyclictest13-21ksoftirqd/022:13:110
506472440,1sleep050646-21apt00:05:130
4061453994112,8cyclictest26-21ksoftirqd/120:55:001
406145099390,8cyclictest13-21ksoftirqd/000:40:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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