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2026-05-24 - 01:43
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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 Sat May 23, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8540472317275,28sleep00-21swapper/007:07:540
8540472317275,28sleep00-21swapper/007:07:540
8539702288226,48sleep10-21swapper/107:07:041
8539702288226,48sleep10-21swapper/107:07:031
8683072600,6sleep00-21swapper/007:40:240
10455822590,3sleep00-21swapper/012:20:240
8749562580,5sleep0874945-21python308:00:010
8545642580,5sleep00-21swapper/007:10:130
179699530,4rtkit-daemon1795-21rtkit-daemon07:25:251
10014232520,3sleep11001425-21ntp_offset11:20:211
179699490,3rtkit-daemon0-21swapper/011:45:290
9365962460,2sleep10-21swapper/109:54:171
179699460,3rtkit-daemon0-21swapper/010:41:380
179699450,3rtkit-daemon0-21swapper/009:09:380
179699450,3rtkit-daemon0-21swapper/008:04:260
179699430,3rtkit-daemon0-21swapper/010:54:000
9897632420,1sleep0989762-21wc11:05:140
179699420,3rtkit-daemon0-21swapper/010:30:070
179699420,3rtkit-daemon0-21swapper/008:39:550
8564512410,1sleep00-21swapper/007:15:020
85434599400,38cyclictest903129-21diskmemload12:10:141
179699390,3rtkit-daemon0-21swapper/009:03:270
179699380,7rtkit-daemon1029916-21apt-get12:00:131
179699380,6rtkit-daemon1795-21rtkit-daemon09:35:130
179699380,3rtkit-daemon0-21swapper/008:58:400
9417182340,3sleep1854340-21cyclictest10:00:211
179699340,3rtkit-daemon1795-21rtkit-daemon11:18:181
85434299311,15cyclictest903129-21diskmemload09:13:340
85434299308,8cyclictest13-21ksoftirqd/008:30:010
179699300,3rtkit-daemon0-21swapper/011:40:020
8589092290,10sleep126-21ksoftirqd/107:20:001
854345992910,17cyclictest66950irq/132-enp2s010:55:151
854342992923,4cyclictest913089-21seq09:21:410
179699290,6rtkit-daemon946173-21rm10:05:411
179699290,4rtkit-daemon1795-21rtkit-daemon08:54:331
179699290,1rtkit-daemon1795-21rtkit-daemon12:06:311
179699290,1rtkit-daemon1795-21rtkit-daemon08:06:130
85434599283,5cyclictest261ksoftirqd/110:49:241
85434299289,8cyclictest13-21ksoftirqd/011:58:200
85434299287,11cyclictest0-21swapper/011:36:050
85434299284,8cyclictest13-21ksoftirqd/010:25:230
85434299281,6cyclictest948791-21cat10:10:180
854342992815,5cyclictest13-21ksoftirqd/012:02:470
85434299281,14cyclictest903129-21diskmemload11:33:340
85434299281,14cyclictest903129-21diskmemload09:53:500
85434599276,2cyclictest141rcu_preempt09:25:001
854345992724,2cyclictest66950irq/132-enp2s012:18:171
854345992724,2cyclictest66950irq/132-enp2s008:25:211
85434599272,18cyclictest978134-21apt-get10:50:141
854345992713,9cyclictest867306-21apt-get07:40:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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