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2026-07-06 - 06:57
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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 Mon Jul 06, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12592132260188,56sleep00-21swapper/019:08:270
12590202251192,44sleep10-21swapper/119:06:211
138145921110,4sleep01381458-21idleruntime-cro22:45:000
179699730,4rtkit-daemon1795-21rtkit-daemon21:52:371
125950999590,1cyclictest0-21swapper/121:15:111
125950999533,7cyclictest1408543-21apt-get23:20:151
179699520,4rtkit-daemon1795-21rtkit-daemon22:41:321
179699510,4rtkit-daemon1795-21rtkit-daemon23:08:130
179699510,3rtkit-daemon1795-21rtkit-daemon23:32:011
179699510,3rtkit-daemon1795-21rtkit-daemon21:41:011
125950999504,7cyclictest1419858-21apt-get23:35:141
179699480,3rtkit-daemon1795-21rtkit-daemon23:02:420
179699480,3rtkit-daemon1795-21rtkit-daemon21:29:011
12845272480,4sleep01284530-21hwlatdetect20:10:190
125950999481,11cyclictest1323264-21apt-get21:30:121
14393912470,1sleep11439394-21tr00:00:161
179699400,4rtkit-daemon1307335-21diskmemload00:35:241
1259497993911,5cyclictest13-21ksoftirqd/000:15:010
179699370,3rtkit-daemon0-21swapper/123:46:560
179699360,5rtkit-daemon1259638-21apt-get19:10:130
179699360,4rtkit-daemon1795-21rtkit-daemon19:49:240
179699360,3rtkit-daemon0-21swapper/120:24:421
125950999361,16cyclictest1308184-21irqstats21:10:181
125949799367,3cyclictest141rcu_preempt23:15:120
125949799366,4cyclictest13-21ksoftirqd/020:40:010
179699350,3rtkit-daemon0-21swapper/121:52:490
125950999354,8cyclictest1457471-21apt-get00:25:151
125950999353,9cyclictest1461205-21apt-get00:30:111
125950999353,7cyclictest1284083-21apt-get20:10:141
125950999352,9cyclictest1358505-21apt-get22:15:131
125950999352,11cyclictest1423860-21apt-get23:40:151
125949799355,9cyclictest1413443-21ssh23:25:240
179699340,3rtkit-daemon1795-21rtkit-daemon22:28:321
179699340,3rtkit-daemon0-21swapper/121:02:290
179699340,3rtkit-daemon0-21swapper/100:24:101
179699340,3rtkit-daemon0-21swapper/023:13:361
125950999343,9cyclictest1259638-21apt-get19:10:111
1259509993427,6cyclictest66950irq/132-enp2s021:24:001
1259497993420,2cyclictest1438527-21ssh23:59:430
125949799341,7cyclictest1389380-21apt-get22:55:130
179699330,4rtkit-daemon1795-21rtkit-daemon20:48:460
179699330,4rtkit-daemon0-21swapper/120:19:280
179699330,3rtkit-daemon1795-21rtkit-daemon22:14:521
179699330,3rtkit-daemon0-21swapper/122:22:590
179699330,3rtkit-daemon0-21swapper/122:17:520
179699330,3rtkit-daemon0-21swapper/100:33:180
179699330,3rtkit-daemon0-21swapper/022:50:051
179699330,3rtkit-daemon0-21swapper/020:40:401
125950999332,13cyclictest1347144-21apt-get22:00:151
125950999330,3cyclictest1-21systemd21:55:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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