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2026-07-04 - 07:23
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack1slot8.osadl.org (updated Sat Jul 04, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18895999384,8cyclictest0-21swapper/019:10:250
18896999024,881cyclictest0-21swapper/119:10:251
187252602578,16sleep00-21swapper/019:08:370
1889599398321,53cyclictest0-21swapper/020:37:190
1889699397318,46cyclictest0-21swapper/120:37:201
187832172151,15sleep10-21swapper/119:09:161
4762970,3sleep0478-21grep23:10:150
179432920,3sleep017942-21timerwakeupswit23:40:250
18895997252,14cyclictest0-21swapper/023:55:480
1889599712,54cyclictest26324-21latency_hist21:00:010
18895997117,48cyclictest88850irq/46-eth0-tx-00:05:440
1889599703,57cyclictest5607-21idleruntime-cro23:20:000
1889599703,34cyclictest6528-21ssh21:25:130
18895997021,43cyclictest88850irq/46-eth0-tx-22:52:160
18895997017,47cyclictest88850irq/46-eth0-tx-22:57:320
1889599694,58cyclictest17155-21ssh21:44:170
18895996917,45cyclictest88850irq/46-eth0-tx-00:28:290
18895996913,50cyclictest0-21swapper/022:09:470
1889599683,58cyclictest6572-21idleruntime-cro00:20:010
18895996821,41cyclictest88850irq/46-eth0-tx-23:04:230
18895996819,43cyclictest88850irq/46-eth0-tx-21:17:250
18895996813,49cyclictest88850irq/46-eth0-tx-22:49:590
1889599673,57cyclictest15615-21munin-node20:30:190
18895996717,44cyclictest88850irq/46-eth0-tx-21:49:150
18895996716,45cyclictest88850irq/46-eth0-tx-22:38:390
18895996715,26cyclictest9535-21ssh21:30:150
18895996713,48cyclictest88850irq/46-eth0-tx-21:57:310
18895996645,16cyclictest0-21swapper/021:14:100
1889599664,34cyclictest15640-21ssh00:35:180
18895996621,31cyclictest88850irq/46-eth0-tx-23:45:060
18895996618,42cyclictest88850irq/46-eth0-tx-23:09:270
18895996616,45cyclictest88850irq/46-eth0-tx-22:13:210
1889599654,56cyclictest1095-21munin-node19:50:150
1889599654,54cyclictest11145-21idleruntime-cro23:30:020
1889599654,33cyclictest29915-21diskmemload22:15:240
18895996528,31cyclictest88850irq/46-eth0-tx-00:20:160
1889599652,56cyclictest13815-21runrttasks00:31:190
18895996519,32cyclictest88850irq/46-eth0-tx-23:30:060
18895996516,40cyclictest0-21swapper/021:05:130
18895996514,43cyclictest0-21swapper/022:00:130
18895996443,16cyclictest0-21swapper/023:37:160
18895996429,29cyclictest88850irq/46-eth0-tx-22:40:150
18895996426,32cyclictest88850irq/46-eth0-tx-22:30:130
1889599642,56cyclictest8997-21ssh22:26:220
18895996413,45cyclictest24295-21latency_hist19:25:020
18895996344,14cyclictest0-21swapper/021:22:570
18895996343,15cyclictest0-21swapper/021:52:340
18895996342,16cyclictest0-21swapper/023:51:360
1889599634,53cyclictest26251-21munin-node19:30:190
1889599633,37cyclictest8250-21crond20:10:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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