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2025-09-18 - 15:26
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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 Thu Sep 18, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3180499823781,28cyclictest0-21swapper/109:39:541
3180399788712,65cyclictest28369-21ssh09:39:540
3180499449374,43cyclictest0-21swapper/107:11:491
3180399395326,42cyclictest0-21swapper/007:11:500
318039911796,15cyclictest0-21swapper/012:08:580
318039910782,19cyclictest0-21swapper/010:25:580
216899990,4rtkit-daemon2167-21rtkit-daemon10:32:271
31803999813,17cyclictest0-21swapper/011:47:590
216899980,4rtkit-daemon2167-21rtkit-daemon07:56:041
216899960,4rtkit-daemon2167-21rtkit-daemon12:00:081
216899960,4rtkit-daemon2167-21rtkit-daemon10:07:211
216899960,4rtkit-daemon2167-21rtkit-daemon09:17:301
216899960,4rtkit-daemon2167-21rtkit-daemon08:49:041
216899950,4rtkit-daemon2167-21rtkit-daemon11:18:171
216899950,4rtkit-daemon2167-21rtkit-daemon09:10:311
216899940,4rtkit-daemon2167-21rtkit-daemon11:41:391
216899940,4rtkit-daemon2167-21rtkit-daemon09:01:051
216899940,4rtkit-daemon2167-21rtkit-daemon09:01:051
216899920,4rtkit-daemon2167-21rtkit-daemon11:57:031
31803999170,15cyclictest0-21swapper/007:44:010
216899910,4rtkit-daemon2167-21rtkit-daemon11:28:121
216899910,4rtkit-daemon2167-21rtkit-daemon07:44:391
216899900,4rtkit-daemon2167-21rtkit-daemon09:41:261
216899900,3rtkit-daemon2167-21rtkit-daemon12:34:291
31803998862,20cyclictest0-21swapper/010:47:580
31803998812,58cyclictest0-21swapper/010:21:580
216899880,4rtkit-daemon2167-21rtkit-daemon10:46:121
3180399874,68cyclictest13308-21ssh09:15:000
216899870,4rtkit-daemon2167-21rtkit-daemon08:12:091
3180399866,17cyclictest0-21swapper/011:05:170
3180399845,16cyclictest0-21swapper/008:20:010
31803998359,10cyclictest1859-21sh09:50:000
216899830,8rtkit-daemon0-21swapper/110:41:021
216899820,4rtkit-daemon2167-21rtkit-daemon11:12:481
3180399815,18cyclictest0-21swapper/012:37:580
3180399815,16cyclictest0-21swapper/008:55:010
31803998117,57cyclictest78950irq/46-eth0-tx-10:07:340
216899800,9rtkit-daemon0-21swapper/109:54:271
3180399796,17cyclictest0-21swapper/010:50:210
31803997915,7cyclictest78950irq/46-eth0-tx-11:00:260
3180399786,17cyclictest0-21swapper/012:35:010
3180399786,17cyclictest0-21swapper/011:55:190
3180399785,64cyclictest0-21swapper/012:13:240
3180399785,17cyclictest0-21swapper/011:43:460
3180399785,14cyclictest0-21swapper/011:12:410
31803997848,24cyclictest0-21swapper/009:29:000
31803997812,55cyclictest0-21swapper/007:20:000
216899780,4rtkit-daemon2167-21rtkit-daemon09:58:160
3180399777,17cyclictest0-21swapper/010:18:200
3180399776,15cyclictest0-21swapper/008:35:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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