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2026-03-28 - 05:54
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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 rack5slot2.osadl.org (updated Sat Mar 28, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
126632201184,12sleep00-21swapper/019:06:220
127632196179,12sleep30-21swapper/319:07:423
129002194179,10sleep10-21swapper/119:09:281
126142184167,12sleep20-21swapper/219:05:482
43492480,0sleep10-21swapper/100:17:221
209972450,0sleep20-21swapper/223:21:342
34492440,0sleep00-21swapper/022:25:190
34492440,0sleep00-21swapper/022:25:190
189072440,0sleep10-21swapper/100:24:581
261392390,0sleep10-21swapper/100:12:011
134142110,0sleep30-21swapper/300:05:223
93402100,0sleep10-21swapper/123:31:501
101132100,0sleep10-21swapper/121:57:141
131329985,2cyclictest25140-21ssh23:40:103
131189970,7cyclictest0-21swapper/022:35:110
131279960,5cyclictest0-21swapper/220:10:112
131189960,6cyclictest0-21swapper/022:07:110
131189960,5cyclictest26487-21ssh00:12:140
131189960,5cyclictest0-21swapper/021:20:030
131189960,1cyclictest7969-21ssh22:43:590
131189960,1cyclictest20259-21perl00:25:140
131189960,1cyclictest14553-21kworker/u8:223:15:110
131189960,0cyclictest0-21swapper/000:35:140
131329955,0cyclictest19989-21kworker/3:000:34:393
131329955,0cyclictest0-21swapper/322:12:203
131329950,5cyclictest0-21swapper/323:58:073
131329950,5cyclictest0-21swapper/323:32:573
131329950,5cyclictest0-21swapper/321:30:073
131329950,4cyclictest8776-21diskmemload22:45:023
131329950,4cyclictest8407-21apt-get23:00:113
131329950,4cyclictest0-21swapper/321:20:113
131279954,1cyclictest0-21swapper/223:17:502
131279950,5cyclictest0-21swapper/223:10:172
131279950,5cyclictest0-21swapper/200:17:302
131279950,4cyclictest0-21swapper/219:30:132
131279950,0cyclictest0-21swapper/200:11:142
131239951,2cyclictest0-21swapper/122:20:121
131239951,2cyclictest0-21swapper/121:50:121
131239951,2cyclictest0-21swapper/119:40:121
131239950,5cyclictest0-21swapper/122:41:231
131189952,3cyclictest8702-21ssh21:40:230
131189952,3cyclictest0-21swapper/023:55:580
131189952,3cyclictest0-21swapper/023:07:470
131189952,3cyclictest0-21swapper/022:45:590
131189952,3cyclictest0-21swapper/021:45:350
131189952,3cyclictest0-21swapper/021:30:070
131189952,3cyclictest0-21swapper/021:19:230
131189952,3cyclictest0-21swapper/021:11:070
131189952,3cyclictest0-21swapper/000:34:500
131189951,4cyclictest0-21swapper/023:30:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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