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2026-05-05 - 04:11
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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 Tue May 05, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
281002560536,17sleep10-21swapper/119:07:161
281452547525,15sleep00-21swapper/019:07:400
2841099503425,47cyclictest0-21swapper/119:10:501
2841099441387,40cyclictest0-21swapper/100:34:221
2840999429349,54cyclictest0-21swapper/019:10:490
2840999381307,38cyclictest24337-21ssh00:34:230
284099911014,49cyclictest25256-21ssh22:39:590
28410999813,56cyclictest0-21swapper/123:25:001
28410999511,53cyclictest0-21swapper/123:04:001
28409999314,61cyclictest0-21swapper/020:58:000
228699920,4rtkit-daemon2285-21rtkit-daemon21:47:121
228699900,4rtkit-daemon2285-21rtkit-daemon22:51:531
28410998420,35cyclictest0-21swapper/120:18:591
2840999834,56cyclictest11590-21ssh21:15:590
2840999834,56cyclictest11590-21ssh21:15:590
28409998114,50cyclictest0-21swapper/020:42:590
228699800,4rtkit-daemon2285-21rtkit-daemon21:57:360
228699780,4rtkit-daemon2285-21rtkit-daemon22:43:580
228699780,4rtkit-daemon2285-21rtkit-daemon22:43:570
228699780,4rtkit-daemon2285-21rtkit-daemon22:27:060
228699780,4rtkit-daemon2285-21rtkit-daemon00:35:290
228699780,4rtkit-daemon2285-21rtkit-daemon00:06:531
228699780,39rtkit-daemon2285-21rtkit-daemon22:19:571
228699780,12rtkit-daemon2285-21rtkit-daemon21:16:411
228699780,12rtkit-daemon2285-21rtkit-daemon21:16:401
228699770,4rtkit-daemon2285-21rtkit-daemon22:47:221
228699770,4rtkit-daemon2285-21rtkit-daemon22:17:310
228699770,4rtkit-daemon2285-21rtkit-daemon21:30:401
28409997611,56cyclictest0-21swapper/022:55:000
228699760,4rtkit-daemon2285-21rtkit-daemon23:14:431
228699760,4rtkit-daemon2285-21rtkit-daemon00:10:140
2840999758,53cyclictest0-21swapper/019:51:590
228699750,4rtkit-daemon2285-21rtkit-daemon19:20:190
228699750,37rtkit-daemon2285-21rtkit-daemon20:28:291
28410997415,45cyclictest0-21swapper/100:23:581
2840999742,66cyclictest29655-21grep23:45:150
228699740,4rtkit-daemon2285-21rtkit-daemon22:29:181
228699740,4rtkit-daemon2285-21rtkit-daemon20:45:151
228699740,4rtkit-daemon2285-21rtkit-daemon20:40:161
228699740,4rtkit-daemon2285-21rtkit-daemon00:08:530
28410997312,53cyclictest0-21swapper/121:09:001
2840999738,50cyclictest0-21swapper/020:31:590
2840999732,55cyclictest7122-21latency_hist21:10:020
228699730,5rtkit-daemon2285-21rtkit-daemon23:46:581
228699730,4rtkit-daemon2285-21rtkit-daemon23:06:371
228699730,4rtkit-daemon2285-21rtkit-daemon21:52:011
228699730,4rtkit-daemon2285-21rtkit-daemon21:10:511
228699730,4rtkit-daemon2285-21rtkit-daemon19:45:141
228699730,4rtkit-daemon2285-21rtkit-daemon00:00:140
228699730,35rtkit-daemon2285-21rtkit-daemon23:34:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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