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2026-01-10 - 22:38
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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 100 highest latencies:
System rack3slot6.osadl.org (updated Sat Jan 10, 2026 12:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
264239910067,19cyclictest0-21swapper/010:00:170
26430999853,25cyclictest26-21ksoftirqd/110:25:111
26423999872,13cyclictest14-21ksoftirqd/008:45:140
26423999872,13cyclictest14-21ksoftirqd/008:45:130
26423999777,11cyclictest14-21ksoftirqd/007:30:120
26423999773,10cyclictest14-21ksoftirqd/008:25:120
26423999771,13cyclictest14-21ksoftirqd/009:50:130
26423999670,15cyclictest14-21ksoftirqd/010:30:140
26423999574,13cyclictest0-21swapper/010:20:120
26423999469,12cyclictest14-21ksoftirqd/009:45:120
2465129420,19sleep10-21swapper/107:05:021
26430999252,21cyclictest26-21ksoftirqd/112:10:131
26430999219,20cyclictest0-21swapper/109:20:221
26430999219,20cyclictest0-21swapper/109:20:211
26423999264,16cyclictest14-21ksoftirqd/008:40:160
26423999263,18cyclictest14-21ksoftirqd/011:25:080
26423999166,13cyclictest14-21ksoftirqd/007:10:150
26423999164,18cyclictest14-21ksoftirqd/008:05:220
26423999164,16cyclictest14-21ksoftirqd/008:30:170
26423998867,12cyclictest14-21ksoftirqd/009:05:130
26423998759,19cyclictest14-21ksoftirqd/012:25:150
26430998647,20cyclictest26-21ksoftirqd/111:55:231
26430998644,25cyclictest26-21ksoftirqd/112:30:151
26423998661,17cyclictest14-21ksoftirqd/008:00:130
26423998660,17cyclictest14-21ksoftirqd/011:45:110
26423998658,17cyclictest14-21ksoftirqd/007:50:150
2522328634,36sleep00-21swapper/007:05:230
26423998557,18cyclictest14-21ksoftirqd/011:15:150
26423998557,16cyclictest14-21ksoftirqd/011:35:140
26423997953,16cyclictest14-21ksoftirqd/008:10:110
26423997950,19cyclictest14-21ksoftirqd/008:15:130
26423997852,17cyclictest14-21ksoftirqd/008:20:120
26423997746,24cyclictest14-21ksoftirqd/008:55:110
26423997548,21cyclictest448-21dbus-daemon07:40:140
26423997542,23cyclictest14-21ksoftirqd/010:55:140
26423997541,22cyclictest14-21ksoftirqd/011:50:110
26423997444,20cyclictest14-21ksoftirqd/010:15:230
26423997347,21cyclictest14-21ksoftirqd/011:30:140
26423997347,18cyclictest14-21ksoftirqd/009:55:110
26423997342,19cyclictest0-21swapper/010:40:150
2643099729,45cyclictest0-21swapper/110:55:121
26423997244,18cyclictest14-21ksoftirqd/010:45:150
26423997243,16cyclictest0-21swapper/012:20:120
26423997145,20cyclictest14-21ksoftirqd/010:50:120
26423997142,17cyclictest0-21swapper/010:10:250
26423997112,53cyclictest0-21swapper/011:55:230
2643099697,45cyclictest0-21swapper/111:05:131
26423996934,28cyclictest14-21ksoftirqd/012:15:250
268822680,3sleep1251rcuc/110:10:281
26423996837,10cyclictest14-21ksoftirqd/009:20:130
26423996837,10cyclictest14-21ksoftirqd/009:20:120
26423996831,27cyclictest14-21ksoftirqd/011:20:130
26423996827,33cyclictest4875-21aten2.4-expect12:10:170
26430996723,38cyclictest0-21swapper/107:50:321
26423996736,20cyclictest14-21ksoftirqd/011:40:140
26423996722,20cyclictest250-21systemd-journal07:22:430
26423996623,35cyclictest3023-21aten2.4-expect12:05:150
26423996537,19cyclictest0-21swapper/009:00:120
26423996536,19cyclictest0-21swapper/009:40:130
26423996536,19cyclictest0-21swapper/009:40:120
26423996536,18cyclictest0-21swapper/007:45:110
2642399653,55cyclictest13715-21/usr/sbin/munin12:35:190
26423996532,24cyclictest14-21ksoftirqd/012:00:120
26423996531,22cyclictest14-21ksoftirqd/008:35:130
26423996436,20cyclictest14-21ksoftirqd/007:15:160
26423996435,24cyclictest14-21ksoftirqd/011:00:140
26423996435,24cyclictest14-21ksoftirqd/011:00:130
26423996421,35cyclictest3654-21aten2.4-expect10:35:190
2643099636,11cyclictest0-21swapper/110:05:131
2642399639,42cyclictest500-21snmpd10:05:110
26423996341,14cyclictest171rcuc/009:15:160
26423996333,18cyclictest0-21swapper/008:50:120
26423996321,34cyclictest32655-21aten2.4-expect07:25:170
26423996321,34cyclictest32655-21aten2.4-expect07:25:170
25072630,6chrt0-21swapper/107:30:291
2642399629,40cyclictest4983-21taskset09:10:120
26423996239,15cyclictest1319-21awk10:30:010
26423996231,26cyclictest10658-21telnet09:25:170
26423996230,22cyclictest448-21dbus-daemon12:34:590
26423996223,14cyclictest250-21systemd-journal09:33:080
26423996132,19cyclictest0-21swapper/011:10:110
26423996119,34cyclictest3706-21aten2.4-expect07:35:160
26430996022,26cyclictest26-21ksoftirqd/112:00:091
26423996028,24cyclictest14-21ksoftirqd/009:35:110
26423996013,38cyclictest0-21swapper/007:55:100
26423995933,9cyclictest14-21ksoftirqd/011:05:370
26430995822,22cyclictest0-21swapper/112:35:121
26430995640,12cyclictest26-21ksoftirqd/108:00:011
26430995640,10cyclictest26-21ksoftirqd/107:25:261
26430995640,10cyclictest26-21ksoftirqd/107:25:251
26430995639,10cyclictest26-21ksoftirqd/108:45:211
26430995639,10cyclictest26-21ksoftirqd/108:45:201
26430995622,21cyclictest26-21ksoftirqd/109:30:121
26430995538,9cyclictest26-21ksoftirqd/108:55:011
26430995538,10cyclictest26-21ksoftirqd/110:50:001
26430995534,17cyclictest26414-21cyclictest08:00:311
26430995520,30cyclictest17814-21tr09:45:181
26430995437,10cyclictest26-21ksoftirqd/112:25:011
26430995426,15cyclictest26-21ksoftirqd/107:40:011
26430995336,10cyclictest26-21ksoftirqd/108:28:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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