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2026-06-02 - 22:29
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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 rackbslot7.osadl.org (updated Tue Jun 02, 2026 12:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
231009911439,9cyclictest0-21swapper/008:35:170
231009911243,60cyclictest28498-21latency_hist07:14:580
231009911243,60cyclictest28498-21latency_hist07:14:580
231009911240,7cyclictest0-21swapper/012:15:300
231009911236,8cyclictest0-21swapper/011:34:560
231009911140,8cyclictest0-21swapper/008:04:540
231009911140,8cyclictest0-21swapper/008:04:540
231009910938,8cyclictest0-21swapper/008:05:340
1346421090,6sleep30-21swapper/311:11:453
231009910840,8cyclictest0-21swapper/009:01:160
231009910836,8cyclictest0-21swapper/009:50:030
23100991082,41cyclictest31659-21apt-get09:55:050
23100991082,41cyclictest31659-21apt-get09:55:050
231009910738,8cyclictest0-21swapper/007:51:340
231009910738,8cyclictest0-21swapper/007:51:340
231009910645,55cyclictest297-21systemd-logind08:44:550
23104991052,61cyclictest32463-21apt-get10:50:161
231009910547,51cyclictest3751-21ssh11:50:150
231009910441,14cyclictest330-21sh10:50:370
231009910438,8cyclictest0-21swapper/008:34:550
231009910332,9cyclictest0-21swapper/012:29:560
231099910146,50cyclictest22750-21kworker/u18:1+events_unbound10:39:542
231009910143,53cyclictest23091-21cyclictest10:25:120
231009910143,11cyclictest5871-21ssh10:59:580
231009910136,8cyclictest0-21swapper/007:45:170
23100991013,27cyclictest14132-21ssh09:26:060
23100991013,27cyclictest14132-21ssh09:26:060
231009910039,12cyclictest16912-21switchtime08:15:300
231009910034,59cyclictest0-21swapper/012:05:120
231009910027,19cyclictest0-21swapper/010:30:180
23100999938,9cyclictest11052-21rm12:01:500
23100999931,12cyclictest0-21swapper/009:34:570
23100999926,20cyclictest0-21swapper/011:39:540
2310099992,23cyclictest20810-21head09:35:320
23104999848,44cyclictest1-21systemd09:01:151
23100999836,8cyclictest0-21swapper/011:19:180
23100999823,21cyclictest4155-21idleruntime-cro07:39:540
23100999740,9cyclictest7612-21sh09:15:080
2310099972,25cyclictest14113-21seq11:13:360
2310099972,21cyclictest28917-21latency_hist10:44:570
2310099972,21cyclictest24154-21latency_hist12:24:560
23100999717,24cyclictest9053-21sh11:05:110
23104999644,45cyclictest30534-21diskmemload10:00:451
2310099963,41cyclictest6648-21rm09:13:090
2310099963,36cyclictest11656-21fschecks_time10:15:170
23109999544,14cyclictest31191-21sh09:54:302
2310099953,25cyclictest352-21runrttasks08:48:110
2310099953,25cyclictest352-21runrttasks08:48:110
2310099952,40cyclictest26828-21rm09:45:380
2310099952,40cyclictest26828-21rm09:45:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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