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2026-06-04 - 08:13
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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 Thu Jun 04, 2026 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
229429912297,11cyclictest14-21ksoftirqd/019:10:120
229429910778,16cyclictest14-21ksoftirqd/021:10:090
229429910677,18cyclictest14-21ksoftirqd/023:50:130
22447210619,39sleep00-21swapper/019:06:380
229429910479,14cyclictest14-21ksoftirqd/020:20:090
229429910477,15cyclictest14-21ksoftirqd/022:20:140
229429910477,15cyclictest14-21ksoftirqd/022:20:140
229429910372,20cyclictest14-21ksoftirqd/022:10:130
229429910273,16cyclictest14-21ksoftirqd/022:05:130
229429910272,19cyclictest14-21ksoftirqd/021:35:120
229429910270,21cyclictest14-21ksoftirqd/022:55:120
229429910171,20cyclictest14-21ksoftirqd/019:50:090
22942999970,17cyclictest14-21ksoftirqd/019:30:080
22942999970,17cyclictest14-21ksoftirqd/000:15:120
22942999869,20cyclictest14-21ksoftirqd/022:00:130
22942999566,20cyclictest14-21ksoftirqd/023:15:130
22942999358,19cyclictest14-21ksoftirqd/020:10:200
22942999358,19cyclictest14-21ksoftirqd/020:10:200
22942999258,20cyclictest14-21ksoftirqd/020:30:090
22942999159,20cyclictest14-21ksoftirqd/021:30:130
22942999111,69cyclictest0-21swapper/022:15:120
22942999110,71cyclictest0-21swapper/000:25:120
22942998758,18cyclictest14-21ksoftirqd/023:00:140
22942998712,34cyclictest0-21swapper/023:05:100
22942998650,26cyclictest14-21ksoftirqd/019:40:090
228082855,31sleep122811-21cron19:10:001
2294299849,60cyclictest562-21runrttasks20:40:100
22942998447,24cyclictest14-21ksoftirqd/000:30:130
22942998347,24cyclictest14-21ksoftirqd/023:55:130
22942998313,54cyclictest0-21swapper/023:20:120
2294299828,60cyclictest0-21swapper/019:20:080
22942998243,26cyclictest14-21ksoftirqd/021:20:230
22942998150,21cyclictest14-21ksoftirqd/022:25:110
22942998025,45cyclictest0-21swapper/000:00:090
22942998015,25cyclictest0-21swapper/022:30:120
22942997924,41cyclictest14-21ksoftirqd/000:05:130
22942997858,15cyclictest14-21ksoftirqd/000:35:320
22942997848,18cyclictest0-21swapper/023:30:110
22942997835,31cyclictest14-21ksoftirqd/023:45:120
22942997823,24cyclictest21397-21cat22:45:180
22942997821,43cyclictest14-21ksoftirqd/022:35:110
22942997821,43cyclictest14-21ksoftirqd/022:35:100
22942997740,25cyclictest14-21ksoftirqd/021:45:100
2294299758,23cyclictest30564-21sendmail19:40:010
2294299755,55cyclictest0-21swapper/023:25:130
2294299755,34cyclictest1-21systemd20:19:440
22942997530,32cyclictest14-21ksoftirqd/021:00:110
2294299749,53cyclictest0-21swapper/020:00:100
2294299748,54cyclictest0-21swapper/023:40:120
22942997440,25cyclictest14-21ksoftirqd/023:35:550
2294299739,51cyclictest0-21swapper/021:40:110
2294299739,51cyclictest0-21swapper/021:40:110
2294299739,51cyclictest0-21swapper/000:20:120
2294299736,20cyclictest0-21swapper/023:10:110
22942997310,52cyclictest0-21swapper/022:40:110
22942997310,52cyclictest0-21swapper/020:50:080
2294299717,50cyclictest0-21swapper/022:50:140
22942997138,22cyclictest0-21swapper/021:25:240
2294299708,48cyclictest0-21swapper/021:50:240
22942997011,47cyclictest0-21swapper/000:10:120
22946996940,11cyclictest503-21snmpd23:54:391
22946996923,28cyclictest0-21swapper/123:35:551
2294299698,49cyclictest0-21swapper/021:55:120
2294299698,49cyclictest0-21swapper/021:55:120
2294699665,44cyclictest20247-21diskmemload21:10:111
22946996622,30cyclictest26-21ksoftirqd/100:10:151
22946996428,14cyclictest26-21ksoftirqd/123:10:011
22946996333,17cyclictest26-21ksoftirqd/122:55:281
22942996313,21cyclictest20252-21basename21:10:000
22942996312,26cyclictest2896-21lockfile-create20:00:010
22942996312,22cyclictest5303-21turbostat20:10:000
22942996311,20cyclictest22619-21systemctl21:20:000
22942996310,30cyclictest243-21systemd-journal19:46:050
22946996237,20cyclictest26-21ksoftirqd/123:24:061
22946996234,22cyclictest26-21ksoftirqd/120:20:011
22946996214,28cyclictest0-21swapper/100:35:251
22942996219,18cyclictest28131-21latency_hist19:30:010
22946996114,29cyclictest0-21swapper/121:50:231
2294299619,26cyclictest12761-21sh20:40:000
22942996110,19cyclictest243-21systemd-journal19:20:000
22946996040,12cyclictest26-21ksoftirqd/120:50:251
22946996034,9cyclictest26-21ksoftirqd/121:20:261
22946996031,14cyclictest26-21ksoftirqd/100:00:041
22946996018,30cyclictest26-21ksoftirqd/123:10:141
22946996016,39cyclictest26-21ksoftirqd/122:45:161
22946995943,10cyclictest26-21ksoftirqd/121:20:021
22946995941,11cyclictest26-21ksoftirqd/122:18:481
2294699593,18cyclictest3046-21apt-get20:00:071
2294699593,15cyclictest476-21idleruntime-cro19:50:001
22946995931,12cyclictest26-21ksoftirqd/100:10:001
22942995915,17cyclictest147602chrt20:46:000
22946995843,9cyclictest26-21ksoftirqd/100:00:031
22946995840,10cyclictest26-21ksoftirqd/122:30:001
22946995837,16cyclictest26-21ksoftirqd/119:50:111
22946995836,17cyclictest26-21ksoftirqd/119:40:221
22946995833,19cyclictest26-21ksoftirqd/122:20:341
22946995833,19cyclictest26-21ksoftirqd/122:20:341
2294699583,11cyclictest26-21ksoftirqd/122:40:001
2294699583,11cyclictest26-21ksoftirqd/122:40:001
2294699580,23cyclictest0-21swapper/122:05:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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