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2026-03-19 - 08:45
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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 rack3slot6.osadl.org (updated Thu Mar 19, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22980210633,19sleep10-21swapper/119:05:061
2473799935,80cyclictest9596-21apt-get23:00:150
24737999014,68cyclictest0-21swapper/000:35:110
24737999014,60cyclictest0-21swapper/022:30:100
24737999013,61cyclictest0-21swapper/000:15:110
2473799894,78cyclictest23973-21ntpq20:35:290
24737998916,59cyclictest0-21swapper/020:30:120
24737998913,61cyclictest0-21swapper/022:25:140
24737998814,59cyclictest0-21swapper/000:20:210
24737998812,62cyclictest0-21swapper/023:20:120
24737998812,62cyclictest0-21swapper/023:20:110
24737998713,58cyclictest0-21swapper/021:05:140
153142870,8sleep10-21swapper/120:10:301
2474099856,58cyclictest16627-21apt-get23:20:121
2474099856,58cyclictest16627-21apt-get23:20:111
24737998522,53cyclictest0-21swapper/022:00:110
24737998516,61cyclictest0-21swapper/022:05:120
24737998516,60cyclictest0-21swapper/020:45:110
24737998515,61cyclictest0-21swapper/019:20:110
24737998514,58cyclictest0-21swapper/022:20:130
24737998513,64cyclictest0-21swapper/023:10:110
24737998513,59cyclictest0-21swapper/021:30:220
2473799843,76cyclictest250-21systemd-journal21:11:220
24737998413,57cyclictest0-21swapper/022:15:090
24737998412,61cyclictest0-21swapper/023:35:150
2473799833,73cyclictest8972-21users22:55:370
24737998313,60cyclictest0-21swapper/023:30:230
24737998313,58cyclictest0-21swapper/021:45:120
24737998215,61cyclictest0-21swapper/020:40:090
2474099817,64cyclictest29749-21apt-get22:25:131
2474099816,64cyclictest3814-21apt-get00:15:101
2474099816,64cyclictest31487-21apt-get22:30:111
2473799816,60cyclictest25701-21apt-get23:45:110
2473799813,17cyclictest14-21ksoftirqd/000:00:150
24737998124,46cyclictest448-21dbus-daemon20:09:000
24737998114,57cyclictest0-21swapper/022:35:130
24737998114,57cyclictest0-21swapper/021:20:130
24737998114,56cyclictest0-21swapper/020:55:140
24737998113,60cyclictest0-21swapper/021:55:120
24737998113,59cyclictest0-21swapper/020:00:130
24737998113,57cyclictest0-21swapper/019:55:130
24737998113,56cyclictest0-21swapper/020:25:130
24737998112,62cyclictest0-21swapper/000:05:100
2474099806,62cyclictest21524-21apt-get20:30:121
2474099806,61cyclictest5875-21apt-get00:20:231
2474099805,58cyclictest22152-21apt-get23:35:151
2473799803,72cyclictest31713-21users19:25:380
24737998016,57cyclictest0-21swapper/023:25:120
24737998013,60cyclictest0-21swapper/020:20:110
24737998013,60cyclictest0-21swapper/000:25:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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