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2026-05-05 - 02:29
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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 rack3slot6.osadl.org (updated Tue May 05, 2026 00:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15112210032,19sleep10-21swapper/119:05:071
16897999118,17cyclictest0-21swapper/122:35:101
16897999116,64cyclictest0-21swapper/119:50:131
1689799886,20cyclictest2337-21apt-get23:00:161
16897998814,17cyclictest0-21swapper/122:10:141
16897998814,17cyclictest0-21swapper/122:10:141
16897998814,16cyclictest0-21swapper/121:05:151
1689799877,25cyclictest27728-21apt-get21:10:141
1689799877,25cyclictest27728-21apt-get21:10:141
1689799877,25cyclictest19510-21apt-get19:15:151
16897998715,17cyclictest0-21swapper/119:25:221
16897998714,17cyclictest0-21swapper/121:30:221
1689199876,26cyclictest29520-21apt-get22:45:130
1689199876,26cyclictest29520-21apt-get22:45:130
1689799866,19cyclictest6686-21apt-get20:10:121
16897998614,16cyclictest0-21swapper/123:05:151
16897998614,16cyclictest0-21swapper/123:05:151
1689199866,24cyclictest6440-21apt-get21:40:120
1689799857,21cyclictest26791-21apt-get19:35:141
1689199855,17cyclictest31231-21apt-get21:20:120
1689799847,20cyclictest28601-21apt-get19:40:121
1689799846,22cyclictest5863-21apt-get23:10:131
16897998415,15cyclictest0-21swapper/100:15:131
1689199845,24cyclictest29466-21apt-get21:15:140
1689199845,10cyclictest0-21swapper/019:35:190
1689799837,22cyclictest25051-21apt-get19:30:131
16897998315,17cyclictest0-21swapper/121:20:121
16897998314,17cyclictest0-21swapper/119:20:131
16897998312,17cyclictest0-21swapper/122:40:131
1689199836,28cyclictest4076-21apt-get23:05:140
1689199836,28cyclictest4076-21apt-get23:05:140
1689799828,24cyclictest24200-21apt-get21:00:131
1689799826,20cyclictest1397-21apt-get19:55:121
16897998215,16cyclictest0-21swapper/120:35:111
1689799817,20cyclictest23411-21apt-get00:00:131
1689799816,21cyclictest9917-21apt-get21:50:131
1689799816,18cyclictest25456-21apt-get00:05:171
16897998117,54cyclictest0-21swapper/121:40:121
16897998113,16cyclictest0-21swapper/122:20:121
1689199814,19cyclictest28977-21apt-get00:15:130
16891998123,51cyclictest22892-21cat20:55:230
16897998025,21cyclictest243-21systemd-journal21:40:011
16897998014,15cyclictest0-21swapper/120:05:141
1689199806,23cyclictest21275-21apt-get19:20:140
1689199805,23cyclictest15403-21apt-get20:35:130
16891998013,58cyclictest0-21swapper/000:20:110
1650928020,51sleep00-21swapper/019:08:080
1689799797,22cyclictest567-21apt-get22:55:141
1689799797,22cyclictest11925-21apt-get20:25:141
1689799795,19cyclictest30735-21apt-get00:20:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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