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2026-10-21 - 00:49
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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 Oct 20, 2026 12:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28822210221,33sleep10-21swapper/107:08:281
29168999315,63cyclictest0-21swapper/110:20:141
2880629120,27sleep00-21swapper/007:08:170
2916099905,77cyclictest0-21swapper/012:10:150
29168998917,61cyclictest0-21swapper/111:30:131
29168998915,58cyclictest0-21swapper/111:55:161
29168998815,61cyclictest0-21swapper/112:05:141
2916899878,25cyclictest7417-21apt-get09:10:141
29168998614,63cyclictest0-21swapper/112:00:131
29168998614,63cyclictest0-21swapper/110:40:141
29168998525,54cyclictest16878-21seq09:35:301
29168998517,56cyclictest0-21swapper/110:00:221
29168998515,62cyclictest0-21swapper/107:50:181
29168998512,63cyclictest0-21swapper/109:05:131
2916099852,33cyclictest7243-21diskmemload09:10:130
2916899846,25cyclictest27520-21apt-get08:35:161
29168998416,60cyclictest0-21swapper/112:15:131
29168998416,60cyclictest0-21swapper/112:15:131
29168998415,62cyclictest0-21swapper/110:25:141
29168998415,60cyclictest0-21swapper/109:15:161
29168998414,63cyclictest0-21swapper/112:25:131
29168998414,62cyclictest0-21swapper/108:00:141
29168998413,61cyclictest0-21swapper/111:10:181
29168998315,60cyclictest0-21swapper/111:50:141
29168998314,62cyclictest0-21swapper/107:40:121
29168998314,60cyclictest0-21swapper/107:15:141
29168998313,60cyclictest0-21swapper/109:40:131
2916099838,15cyclictest0-21swapper/007:25:150
2916099836,15cyclictest0-21swapper/008:15:130
29168998225,51cyclictest13485-21gdbus07:55:051
29168998221,55cyclictest5825-21runrttasks10:35:251
29168998214,61cyclictest0-21swapper/110:45:131
29168998214,61cyclictest0-21swapper/110:15:231
29168998213,61cyclictest0-21swapper/111:05:141
2916099827,15cyclictest0-21swapper/011:20:140
2916099826,63cyclictest4501-21apt-get12:05:140
2916099826,17cyclictest0-21swapper/008:10:150
2916099826,15cyclictest0-21swapper/009:25:130
2916099826,15cyclictest0-21swapper/008:05:120
2916099825,65cyclictest7990-21apt-get07:40:120
2916899817,23cyclictest6291-21apt-get12:10:141
2916899816,23cyclictest26401-21apt-get11:35:161
29168998113,55cyclictest0-21swapper/109:20:171
29168998112,61cyclictest0-21swapper/108:40:171
2916099817,16cyclictest0-21swapper/010:45:150
2916099817,14cyclictest0-21swapper/012:35:140
2916099816,56cyclictest5624-21apt-get09:05:130
2916099816,15cyclictest0-21swapper/008:50:130
2916099816,14cyclictest0-21swapper/011:15:150
2916099816,14cyclictest0-21swapper/011:15:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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