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2026-09-20 - 23:53
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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 Sun Sep 20, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18485999510,76cyclictest0-21swapper/009:15:150
1848599939,76cyclictest0-21swapper/010:05:130
1848599939,76cyclictest0-21swapper/010:05:130
1730329339,39sleep10-21swapper/107:05:261
18485999213,17cyclictest0-21swapper/008:40:150
18485999011,18cyclictest0-21swapper/012:20:130
1848999897,17cyclictest0-21swapper/109:15:151
18485998912,17cyclictest0-21swapper/012:30:150
18485998912,16cyclictest0-21swapper/010:20:120
18485998910,18cyclictest0-21swapper/010:55:140
18485998910,18cyclictest0-21swapper/008:10:130
18485998910,16cyclictest0-21swapper/009:35:170
18485998839,38cyclictest14-21ksoftirqd/008:20:130
18485998812,16cyclictest0-21swapper/008:35:240
18485998811,18cyclictest0-21swapper/008:50:140
18485998811,16cyclictest0-21swapper/007:15:140
1848999877,26cyclictest6946-21apt-get08:05:141
18485998713,16cyclictest0-21swapper/011:55:130
18485998711,63cyclictest0-21swapper/011:50:140
18485998711,63cyclictest0-21swapper/011:50:130
18485998711,17cyclictest0-21swapper/011:45:240
18485998711,16cyclictest0-21swapper/011:25:130
18485998711,16cyclictest0-21swapper/009:05:130
18485998711,15cyclictest0-21swapper/012:15:130
18485998710,14cyclictest0-21swapper/009:30:110
1848999869,16cyclictest0-21swapper/110:50:141
1848999868,17cyclictest0-21swapper/109:55:111
1848999867,16cyclictest0-21swapper/111:35:121
1848999866,17cyclictest0-21swapper/107:25:141
18485998611,16cyclictest0-21swapper/010:35:140
18485998610,17cyclictest0-21swapper/007:10:140
18485998610,16cyclictest0-21swapper/011:30:140
18485998610,16cyclictest0-21swapper/010:10:130
18485998610,15cyclictest0-21swapper/011:10:130
1848999859,16cyclictest0-21swapper/108:35:221
1848999858,16cyclictest0-21swapper/112:00:131
1848999856,26cyclictest16706-21apt-get10:00:131
18485998511,17cyclictest0-21swapper/011:15:120
18485998511,17cyclictest0-21swapper/011:00:140
18485998511,16cyclictest0-21swapper/009:25:150
18485998511,15cyclictest0-21swapper/007:45:240
18485998511,14cyclictest0-21swapper/012:05:130
18485998510,16cyclictest0-21swapper/008:45:230
18485998510,14cyclictest0-21swapper/008:15:140
1848999849,16cyclictest0-21swapper/108:55:131
1848999847,17cyclictest0-21swapper/109:00:141
1848999846,18cyclictest0-21swapper/110:15:141
1848999846,17cyclictest0-21swapper/107:55:241
1848599849,16cyclictest0-21swapper/011:35:130
1848599849,15cyclictest0-21swapper/009:20:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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