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2026-04-28 - 00:23
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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
Characteristics of the 50 highest latencies:
System rackdslot3.osadl.org (updated Mon Apr 27, 2026 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491205170,23phc2sys0-21swapper/307:05:413
283952204170,23sleep10-21swapper/107:05:541
286172200166,23sleep20-21swapper/207:08:492
286402198165,22sleep00-21swapper/007:09:070
2906221810,6sleep02918999cyclictest08:15:220
2906221810,6sleep02918999cyclictest08:15:210
29193998218,62cyclictest19086-21kworker/2:209:05:332
54432630,3sleep15447-21phc2sys09:40:241
29189995923,4cyclictest9-21ksoftirqd/008:50:300
29189995828,4cyclictest9-21ksoftirqd/007:10:220
29189995729,4cyclictest9-21ksoftirqd/008:20:230
29189995727,7cyclictest9-21ksoftirqd/011:25:160
29189995727,7cyclictest9-21ksoftirqd/011:25:160
139391570,1ptp4l401ktimersoftd/311:41:093
29189995633,3cyclictest9-21ksoftirqd/008:35:260
29193995515,38cyclictest22094-21kworker/2:011:30:332
29189995526,4cyclictest9-21ksoftirqd/009:40:350
29189995524,3cyclictest9-21ksoftirqd/010:19:450
29189995523,6cyclictest9-21ksoftirqd/010:30:200
29189995521,4cyclictest9-21ksoftirqd/007:25:230
29189995520,4cyclictest9-21ksoftirqd/008:05:200
29189995519,6cyclictest9-21ksoftirqd/007:50:220
29189995517,6cyclictest9-21ksoftirqd/008:45:250
29189995517,6cyclictest9-21ksoftirqd/007:45:240
29189995517,6cyclictest9-21ksoftirqd/007:45:240
29189995514,7cyclictest9-21ksoftirqd/010:55:140
29189995426,4cyclictest9-21ksoftirqd/012:20:240
29189995425,6cyclictest9-21ksoftirqd/009:00:190
29189995422,3cyclictest9-21ksoftirqd/012:15:180
29189995417,5cyclictest9-21ksoftirqd/011:15:120
29189995415,6cyclictest9-21ksoftirqd/009:45:220
29189995413,6cyclictest9-21ksoftirqd/009:20:270
29189995325,7cyclictest9-21ksoftirqd/009:30:120
29189995324,6cyclictest9-21ksoftirqd/009:05:220
29189995323,4cyclictest9-21ksoftirqd/012:40:010
29189995321,6cyclictest9-21ksoftirqd/011:40:150
29189995316,6cyclictest9-21ksoftirqd/008:10:260
29189995315,6cyclictest9-21ksoftirqd/011:10:250
29189995314,6cyclictest9-21ksoftirqd/010:00:190
29189995314,6cyclictest9-21ksoftirqd/008:30:190
29189995311,6cyclictest9-21ksoftirqd/010:20:140
29189995224,7cyclictest9-21ksoftirqd/011:55:210
29189995224,7cyclictest9-21ksoftirqd/011:55:210
29189995224,4cyclictest9-21ksoftirqd/009:10:160
29189995219,7cyclictest9-21ksoftirqd/010:45:180
29189995219,5cyclictest9-21ksoftirqd/011:35:250
29189995217,4cyclictest9-21ksoftirqd/010:35:180
29189995216,6cyclictest9-21ksoftirqd/007:20:230
29189995216,5cyclictest9-21ksoftirqd/009:15:180
29189995215,5cyclictest9-21ksoftirqd/007:15:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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