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2025-11-18 - 12:22
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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 Tue Nov 18, 2025 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
45112206173,22sleep10-21swapper/119:07:281
44312204171,22sleep30-21swapper/319:06:263
43802201168,22sleep20-21swapper/219:05:452
45902199165,23sleep00-21swapper/019:08:200
3216321630,5sleep2501399cyclictest22:20:012
274302660,1sleep20-21swapper/200:25:022
501399605,23cyclictest29928-21cat20:00:182
5012996032,3cyclictest25-21ksoftirqd/121:25:311
5012995426,4cyclictest25-21ksoftirqd/120:45:191
5012995421,8cyclictest25-21ksoftirqd/123:45:001
5012995413,8cyclictest25-21ksoftirqd/122:30:241
84662530,2sleep30-21swapper/323:45:143
5012995319,4cyclictest25-21ksoftirqd/119:45:191
169122530,5sleep116916-21timerwakeupswit21:45:261
5012995226,7cyclictest25-21ksoftirqd/122:05:171
5012995223,4cyclictest25-21ksoftirqd/123:00:271
5012995221,7cyclictest25-21ksoftirqd/119:30:001
5012995220,4cyclictest25-21ksoftirqd/120:05:201
5012995212,8cyclictest25-21ksoftirqd/122:20:251
198552520,4sleep1241ktimersoftd/121:55:011
5012995125,7cyclictest25-21ksoftirqd/100:10:271
5012995125,7cyclictest25-21ksoftirqd/100:10:261
5012995117,9cyclictest25-21ksoftirqd/121:34:591
5012995112,8cyclictest25-21ksoftirqd/119:10:261
5012995112,8cyclictest25-21ksoftirqd/100:35:261
5012995111,9cyclictest25-21ksoftirqd/121:15:181
5012995111,9cyclictest25-21ksoftirqd/100:05:171
59298500,2rtkit-daemon0-21swapper/020:17:250
5012995025,7cyclictest25-21ksoftirqd/120:10:201
5012995022,7cyclictest25-21ksoftirqd/123:50:001
5012995019,4cyclictest25-21ksoftirqd/122:40:231
5012995019,4cyclictest25-21ksoftirqd/122:40:231
5012995018,4cyclictest25-21ksoftirqd/123:20:271
5012995018,4cyclictest25-21ksoftirqd/121:05:181
5012995018,4cyclictest25-21ksoftirqd/119:20:271
5012995018,4cyclictest25-21ksoftirqd/100:30:241
5012995012,10cyclictest25-21ksoftirqd/122:25:251
5012995011,8cyclictest25-21ksoftirqd/121:55:191
5012995011,8cyclictest25-21ksoftirqd/120:15:181
188942500,1sleep00-21swapper/020:45:140
5012994920,8cyclictest25-21ksoftirqd/120:58:581
5012994919,7cyclictest25-21ksoftirqd/123:59:591
5012994919,3cyclictest25-21ksoftirqd/119:18:221
5012994917,4cyclictest25-21ksoftirqd/123:25:231
5012994916,4cyclictest25-21ksoftirqd/123:15:161
5012994916,4cyclictest25-21ksoftirqd/119:50:171
5012994915,7cyclictest25-21ksoftirqd/122:55:151
5012994912,7cyclictest25-21ksoftirqd/122:35:191
5012994911,9cyclictest25-21ksoftirqd/121:35:201
5012994911,8cyclictest25-21ksoftirqd/122:10:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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