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2025-11-09 - 01:55
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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 Sat Nov 08, 2025 12:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137191210165,33phc2sys0-21swapper/307:09:133
304692201168,22sleep00-21swapper/007:08:090
304662197163,23sleep20-21swapper/207:08:072
302892197164,22sleep10-21swapper/107:05:491
1103421570,4sleep33092099cyclictest10:55:293
238422710,5sleep1478-21dbus-daemon12:30:251
71242700,7sleep33092099cyclictest08:35:013
94122630,2sleep33092099cyclictest09:45:203
136991630,1ptp4l401ktimersoftd/307:16:083
136991580,1ptp4l401ktimersoftd/312:13:303
136991580,1ptp4l401ktimersoftd/311:08:263
136991570,1ptp4l401ktimersoftd/311:58:543
136991570,1ptp4l401ktimersoftd/311:46:553
136991570,1ptp4l401ktimersoftd/311:04:203
91672550,4sleep31293-21lldpd12:00:223
136991540,1ptp4l401ktimersoftd/310:01:453
136991530,1ptp4l401ktimersoftd/312:23:423
136991450,0ptp4l401ktimersoftd/312:05:083
59298440,8rtkit-daemon0-21swapper/108:40:051
136991430,0ptp4l401ktimersoftd/310:17:123
136991430,0ptp4l401ktimersoftd/309:05:163
59298420,8rtkit-daemon0-21swapper/107:15:091
136991420,0ptp4l401ktimersoftd/310:53:153
136991420,0ptp4l401ktimersoftd/309:44:553
136991420,0ptp4l401ktimersoftd/308:15:203
136991410,0ptp4l401ktimersoftd/309:27:173
136991410,0ptp4l401ktimersoftd/308:55:223
30919994035,3cyclictest33-21ksoftirqd/208:40:002
30919994034,3cyclictest33-21ksoftirqd/209:40:002
30919994034,3cyclictest33-21ksoftirqd/209:40:002
136991400,0ptp4l401ktimersoftd/309:51:083
30918993927,10cyclictest25-21ksoftirqd/112:35:271
30918993927,10cyclictest25-21ksoftirqd/112:35:271
30919993833,3cyclictest33-21ksoftirqd/212:20:002
30919993833,3cyclictest33-21ksoftirqd/207:20:002
30919993816,16cyclictest33-21ksoftirqd/211:14:392
30918993825,11cyclictest25-21ksoftirqd/111:47:361
30917993826,5cyclictest9-21ksoftirqd/012:16:560
30920993732,3cyclictest41-21ksoftirqd/308:25:003
30919993732,3cyclictest33-21ksoftirqd/208:15:002
30919993731,4cyclictest33-21ksoftirqd/211:32:372
30919993731,3cyclictest33-21ksoftirqd/212:40:002
30919993731,3cyclictest33-21ksoftirqd/212:40:002
30919993730,4cyclictest33-21ksoftirqd/210:22:232
30917993726,4cyclictest9-21ksoftirqd/011:34:230
30920993631,3cyclictest10237-21sh07:35:013
30920993630,4cyclictest41-21ksoftirqd/310:30:003
30919993631,3cyclictest33-21ksoftirqd/211:10:002
30919993631,3cyclictest33-21ksoftirqd/210:59:262
30919993631,3cyclictest33-21ksoftirqd/208:00:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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