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2025-11-25 - 13:14
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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 25, 2025 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
165072221161,50sleep00-21swapper/019:06:400
137191210146,52phc2sys0-21swapper/319:08:233
166602203169,22sleep10-21swapper/119:08:331
146342203170,22sleep20-21swapper/219:05:062
2884021380,6sleep01706499cyclictest22:55:160
153502600,1sleep10-21swapper/121:20:151
136991570,1ptp4l401ktimersoftd/320:40:443
136991570,1ptp4l401ktimersoftd/319:55:363
136991550,1ptp4l401ktimersoftd/300:19:233
84282530,2sleep28432-21sed22:10:262
202042530,2sleep20-21swapper/222:35:262
136991530,1ptp4l401ktimersoftd/322:55:223
245132500,2sleep30-21swapper/323:55:143
153892490,2sleep30-21swapper/320:11:373
136991430,0ptp4l401ktimersoftd/319:50:213
136991420,0ptp4l401ktimersoftd/322:20:133
136991420,0ptp4l401ktimersoftd/322:15:543
136991410,1ptp4l401ktimersoftd/322:33:543
136991390,0ptp4l401ktimersoftd/320:36:393
17065993832,4cyclictest25-21ksoftirqd/123:10:001
17064993834,2cyclictest0-21swapper/019:10:010
17067993730,5cyclictest41-21ksoftirqd/323:03:313
17066993731,4cyclictest33-21ksoftirqd/220:06:422
136991370,0ptp4l401ktimersoftd/321:35:013
17066993630,4cyclictest33-21ksoftirqd/223:54:452
17066993630,4cyclictest33-21ksoftirqd/200:39:332
17066993629,5cyclictest33-21ksoftirqd/221:24:532
17065993631,3cyclictest25-21ksoftirqd/121:35:001
17065993629,5cyclictest25-21ksoftirqd/122:52:341
17064993630,4cyclictest9-21ksoftirqd/022:49:240
17067993529,4cyclictest41-21ksoftirqd/321:03:483
17067993529,4cyclictest41-21ksoftirqd/300:38:183
17067993528,4cyclictest41-21ksoftirqd/322:43:213
17066993529,4cyclictest33-21ksoftirqd/223:24:512
17065993530,3cyclictest25-21ksoftirqd/123:48:041
17065993529,4cyclictest25-21ksoftirqd/122:57:031
17065993529,4cyclictest25-21ksoftirqd/120:19:371
17065993529,4cyclictest25-21ksoftirqd/100:12:571
17065993528,4cyclictest25-21ksoftirqd/123:41:001
17065993528,4cyclictest25-21ksoftirqd/122:25:121
17064993529,4cyclictest9-21ksoftirqd/021:36:310
17064993529,4cyclictest9-21ksoftirqd/020:35:290
17064993528,4cyclictest9-21ksoftirqd/023:40:100
17067993428,4cyclictest41-21ksoftirqd/323:54:453
17067993428,4cyclictest41-21ksoftirqd/323:14:263
17067993428,4cyclictest41-21ksoftirqd/322:38:433
17067993428,4cyclictest41-21ksoftirqd/320:56:023
17067993428,4cyclictest41-21ksoftirqd/320:47:513
17067993428,4cyclictest41-21ksoftirqd/320:00:503
17067993428,4cyclictest41-21ksoftirqd/300:01:443
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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