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2026-04-07 - 02:56
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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 100 highest latencies:
System rackdslot3.osadl.org (updated Mon Apr 06, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145772234168,21sleep20-21swapper/207:06:582
139491232169,51phc2sys0-21swapper/307:07:033
147402204170,23sleep00-21swapper/007:09:040
144992202170,21sleep10-21swapper/107:05:561
139391800,1ptp4l5870-21cpuspeed_turbos09:05:133
93212670,2sleep20-21swapper/212:35:002
15114996625,4cyclictest33-21ksoftirqd/208:55:142
15113996519,4cyclictest25-21ksoftirqd/109:20:191
15114996322,4cyclictest33-21ksoftirqd/208:45:192
15113996217,5cyclictest25-21ksoftirqd/110:25:141
15114996115,4cyclictest33-21ksoftirqd/207:15:232
15114996115,4cyclictest33-21ksoftirqd/207:15:232
15114996114,4cyclictest33-21ksoftirqd/207:15:002
15114996012,9cyclictest33-21ksoftirqd/211:15:002
15114995924,9cyclictest33-21ksoftirqd/210:25:272
15114995924,11cyclictest33-21ksoftirqd/211:30:012
15114995923,4cyclictest33-21ksoftirqd/207:20:242
15114995914,4cyclictest33-21ksoftirqd/209:00:262
15113995930,7cyclictest25-21ksoftirqd/109:35:131
15113995930,2cyclictest25-21ksoftirqd/108:35:121
15113995923,7cyclictest25-21ksoftirqd/107:50:001
15115995825,4cyclictest41-21ksoftirqd/312:35:163
15114995827,5cyclictest33-21ksoftirqd/212:05:012
15114995826,9cyclictest33-21ksoftirqd/209:30:262
15114995819,8cyclictest33-21ksoftirqd/210:10:132
15114995816,5cyclictest33-21ksoftirqd/209:35:132
15114995814,5cyclictest33-21ksoftirqd/208:40:242
15114995814,5cyclictest33-21ksoftirqd/208:40:232
15113995814,8cyclictest25-21ksoftirqd/107:20:001
15113995814,8cyclictest25-21ksoftirqd/107:20:001
15114995722,3cyclictest33-21ksoftirqd/211:00:002
15114995720,6cyclictest33-21ksoftirqd/207:25:222
15114995719,7cyclictest33-21ksoftirqd/210:40:182
15114995719,4cyclictest33-21ksoftirqd/210:50:272
15114995717,9cyclictest33-21ksoftirqd/210:15:392
15114995714,8cyclictest33-21ksoftirqd/209:05:222
15114995714,4cyclictest33-21ksoftirqd/207:55:152
15114995712,4cyclictest33-21ksoftirqd/209:25:232
15114995711,8cyclictest33-21ksoftirqd/207:40:282
15114995618,7cyclictest33-21ksoftirqd/209:45:262
15114995617,5cyclictest33-21ksoftirqd/212:15:182
15114995614,4cyclictest33-21ksoftirqd/211:20:232
15114995611,5cyclictest33-21ksoftirqd/210:05:222
15113995628,4cyclictest25-21ksoftirqd/110:55:001
15113995627,4cyclictest25-21ksoftirqd/112:35:011
15113995627,4cyclictest25-21ksoftirqd/110:05:191
15113995619,4cyclictest25-21ksoftirqd/107:40:251
139391560,1ptp4l401ktimersoftd/312:17:483
139391560,1ptp4l401ktimersoftd/310:15:143
15114995525,8cyclictest33-21ksoftirqd/212:35:242
15114995517,6cyclictest33-21ksoftirqd/207:37:332
15114995515,7cyclictest33-21ksoftirqd/208:06:572
15114995514,4cyclictest33-21ksoftirqd/212:05:142
15113995526,8cyclictest25-21ksoftirqd/111:50:001
15113995525,6cyclictest25-21ksoftirqd/111:15:011
15113995522,7cyclictest25-21ksoftirqd/107:55:151
15113995521,4cyclictest25-21ksoftirqd/111:40:001
15113995520,5cyclictest25-21ksoftirqd/109:55:001
139391550,1ptp4l401ktimersoftd/308:25:163
1511499548,3cyclictest33-21ksoftirqd/211:35:132
15114995423,4cyclictest33-21ksoftirqd/208:20:142
15114995418,5cyclictest33-21ksoftirqd/211:17:272
15114995417,9cyclictest33-21ksoftirqd/207:30:262
15113995422,4cyclictest25-21ksoftirqd/112:35:241
15113995421,4cyclictest25-21ksoftirqd/110:15:011
15113995418,4cyclictest25-21ksoftirqd/111:55:181
15113995417,7cyclictest25-21ksoftirqd/111:50:201
15115995320,3cyclictest41-21ksoftirqd/310:35:183
1511499539,4cyclictest33-21ksoftirqd/208:15:182
15114995311,4cyclictest33-21ksoftirqd/210:20:152
15114995310,4cyclictest33-21ksoftirqd/211:30:122
15113995324,6cyclictest25-21ksoftirqd/110:40:241
15113995324,4cyclictest25-21ksoftirqd/110:20:251
15113995321,8cyclictest25-21ksoftirqd/108:10:011
15114995220,8cyclictest33-21ksoftirqd/210:00:182
15114995219,9cyclictest33-21ksoftirqd/212:10:152
15114995217,6cyclictest33-21ksoftirqd/209:20:222
15113995224,9cyclictest25-21ksoftirqd/111:40:241
15113995224,9cyclictest25-21ksoftirqd/111:40:241
15113995220,8cyclictest25-21ksoftirqd/111:30:111
15113995219,8cyclictest25-21ksoftirqd/107:35:261
15113995219,7cyclictest25-21ksoftirqd/109:55:221
15113995216,8cyclictest25-21ksoftirqd/112:30:001
1511499515,3cyclictest33-21ksoftirqd/208:25:162
15114995113,5cyclictest33-21ksoftirqd/209:50:242
15114995112,10cyclictest33-21ksoftirqd/210:50:012
15113995122,4cyclictest25-21ksoftirqd/107:25:251
15113995121,7cyclictest25-21ksoftirqd/110:20:011
15113995120,6cyclictest25-21ksoftirqd/111:00:191
15113995119,7cyclictest25-21ksoftirqd/109:25:271
15113995119,4cyclictest25-21ksoftirqd/108:55:011
15113995118,8cyclictest25-21ksoftirqd/110:45:191
15113995118,3cyclictest25-21ksoftirqd/110:04:591
15113995117,7cyclictest25-21ksoftirqd/111:05:261
15113995116,8cyclictest25-21ksoftirqd/109:45:001
15113995115,8cyclictest25-21ksoftirqd/110:30:151
139391510,1ptp4l401ktimersoftd/309:15:023
139391510,0ptp4l401ktimersoftd/311:42:163
139391510,0ptp4l401ktimersoftd/311:42:163
15115995016,7cyclictest41-21ksoftirqd/311:10:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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