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2026-08-19 - 21:24
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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 rackdslot4.osadl.org (updated Wed Aug 19, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591212167,33phc2sys0-21swapper/307:06:213
217642202169,22sleep00-21swapper/007:06:080
220382201168,22sleep20-21swapper/207:09:352
217602201167,22sleep10-21swapper/107:06:061
3112321660,7sleep02236499cyclictest10:40:220
138491690,1ptp4l401ktimersoftd/312:35:233
138491680,1ptp4l401ktimersoftd/311:43:523
22365996331,3cyclictest25-21ksoftirqd/110:15:001
22366996224,4cyclictest33-21ksoftirqd/210:15:182
22366996127,6cyclictest33-21ksoftirqd/208:30:232
22366996123,8cyclictest33-21ksoftirqd/207:40:242
22366996029,12cyclictest33-21ksoftirqd/212:15:272
22366996028,5cyclictest33-21ksoftirqd/207:50:002
22366996025,10cyclictest33-21ksoftirqd/211:55:142
22366995930,6cyclictest33-21ksoftirqd/209:45:232
22366995928,5cyclictest33-21ksoftirqd/209:40:262
22366995921,4cyclictest33-21ksoftirqd/210:20:182
22366995921,4cyclictest33-21ksoftirqd/210:20:182
22365995925,8cyclictest25-21ksoftirqd/107:35:001
22366995830,4cyclictest33-21ksoftirqd/210:10:222
22366995826,5cyclictest33-21ksoftirqd/207:30:262
22366995825,4cyclictest33-21ksoftirqd/209:40:022
22366995822,4cyclictest33-21ksoftirqd/209:20:002
22366995819,11cyclictest33-21ksoftirqd/208:20:232
22365995827,8cyclictest25-21ksoftirqd/108:10:131
134991580,7getstats2236799cyclictest10:52:223
22366995727,8cyclictest33-21ksoftirqd/207:20:152
22366995719,4cyclictest33-21ksoftirqd/207:50:142
22366995624,4cyclictest33-21ksoftirqd/208:02:362
22366995620,10cyclictest33-21ksoftirqd/208:25:192
22365995629,6cyclictest25-21ksoftirqd/111:25:001
22365995624,11cyclictest25-21ksoftirqd/108:20:011
22365995620,7cyclictest25-21ksoftirqd/110:15:261
22365995617,6cyclictest25-21ksoftirqd/112:35:211
22365995613,8cyclictest25-21ksoftirqd/108:25:261
22366995522,7cyclictest33-21ksoftirqd/208:41:452
22366995522,6cyclictest33-21ksoftirqd/210:35:132
22366995522,5cyclictest33-21ksoftirqd/207:25:232
22365995522,8cyclictest25-21ksoftirqd/108:55:001
22365995516,9cyclictest25-21ksoftirqd/107:27:141
22366995421,4cyclictest33-21ksoftirqd/210:30:232
22365995424,3cyclictest25-21ksoftirqd/110:00:271
22365995419,4cyclictest25-21ksoftirqd/109:40:121
22365995415,10cyclictest25-21ksoftirqd/110:55:171
22365995414,7cyclictest25-21ksoftirqd/107:35:151
22365995413,7cyclictest25-21ksoftirqd/111:40:251
22365995413,7cyclictest25-21ksoftirqd/110:35:221
2236699534,9cyclictest33-21ksoftirqd/211:15:162
2236699534,10cyclictest33-21ksoftirqd/210:55:262
2236699533,8cyclictest33-21ksoftirqd/212:00:172
22366995322,8cyclictest33-21ksoftirqd/208:15:002
22366995317,7cyclictest33-21ksoftirqd/207:11:142
22365995325,4cyclictest25-21ksoftirqd/111:10:131
22365995325,4cyclictest25-21ksoftirqd/108:40:261
22365995323,4cyclictest25-21ksoftirqd/110:45:241
22365995318,4cyclictest25-21ksoftirqd/110:50:171
22365995312,8cyclictest25-21ksoftirqd/110:25:211
2236699526,9cyclictest33-21ksoftirqd/212:20:272
2236699522,9cyclictest33-21ksoftirqd/211:05:272
22365995225,4cyclictest25-21ksoftirqd/112:20:141
22365995219,7cyclictest25-21ksoftirqd/108:30:121
22365995218,6cyclictest25-21ksoftirqd/108:00:261
22365995218,4cyclictest25-21ksoftirqd/111:50:121
22365995218,4cyclictest25-21ksoftirqd/109:05:231
22365995218,3cyclictest25-21ksoftirqd/110:40:161
22365995217,4cyclictest25-21ksoftirqd/111:15:251
22365995215,11cyclictest25-21ksoftirqd/112:15:181
22365995213,8cyclictest25-21ksoftirqd/112:00:241
138491520,0ptp4l401ktimersoftd/311:11:153
2236699512,8cyclictest33-21ksoftirqd/207:35:202
22366995126,8cyclictest33-21ksoftirqd/209:55:152
22366995120,3cyclictest33-21ksoftirqd/209:07:572
22365995129,7cyclictest25-21ksoftirqd/112:05:251
22365995125,3cyclictest25-21ksoftirqd/109:35:221
22365995119,7cyclictest25-21ksoftirqd/111:35:161
22365995119,4cyclictest25-21ksoftirqd/111:50:001
22365995119,11cyclictest25-21ksoftirqd/108:20:131
22365995118,3cyclictest25-21ksoftirqd/109:00:201
2236699506,7cyclictest33-21ksoftirqd/207:55:132
2236699504,9cyclictest33-21ksoftirqd/212:35:162
2236699504,8cyclictest33-21ksoftirqd/210:00:242
2236699503,8cyclictest33-21ksoftirqd/207:15:142
22366995018,7cyclictest33-21ksoftirqd/211:52:492
22366995017,4cyclictest33-21ksoftirqd/212:25:142
22365995020,6cyclictest25-21ksoftirqd/111:30:231
22365995020,4cyclictest25-21ksoftirqd/108:55:181
22365995019,5cyclictest25-21ksoftirqd/110:30:131
22365995018,6cyclictest25-21ksoftirqd/112:10:191
22365995016,4cyclictest25-21ksoftirqd/110:05:161
22365995013,8cyclictest25-21ksoftirqd/109:25:241
2236699496,5cyclictest33-21ksoftirqd/210:45:002
2236699496,2cyclictest33-21ksoftirqd/212:05:182
2236699494,9cyclictest33-21ksoftirqd/212:10:172
2236699494,10cyclictest33-21ksoftirqd/211:40:302
2236699494,10cyclictest33-21ksoftirqd/208:50:132
2236699493,8cyclictest33-21ksoftirqd/211:10:262
2236699493,10cyclictest33-21ksoftirqd/209:25:262
2236599499,7cyclictest25-21ksoftirqd/111:55:181
22365994923,7cyclictest25-21ksoftirqd/111:00:171
22365994918,6cyclictest25-21ksoftirqd/107:15:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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