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2026-06-23 - 21:49
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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 Tue Jun 23, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491233168,22phc2sys0-21swapper/307:09:223
267862206171,24sleep20-21swapper/207:09:012
266942205171,23sleep00-21swapper/007:07:550
266362202169,22sleep10-21swapper/107:07:111
2407721420,6sleep12733299cyclictest11:30:231
134491720,6getstats2733899cyclictest11:34:543
228852600,7sleep2321ktimersoftd/209:15:162
139391570,1ptp4l401ktimersoftd/308:09:533
139391540,1ptp4l401ktimersoftd/307:15:153
139391540,1ptp4l391rcuc/308:50:423
139391540,1ptp4l391rcuc/308:50:413
139391470,1ptp4l401ktimersoftd/311:58:233
57898450,2rtkit-daemon577-21rtkit-daemon08:50:171
57898450,2rtkit-daemon577-21rtkit-daemon08:50:161
27336994439,3cyclictest13950-21sh10:05:002
1394914433,5phc2sys0-21swapper/307:10:013
1394914433,5phc2sys0-21swapper/307:10:003
139391440,0ptp4l401ktimersoftd/307:49:153
139391430,0ptp4l401ktimersoftd/309:52:533
139391430,0ptp4l401ktimersoftd/309:52:533
139391410,0ptp4l401ktimersoftd/310:35:133
139391410,0ptp4l401ktimersoftd/308:56:453
27336994034,3cyclictest33-21ksoftirqd/210:19:592
27336994029,9cyclictest33-21ksoftirqd/208:25:202
27331994035,3cyclictest9-21ksoftirqd/008:40:010
27331993934,3cyclictest9-21ksoftirqd/007:30:000
27331993933,3cyclictest9-21ksoftirqd/009:20:000
27336993833,3cyclictest33-21ksoftirqd/210:35:002
27336993828,8cyclictest33-21ksoftirqd/210:55:132
27336993825,11cyclictest33-21ksoftirqd/211:15:462
27338993731,4cyclictest41-21ksoftirqd/307:21:453
27336993732,3cyclictest33-21ksoftirqd/210:50:002
2733699370,5cyclictest7872-21ls09:50:212
2733699370,5cyclictest7872-21ls09:50:202
27332993731,3cyclictest25-21ksoftirqd/110:00:001
27332993730,4cyclictest25-21ksoftirqd/109:26:311
27331993732,3cyclictest9-21ksoftirqd/011:55:170
27331993732,3cyclictest9-21ksoftirqd/010:00:010
27338993631,3cyclictest41-21ksoftirqd/310:06:323
27338993630,4cyclictest41-21ksoftirqd/309:49:073
27338993630,4cyclictest41-21ksoftirqd/307:27:303
27336993630,4cyclictest33-21ksoftirqd/212:05:142
27336993630,4cyclictest33-21ksoftirqd/209:43:252
27336993630,3cyclictest33-21ksoftirqd/211:10:202
27336993629,4cyclictest33-21ksoftirqd/208:47:582
27336993611,5cyclictest33-21ksoftirqd/209:45:242
27332993630,4cyclictest25-21ksoftirqd/111:43:551
27332993629,5cyclictest25-21ksoftirqd/107:57:011
27331993632,2cyclictest9-21ksoftirqd/010:40:000
27331993632,2cyclictest9-21ksoftirqd/007:15:010
27331993632,2cyclictest9-21ksoftirqd/007:15:000
27331993631,3cyclictest9-21ksoftirqd/010:55:000
27331993631,3cyclictest9-21ksoftirqd/010:55:000
27331993630,4cyclictest9-21ksoftirqd/010:49:220
139391360,0ptp4l401ktimersoftd/308:25:173
27338993530,3cyclictest41-21ksoftirqd/311:42:373
27338993530,3cyclictest41-21ksoftirqd/310:43:043
27338993529,4cyclictest41-21ksoftirqd/311:50:513
27338993529,4cyclictest41-21ksoftirqd/311:26:443
27338993529,3cyclictest41-21ksoftirqd/312:35:113
27338993528,5cyclictest41-21ksoftirqd/308:47:303
27336993530,3cyclictest33-21ksoftirqd/209:30:002
27336993530,3cyclictest33-21ksoftirqd/208:45:002
27336993530,2cyclictest33-21ksoftirqd/208:15:002
27336993529,4cyclictest33-21ksoftirqd/208:33:042
27336993529,4cyclictest33-21ksoftirqd/207:44:182
27336993529,3cyclictest33-21ksoftirqd/211:35:012
27332993530,3cyclictest25-21ksoftirqd/112:19:381
27332993529,4cyclictest25-21ksoftirqd/111:39:451
27332993529,4cyclictest25-21ksoftirqd/111:02:021
27332993529,4cyclictest25-21ksoftirqd/110:57:171
27332993529,4cyclictest25-21ksoftirqd/108:00:381
27332993528,5cyclictest25-21ksoftirqd/110:05:001
27332993528,4cyclictest25-21ksoftirqd/107:22:121
2733299352,2cyclictest121rcu_preempt08:17:151
27331993530,3cyclictest9-21ksoftirqd/009:15:000
27331993530,3cyclictest9-21ksoftirqd/008:10:150
27331993530,2cyclictest9-21ksoftirqd/012:30:140
139391350,0ptp4l401ktimersoftd/310:31:173
139391350,0ptp4l401ktimersoftd/309:40:233
139391350,0ptp4l401ktimersoftd/308:40:113
27338993429,3cyclictest41-21ksoftirqd/308:11:573
27338993429,3cyclictest11497-21latency_hist07:45:013
27338993428,4cyclictest41-21ksoftirqd/311:22:383
27338993428,4cyclictest41-21ksoftirqd/311:00:003
27338993428,4cyclictest41-21ksoftirqd/309:00:373
27336993430,3cyclictest33-21ksoftirqd/210:10:142
27336993429,3cyclictest33-21ksoftirqd/207:45:302
27336993429,2cyclictest33-21ksoftirqd/209:02:082
27336993428,4cyclictest33-21ksoftirqd/208:39:472
27336993426,6cyclictest33-21ksoftirqd/208:06:372
27336993426,5cyclictest33-21ksoftirqd/207:35:122
27332993429,3cyclictest25-21ksoftirqd/109:13:581
27332993429,3cyclictest25-21ksoftirqd/107:18:581
27332993428,4cyclictest25-21ksoftirqd/111:13:541
27332993428,4cyclictest25-21ksoftirqd/110:30:011
27332993428,4cyclictest25-21ksoftirqd/109:54:311
27332993428,4cyclictest25-21ksoftirqd/109:54:311
27332993428,4cyclictest25-21ksoftirqd/109:09:301
27332993428,4cyclictest25-21ksoftirqd/108:27:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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