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2025-04-04 - 17:36
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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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack3slot6.osadl.org (updated Fri Apr 04, 2025 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
51769911115,18cyclictest0-21swapper/008:05:150
51769910216,21cyclictest0-21swapper/010:30:100
51769910148,17cyclictest14-21ksoftirqd/008:40:110
51769910117,19cyclictest0-21swapper/012:10:090
51769910115,20cyclictest0-21swapper/010:40:130
51769910115,20cyclictest0-21swapper/010:40:130
5176999917,19cyclictest0-21swapper/007:50:180
5176999915,18cyclictest0-21swapper/007:35:150
5176999915,18cyclictest0-21swapper/007:35:150
5176999911,19cyclictest0-21swapper/008:25:140
5176999817,17cyclictest0-21swapper/011:30:090
5176999817,17cyclictest0-21swapper/009:55:120
5176999815,20cyclictest0-21swapper/008:10:170
5176999815,18cyclictest0-21swapper/009:00:120
5176999814,19cyclictest0-21swapper/010:10:090
5176999720,18cyclictest0-21swapper/012:00:130
5176999715,18cyclictest0-21swapper/007:40:260
5176999715,18cyclictest0-21swapper/007:15:130
5176999714,73cyclictest0-21swapper/011:20:150
5176999620,17cyclictest0-21swapper/011:00:120
5176999615,19cyclictest0-21swapper/010:00:160
5176999517,18cyclictest0-21swapper/010:35:160
5176999516,21cyclictest0-21swapper/011:15:120
5176999516,21cyclictest0-21swapper/011:15:120
5176999516,18cyclictest0-21swapper/007:45:150
5176999515,18cyclictest0-21swapper/008:00:150
5176999512,17cyclictest0-21swapper/011:35:150
339129433,47sleep00-21swapper/007:05:070
339129433,47sleep00-21swapper/007:05:060
5176999332,15cyclictest14-21ksoftirqd/012:35:140
5176999318,16cyclictest0-21swapper/012:20:140
5176999316,18cyclictest0-21swapper/010:15:150
5176999316,17cyclictest0-21swapper/011:10:100
5176999314,19cyclictest0-21swapper/008:15:130
5176999215,17cyclictest0-21swapper/009:50:200
5176999214,19cyclictest0-21swapper/011:55:110
5176999214,18cyclictest0-21swapper/011:50:080
5176999213,19cyclictest0-21swapper/010:20:250
5176999113,20cyclictest0-21swapper/007:55:130
5176999113,18cyclictest0-21swapper/010:50:100
5176999017,17cyclictest0-21swapper/008:35:150
5176999010,24cyclictest956-21sendmail-mta11:40:160
486329024,55sleep10-21swapper/107:09:001
486329024,55sleep10-21swapper/107:09:001
5176998912,20cyclictest0-21swapper/012:15:210
5176998912,19cyclictest0-21swapper/008:50:110
5176998912,18cyclictest0-21swapper/008:30:160
5176998717,19cyclictest0-21swapper/009:10:220
5176998713,17cyclictest0-21swapper/008:20:120
5176998614,18cyclictest0-21swapper/009:35:150
5176998612,18cyclictest0-21swapper/007:10:180
518099858,17cyclictest7778-21apt-get07:15:121
5176998513,16cyclictest0-21swapper/009:30:220
257532800,11sleep126-21ksoftirqd/109:45:041
518099776,22cyclictest29997-21apt-get11:50:111
5180997714,11cyclictest0-21swapper/107:39:531
5180997714,11cyclictest0-21swapper/107:39:521
518099767,17cyclictest32698-21apt-get10:10:111
518099766,16cyclictest4076-21apt-get10:20:241
5180997612,12cyclictest0-21swapper/108:15:111
5176997647,16cyclictest14-21ksoftirqd/010:55:160
518099756,18cyclictest3470-21apt-get12:10:081
518099756,17cyclictest22041-21apt-get09:35:151
518099755,16cyclictest7117-21apt-get08:50:091
518099747,20cyclictest25840-21apt-get11:35:171
518099747,15cyclictest0-21swapper/112:20:121
518099747,14cyclictest0-21swapper/107:20:131
518099746,21cyclictest6435-21apt-get10:30:091
518099746,21cyclictest31602-21apt-get08:25:141
518099746,21cyclictest21744-21apt-get11:20:161
518099746,17cyclictest11682-21apt-get12:35:151
518099746,15cyclictest28541-21apt-get09:55:131
518099745,16cyclictest17624-21apt-get07:45:141
518099744,64cyclictest8530-21diskstats10:35:251
518099737,15cyclictest0-21swapper/108:40:131
518099736,19cyclictest19362-21apt-get07:50:161
518099736,16cyclictest14081-21apt-get10:55:141
518099735,19cyclictest12350-21apt-get09:05:151
5180997327,41cyclictest15718-21latency_hist09:15:001
518099727,14cyclictest0-21swapper/109:20:161
518099727,12cyclictest0-21swapper/109:15:141
518099725,18cyclictest23848-21apt-get09:40:151
518099725,14cyclictest26380-21apt-get08:10:181
5180997225,41cyclictest441-21dbus-daemon12:05:011
5180997225,40cyclictest0-21swapper/108:37:361
5180997211,12cyclictest0-21swapper/111:15:151
5180997211,12cyclictest0-21swapper/111:15:141
518099716,20cyclictest914-21apt-get08:30:141
518099716,18cyclictest10618-21apt-get09:00:131
518099716,15cyclictest0-21swapper/111:40:161
518099715,17cyclictest24095-21apt-get11:30:091
5180997117,15cyclictest6239-21grep12:15:371
518099709,13cyclictest0-21swapper/110:15:141
518099707,13cyclictest0-21swapper/111:55:111
518099706,17cyclictest30301-21apt-get10:00:161
518099706,17cyclictest11892-21apt-get07:30:091
518099705,17cyclictest9989-21apt-get10:40:131
518099705,17cyclictest9989-21apt-get10:40:121
518099698,14cyclictest0-21swapper/107:40:261
518099698,13cyclictest0-21swapper/108:55:141
518099695,24cyclictest0-21swapper/112:30:011
518099695,10cyclictest0-21swapper/110:29:551
518099693,23cyclictest16000-21kworker/u8:207:10:201
5180996918,13cyclictest0-21swapper/109:30:221
518099685,18cyclictest24588-21apt-get08:05:151
5180996825,37cyclictest26796-21apt-get09:50:191
5180996819,10cyclictest30344-21kernelversion08:20:251
5180996817,12cyclictest18343-21aten2.4-expect11:10:131
518099677,22cyclictest0-21swapper/110:55:011
518099676,20cyclictest15841-21apt-get11:00:131
518099676,18cyclictest22853-21apt-get08:00:151
518099675,17cyclictest9937-21apt-get12:30:091
5180996718,20cyclictest2835-21sshd12:05:351
5176996727,34cyclictest8924-21aten2.4-expect08:55:170
5180996517,8cyclictest0-21swapper/110:10:001
5180996517,17cyclictest6672-21seq08:47:041
5176996547,9cyclictest14-21ksoftirqd/007:30:110
518099646,22cyclictest0-21swapper/107:55:151
5180996414,14cyclictest19739-21seq09:29:121
5180996414,11cyclictest0-21swapper/111:08:351
5180996214,12cyclictest12234-21cat10:50:011
5176996242,12cyclictest14-21ksoftirqd/009:30:010
5180996116,8cyclictest11709-21taskset07:29:561
518099603,20cyclictest23927-21apt11:30:011
5176996020,35cyclictest16006-21aten2.4-expect09:15:150
5180995917,12cyclictest29483-21seq11:46:211
5176995943,9cyclictest14-21ksoftirqd/008:50:010
5176995942,9cyclictest14-21ksoftirqd/011:10:010
5176995942,10cyclictest14-21ksoftirqd/009:40:260
5176995941,10cyclictest14-21ksoftirqd/009:50:010
5176995941,10cyclictest14-21ksoftirqd/009:25:000
5176995940,11cyclictest14-21ksoftirqd/011:30:010
5176995940,11cyclictest14-21ksoftirqd/010:10:010
5176995934,19cyclictest14-21ksoftirqd/012:30:120
5176995840,10cyclictest14-21ksoftirqd/009:05:120
5176995739,10cyclictest14-21ksoftirqd/007:30:000
5176995738,11cyclictest14-21ksoftirqd/012:25:050
5176995738,10cyclictest14-21ksoftirqd/007:25:010
5176995737,12cyclictest14-21ksoftirqd/010:50:000
517699555,44cyclictest0-21swapper/010:29:390
5176995538,9cyclictest14-21ksoftirqd/011:50:010
517699523,41cyclictest3084-21runrttasks12:08:160
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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