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2026-04-11 - 22:22
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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 100 highest latencies:
System rack3slot6.osadl.org (updated Sat Apr 11, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18849910675,20cyclictest14-21ksoftirqd/008:45:130
18849910472,18cyclictest0-21swapper/010:20:140
18849910374,18cyclictest14-21ksoftirqd/012:30:140
18849910271,22cyclictest14-21ksoftirqd/012:00:110
18849910070,19cyclictest14-21ksoftirqd/010:15:150
1681210040,44sleep10-21swapper/107:09:191
1884999865,18cyclictest14-21ksoftirqd/008:55:120
1884999767,20cyclictest14-21ksoftirqd/007:50:140
1884999765,21cyclictest14-21ksoftirqd/012:35:130
1884999763,21cyclictest14-21ksoftirqd/009:30:130
1884999763,20cyclictest14-21ksoftirqd/011:45:250
1884999746,42cyclictest14-21ksoftirqd/008:20:150
1890999612,25cyclictest0-21swapper/107:40:121
1884999568,19cyclictest14-21ksoftirqd/008:30:130
1884999566,20cyclictest14-21ksoftirqd/010:40:140
1884999564,21cyclictest14-21ksoftirqd/010:35:140
1884999564,20cyclictest14-21ksoftirqd/011:15:130
1884999564,20cyclictest14-21ksoftirqd/010:25:140
1884999560,20cyclictest14-21ksoftirqd/009:45:150
1884999513,73cyclictest0-21swapper/009:20:130
1884999512,69cyclictest0-21swapper/008:15:140
188499948,55cyclictest0-21swapper/011:50:220
1884999463,18cyclictest0-21swapper/012:15:140
1884999461,19cyclictest14-21ksoftirqd/011:00:160
1884999413,67cyclictest0-21swapper/007:15:130
1890999343,28cyclictest26-21ksoftirqd/109:25:121
1884999368,17cyclictest14-21ksoftirqd/011:10:110
1884999363,18cyclictest14-21ksoftirqd/008:25:110
1884999359,23cyclictest14-21ksoftirqd/009:10:140
188499935,57cyclictest0-21swapper/010:50:210
188499926,56cyclictest0-21swapper/009:25:370
188499925,57cyclictest0-21swapper/009:35:240
188499918,54cyclictest0-21swapper/009:00:370
188499915,57cyclictest0-21swapper/008:40:130
188499913,65cyclictest24794-21taskset09:43:020
1884999113,71cyclictest0-21swapper/009:15:150
1884999112,65cyclictest0-21swapper/007:25:140
1890999012,57cyclictest0-21swapper/110:30:121
188499907,54cyclictest0-21swapper/011:25:270
188499907,53cyclictest0-21swapper/009:05:240
188499907,53cyclictest0-21swapper/009:05:240
188499906,59cyclictest0-21swapper/011:39:290
188499905,55cyclictest0-21swapper/008:09:500
188499904,57cyclictest0-21swapper/008:10:370
1884998914,60cyclictest0-21swapper/007:45:260
1884998856,20cyclictest14-21ksoftirqd/012:10:150
1884998814,61cyclictest0-21swapper/007:55:150
188499874,54cyclictest0-21swapper/008:35:360
1884998713,62cyclictest0-21swapper/010:10:120
1884998712,61cyclictest0-21swapper/012:25:140
1884998652,21cyclictest14-21ksoftirqd/007:30:130
1884998616,58cyclictest0-21swapper/009:55:130
1884998614,60cyclictest0-21swapper/010:45:130
1884998614,59cyclictest0-21swapper/012:20:150
1884998614,59cyclictest0-21swapper/011:55:120
1884998614,59cyclictest0-21swapper/007:35:120
1884998613,60cyclictest0-21swapper/010:30:140
189099848,57cyclictest0-21swapper/110:35:121
189099845,63cyclictest36-21kcompactd010:55:221
1884998413,58cyclictest0-21swapper/007:20:120
1884998412,63cyclictest0-21swapper/011:30:160
1884998412,59cyclictest0-21swapper/007:10:140
1884998313,56cyclictest0-21swapper/012:05:140
1884998312,60cyclictest0-21swapper/011:40:110
1884998312,58cyclictest0-21swapper/007:40:150
1884998231,41cyclictest14-21ksoftirqd/010:55:250
1884998212,59cyclictest0-21swapper/011:05:140
3257028130,38sleep00-21swapper/007:05:120
188499805,69cyclictest0-21swapper/011:22:150
1884998010,59cyclictest0-21swapper/008:00:140
189099789,52cyclictest0-21swapper/110:45:151
188499787,59cyclictest30393-21apt-get10:00:120
188499778,56cyclictest26895-21apt-get09:50:140
188499777,60cyclictest32130-21apt-get10:05:140
189099768,23cyclictest26-21ksoftirqd/108:10:001
189099766,24cyclictest26-21ksoftirqd/110:20:011
188499753,66cyclictest5386-21apt-get08:50:150
189099748,24cyclictest26-21ksoftirqd/109:39:001
1890997429,15cyclictest26-21ksoftirqd/112:00:001
189099734,23cyclictest26-21ksoftirqd/110:05:001
1890997133,24cyclictest0-21swapper/110:05:111
189099713,22cyclictest26-21ksoftirqd/107:37:241
189099704,22cyclictest26-21ksoftirqd/111:25:011
1890997030,23cyclictest26-21ksoftirqd/107:20:001
1890996831,15cyclictest26-21ksoftirqd/108:15:001
1890996824,39cyclictest26-21ksoftirqd/112:03:011
189099676,23cyclictest26-21ksoftirqd/111:45:001
1890996727,27cyclictest26-21ksoftirqd/112:25:111
189099672,47cyclictest0-21swapper/107:30:121
1890996714,19cyclictest1060-21munin-run11:40:011
189099663,23cyclictest26-21ksoftirqd/110:25:001
189099655,23cyclictest26-21ksoftirqd/109:20:311
1890996523,14cyclictest26-21ksoftirqd/111:30:001
1890996513,17cyclictest4661-21runrttasks11:47:561
189099648,24cyclictest26-21ksoftirqd/107:22:411
189099646,24cyclictest26-21ksoftirqd/109:45:221
1890996444,9cyclictest26-21ksoftirqd/110:26:391
1890996425,24cyclictest26-21ksoftirqd/110:10:151
1890996424,21cyclictest26-21ksoftirqd/107:28:031
1890996421,31cyclictest26-21ksoftirqd/108:00:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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