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2026-05-21 - 16:56
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6.osadl.org (updated Thu May 21, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
310659913810,38cyclictest0-21swapper/109:20:121
310619911988,21cyclictest14-21ksoftirqd/008:50:120
310619911182,19cyclictest14-21ksoftirqd/010:15:130
310619911181,16cyclictest14-21ksoftirqd/012:15:130
310619910876,20cyclictest14-21ksoftirqd/010:55:110
310659910764,31cyclictest26-21ksoftirqd/109:25:111
310619910569,23cyclictest14-21ksoftirqd/009:45:160
310619910512,78cyclictest0-21swapper/011:15:150
310619910411,79cyclictest0-21swapper/007:35:100
310619910411,79cyclictest0-21swapper/007:10:110
310619910218,71cyclictest0-21swapper/010:45:240
31065991019,76cyclictest1460-21chrt11:50:101
31061999968,20cyclictest14-21ksoftirqd/010:20:130
31061999950,36cyclictest14-21ksoftirqd/008:10:130
31061999913,31cyclictest0-21swapper/010:10:120
31061999864,23cyclictest14-21ksoftirqd/010:00:130
31061999861,24cyclictest14-21ksoftirqd/008:25:150
31061999812,73cyclictest0-21swapper/010:50:120
170642980,6sleep017062-21grep08:00:010
31061999761,25cyclictest14-21ksoftirqd/010:40:230
31061999759,25cyclictest14-21ksoftirqd/008:00:140
31061999758,27cyclictest14-21ksoftirqd/008:30:120
31061999758,26cyclictest14-21ksoftirqd/012:05:230
31061999660,23cyclictest0-21swapper/009:35:130
31061999558,27cyclictest14-21ksoftirqd/011:20:130
31061999511,70cyclictest0-21swapper/012:10:120
31061999231,46cyclictest9465-21diskmemload09:10:120
31061999155,24cyclictest0-21swapper/011:35:150
31061999153,27cyclictest14-21ksoftirqd/008:35:140
31061999145,32cyclictest14-21ksoftirqd/012:20:120
31061999048,32cyclictest14-21ksoftirqd/010:35:120
3106199897,68cyclictest31053-21cyclictest12:30:130
31061998951,27cyclictest14-21ksoftirqd/009:30:140
31061998948,30cyclictest14-21ksoftirqd/007:45:150
31061998946,32cyclictest14-21ksoftirqd/009:55:130
31061998845,31cyclictest14-21ksoftirqd/011:10:130
31061998823,32cyclictest3612-21aten2.4-expect10:25:160
31061998723,53cyclictest0-21swapper/012:25:110
31061998721,46cyclictest0-21swapper/009:15:160
31061998712,60cyclictest0-21swapper/009:20:150
31061998711,61cyclictest0-21swapper/011:05:120
31061998620,47cyclictest0-21swapper/007:50:110
31061998610,25cyclictest0-21swapper/008:05:150
31061998511,60cyclictest0-21swapper/011:30:130
3106199847,63cyclictest10223-21chrt07:40:150
31061998430,37cyclictest14-21ksoftirqd/010:30:150
31061998427,24cyclictest7375-21runrttasks07:30:330
31061998411,59cyclictest0-21swapper/011:40:130
31061998411,58cyclictest0-21swapper/008:20:120
3106199839,60cyclictest3054-21seq07:20:140
31061998337,34cyclictest14-21ksoftirqd/010:05:150
31061998330,30cyclictest20158-21/usr/sbin/munin09:40:320
31061998311,57cyclictest0-21swapper/008:15:140
3004028329,43sleep00-21swapper/007:05:260
31061998211,57cyclictest0-21swapper/011:55:130
31061998118,43cyclictest0-21swapper/008:45:230
31061998033,20cyclictest924-21diskstats07:15:060
31061998029,28cyclictest562-21runrttasks11:45:210
31061998019,43cyclictest0-21swapper/009:05:140
3106199799,52cyclictest0-21swapper/007:25:120
31061997910,55cyclictest0-21swapper/011:25:150
3106599789,19cyclictest0-21swapper/110:25:141
31061997837,30cyclictest0-21swapper/009:00:110
31061997828,25cyclictest562-21runrttasks12:35:140
31061997827,25cyclictest562-21runrttasks09:25:190
31061997825,30cyclictest25216-21turbostat09:55:000
31061997729,24cyclictest562-21runrttasks08:40:210
31061997729,20cyclictest5306-21runrttasks12:00:220
31061997726,23cyclictest562-21runrttasks11:55:000
31061997631,32cyclictest0-21swapper/008:55:120
31065997528,27cyclictest0-21swapper/109:50:131
3074927524,41sleep10-21swapper/107:08:401
31061997415,30cyclictest0-21swapper/011:00:110
31065996851,10cyclictest26-21ksoftirqd/109:40:351
31065996822,13cyclictest26-21ksoftirqd/108:45:051
31065996440,10cyclictest503-21snmpd10:09:521
31065996435,14cyclictest32404-21/usr/sbin/munin10:15:121
31065996413,32cyclictest0-21swapper/111:55:101
31065996338,9cyclictest16747-21telnet09:30:171
31065996310,35cyclictest0-21swapper/108:55:111
31065996218,27cyclictest0-21swapper/110:35:141
31065996214,30cyclictest0-21swapper/111:20:131
3106599619,32cyclictest9076-21apt-get10:40:161
31065996139,17cyclictest26-21ksoftirqd/108:19:131
31065996114,32cyclictest0-21swapper/107:55:121
31065996114,27cyclictest0-21swapper/112:25:121
31065996113,31cyclictest0-21swapper/112:00:121
31065996113,31cyclictest0-21swapper/108:05:121
31065996112,43cyclictest0-21swapper/109:35:271
31065996043,11cyclictest503-21snmpd12:38:401
31065996043,10cyclictest26-21ksoftirqd/111:40:371
31065996039,12cyclictest26-21ksoftirqd/109:00:311
31065996027,14cyclictest26-21ksoftirqd/107:45:011
31065995944,9cyclictest26-21ksoftirqd/111:45:241
3106599589,43cyclictest0-21swapper/112:15:331
31065995842,9cyclictest26-21ksoftirqd/110:45:351
31065995842,9cyclictest26-21ksoftirqd/108:40:011
31065995823,13cyclictest26-21ksoftirqd/107:17:381
31065995812,26cyclictest0-21swapper/108:50:141
3106599578,45cyclictest0-21swapper/107:46:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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