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2026-08-31 - 22:36
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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 100 highest latencies:
System rack3slot6.osadl.org (updated Mon Aug 31, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202839912544,69cyclictest26-21ksoftirqd/109:35:111
202839912068,39cyclictest26-21ksoftirqd/107:10:131
202789912012,33cyclictest0-21swapper/008:45:160
202789911913,34cyclictest0-21swapper/010:50:140
202789911811,34cyclictest0-21swapper/012:10:140
202789911810,29cyclictest0-21swapper/007:50:140
202789911810,29cyclictest0-21swapper/007:15:130
202789911712,33cyclictest0-21swapper/007:25:160
202789911610,43cyclictest31594-31find07:40:130
202789911610,32cyclictest0-21swapper/008:00:150
202789911512,28cyclictest0-21swapper/009:25:130
202789911511,34cyclictest0-21swapper/008:25:140
202789911412,32cyclictest0-21swapper/010:45:150
202789911411,28cyclictest0-21swapper/008:55:150
202789911311,34cyclictest0-21swapper/007:55:240
202789911311,33cyclictest0-21swapper/007:35:230
202839911269,26cyclictest0-21swapper/111:20:121
202839911229,29cyclictest0-21swapper/110:35:231
202789911216,32cyclictest0-21swapper/011:25:140
202789911116,37cyclictest20271-21cyclictest08:30:160
202839910753,33cyclictest26-21ksoftirqd/109:05:141
1299821060,5chrt13002-21sed09:45:361
20278991029,45cyclictest14-21ksoftirqd/010:20:140
202789910210,44cyclictest22475-21latency_hist10:15:020
202789910112,30cyclictest0-21swapper/008:10:120
202839910037,46cyclictest20596-21sshd11:40:151
20283999810,68cyclictest0-21swapper/108:35:121
20283999713,60cyclictest0-21swapper/111:15:141
20283999711,63cyclictest0-21swapper/108:20:111
20283999615,17cyclictest0-21swapper/112:35:141
20283999612,59cyclictest0-21swapper/110:05:101
20283999513,62cyclictest0-21swapper/112:25:131
20283999513,62cyclictest0-21swapper/107:55:251
20283999512,63cyclictest0-21swapper/109:30:241
20283999441,34cyclictest26-21ksoftirqd/111:35:241
20283999411,60cyclictest0-21swapper/110:15:111
20283999212,57cyclictest0-21swapper/109:40:111
20283999211,24cyclictest0-21swapper/107:30:121
20283999111,55cyclictest0-21swapper/111:55:121
20283999110,57cyclictest0-21swapper/112:30:121
2028399909,61cyclictest0-21swapper/110:40:141
2028399908,60cyclictest0-21swapper/112:05:121
2028399908,59cyclictest0-21swapper/110:20:131
20283999012,59cyclictest0-21swapper/111:50:131
20283999012,59cyclictest0-21swapper/111:50:131
20283999011,58cyclictest0-21swapper/107:20:121
2028399898,61cyclictest0-21swapper/110:00:121
20283998911,57cyclictest0-21swapper/110:30:141
20283998812,55cyclictest0-21swapper/110:45:131
2028399877,62cyclictest0-21swapper/109:00:151
2028399876,61cyclictest0-21swapper/110:50:131
20283998716,52cyclictest0-21swapper/108:05:251
20283998611,56cyclictest0-21swapper/112:15:121
20283998611,54cyclictest0-21swapper/108:00:131
2028399858,59cyclictest0-21swapper/111:30:131
2028399858,59cyclictest0-21swapper/109:50:111
20283998512,52cyclictest0-21swapper/108:30:151
20283998511,52cyclictest0-21swapper/112:20:121
20283998511,52cyclictest0-21swapper/112:10:131
2028399847,59cyclictest0-21swapper/108:15:141
2028399847,57cyclictest0-21swapper/111:00:121
20283998435,30cyclictest0-21swapper/110:25:121
2028399838,58cyclictest0-21swapper/109:55:121
20283998310,54cyclictest0-21swapper/111:05:141
2028399828,56cyclictest0-21swapper/110:55:131
2028399828,54cyclictest0-21swapper/109:25:101
2028399827,58cyclictest0-21swapper/112:00:141
2028399827,58cyclictest0-21swapper/111:10:091
2028399827,58cyclictest0-21swapper/108:10:131
20283998235,29cyclictest26-21ksoftirqd/109:10:141
1899128239,25sleep10-21swapper/107:05:211
20283998118,36cyclictest562-21runrttasks07:29:151
2028399808,57cyclictest0-21swapper/108:55:141
2028399807,57cyclictest0-21swapper/109:20:111
20283998011,51cyclictest0-21swapper/111:45:131
2028399799,53cyclictest0-21swapper/109:15:221
2028399799,53cyclictest0-21swapper/109:15:221
2028399798,53cyclictest0-21swapper/108:40:151
2028399798,52cyclictest0-21swapper/107:35:261
2028399797,55cyclictest0-21swapper/107:50:131
2028399797,54cyclictest0-21swapper/107:45:121
20283997931,31cyclictest0-21swapper/108:50:121
2028399788,52cyclictest0-21swapper/107:15:141
20278997832,40cyclictest14-21ksoftirqd/012:05:190
2028399778,53cyclictest0-21swapper/110:10:131
2028399757,53cyclictest0-21swapper/108:45:141
2028399757,52cyclictest0-21swapper/111:25:161
20278997334,23cyclictest503-21snmpd08:42:530
2007627348,17sleep00-21swapper/007:09:220
20278997230,31cyclictest0-21swapper/011:40:130
2028399715,60cyclictest0-21swapper/108:25:331
2027899705,56cyclictest6726-21apt-get09:30:170
2028399697,55cyclictest31825-21apt-get07:40:121
20278996913,42cyclictest8732-21apt-get08:05:150
20278996854,8cyclictest14-21ksoftirqd/008:20:010
20278996828,9cyclictest14-21ksoftirqd/011:05:370
20278996812,46cyclictest14-21ksoftirqd/010:40:130
20278996727,9cyclictest14-21ksoftirqd/011:20:200
20278996636,23cyclictest14-21ksoftirqd/011:36:290
20278996633,24cyclictest14-21ksoftirqd/007:20:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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