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2025-08-27 - 14:37
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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 Wed Aug 27, 2025 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
755999126100,17cyclictest14-21ksoftirqd/010:45:140
7089212549,44sleep10-21swapper/107:06:471
75599911178,20cyclictest14-21ksoftirqd/010:00:140
75599910878,19cyclictest14-21ksoftirqd/012:15:130
75599910311,26cyclictest0-21swapper/010:55:160
7559999962,24cyclictest0-21swapper/012:30:140
7559999961,26cyclictest14-21ksoftirqd/008:00:160
7564999711,27cyclictest0-21swapper/108:45:151
7559999756,30cyclictest14-21ksoftirqd/008:10:140
7564999414,26cyclictest0-21swapper/107:30:161
7564999312,27cyclictest0-21swapper/111:30:151
7559999352,29cyclictest0-21swapper/007:40:140
7559999343,37cyclictest14-21ksoftirqd/012:35:140
7564999212,59cyclictest0-21swapper/108:40:241
7564999211,27cyclictest0-21swapper/111:10:131
755999916,68cyclictest19663-21diskmemload09:10:130
7559999143,34cyclictest14-21ksoftirqd/008:05:240
183112910,6sleep00-21swapper/010:35:390
7564999023,23cyclictest420-21dbus-daemon11:00:001
7559999037,41cyclictest14-21ksoftirqd/011:55:160
7559998941,36cyclictest0-21swapper/007:50:140
7559998941,34cyclictest14-21ksoftirqd/009:15:170
7559998914,63cyclictest0-21swapper/008:50:240
7559998914,62cyclictest0-21swapper/007:15:170
7559998912,65cyclictest0-21swapper/009:50:160
7559998911,63cyclictest0-21swapper/009:55:140
7559998845,31cyclictest14-21ksoftirqd/008:15:140
7559998813,62cyclictest0-21swapper/009:00:140
7559998812,62cyclictest0-21swapper/009:20:150
7559998811,61cyclictest0-21swapper/011:15:160
7564998710,34cyclictest10044-21apt-get10:15:141
755999876,64cyclictest594-21runrttasks10:05:150
755999876,59cyclictest10454-21seq08:45:140
7559998744,31cyclictest14-21ksoftirqd/007:55:140
7559998736,36cyclictest14-21ksoftirqd/009:05:170
7559998712,64cyclictest0-21swapper/007:20:170
7559998710,63cyclictest0-21swapper/012:05:160
7559998710,61cyclictest0-21swapper/010:10:130
7564998610,35cyclictest12490-21apt-get08:50:151
755999869,61cyclictest594-21runrttasks11:20:140
755999869,61cyclictest0-21swapper/007:35:170
7559998612,63cyclictest0-21swapper/008:55:120
7559998612,63cyclictest0-21swapper/008:55:120
7559998611,62cyclictest0-21swapper/011:35:150
7559998611,61cyclictest0-21swapper/010:50:150
755999856,63cyclictest25091-21taskset09:25:180
7559998511,62cyclictest0-21swapper/011:30:160
7559998510,60cyclictest0-21swapper/008:25:140
7559998431,39cyclictest14-21ksoftirqd/010:40:130
7559998412,55cyclictest0-21swapper/011:40:140
7559998411,60cyclictest0-21swapper/009:45:140
7564998334,28cyclictest0-21swapper/108:15:131
7564998312,28cyclictest0-21swapper/107:40:131
7559998311,57cyclictest0-21swapper/008:30:130
7559998310,59cyclictest0-21swapper/011:05:150
755999817,57cyclictest0-21swapper/012:00:160
7559997935,33cyclictest0-21swapper/012:25:130
7559997917,43cyclictest14-21ksoftirqd/010:15:160
583927930,37sleep00-21swapper/007:05:140
7559997824,15cyclictest14-21ksoftirqd/009:35:000
755999773,52cyclictest0-21swapper/009:35:150
7559997727,15cyclictest14-21ksoftirqd/010:30:010
7559997633,33cyclictest14-21ksoftirqd/011:00:110
7559997629,31cyclictest0-21swapper/007:25:150
7559997629,31cyclictest0-21swapper/007:25:150
7559997625,28cyclictest0-21swapper/010:30:120
756499749,39cyclictest28494-21apt-get08:05:161
7564997455,11cyclictest22805-21apt-get10:50:141
755999742,52cyclictest0-21swapper/011:10:140
755999733,52cyclictest0-21swapper/011:50:230
7559997225,28cyclictest14-21ksoftirqd/008:20:160
7559997129,27cyclictest0-21swapper/010:20:150
755999705,45cyclictest0-21swapper/011:25:170
7559997028,28cyclictest14-21ksoftirqd/009:40:130
7559997026,28cyclictest14-21ksoftirqd/007:10:280
7559997021,30cyclictest0-21swapper/007:30:170
7559997013,35cyclictest0-21swapper/012:10:130
7559997012,37cyclictest0-21swapper/011:45:120
7559996911,36cyclictest0-21swapper/012:20:120
7559996911,35cyclictest8706-21apt-get08:40:150
7559996813,33cyclictest0-21swapper/008:35:150
7559996812,36cyclictest0-21swapper/007:45:140
756499639,32cyclictest11745-21apt-get11:50:141
7564996313,31cyclictest0-21swapper/107:45:151
756499613,50cyclictest18113-21missed_timers07:35:311
7564996132,10cyclictest151rcu_preempt11:45:161
756499603,50cyclictest18039-21/usr/sbin/munin09:06:011
756499596,16cyclictest15256-21apt-get12:00:141
7564995921,34cyclictest0-21swapper/109:56:391
7564995738,11cyclictest26-21ksoftirqd/111:40:011
756499566,44cyclictest0-21swapper/108:14:021
7564995639,10cyclictest26-21ksoftirqd/111:25:361
7564995638,10cyclictest26-21ksoftirqd/112:25:181
7564995537,10cyclictest26-21ksoftirqd/108:35:001
756499545,43cyclictest0-21swapper/107:55:251
756499545,43cyclictest0-21swapper/107:10:461
756499545,16cyclictest916-21apt-get11:20:141
7564995439,10cyclictest0-21swapper/109:12:361
7564995414,12cyclictest26-21ksoftirqd/112:35:001
756499533,11cyclictest16461-21grep10:30:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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