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2026-06-15 - 12:10
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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 Jun 15, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2408429624,27sleep00-21swapper/019:06:340
144712930,5sleep014473-21aten2.4-expect23:15:150
24588999119,63cyclictest0-21swapper/019:10:120
275882900,5chrt27591-21netstat19:15:271
2409728926,16sleep10-21swapper/119:06:441
24588998735,46cyclictest30126-21sed22:25:360
24588998665,14cyclictest0-21swapper/021:50:150
228482850,4chrt0-21swapper/120:35:261
24588998425,54cyclictest457-21dbus-daemon20:00:010
2458899798,64cyclictest0-21swapper/022:35:130
2458899795,64cyclictest5030-21apt-get19:45:150
24588997933,40cyclictest29246-21memory19:20:260
24588997925,48cyclictest457-21dbus-daemon21:39:000
2458899789,57cyclictest0-21swapper/022:50:130
2458899786,60cyclictest6864-21apt-get00:25:140
24588997858,10cyclictest14-21ksoftirqd/021:55:130
24588997729,43cyclictest5307-21smartctl21:15:340
2458899772,69cyclictest31742-21taskset19:27:230
24588997723,48cyclictest243-21systemd-journal23:56:110
24588997550,17cyclictest14-21ksoftirqd/021:10:130
2458899753,65cyclictest6791-21aten2.4_r3power19:50:150
24588997523,46cyclictest9513-21cron21:30:000
24588997523,46cyclictest1065-21cut21:05:170
24588997517,51cyclictest6277-21aten2.4-expect21:20:140
2458899749,57cyclictest0-21swapper/019:40:110
2458899746,59cyclictest31612-21apt-get21:00:120
2458899739,51cyclictest0-21swapper/000:00:150
2458899738,51cyclictest0-21swapper/022:05:140
2458899738,50cyclictest0-21swapper/023:05:140
2458899738,50cyclictest0-21swapper/020:45:110
24588997355,10cyclictest14-21ksoftirqd/023:20:130
2458899733,65cyclictest14811-21cron21:45:000
24588997314,52cyclictest0-21swapper/020:55:130
24588997313,52cyclictest0-21swapper/022:20:140
2458899729,53cyclictest0-21swapper/022:30:150
2458899729,53cyclictest0-21swapper/000:05:140
2458899728,52cyclictest0-21swapper/022:45:100
2458899728,51cyclictest0-21swapper/000:20:150
2458899728,49cyclictest0-21swapper/023:00:120
2458899728,49cyclictest0-21swapper/020:50:130
2458899727,56cyclictest14989-21apt-get21:45:160
2458899725,63cyclictest0-21swapper/019:34:530
24588997231,35cyclictest10061-21chrt00:33:570
24588997214,51cyclictest0-21swapper/019:15:130
24593997111,12cyclictest29853-21apt-get20:55:151
2458899719,50cyclictest0-21swapper/020:20:120
2458899717,56cyclictest24640-21apt-get20:40:140
2458899716,53cyclictest10337-21apt-get00:35:130
2458899713,34cyclictest2619-21users19:35:380
24588997110,51cyclictest0-21swapper/023:25:130
2458899709,52cyclictest0-21swapper/020:15:130
2458899709,51cyclictest0-21swapper/020:25:130
2458899709,51cyclictest0-21swapper/020:25:130
2458899709,46cyclictest0-21swapper/021:30:120
2458899707,52cyclictest23504-21apt-get23:40:130
2458899704,47cyclictest562-21runrttasks20:05:000
24588997025,38cyclictest14008-21cpu20:10:160
24588997018,46cyclictest1606-21seq00:10:030
24588997016,48cyclictest457-21dbus-daemon22:40:050
24588997014,48cyclictest26806-21cron23:50:010
2458899699,51cyclictest0-21swapper/023:35:230
2458899699,51cyclictest0-21swapper/020:05:130
2458899698,50cyclictest0-21swapper/023:45:150
2458899698,49cyclictest0-21swapper/022:55:120
2458899697,50cyclictest0-21swapper/020:35:240
24588996911,51cyclictest0-21swapper/022:15:130
2458899689,52cyclictest0-21swapper/022:10:120
2458899688,50cyclictest0-21swapper/020:30:130
24593996724,29cyclictest0-21swapper/100:25:141
2458899678,49cyclictest0-21swapper/000:15:130
24593996637,19cyclictest16726-21apt-get21:50:141
2458899668,51cyclictest0-21swapper/023:30:120
2458899664,51cyclictest0-21swapper/023:10:110
24593996533,17cyclictest17911-21apt-get23:25:131
2458899652,44cyclictest20483-21sort22:00:170
24593996435,15cyclictest18463-21apt-get21:55:131
24593996431,21cyclictest5125-21apt-get00:20:151
24593996425,28cyclictest3290-21apt-get19:40:121
24593996234,17cyclictest7380-21apt-get22:55:121
24593996233,15cyclictest32261-21apt-get00:05:141
24593996232,17cyclictest8508-21apt-get19:55:131
24593996225,23cyclictest30740-21apt-get22:30:151
24593996224,27cyclictest28689-21apt-get19:20:131
24593996222,23cyclictest6093-21wc21:20:011
24593996134,17cyclictest26375-21apt-get20:45:111
24593996132,18cyclictest24667-21apt-get19:10:121
24593996126,22cyclictest26996-21taskset23:50:151
24593996124,27cyclictest9139-21apt-get23:00:121
24593996123,25cyclictest15541-21apt-get20:15:131
24593996121,18cyclictest26-21ksoftirqd/119:50:111
24593996037,17cyclictest26-21ksoftirqd/121:20:151
24593996035,15cyclictest21965-21apt-get22:05:141
24593996034,11cyclictest23320-21cron23:40:001
24593996033,15cyclictest11433-21apt-get21:35:131
24593996033,13cyclictest25247-21apt-get23:45:131
24593996032,14cyclictest20777-21apt-get20:30:131
24593996031,15cyclictest3362-21apt-get00:15:131
24593996026,19cyclictest32476-21apt-get22:35:101
24593996024,26cyclictest0-21swapper/100:10:131
24593996022,25cyclictest1483-21apt-get19:35:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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