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2026-04-21 - 22:24
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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 Tue Apr 21, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2115621040,7chrt21158-21latency_hist10:30:020
1413829713,38sleep00-21swapper/007:07:270
1456899915,54cyclictest0-21swapper/112:00:321
1456899898,53cyclictest0-21swapper/107:35:361
1456899897,54cyclictest0-21swapper/109:45:301
176692880,5sleep1251rcuc/107:15:321
14564998821,52cyclictest0-21swapper/010:55:170
1456899876,72cyclictest0-21swapper/110:50:141
1456899873,76cyclictest562-21runrttasks07:50:151
14564998719,59cyclictest0-21swapper/008:30:130
1456499866,19cyclictest30035-21apt-get12:25:130
1456899856,70cyclictest0-21swapper/110:35:161
1456899855,52cyclictest0-21swapper/108:25:111
14568998510,67cyclictest0-21swapper/108:45:121
1413328529,45sleep10-21swapper/107:07:241
1456899849,68cyclictest0-21swapper/107:25:141
1456899849,67cyclictest0-21swapper/111:05:131
14564998414,60cyclictest0-21swapper/012:10:130
14564998414,54cyclictest0-21swapper/010:05:110
1456899839,42cyclictest0-21swapper/108:35:311
1456899837,46cyclictest0-21swapper/108:00:211
1456899837,45cyclictest0-21swapper/110:25:221
1456899836,69cyclictest0-21swapper/111:00:111
1456899835,48cyclictest0-21swapper/109:35:161
14568998312,64cyclictest0-21swapper/111:15:131
14568998311,64cyclictest0-21swapper/111:30:131
14568998310,65cyclictest0-21swapper/110:00:121
14564998315,57cyclictest0-21swapper/010:35:170
1456899829,66cyclictest0-21swapper/112:15:131
1456899828,67cyclictest0-21swapper/109:05:131
1456899825,72cyclictest0-21swapper/108:10:001
1456899825,72cyclictest0-21swapper/108:10:001
14564998215,56cyclictest0-21swapper/011:40:120
1456899817,67cyclictest0-21swapper/109:40:121
1456899816,68cyclictest0-21swapper/108:15:131
1456899816,67cyclictest0-21swapper/107:45:141
14568998110,63cyclictest0-21swapper/110:45:121
14564998125,51cyclictest457-21dbus-daemon09:39:590
14564998121,55cyclictest21847-21ls09:00:000
1456899807,64cyclictest0-21swapper/107:20:141
1456899807,63cyclictest0-21swapper/111:25:121
1456899806,66cyclictest0-21swapper/112:25:161
1456899806,66cyclictest0-21swapper/110:20:131
1456899806,64cyclictest12376-21apt-get10:05:121
1456899806,44cyclictest0-21swapper/108:20:191
1456899805,67cyclictest0-21swapper/108:55:141
1456899805,45cyclictest0-21swapper/111:40:361
14568998038,30cyclictest26-21ksoftirqd/109:30:121
14564998025,49cyclictest24336-31find07:35:230
14564998015,57cyclictest0-21swapper/007:45:120
14564998015,56cyclictest0-21swapper/008:05:240
14564998015,56cyclictest0-21swapper/008:05:240
1456899797,65cyclictest0-21swapper/110:30:231
1456899797,65cyclictest0-21swapper/109:55:131
1456899797,65cyclictest0-21swapper/107:30:141
1456899797,63cyclictest0-21swapper/109:50:131
14568997911,59cyclictest0-21swapper/108:30:141
1456499797,20cyclictest32541-21apt-get09:30:120
1456499797,20cyclictest30803-21apt-get09:25:120
1456499796,18cyclictest5405-21apt-get09:45:130
1456499794,68cyclictest10283-21latency08:25:360
14564997916,56cyclictest20465-21aten2.4-expect07:25:160
14564997914,55cyclictest0-21swapper/012:30:140
1456899789,62cyclictest0-21swapper/111:55:191
1456899788,56cyclictest0-21swapper/111:45:051
1456899787,62cyclictest0-21swapper/107:55:121
1456899786,65cyclictest0-21swapper/111:50:131
1456899786,65cyclictest0-21swapper/109:00:141
1456899786,64cyclictest0-21swapper/111:20:131
1456899786,64cyclictest0-21swapper/108:40:151
1456899785,58cyclictest24794-21apt-get12:10:131
14568997812,59cyclictest0-21swapper/110:55:161
1456499787,20cyclictest1089-21apt-get12:35:150
1456499783,69cyclictest25903-21df09:10:220
14564997827,44cyclictest243-21systemd-journal07:45:000
14564997821,24cyclictest0-21swapper/009:24:440
14564997821,18cyclictest243-21systemd-journal09:59:150
14564997815,48cyclictest0-21swapper/011:45:130
14564997812,55cyclictest0-21swapper/010:45:110
1456899777,62cyclictest0-21swapper/107:10:131
1456899776,62cyclictest0-21swapper/108:10:131
1456499779,59cyclictest36-21kcompactd009:40:110
1456499778,22cyclictest22032-21apt-get09:00:130
1456499777,21cyclictest21457-21apt-get10:30:240
1456499777,17cyclictest21259-21apt-get12:00:100
1456499774,67cyclictest455-21rs:main0
14564997729,38cyclictest243-21systemd-journal08:44:000
14564997725,13cyclictest8205-21cron11:25:000
14564997717,21cyclictest457-21dbus-daemon11:20:010
14564997715,52cyclictest0-21swapper/011:00:140
14564997712,53cyclictest0-21swapper/008:15:120
1456899768,60cyclictest0-21swapper/109:15:121
1456899767,62cyclictest0-21swapper/110:40:151
1456899766,62cyclictest0-21swapper/109:20:131
1456899766,61cyclictest0-21swapper/109:25:121
1456899765,65cyclictest0-21swapper/111:35:251
1456899765,63cyclictest0-21swapper/107:40:141
14568997612,57cyclictest0-21swapper/112:30:151
1456499767,21cyclictest27303-21apt-get09:15:140
1456499767,20cyclictest3145-21apt-get11:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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