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2025-10-19 - 20:35
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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
Characteristics of the 50 highest latencies:
System rackcslot0.osadl.org (updated Sun Oct 19, 2025 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
551021780,3sleep21548999cyclictest23:21:158
3234421610,2sleep71549599cyclictest22:02:0913
224721390,6sleep151550699cyclictest23:09:577
148602127114,9sleep90-21swapper/919:10:0015
148602127114,9sleep90-21swapper/919:10:0015
147532123106,12sleep20-21swapper/219:08:488
147532123106,12sleep20-21swapper/219:08:488
14844212092,23sleep100-21swapper/1019:09:452
14844212092,23sleep100-21swapper/1019:09:452
180921120,1sleep10-21swapper/123:45:341
180921120,1sleep10-21swapper/123:45:341
14754211290,17sleep30-21swapper/319:08:499
14754211290,17sleep30-21swapper/319:08:499
317921110,1sleep120-21swapper/1200:22:404
14703210982,22sleep80-21swapper/819:08:0614
14703210982,22sleep80-21swapper/819:08:0614
1512421080,2sleep515129-21sh22:35:3311
14702210892,12sleep70-21swapper/719:08:0513
14702210892,12sleep70-21swapper/719:08:0513
1610721070,1sleep130-21swapper/1323:47:065
1610721070,1sleep130-21swapper/1323:47:065
13267210678,21sleep60-21swapper/619:07:1612
13267210678,21sleep60-21swapper/619:07:1612
11576210592,9sleep40-21swapper/419:06:5810
11576210592,9sleep40-21swapper/419:06:5810
1343221020,5sleep91549799cyclictest21:21:1615
11390991020,94rtkit-daemon0-21swapper/1319:10:435
11390991020,94rtkit-daemon0-21swapper/1319:10:435
11761210188,7sleep150-21swapper/1519:07:097
11761210188,7sleep150-21swapper/1519:07:097
461321000,0sleep00-21swapper/023:10:150
1484829981,14sleep140-21swapper/1419:09:496
1484829981,14sleep140-21swapper/1419:09:496
222382980,1sleep20-21swapper/200:35:528
23642970,0sleep130-21swapper/1323:20:535
201252950,2sleep8525-21systemd-journal23:19:1214
184222930,2sleep882-21ksoftirqd/823:01:1714
48502920,1sleep40-21swapper/400:00:0310
1481629275,4sleep110-21swapper/1119:09:303
1481629275,4sleep110-21swapper/1119:09:303
316512910,0sleep60-21swapper/622:41:1112
1482129076,9sleep120-21swapper/1219:09:314
1482129076,9sleep120-21swapper/1219:09:314
325742890,0sleep60-21swapper/600:17:4512
119522890,2sleep12114-21ksoftirqd/1223:21:574
225052870,0sleep70-21swapper/700:01:5913
201092870,2sleep50-21swapper/500:09:2611
275242860,1sleep40-21swapper/421:54:2110
275242860,1sleep40-21swapper/421:54:2110
270282860,1sleep140-21swapper/1422:44:006
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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