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2026-05-22 - 09:59
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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 50 highest latencies:
System rackaslot8.osadl.org (updated Fri May 22, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
225222290260,19sleep20-21swapper/219:06:402
226172270238,21sleep30-21swapper/319:07:373
227462264232,22sleep10-21swapper/119:09:171
225142264235,19sleep00-21swapper/019:06:350
138092620,0sleep00-21swapper/021:30:050
280262590,0sleep20-21swapper/220:30:132
280262590,0sleep20-21swapper/220:30:122
133262590,0sleep10-21swapper/122:09:111
59052560,0sleep30-21swapper/322:24:113
272752560,0sleep20-21swapper/220:30:012
185692550,0sleep10-21swapper/121:32:331
204582530,0sleep00-21swapper/022:51:270
64852140,0sleep10-21swapper/123:03:011
156682140,0sleep30-21swapper/323:08:303
243402100,0sleep20-21swapper/200:32:142
2288999109,1cyclictest34-21ksoftirqd/320:15:013
27371280,0sleep10-21swapper/123:15:181
25896280,0sleep30-21swapper/322:55:133
228889986,1cyclictest959-21users22:20:202
228889981,6cyclictest9989-21sed21:00:212
228869987,1cyclictest12-21ksoftirqd/000:40:010
228869986,2cyclictest12-21ksoftirqd/021:09:590
228869984,3cyclictest275-21systemd-journal21:04:590
28561270,1sleep1211rcuc/123:35:271
228899976,1cyclictest34-21ksoftirqd/300:25:013
228899976,1cyclictest30223-21ssh22:19:323
228899975,1cyclictest34-21ksoftirqd/323:20:013
228899973,3cyclictest658-21snmpd23:30:533
228899973,3cyclictest32207-21cut22:40:023
228899972,3cyclictest275-21systemd-journal22:02:133
228899972,1cyclictest0-21swapper/323:35:203
228899970,6cyclictest275-21systemd-journal19:40:493
228889976,1cyclictest28-21ksoftirqd/223:15:012
228889976,1cyclictest28-21ksoftirqd/222:40:012
228889973,3cyclictest658-21snmpd22:30:012
228889973,3cyclictest275-21systemd-journal20:09:352
228889973,2cyclictest275-21systemd-journal22:14:462
228889971,1cyclictest141rcu_preempt22:50:112
228889971,1cyclictest141rcu_preempt22:03:202
228889970,4cyclictest28-21ksoftirqd/223:35:112
228879975,1cyclictest22412-21ssh21:55:021
228879973,2cyclictest275-21systemd-journal22:28:051
228869976,1cyclictest12-21ksoftirqd/022:00:010
228869973,1cyclictest0-21swapper/023:00:580
228869972,3cyclictest560-21gdbus23:55:010
228869970,7cyclictest0-21swapper/023:09:250
228869970,3cyclictest101401cat23:45:010
19103270,1sleep119101-21ssh23:50:141
13105270,0sleep10-21swapper/123:06:331
228899964,2cyclictest15763-21memory22:10:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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