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2026-09-16 - 06:53
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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 rackdslot0.osadl.org (updated Wed Sep 16, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1764799260,19cyclictest21156-21cut20:10:192
1764799230,5cyclictest0-21swapper/200:14:332
1764699230,7cyclictest0-21swapper/121:10:431
1764599231,18cyclictest0-21swapper/020:25:180
1764699210,7cyclictest843-21systemd-network20:46:011
1764799204,1cyclictest0-21swapper/221:59:142
17647992018,1cyclictest0-21swapper/219:35:182
17647992016,3cyclictest0-21swapper/221:16:052
1764799200,19cyclictest399-20systemd-journal22:32:352
17645992018,1cyclictest0-21swapper/020:40:140
1764599200,19cyclictest880-21rs:main0
1764799193,1cyclictest0-21swapper/221:31:262
1764799192,2cyclictest21555-21nfsd422:05:172
1764799192,16cyclictest17664-21cut23:55:142
17647991917,1cyclictest0-21swapper/223:05:002
17647991917,1cyclictest0-21swapper/219:14:552
17646991917,1cyclictest0-21swapper/122:15:461
1764699191,17cyclictest0-21swapper/100:25:171
1764699190,5cyclictest0-21swapper/121:04:421
1764699190,1cyclictest0-21swapper/121:41:591
1764699190,18cyclictest0-21swapper/121:35:011
1764599193,15cyclictest0-21swapper/022:59:020
17645991917,1cyclictest0-21swapper/023:51:320
17645991916,2cyclictest18952-21cut23:55:210
1764599190,18cyclictest843-21systemd-network20:33:090
1764599190,18cyclictest0-21swapper/019:19:090
1764799183,1cyclictest0-21swapper/223:52:152
17647991816,1cyclictest9829-21timerwakeupswit00:35:222
17647991816,1cyclictest28-21ksoftirqd/223:37:262
17647991816,1cyclictest0-21swapper/221:38:392
17647991815,2cyclictest31332-21chrt21:25:222
1764799180,3cyclictest3983-21H222:10:212
1764799180,17cyclictest7170-21timerwakeupswit00:30:232
1764799180,17cyclictest18899-21ntpq22:00:212
1764699182,15cyclictest0-21swapper/120:04:111
17646991814,3cyclictest8156-21grep00:35:131
17646991814,3cyclictest22133-21anvil20:16:271
1764699181,2cyclictest18660-21grep23:55:191
1764699181,16cyclictest3450-21gsd-color20:40:011
17646991810,7cyclictest0-21swapper/122:50:181
1764699180,17cyclictest843-21systemd-network19:44:431
1764699180,17cyclictest843-21systemd-network19:44:431
1764699180,15cyclictest0-21swapper/123:05:181
1764599182,1cyclictest0-21swapper/019:59:300
1764599182,15cyclictest147562sleep020:56:200
1764599182,15cyclictest0-21swapper/022:30:270
17645991813,3cyclictest0-21swapper/020:50:130
1764599180,17cyclictest27763-21apt20:25:000
1764599180,17cyclictest26616-21tlsmgr00:28:200
1764599180,17cyclictest12756-21perf22:50:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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