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2026-08-07 - 22:16
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Fri Aug 07, 2026 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1177699230,5cyclictest0-21swapper/212:32:472
1176799236,14cyclictest0-21swapper/009:30:510
1176799236,14cyclictest0-21swapper/009:30:510
1177699225,8cyclictest0-21swapper/207:55:402
1177699210,17cyclictest0-21swapper/211:55:172
1176799210,20cyclictest843-21systemd-network10:08:230
1177699200,19cyclictest843-21systemd-network09:13:152
11771992018,1cyclictest21-21ksoftirqd/110:22:221
1177199200,19cyclictest843-21systemd-network08:27:271
1177199200,19cyclictest3989-21H222:10:211
11767992017,2cyclictest11436-21idleruntime10:55:150
11767992012,4cyclictest0-21swapper/010:11:070
1177699192,2cyclictest3979-21H222:10:212
11776991917,1cyclictest28-21ksoftirqd/208:47:472
11776991917,1cyclictest28-21ksoftirqd/207:11:232
1177699190,2cyclictest3991-21H222:10:212
1177699190,2cyclictest3989-21H222:10:212
1177699190,18cyclictest3989-21H222:10:212
1177699190,17cyclictest6581-21nfsd410:45:172
1177699190,16cyclictest4035-21H222:10:212
1177699190,16cyclictest4035-21H222:10:212
1177699190,16cyclictest3991-21H222:10:212
1177699190,16cyclictest3989-21H222:10:212
1177699190,16cyclictest3989-21H222:10:212
1177699190,16cyclictest3983-21H222:10:212
1177199193,15cyclictest21-21ksoftirqd/111:50:341
1177199192,2cyclictest14390-21latency11:00:171
11771991916,2cyclictest3981-21H222:10:211
11771991914,2cyclictest0-21swapper/111:05:141
1177199191,2cyclictest3987-21H222:10:211
1177199190,3cyclictest32662-21nfsd408:40:161
1177199190,2cyclictest3979-21H222:10:211
1177199190,16cyclictest4035-21H222:10:211
1177199190,16cyclictest3983-21H222:10:211
1176799192,15cyclictest4035-21H222:10:210
1176799191,15cyclictest23055-21needreboot09:20:160
1176799190,2cyclictest3987-21H222:10:210
1176799190,16cyclictest4035-21H222:10:210
1177699182,15cyclictest205942sleep212:10:002
11776991816,1cyclictest28-21ksoftirqd/210:41:122
11776991816,1cyclictest0-21swapper/211:15:132
11776991816,1cyclictest0-21swapper/211:15:132
11776991814,3cyclictest4099-21H222:10:212
11776991814,3cyclictest3991-21H222:10:212
11776991814,3cyclictest3981-21H222:10:212
11776991814,3cyclictest3976-21H222:10:212
1177699181,16cyclictest3145-21apache208:25:002
1177699180,2cyclictest3989-21H222:10:212
1177699180,2cyclictest3989-21H222:10:212
1177699180,2cyclictest3987-21H222:10:212
1177699180,2cyclictest3981-21H222:10:212
1177699180,17cyclictest4035-21H222:10:212
1177699180,17cyclictest3991-21H222:10:212
1177699180,17cyclictest3976-21H222:10:212
1177699180,17cyclictest1416-21basename08:45:002
1177699180,16cyclictest4099-21H222:10:212
1177699180,16cyclictest3989-21H222:10:212
1177699180,16cyclictest3976-21H222:10:212
1177699180,15cyclictest3989-21H222:10:212
1177199182,15cyclictest21-21ksoftirqd/111:41:211
11771991816,1cyclictest0-21swapper/111:58:281
11771991815,2cyclictest21877-21nfsd410:15:201
11771991814,3cyclictest3989-21H222:10:211
11771991814,3cyclictest3989-21H222:10:211
11771991814,3cyclictest3981-21H222:10:211
1177199180,3cyclictest1516-21lxd10:42:431
1177199180,2cyclictest4099-21H222:10:211
1177199180,2cyclictest3985-21H222:10:211
1177199180,17cyclictest4099-21H222:10:211
1177199180,17cyclictest4099-21H222:10:211
1177199180,17cyclictest3987-21H222:10:211
1177199180,17cyclictest3983-21H222:10:211
1177199180,17cyclictest3981-21H222:10:211
1177199180,17cyclictest3976-21H222:10:211
1177199180,17cyclictest3976-21H222:10:211
1177199180,17cyclictest21852-21/usr/sbin/munin09:20:131
1177199180,16cyclictest3983-21H222:10:211
1177199180,16cyclictest12248-21cpuspeed_turbos07:10:121
1177199180,15cyclictest4099-21H222:10:211
1177199180,15cyclictest3979-21H222:10:211
1176799183,1cyclictest29860-21grep12:25:150
1176799182,15cyclictest0-21swapper/012:22:270
11767991817,1cyclictest9-21ksoftirqd/008:15:380
11767991815,2cyclictest6593-21cat08:50:200
11767991815,2cyclictest15186-21cat11:00:210
11767991813,2cyclictest3991-21H222:10:210
11767991813,2cyclictest3989-21H222:10:210
1176799181,16cyclictest32113-21cut12:30:140
1176799180,3cyclictest3983-21H222:10:210
1176799180,3cyclictest3976-21H222:10:210
1176799180,2cyclictest4035-21H222:10:210
1176799180,2cyclictest3989-21H222:10:210
1176799180,2cyclictest3985-21H222:10:210
1176799180,2cyclictest3983-21H222:10:210
1176799180,2cyclictest3981-21H222:10:210
1176799180,2cyclictest3981-21H222:10:210
1176799180,17cyclictest4099-21H222:10:210
1176799180,17cyclictest4099-21H222:10:210
1176799180,17cyclictest3989-21H222:10:210
1176799180,17cyclictest3981-21H222:10:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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