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2025-12-11 - 16:41
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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 Thu Dec 11, 2025 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2272399350,34cyclictest0-21swapper/112:30:131
2272799214,2cyclictest21128-21bounce11:49:542
22722992121,0cyclictest0-21swapper/008:30:160
22727992018,2cyclictest0-21swapper/209:22:202
2272399204,15cyclictest4534-21H212:26:331
2272399200,19cyclictest0-21swapper/112:11:581
2272399200,17cyclictest0-21swapper/111:15:361
2272399200,15cyclictest0-21swapper/112:00:171
2272399200,15cyclictest0-21swapper/112:00:161
2272799192,11cyclictest19637-21gpgv08:00:012
22727991917,1cyclictest0-21swapper/207:30:012
22727991916,2cyclictest29494-21expr11:05:182
22727991914,3cyclictest4523-21H212:26:332
2272799190,3cyclictest2628-21cron10:20:012
2272799190,2cyclictest4530-21H212:26:332
2272799190,2cyclictest4530-21H212:26:332
2272799190,16cyclictest4581-21H212:26:332
2272799190,16cyclictest4534-21H212:26:332
2272799190,16cyclictest4532-21H212:26:332
2272799190,16cyclictest4532-21H212:26:332
2272399192,2cyclictest4922-21egrep08:30:141
22723991917,1cyclictest0-21swapper/107:45:431
22723991910,8cyclictest0-21swapper/110:12:321
2272399190,2cyclictest4536-21H212:26:331
2272399190,2cyclictest31295-21ls07:25:011
2272299193,1cyclictest0-21swapper/008:52:380
22722991916,2cyclictest11914-21cat12:30:130
2272299191,2cyclictest9095-21ps08:35:210
2272299190,18cyclictest823-21systemd-network09:15:290
2272299190,16cyclictest4581-21H212:26:330
2272299190,16cyclictest4581-21H212:26:330
2272299190,16cyclictest4534-21H212:26:330
2272799182,15cyclictest9400-21taskset11:26:462
2272799182,15cyclictest4523-21H212:26:332
2272799182,15cyclictest11753-21nfsd408:40:202
2272799182,15cyclictest0-21swapper/208:29:342
22727991816,1cyclictest28-21ksoftirqd/212:00:522
22727991816,1cyclictest28-21ksoftirqd/212:00:522
22727991816,1cyclictest28-21ksoftirqd/210:37:042
22727991816,1cyclictest0-21swapper/208:01:142
22727991814,3cyclictest4538-21H212:26:332
22727991814,3cyclictest4528-21H212:26:332
22727991814,3cyclictest0-21swapper/208:35:222
2272799180,3cyclictest1299-21lxd10:11:052
2272799180,2cyclictest31785-21missed_timers09:15:182
2272799180,17cyclictest4593-21H212:26:332
2272799180,17cyclictest4536-21H212:26:332
2272799180,17cyclictest29570-21cat07:20:182
2272799180,17cyclictest0-21swapper/211:30:512
2272799180,16cyclictest4581-21H212:26:332
2272799180,16cyclictest4532-21H212:26:332
2272799180,15cyclictest4581-21H212:26:332
22723991816,1cyclictest21-21ksoftirqd/112:22:091
22723991816,1cyclictest0-21swapper/112:09:021
22723991816,1cyclictest0-21swapper/110:45:161
22723991816,1cyclictest0-21swapper/107:15:481
22723991815,2cyclictest4534-21H212:26:331
22723991814,3cyclictest4536-21H212:26:331
2272399180,2cyclictest4593-21H212:26:331
2272399180,2cyclictest4528-21H212:26:331
2272399180,2cyclictest4526-21H212:26:331
2272399180,17cyclictest4534-21H212:26:331
2272399180,17cyclictest4528-21H212:26:331
2272399180,17cyclictest30005-21snapd11:24:131
2272399180,16cyclictest4526-21H212:26:331
2272399180,15cyclictest4534-21H212:26:331
2272299182,15cyclictest4528-21H212:26:330
22722991816,1cyclictest9-21ksoftirqd/011:10:010
22722991814,3cyclictest4581-21H212:26:330
22722991814,2cyclictest25091-21idleruntime-cro11:00:000
2272299180,2cyclictest4536-21H212:26:330
2272299180,2cyclictest4536-21H212:26:330
2272299180,17cyclictest4530-21H212:26:330
2272299180,17cyclictest4528-21H212:26:330
22727991715,1cyclictest0-21swapper/209:50:172
22727991714,2cyclictest5131-21ls11:20:132
22727991714,2cyclictest4708-21awk12:15:162
22727991714,2cyclictest3717-21ntpq07:30:192
22727991714,2cyclictest27453-21cat07:15:232
22727991714,2cyclictest18933-21switchtime10:45:222
22727991714,2cyclictest0-21swapper/208:55:202
22727991714,2cyclictest0-21swapper/208:55:202
2272799170,2cyclictest5362-21nfsd409:25:192
2272799170,2cyclictest4534-21H212:26:332
2272799170,2cyclictest21550-21/usr/sbin/munin11:50:232
2272799170,16cyclictest8337-21proc_pri09:30:212
2272799170,16cyclictest476-21processes08:20:202
2272799170,16cyclictest4593-21H212:26:332
2272799170,16cyclictest4534-21H212:26:332
2272799170,16cyclictest4532-21H212:26:332
2272799170,16cyclictest4526-21H212:26:332
2272799170,16cyclictest4526-21H212:26:332
2272799170,16cyclictest4523-21H212:26:332
2272799170,16cyclictest29997-21snapd08:12:192
2272799170,16cyclictest16678-21cat11:40:132
2272799170,16cyclictest13963-21/usr/sbin/munin09:40:192
2272799170,16cyclictest13908-21apache_accesses07:50:122
22723991715,1cyclictest237712chrt11:53:441
22723991715,1cyclictest0-21swapper/110:40:201
22723991715,1cyclictest0-21swapper/110:40:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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