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2025-12-11 - 16:09
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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 376 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
22723991715,1cyclictest0-21swapper/108:20:161
22723991715,1cyclictest0-21swapper/107:25:141
22723991714,2cyclictest4987-21sendmail_mailst12:15:201
22723991714,2cyclictest4593-21H212:26:331
22723991714,2cyclictest4538-21H212:26:331
22723991714,2cyclictest4528-21H212:26:331
22723991714,2cyclictest30997-21awk08:19:591
22723991714,2cyclictest19590-21idleruntime11:45:161
22723991714,2cyclictest13909-21apache_accesses07:50:131
2272399171,1cyclictest21-21ksoftirqd/111:58:341
2272399171,15cyclictest4528-21H212:26:331
2272399170,2cyclictest4593-21H212:26:331
2272399170,2cyclictest4536-21H212:26:331
2272399170,2cyclictest4532-21H212:26:331
2272399170,2cyclictest4528-21H212:26:331
2272399170,2cyclictest4523-21H212:26:331
2272399170,2cyclictest32472-21sed09:15:221
2272399170,2cyclictest26414-21expr08:10:141
2272399170,2cyclictest21636-21munin-run09:00:011
2272399170,2cyclictest21636-21munin-run09:00:001
2272399170,2cyclictest20724-21expr08:00:141
2272399170,2cyclictest14764-21wc11:35:251
2272399170,2cyclictest13031-21cat08:45:021
2272399170,1cyclictest4526-21H212:26:331
2272399170,16cyclictest6405-21grep07:35:191
2272399170,16cyclictest4581-21H212:26:331
2272399170,16cyclictest454-21plymouthd09:25:141
2272399170,16cyclictest4536-21H212:26:331
2272399170,16cyclictest4536-21H212:26:331
2272399170,16cyclictest4532-21H212:26:331
2272399170,16cyclictest4523-21H212:26:331
2272399170,16cyclictest25184-21awk10:00:181
2272399170,16cyclictest24241-21nfsd407:10:181
2272399170,16cyclictest24241-21nfsd407:10:181
2272399170,16cyclictest21856-21/usr/sbin/munin09:00:201
2272399170,16cyclictest17451-21proc_pri08:50:201
2272399170,16cyclictest16984-21expr07:55:161
2272399170,16cyclictest15671-21nfsd412:35:201
2272399170,16cyclictest11128-21pzem_energy09:35:211
2272299172,9cyclictest7621-21perf07:40:010
22722991716,0cyclictest0-21swapper/007:28:280
22722991715,1cyclictest0-21swapper/010:50:180
22722991714,2cyclictest4593-21H212:26:330
22722991714,2cyclictest4538-21H212:26:330
22722991714,2cyclictest4534-21H212:26:330
22722991714,2cyclictest4532-21H212:26:330
22722991714,2cyclictest4532-21H212:26:330
22722991714,2cyclictest4532-21H212:26:330
22722991714,2cyclictest20557-21cpuspeed_turbos08:00:140
22722991714,2cyclictest10387-21proc_pri12:25:210
22722991714,2cyclictest10234-21timerandwakeup07:40:220
22722991714,1cyclictest0-21swapper/011:43:560
2272299171,14cyclictest0-21swapper/008:55:220
2272299171,14cyclictest0-21swapper/008:55:210
2272299170,2cyclictest4534-21H212:26:330
2272299170,2cyclictest4530-21H212:26:330
2272299170,2cyclictest4528-21H212:26:330
2272299170,2cyclictest4523-21H212:26:330
2272299170,2cyclictest29844-21taskset10:10:020
2272299170,2cyclictest28175-21cron11:05:010
2272299170,2cyclictest25005-21anvil11:55:150
2272299170,1cyclictest4523-21H212:26:330
2272299170,16cyclictest5403-21idleruntime11:20:160
2272299170,16cyclictest4830-21ntp_states12:15:180
2272299170,16cyclictest4538-21H212:26:330
2272299170,16cyclictest4532-21H212:26:330
2272299170,16cyclictest4530-21H212:26:330
2272299170,16cyclictest4530-21H212:26:330
2272299170,16cyclictest4530-21H212:26:330
2272299170,16cyclictest4528-21H212:26:330
2272299170,16cyclictest4528-21H212:26:330
2272299170,16cyclictest4526-21H212:26:330
2272299170,16cyclictest27970-21seq07:18:550
2272299170,16cyclictest16195-21cron07:55:010
2272299170,16cyclictest1299-21lxd08:45:050
2272299170,16cyclictest12029-21cat10:35:150
2272299170,16cyclictest11221-21fschecks_time08:40:160
2272299170,16cyclictest0-21swapper/009:05:210
2272299170,15cyclictest4526-21H212:26:330
22727991614,1cyclictest16058-21cpuspeed_turbos08:50:132
22727991614,1cyclictest1059-21cups-browsed07:14:032
22727991614,1cyclictest1059-21cups-browsed07:14:032
22727991614,1cyclictest0-21swapper/209:45:162
22727991614,1cyclictest0-21swapper/207:40:142
2272799160,15cyclictest10813-21nfsd409:35:192
2272799160,15cyclictest0-21swapper/211:55:182
2272799160,15cyclictest0-21swapper/210:40:142
2272799160,15cyclictest0-21swapper/210:40:142
2272799160,15cyclictest0-21swapper/210:20:142
2272799160,15cyclictest0-21swapper/210:00:012
2272799160,15cyclictest0-21swapper/207:35:212
2272799160,0cyclictest0-21swapper/208:17:182
22723991614,1cyclictest0-21swapper/112:25:231
2272399160,15cyclictest7881-21/usr/sbin/munin08:35:141
2272399160,15cyclictest0-21swapper/107:40:011
22722991614,1cyclictest23457-21cstates07:10:140
22722991614,1cyclictest23457-21cstates07:10:130
22722991614,1cyclictest0-21swapper/008:25:240
22722991614,1cyclictest0-21swapper/008:11:340
22722991613,2cyclictest4532-21H212:26:330
2272299160,2cyclictest23098-21pzem_energy11:50:210
2272299160,1cyclictest29943-21cpuspeed_turbos12:05:150
2272299160,1cyclictest0-21swapper/009:50:150
2272299160,1cyclictest0-21swapper/008:20:010
2272299160,15cyclictest0-21swapper/011:45:160
2272299160,15cyclictest0-21swapper/011:15:160
2272299160,15cyclictest0-21swapper/009:45:190
2272299160,15cyclictest0-21swapper/009:40:140
2272299160,15cyclictest0-21swapper/007:30:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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