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2026-08-16 - 17:36
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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 Sun Aug 16, 2026 12:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2013199234,13cyclictest0-21swapper/212:34:122
2013199230,6cyclictest0-21swapper/210:45:172
20131992214,5cyclictest0-21swapper/207:18:152
2012799214,2cyclictest17576-21nfsd408:00:181
20126992017,2cyclictest21989-21sort10:00:220
2012699200,19cyclictest0-21swapper/010:25:130
2013199192,16cyclictest498-21needreboot12:15:192
20131991917,1cyclictest0-21swapper/211:54:482
20131991917,1cyclictest0-21swapper/210:52:162
20131991913,3cyclictest0-21swapper/208:09:252
2013199190,1cyclictest0-21swapper/208:34:322
20127991914,3cyclictest9618-21proc_pri07:45:211
2012799190,16cyclictest3981-21H222:10:211
2012799190,16cyclictest3981-21H222:10:211
2012799190,16cyclictest3981-21H222:10:211
2012699192,2cyclictest28664-21chrt09:15:430
2012699192,2cyclictest20112-21chrt11:53:370
2012699192,16cyclictest13713-21grep08:50:190
2012699192,16cyclictest0-21swapper/009:28:120
2012699192,16cyclictest0-21swapper/008:17:320
2012699192,15cyclictest28553-21missed_timers08:20:210
20126991916,2cyclictest12181-21expr09:45:150
20126991915,3cyclictest0-21swapper/007:12:040
20126991914,4cyclictest0-21swapper/012:15:190
2012699190,17cyclictest0-21swapper/011:49:540
2013199182,15cyclictest0-21swapper/211:25:142
2013199182,15cyclictest0-21swapper/211:02:332
2013199182,15cyclictest0-21swapper/209:29:112
20131991815,2cyclictest19289-21grep09:00:192
20131991813,2cyclictest3989-21H222:10:212
2013199181,2cyclictest26204-21chrt09:14:162
2013199181,1cyclictest0-21swapper/208:45:222
2013199181,16cyclictest5357-21cut09:35:002
2013199181,16cyclictest2256-21wc10:25:142
2013199181,16cyclictest15630-21chrt07:56:162
2013199180,3cyclictest14496-21snapd10:35:442
2013199180,2cyclictest3976-21H222:10:212
2013199180,2cyclictest0-21swapper/207:36:272
2013199180,17cyclictest28645-21turbostat07:25:012
2013199180,16cyclictest4035-21H222:10:212
2013199180,16cyclictest23255-21python309:10:022
2012799182,15cyclictest0-21swapper/109:35:261
20127991816,1cyclictest0-21swapper/112:01:431
20127991816,1cyclictest0-21swapper/108:35:141
20127991814,3cyclictest3979-21H222:10:211
20127991814,3cyclictest0-21swapper/110:02:491
2012799180,3cyclictest399-20systemd-journal07:55:011
2012799180,17cyclictest1300-21lxd11:30:431
2012699182,2cyclictest12086-21nfsd407:50:180
2012699182,1cyclictest0-21swapper/009:20:210
20126991818,0cyclictest0-21swapper/008:12:550
20126991816,1cyclictest1174-21cat10:20:220
20126991814,3cyclictest5568-21grep11:25:200
20126991814,3cyclictest5397-21cut12:25:000
20126991814,3cyclictest4035-21H222:10:210
2012699181,16cyclictest5745-21cat08:35:210
2012699180,17cyclictest863-21avahi-daemon07:15:220
2012699180,16cyclictest3987-21H222:10:210
20131991715,1cyclictest197942chrt09:59:182
20131991715,1cyclictest0-21swapper/210:20:172
20131991715,1cyclictest0-21swapper/207:25:162
20131991714,2cyclictest4099-21H222:10:212
20131991714,2cyclictest3979-21H222:10:212
20131991714,2cyclictest31187-21grep08:25:162
20131991714,2cyclictest29501-21expr10:15:162
20131991714,2cyclictest27864-21apache_volume11:10:112
20131991714,2cyclictest27286-21latency10:10:172
20131991714,2cyclictest27115-21latency12:05:172
20131991714,2cyclictest25634-21fschecks_time11:05:162
20131991714,2cyclictest24201-21idleruntime10:05:172
20131991714,2cyclictest14095-21munin-run09:50:002
20131991714,1cyclictest0-21swapper/212:28:292
20131991714,1cyclictest0-21swapper/212:28:282
20131991712,4cyclictest399-20systemd-journal08:45:002
2013199170,2cyclictest7380-21timerandwakeup09:35:212
2013199170,2cyclictest29282-21munin-plugin-st09:20:012
2013199170,2cyclictest22750-21awk07:15:012
2013199170,2cyclictest2194-21acpi12:20:112
2013199170,2cyclictest1523-21lxd08:00:432
2013199170,2cyclictest12686-21awk10:40:192
2013199170,2cyclictest1085-21gdbus07:40:202
2013199170,1cyclictest3987-21H222:10:212
2013199170,1cyclictest30116-21cat08:25:012
2013199170,1cyclictest0-21swapper/211:32:392
2013199170,17cyclictest0-21swapper/211:40:182
2013199170,16cyclictest9670-21pzem_current07:45:212
2013199170,16cyclictest550-21grep07:30:192
2013199170,16cyclictest3707-21master08:10:142
2013199170,16cyclictest3414-21master08:57:412
2013199170,16cyclictest25958-21nfsd408:15:202
2013199170,16cyclictest22164-21cat10:00:232
2013199170,16cyclictest15110-21grep09:50:162
2013199170,16cyclictest13132-21grep08:50:162
2013199170,16cyclictest0-21swapper/210:55:152
2013199170,16cyclictest0-21swapper/209:40:172
20127991715,1cyclictest30460-21sh10:15:211
20127991714,2cyclictest8959-21apache_accesses09:40:121
20127991714,2cyclictest7513-21taskset10:34:181
20127991714,2cyclictest3989-21H222:10:211
20127991714,2cyclictest3985-21H222:10:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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