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2026-08-16 - 19:08
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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 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
20127991714,2cyclictest32330-21df12:15:151
20127991714,2cyclictest29753-21cron08:25:011
20127991714,2cyclictest26492-21pzem_current11:05:201
20127991714,2cyclictest21987-21apache_processe08:10:131
20127991714,2cyclictest17361-21df_inode10:50:141
20127991714,2cyclictest10257-21perl11:35:151
20127991714,2cyclictest10177-21cat08:45:141
2012799170,2cyclictest797-21sed09:25:171
2012799170,2cyclictest399-20systemd-journal10:29:181
2012799170,2cyclictest3983-21H222:10:211
2012799170,2cyclictest32279-21expr10:20:151
2012799170,2cyclictest28030-21grep11:10:121
2012799170,2cyclictest23462-21nfsd411:00:201
2012799170,2cyclictest2164-21cut08:30:181
2012799170,2cyclictest12932-21cat11:40:121
2012799170,1cyclictest0-21swapper/109:10:181
2012799170,1cyclictest0-21swapper/108:55:151
2012799170,16cyclictest3985-21H222:10:211
2012799170,16cyclictest3981-21H222:10:211
2012799170,16cyclictest26754-21fschecks_count12:05:141
2012799170,16cyclictest21362-21hddtemp_smartct11:55:171
2012799170,16cyclictest20733-21awk10:55:181
2012799170,16cyclictest18992-21missed_timers11:50:181
2012799170,16cyclictest1522-21lxd09:50:431
2012799170,16cyclictest1336-21cat11:20:141
2012799170,16cyclictest11199-21dpkg10:40:011
2012799170,16cyclictest0-21swapper/108:06:551
20126991715,1cyclictest212342chrt08:07:590
20126991715,1cyclictest19312-21ntp_kernel_pll_09:00:190
20126991715,1cyclictest0-21swapper/012:35:170
20126991715,1cyclictest0-21swapper/010:15:180
20126991714,2cyclictest993-21dbus-daemon11:40:000
20126991714,2cyclictest9669-21apache_processe08:45:120
20126991714,2cyclictest8363-21acpi12:30:110
20126991714,2cyclictest7777-21runrttasks09:37:570
20126991714,2cyclictest3983-21H222:10:210
20126991714,2cyclictest29532-21expr07:25:150
20126991714,2cyclictest24549-21df09:10:140
20126991714,2cyclictest23343-21gpg-connect-age10:05:010
20126991714,2cyclictest20935-21cat09:05:130
20126991714,2cyclictest16836-21python309:55:000
20126991714,2cyclictest13859-21ntp_states11:40:180
20126991714,1cyclictest5501-21cpuspeed_turbos07:40:140
20126991713,3cyclictest9497-21latency_hist08:45:010
2012699171,15cyclictest30945-21cat11:15:150
2012699171,15cyclictest28188-21timerwakeupswit10:10:230
2012699170,2cyclictest891-21apache_processe08:30:120
2012699170,2cyclictest8739-21cmp09:40:010
2012699170,2cyclictest7831-21latency_hist10:35:010
2012699170,2cyclictest3983-21H222:10:210
2012699170,2cyclictest23648-21ntp_states11:00:200
2012699170,2cyclictest17566-21apache_volume09:55:120
2012699170,16cyclictest9099-21latency07:45:180
2012699170,16cyclictest7799-21cat11:30:170
2012699170,16cyclictest533-21cut08:30:000
2012699170,16cyclictest5136-21chrt09:34:010
2012699170,16cyclictest26884-21expr07:20:140
2012699170,16cyclictest21275-21sed10:55:210
2012699170,16cyclictest20753-21cpuspeed_turbos11:55:140
2012699170,16cyclictest17484-21hddtemp_smartct10:50:150
2012699170,16cyclictest1640-21df_inode11:20:150
2012699170,16cyclictest15088-21ps07:55:200
2012699170,16cyclictest11888-21df10:40:150
20131991614,1cyclictest0-21swapper/211:15:172
20131991614,1cyclictest0-21swapper/209:20:142
20131991613,2cyclictest20645-21find11:55:122
2013199160,2cyclictest1375-21munin-node07:50:122
2013199160,15cyclictest3970-21/usr/sbin/munin08:35:142
2013199160,15cyclictest0-21swapper/210:30:122
20127991615,1cyclictest21-21ksoftirqd/107:39:001
20127991614,1cyclictest21385-21hddtemp_smartct09:05:151
20127991614,1cyclictest13942-21processes08:50:211
20127991614,1cyclictest0-21swapper/111:25:141
20127991614,1cyclictest0-21swapper/110:35:151
20127991614,1cyclictest0-21swapper/110:05:021
20127991614,1cyclictest0-21swapper/109:55:211
20127991614,1cyclictest0-21swapper/109:20:151
20127991614,1cyclictest0-21swapper/108:40:141
20127991614,1cyclictest0-21swapper/107:40:141
20127991614,1cyclictest0-21swapper/107:10:171
2012799160,1cyclictest24251-21missed_timers07:15:201
2012799160,1cyclictest12595-21irqstats09:45:181
2012799160,1cyclictest0-21swapper/107:20:141
2012799160,15cyclictest3450-21gsd-color11:15:191
2012799160,15cyclictest30509-21apache_processe08:25:121
2012799160,15cyclictest29061-21dpkg07:25:141
2012799160,15cyclictest26799-21cat10:10:141
2012799160,15cyclictest25171-21cstates08:15:161
2012799160,15cyclictest18006-21cpuspeed_turbos09:00:141
2012799160,15cyclictest0-21swapper/107:55:201
20126991614,1cyclictest17657-21nfsd408:00:190
20126991614,1cyclictest0-21swapper/011:10:140
20126991613,2cyclictest8909-21irqstats10:35:170
2012699160,15cyclictest5648-21apache_accesses12:25:100
2012699160,15cyclictest5648-21apache_accesses12:25:100
2012699160,15cyclictest3989-21H222:10:210
2012699160,15cyclictest24986-21apache_volume11:05:140
2012699160,15cyclictest0-21swapper/010:45:170
2012699160,15cyclictest0-21swapper/008:55:160
2012799150,1cyclictest0-21swapper/107:30:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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