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2026-08-26 - 22:00
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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 Wed Aug 26, 2026 12:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26202992515,6cyclictest0-21swapper/209:50:192
26202992219,2cyclictest29041-21sessionclean09:09:002
26202992218,3cyclictest399-20systemd-journal11:20:012
26202992218,3cyclictest22755-21wc10:50:212
26193992214,3cyclictest0-21swapper/011:30:160
2619399221,17cyclictest0-21swapper/010:35:000
2620299214,16cyclictest17623-21fschecks_time07:50:152
2620299214,16cyclictest0-21swapper/210:13:222
2620299213,3cyclictest25107-21munin-plugin-st10:00:012
26202992118,2cyclictest2282-21sed07:25:012
26202992118,2cyclictest1156-21http12:10:012
2619799214,16cyclictest0-21swapper/110:25:551
2619399215,15cyclictest25718-21ls11:55:120
2620299203,16cyclictest3396-21cat09:20:142
2620299203,16cyclictest3396-21cat09:20:142
2620299203,16cyclictest26687-21expr07:10:142
2620299203,16cyclictest16620-21expr12:35:132
26202992017,2cyclictest9348-21cut07:35:172
26202992017,2cyclictest9348-21cut07:35:172
26202992017,2cyclictest848-21sed11:10:172
26202992017,2cyclictest5875-21nfsd410:20:172
26202992017,2cyclictest31198-21expr08:15:142
26202992017,2cyclictest21251-21cat11:45:222
26202992017,2cyclictest11148-21fschecks_time12:25:132
26202992016,3cyclictest21086-21cat08:55:012
26202992016,3cyclictest16289-21sed12:35:012
2620299200,18cyclictest9705-21dump-pmu-power10:30:012
2619799202,16cyclictest0-21swapper/112:25:131
2620299193,15cyclictest0-21swapper/210:45:012
2620299192,16cyclictest32738-21expr09:15:142
2620299192,16cyclictest22499-21cpu08:00:132
2620299192,16cyclictest15115-21find10:38:592
2620299192,16cyclictest1085-21gdbus09:10:202
26202991916,2cyclictest8617-21cpu09:30:122
26202991916,2cyclictest7007-21readlink07:30:212
26202991916,2cyclictest27211-21sed10:00:212
26202991916,2cyclictest23953-21nfsd411:50:192
26202991916,2cyclictest20347-21sed10:45:242
26202991916,2cyclictest15621-21switchtime11:35:212
26202991916,2cyclictest12060-21chrt08:35:402
26202991916,2cyclictest11982-21basename11:30:142
2620299191,17cyclictest6610-21if_enp1s011:20:162
2620299191,17cyclictest0-21swapper/208:30:192
26197991916,2cyclictest20220-21fschecks_count11:45:151
2619799190,1cyclictest0-21swapper/108:35:151
2619399193,15cyclictest9-21ksoftirqd/008:05:340
26193991914,3cyclictest3058-21rs:main0
26193991912,6cyclictest25629-21kworker/0:109:35:150
2620299182,2cyclictest271rcuc/208:45:012
2620299182,16cyclictest26187-21cyclictest12:11:412
2620299182,15cyclictest0-21swapper/211:04:552
26202991815,3cyclictest0-21swapper/212:03:182
26202991815,3cyclictest0-21swapper/211:09:002
26202991815,3cyclictest0-21swapper/211:09:002
26202991815,3cyclictest0-21swapper/210:55:142
26202991815,2cyclictest0-21swapper/212:15:112
26202991815,2cyclictest0-21swapper/211:55:212
26202991815,2cyclictest0-21swapper/209:45:012
26202991815,2cyclictest0-21swapper/208:57:062
26202991815,2cyclictest0-21swapper/208:57:062
26202991815,2cyclictest0-21swapper/208:45:192
26202991815,2cyclictest0-21swapper/208:20:062
26202991815,2cyclictest0-21swapper/208:05:142
26202991815,2cyclictest0-21swapper/207:15:142
26202991814,3cyclictest0-21swapper/210:30:172
2620299181,16cyclictest4390-21sed10:20:012
2620299181,16cyclictest11763-21expr07:40:142
2620299181,16cyclictest0-21swapper/207:55:182
2620299180,17cyclictest4670-21taskset07:25:232
2619799182,15cyclictest7512-21chrt07:32:031
2619799182,15cyclictest0-21swapper/110:01:521
2619799182,15cyclictest0-21swapper/109:39:491
26197991815,2cyclictest3991-21H222:10:211
26197991814,3cyclictest0-21swapper/111:27:541
26197991813,4cyclictest21295-21cpuspeed_turbos08:55:151
26197991813,4cyclictest21295-21cpuspeed_turbos08:55:151
2619799181,16cyclictest5601-21lxd08:14:431
26197991811,4cyclictest16988-21fschecks_time12:35:141
2619799180,3cyclictest6964-21perf08:30:001
2619799180,3cyclictest3989-21H222:10:211
2619799180,3cyclictest3280-21nfsd412:10:181
2619799180,1cyclictest0-21swapper/107:46:081
2619799180,17cyclictest843-21systemd-network09:05:021
2619799180,17cyclictest22472-21nfsd410:50:191
2619399182,1cyclictest31690-21kworker/0:212:10:080
2619399182,15cyclictest9-21ksoftirqd/011:50:000
2619399182,15cyclictest164482sleep009:44:090
2619399182,15cyclictest0-21swapper/007:50:400
2619399182,13cyclictest1050-21perf12:10:010
26193991816,1cyclictest16966-21nfsd410:40:170
26193991816,1cyclictest0-21swapper/007:24:370
26193991814,3cyclictest870-21systemd-logind08:28:520
26193991814,3cyclictest0-21swapper/010:49:080
2619399181,2cyclictest18188-21nfsd411:40:180
2619399181,16cyclictest2069-21systemd-udevd12:22:510
2619399180,17cyclictest426-21systemd-udevd08:34:520
2619399180,17cyclictest3985-21H222:10:210
2620299172,1cyclictest0-21swapper/209:25:142
2620299172,14cyclictest0-21swapper/209:43:192
26202991715,2cyclictest0-21swapper/209:02:552
26202991715,1cyclictest0-21swapper/211:25:202
26202991714,3cyclictest0-21swapper/210:09:532
26202991714,2cyclictest0-21swapper/211:40:142
26202991714,1cyclictest0-21swapper/208:25:132
2620299171,15cyclictest0-21swapper/209:35:132
2620299170,16cyclictest14921-21grep07:45:152
2620299170,16cyclictest0-21swapper/208:10:222
26197991715,1cyclictest0-21swapper/112:16:571
26197991714,2cyclictest9957-21sed07:35:211
26197991714,2cyclictest9957-21sed07:35:211
26197991714,2cyclictest32207-21memory10:10:161
26197991714,2cyclictest31523-21chrt11:07:391
26197991714,2cyclictest31523-21chrt11:07:391
26197991714,2cyclictest25037-21cron11:59:551
26197991714,2cyclictest20042-21chrt09:50:031
26197991714,2cyclictest17327-21ls11:40:141
26197991714,2cyclictest16768-21latency10:40:161
26197991714,2cyclictest14645-21cat09:40:131
26197991714,2cyclictest13439-21fschecks_count10:35:151
2619799171,15cyclictest36402chrt08:22:411
2619799170,3cyclictest5036-21perf07:30:001
2619799170,2cyclictest3707-21master11:00:211
2619799170,2cyclictest32229-21nvmesmart_nvme008:15:191
2619799170,2cyclictest26616-21tlsmgr08:33:191
2619799170,2cyclictest25558-21switchtime10:55:211
2619799170,2cyclictest19101-21sshd07:53:141
2619799170,2cyclictest14997-21ntp_states12:30:171
2619799170,2cyclictest1085-21gdbus08:45:191
2619799170,1cyclictest3976-21H222:10:211
2619799170,16cyclictest3991-21H222:10:211
2619799170,16cyclictest3760-21if_eno111:15:161
2619799170,16cyclictest27549-21sh08:09:011
2619799170,16cyclictest22616-21gpg-connect-age11:50:011
2619799170,16cyclictest21014-21latency_hist10:50:011
26193991714,2cyclictest9700-21grep11:25:160
26193991714,2cyclictest6862-21master10:23:450
26193991714,2cyclictest31186-21cat08:15:140
26193991714,2cyclictest29568-21expr07:15:140
26193991714,2cyclictest29389-21grep08:10:190
26193991714,2cyclictest24334-21expr09:00:130
26193991714,2cyclictest22452-21/usr/sbin/munin08:00:130
26193991714,2cyclictest1829-21systemd-journal11:35:010
26193991714,2cyclictest14304-21expr08:40:180
26193991714,2cyclictest11831-21expr07:40:140
26193991714,2cyclictest0-21swapper/011:15:170
26193991712,2cyclictest0-21swapper/011:53:320
2619399171,15cyclictest52912sleep009:23:190
2619399171,15cyclictest52912sleep009:23:190
2619399170,2cyclictest29198-21cron09:10:010
2619399170,2cyclictest2390-21apache_accesses07:25:110
2619399170,2cyclictest15192-21mailstats12:30:200
2619399170,16cyclictest455-21plymouthd07:55:130
2619399170,16cyclictest426-21systemd-udevd07:10:520
2619399170,16cyclictest32208-21memory10:10:160
2619399170,16cyclictest2872-21systemd-logind10:28:520
2619399170,16cyclictest27502-21if_enp1s011:00:170
2619399170,16cyclictest21195-21apache_processe08:55:130
2619399170,16cyclictest21195-21apache_processe08:55:130
2619399170,16cyclictest18470-21apache_volume08:50:130
2619399170,16cyclictest1515-21lxd11:10:430
2619399170,16cyclictest0-21swapper/010:15:160
2619399170,15cyclictest0-21swapper/010:35:330
26197991614,1cyclictest6568-21timerwakeupswit10:20:211
26197991614,1cyclictest195002chrt09:48:101
26197991614,1cyclictest0-21swapper/112:00:121
26197991614,1cyclictest0-21swapper/108:50:141
26197991614,1cyclictest0-21swapper/108:00:141
26197991614,1cyclictest0-21swapper/107:55:131
26197991614,1cyclictest0-21swapper/107:15:141
26197991613,2cyclictest8554-21/usr/sbin/munin09:30:111
26197991613,2cyclictest4257-21basename10:20:001
26197991613,2cyclictest3989-21H222:10:211
2619799160,2cyclictest31999-21cpu07:20:131
2619799160,1cyclictest15484-21processes11:35:201
2619799160,1cyclictest0-21swapper/109:55:181
2619799160,1cyclictest0-21swapper/107:10:161
2619799160,15cyclictest5865-21apt-get09:25:131
2619799160,15cyclictest52922chrt09:23:201
2619799160,15cyclictest52922chrt09:23:201
2619799160,15cyclictest32760-21expr11:10:131
2619799160,15cyclictest30941-21cat12:05:101
2619799160,15cyclictest10140-21cpu10:30:131
2619799160,15cyclictest0-21swapper/112:20:121
2619799160,15cyclictest0-21swapper/111:30:161
2619799160,15cyclictest0-21swapper/108:40:131
26193991614,1cyclictest0-21swapper/010:57:520
26193991614,1cyclictest0-21swapper/010:50:160
26193991614,1cyclictest0-21swapper/009:15:170
26193991613,2cyclictest10258-21cpuspeed_turbos08:35:150
2619399160,2cyclictest16334-21apache_processe12:35:110
2619399160,1cyclictest0-21swapper/007:45:140
2619399160,1cyclictest0-21swapper/007:35:130
2619399160,1cyclictest0-21swapper/007:35:130
2619399160,1cyclictest0-21swapper/007:32:020
2619399160,15cyclictest9414-21/usr/sbin/munin09:30:150
2619399160,15cyclictest7365-21pzem_current09:25:210
2619399160,15cyclictest5798-21apache_accesses11:20:110
2619399160,15cyclictest3976-21H222:10:210
2619399160,15cyclictest28522-21ls12:00:120
2619399160,15cyclictest24326-21/usr/sbin/munin09:55:210
2619399160,15cyclictest20525-21cat09:50:130
2619399160,15cyclictest18035-21fschecks_time09:45:150
2619399160,15cyclictest1460-21cpuspeed_turbos08:20:130
2619399160,15cyclictest11674-21nfsd412:25:160
2619399160,15cyclictest0-21swapper/011:05:140
2619399160,15cyclictest0-21swapper/011:05:140
2619399160,15cyclictest0-21swapper/010:00:140
2619399160,15cyclictest0-21swapper/009:10:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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