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2026-08-30 - 17:24
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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 30, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2767199236,14cyclictest0-21swapper/008:18:520
2767199236,14cyclictest0-21swapper/008:18:510
2767199202,17cyclictest28097-21fschecks_time10:00:150
2767799193,15cyclictest0-21swapper/211:08:512
27677991916,2cyclictest7952-21timerandwakeup11:15:222
2767299193,15cyclictest25471-21sh10:55:001
27672991917,1cyclictest0-21swapper/108:46:201
27672991915,1cyclictest0-21swapper/108:55:171
2767299191,3cyclictest0-21swapper/111:15:161
2767299190,3cyclictest6439-21ps12:10:191
2767299190,18cyclictest5834-21cat11:15:001
2767199196,12cyclictest0-21swapper/008:28:520
2767199190,3cyclictest20637-21grep08:50:140
2767799183,1cyclictest0-21swapper/212:07:312
2767799183,1cyclictest0-21swapper/212:07:312
2767799182,15cyclictest3976-21H222:10:212
2767799182,15cyclictest10879-21latency_hist08:35:002
2767799182,15cyclictest0-21swapper/207:15:132
27677991816,1cyclictest184742chrt12:33:142
27677991816,1cyclictest184742chrt12:33:142
27677991815,2cyclictest25907-21nfsd409:55:192
27677991815,2cyclictest12840-21netstat11:25:182
27677991815,2cyclictest10121-21nfsd411:20:172
27677991814,3cyclictest26446-21cpuspeed_turbos08:05:142
2767799181,2cyclictest2069-21systemd-udevd07:54:532
2767799181,16cyclictest399-20systemd-journal08:55:012
2767799180,17cyclictest23630-21grep08:00:132
2767799180,16cyclictest5601-21lxd12:20:432
2767299182,15cyclictest28369-21chrt09:02:021
27672991816,1cyclictest0-21swapper/111:23:411
27672991815,2cyclictest19595-21vmstat10:40:221
27672991815,2cyclictest12544-21/usr/sbin/munin07:40:141
27672991814,3cyclictest17665-21nfsd412:30:201
27672991814,3cyclictest17665-21nfsd412:30:191
27672991813,4cyclictest0-21swapper/109:17:421
2767299181,16cyclictest0-21swapper/110:30:181
27672991810,4cyclictest0-21swapper/107:59:261
2767299180,4cyclictest0-21swapper/108:44:111
2767299180,17cyclictest3989-21H222:10:211
2767299180,16cyclictest3989-21H222:10:211
2767299180,16cyclictest31358-21python311:05:021
2767199182,9cyclictest2362-21python311:10:010
2767199182,15cyclictest0-21swapper/009:05:000
27671991815,2cyclictest22233-21expr09:50:130
27671991815,2cyclictest1515-21lxd10:58:430
27671991813,3cyclictest399-20systemd-journal07:55:010
27671991812,3cyclictest0-21swapper/010:11:160
27677991715,1cyclictest21880-21processes10:45:192
27677991715,1cyclictest0-21swapper/210:23:352
27677991715,1cyclictest0-21swapper/210:18:342
27677991715,1cyclictest0-21swapper/209:16:002
27677991714,3cyclictest0-21swapper/209:50:362
27677991714,2cyclictest6615-21/usr/sbin/munin08:25:172
27677991714,2cyclictest3987-21H222:10:212
27677991714,2cyclictest1526-21lxd10:50:432
27677991714,2cyclictest1522-21lxd09:08:432
27677991714,2cyclictest13160-21cron09:35:022
27677991714,2cyclictest12229-21cpuspeed_turbos10:30:132
27677991714,1cyclictest0-21swapper/208:25:022
27677991712,2cyclictest12504-21nfsd408:35:182
2767799171,15cyclictest3992-21H222:10:212
2767799171,15cyclictest0-21swapper/210:00:372
2767799170,2cyclictest5433-21apt-get09:20:152
2767799170,2cyclictest3976-21H222:10:212
2767799170,2cyclictest21429-21fschecks_time07:55:152
2767799170,2cyclictest16823-21pzem_current07:45:212
2767799170,2cyclictest16756-21chrt08:44:252
2767799170,2cyclictest13401-21dpkg12:25:012
2767799170,16cyclictest5601-21lxd11:40:442
2767799170,16cyclictest3976-21H222:10:212
2767799170,16cyclictest31381-21cat11:05:012
2767799170,16cyclictest27142-21grep11:50:182
2767799170,16cyclictest24474-21wc11:45:212
2767799170,16cyclictest23777-21fschecks_count08:55:152
2767799170,16cyclictest17750-21fschecks_time11:35:132
2767799170,16cyclictest14548-21cpuspeed_turbos11:30:142
2767799170,16cyclictest14504-21snapd10:05:272
27672991714,2cyclictest9716-21cat10:25:141
27672991714,2cyclictest3828-21cut08:20:171
27672991714,2cyclictest31901-21find09:10:121
27672991714,2cyclictest23166-21expr11:45:141
27672991714,2cyclictest21216-21nfsd411:40:181
27672991714,2cyclictest11641-21apt-get11:25:121
27672991714,2cyclictest11010-21latency_hist08:35:001
27672991714,2cyclictest1085-21gdbus09:20:241
27672991714,2cyclictest0-21swapper/109:05:181
27672991714,1cyclictest0-21swapper/112:35:131
2767299171,1cyclictest15066-21proc_pri09:35:191
2767299171,15cyclictest0-21swapper/108:10:001
2767299170,2cyclictest9417-21cat12:15:221
2767299170,2cyclictest5759-21egrep08:25:151
2767299170,2cyclictest4375-21cpuspeed_turbos07:25:141
2767299170,2cyclictest31348-21chrt08:13:231
2767299170,2cyclictest31279-21latency_hist12:00:001
2767299170,2cyclictest21781-21ntpq08:50:181
2767299170,2cyclictest17512-21expr11:35:121
2767299170,2cyclictest1521-21lxd11:50:431
2767299170,16cyclictest9408-21lxd09:32:431
2767299170,16cyclictest3976-21H222:10:211
2767299170,16cyclictest3414-21master07:17:561
2767299170,16cyclictest3187-21nfsd412:05:181
2767299170,16cyclictest3187-21nfsd412:05:181
2767299170,16cyclictest3170-21munin-run10:15:011
2767299170,16cyclictest28121-21fschecks_time10:00:151
2767299170,16cyclictest28004-21lxd09:58:441
2767299170,16cyclictest22219-21cat09:50:131
2767299170,16cyclictest21592-21nfsd410:45:171
2767299170,16cyclictest19434-21nvmesmart_nvme007:50:171
2767299170,16cyclictest19383-21expr09:45:141
2767299170,16cyclictest15278-21cat10:35:141
2767299170,16cyclictest12415-21cut08:35:181
27671991716,1cyclictest9-21ksoftirqd/010:40:180
27671991715,1cyclictest184622chrt12:33:050
27671991715,1cyclictest184622chrt12:33:040
27671991715,1cyclictest0-21swapper/007:10:160
27671991714,2cyclictest843-21systemd-network09:13:580
27671991714,2cyclictest3981-21H222:10:210
27671991714,2cyclictest23065-21expr11:45:130
27671991714,2cyclictest2007-21systemd-journal09:59:470
27671991714,2cyclictest18842-21sh09:45:010
27671991714,2cyclictest16851-21pzem_voltage07:45:220
27671991714,2cyclictest15283-21sort12:25:210
27671991714,2cyclictest1522-21lxd10:36:440
27671991714,2cyclictest14904-21cat11:30:140
27671991714,2cyclictest14495-21snapd11:15:280
27671991714,2cyclictest1035-21thermald11:25:210
2767199171,15cyclictest0-21swapper/008:35:130
2767199171,15cyclictest0-21swapper/008:09:270
2767199170,2cyclictest4131-21expr10:15:130
2767199170,2cyclictest31321-21munin-run11:05:010
2767199170,2cyclictest29911-21grep11:55:170
2767199170,2cyclictest24313-21nfsd410:50:170
2767199170,2cyclictest19825-21cut11:40:010
2767199170,16cyclictest6026-21memory12:10:160
2767199170,16cyclictest5548-21cpuspeed_turbos09:20:160
2767199170,16cyclictest20249-21awk12:35:170
2767199170,16cyclictest19816-21expr09:45:150
2767199170,16cyclictest19502-21cat08:45:200
2767199170,16cyclictest1901-21expr12:05:130
2767199170,16cyclictest1901-21expr12:05:130
2767199170,16cyclictest15118-21fschecks_count08:40:150
2767199170,16cyclictest12209-21sed12:20:220
2767199170,16cyclictest11285-21expr09:30:140
2767199170,15cyclictest0-21swapper/012:04:480
2767799162,14cyclictest0-21swapper/209:00:182
27677991614,1cyclictest101862chrt09:26:362
27677991614,1cyclictest0-21swapper/210:35:152
27677991614,1cyclictest0-21swapper/210:25:052
27677991614,1cyclictest0-21swapper/209:10:172
27677991614,1cyclictest0-21swapper/207:25:162
2767799160,2cyclictest1085-21gdbus07:20:202
2767799160,15cyclictest7173-21cpuspeed_turbos07:30:152
2767799160,15cyclictest4036-21H222:10:212
2767799160,15cyclictest32217-21if_lxdbr012:00:162
2767799160,15cyclictest318852chrt08:15:082
2767799160,15cyclictest318852chrt08:15:082
2767799160,15cyclictest30032-21uname08:10:172
2767799160,15cyclictest2945-21apt-key11:10:002
2767799160,15cyclictest29401-21if_enp1s011:55:152
2767799160,15cyclictest28889-21irqstats07:10:182
2767799160,15cyclictest16822-21apt-get08:45:012
2767799160,15cyclictest0-21swapper/212:35:182
2767799160,15cyclictest0-21swapper/210:55:022
2767799160,15cyclictest0-21swapper/210:40:162
2767799160,15cyclictest0-21swapper/209:45:142
2767799160,15cyclictest0-21swapper/209:30:162
27672991614,1cyclictest65302sleep110:20:021
27672991614,1cyclictest30392-21pluginstate07:15:001
27672991614,1cyclictest0-21swapper/112:25:001
27672991614,1cyclictest0-21swapper/110:55:211
27672991614,1cyclictest0-21swapper/110:15:131
27672991614,1cyclictest0-21swapper/107:45:221
27672991613,2cyclictest7318-21expr07:30:141
27672991613,2cyclictest14346-21find11:30:121
27672991613,2cyclictest10774-21pluginstate09:30:001
2767299160,2cyclictest9977-21cat07:35:151
2767299160,2cyclictest23911-21expr08:00:131
2767299160,15cyclictest31783-21mailstats10:05:201
2767299160,15cyclictest1804-21fschecks_time07:20:141
2767299160,15cyclictest0-21swapper/109:40:151
2767299160,15cyclictest0-21swapper/108:15:161
2767299160,15cyclictest0-21swapper/108:15:161
27671991614,1cyclictest323052chrt10:07:590
27671991614,1cyclictest0-21swapper/012:16:240
27671991614,1cyclictest0-21swapper/010:30:130
27671991614,1cyclictest0-21swapper/009:35:160
27671991614,1cyclictest0-21swapper/009:20:010
27671991614,1cyclictest0-21swapper/009:05:150
27671991614,1cyclictest0-21swapper/008:30:200
27671991614,1cyclictest0-21swapper/008:10:140
27671991614,1cyclictest0-21swapper/007:50:120
27671991614,1cyclictest0-21swapper/007:35:150
27671991614,1cyclictest0-21swapper/007:30:140
27671991614,1cyclictest0-21swapper/007:25:220
27671991613,2cyclictest32035-21awk07:15:180
27671991613,2cyclictest22463-21latency_hist11:45:000
2767199160,1cyclictest0-21swapper/011:25:000
2767199160,15cyclictest8294-21timerandwakeup10:20:220
2767199160,15cyclictest3671-21cat11:10:150
2767199160,15cyclictest24303-21/usr/sbin/munin08:00:160
2767199160,15cyclictest10687-21ntpq10:25:190
2767199160,15cyclictest0-21swapper/010:45:140
2767199160,15cyclictest0-21swapper/009:25:230
2767199160,15cyclictest0-21swapper/007:20:170
27671991514,1cyclictest0-21swapper/011:50:140
27671991512,2cyclictest455-21plymouthd07:40:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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