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2026-06-02 - 18:00
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Tue Jun 02, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22795992515,9cyclictest21-21ksoftirqd/108:00:591
22795992424,0cyclictest0-21swapper/112:30:171
22796992213,5cyclictest0-21swapper/208:54:522
2279599220,4cyclictest0-21swapper/110:31:101
22793992222,0cyclictest0-21swapper/008:00:580
2279699210,20cyclictest870-21systemd-logind09:18:512
2279699210,20cyclictest870-21systemd-logind08:48:512
2279399210,20cyclictest843-21systemd-network10:27:440
2279699200,17cyclictest0-21swapper/210:56:422
22795992017,2cyclictest2069-21systemd-udevd08:56:521
22793992017,2cyclictest31707-21if_lxdbr010:15:170
22793992017,2cyclictest31707-21if_lxdbr010:15:170
2279699193,15cyclictest9663-21cat09:35:172
22796991917,1cyclictest28-21ksoftirqd/209:00:212
22796991917,1cyclictest28-21ksoftirqd/209:00:202
2279699190,1cyclictest0-21swapper/208:10:132
2279699190,12cyclictest917-21sed10:20:012
2279699190,12cyclictest917-21sed10:20:002
2279599193,15cyclictest0-21swapper/109:54:571
22795991917,1cyclictest0-21swapper/112:01:521
2279599190,1cyclictest0-21swapper/110:57:451
2279599190,18cyclictest12479-21timerwakeupswit10:35:221
2279399192,16cyclictest1884-21tr11:15:140
2279399190,16cyclictest0-21swapper/010:40:120
2279699183,1cyclictest28-21ksoftirqd/208:40:012
2279699182,1cyclictest28-21ksoftirqd/212:05:152
2279699182,15cyclictest28-21ksoftirqd/210:25:222
22796991814,3cyclictest20739-21cut09:00:012
22796991813,4cyclictest28-21ksoftirqd/207:30:142
22796991813,3cyclictest0-21swapper/209:07:342
2279699180,3cyclictest0-21swapper/212:35:142
2279699180,2cyclictest21916-21cpuspeed_turbos11:50:122
2279699180,17cyclictest1698-21cron07:30:012
2279699180,16cyclictest0-21swapper/211:20:002
2279599182,15cyclictest25323-21cpuspeed_turbos10:05:131
22793991816,1cyclictest0-21swapper/010:40:000
22793991815,2cyclictest26616-21tlsmgr09:46:390
22793991815,2cyclictest17084-21grep09:50:120
22793991814,2cyclictest1856-21systemd-udevd08:28:520
2279399180,3cyclictest8661-21cron12:25:000
2279399180,3cyclictest455-21plymouthd07:40:000
22796991715,1cyclictest219462chrt10:52:372
22796991715,1cyclictest11401-21apt12:29:592
22796991715,1cyclictest0-21swapper/211:40:232
22796991715,1cyclictest0-21swapper/210:00:222
22796991714,2cyclictest4646-21http_loadtime08:30:162
22796991714,2cyclictest32664-21systemctl08:25:012
22796991714,2cyclictest29447-21nvmesmart_nvme011:05:212
22796991714,2cyclictest21732-21/usr/sbin/munin08:05:202
22796991714,2cyclictest18395-21tr09:50:172
22796991714,2cyclictest16629-21/usr/sbin/munin10:45:172
22796991714,2cyclictest15133-21nfsd410:40:182
22796991714,2cyclictest13815-21expr07:50:152
22796991714,1cyclictest0-21swapper/210:31:082
2279699171,1cyclictest0-21swapper/209:55:142
2279699171,15cyclictest5672-21sed09:30:012
2279699170,2cyclictest7139-21nfsd409:30:172
2279699170,2cyclictest3450-21gsd-color07:57:122
2279699170,2cyclictest28453-21nfsd412:00:172
2279699170,2cyclictest2242-21postgres09:22:122
2279699170,16cyclictest993-21dbus-daemon08:20:012
2279699170,16cyclictest8296-21expr07:40:152
2279699170,16cyclictest8296-21expr07:40:142
2279699170,16cyclictest3450-21gsd-color12:10:192
2279699170,16cyclictest32126-21nfsd411:10:172
2279699170,16cyclictest3053-21systemd-logind11:34:512
2279699170,16cyclictest30519-21pzem_power07:20:192
2279699170,16cyclictest28483-21ls10:10:132
2279699170,16cyclictest25971-21proc_pri11:55:212
2279699170,16cyclictest25490-21chrt07:11:002
2279699170,16cyclictest25383-21expr10:05:142
2279699170,16cyclictest19058-21apache_volume11:45:122
2279699170,16cyclictest14220-21nfsd411:35:192
2279699170,16cyclictest12144-21pzem_voltage10:35:222
2279699170,16cyclictest11710-21mii-tool07:45:162
2279699170,15cyclictest3989-21H222:10:212
22795991715,1cyclictest0-21swapper/112:35:161
22795991715,1cyclictest0-21swapper/108:35:001
22795991714,2cyclictest8955-21ntpq11:25:191
22795991714,2cyclictest4521-21latency_hist11:20:011
22795991714,2cyclictest21737-21chrt09:55:581
22795991714,2cyclictest16422-21cpuspeed_turbos07:55:141
22795991714,2cyclictest14220-21nfsd411:35:171
22795991714,2cyclictest1351-21lxd10:24:421
2279599171,15cyclictest29311-21cut11:05:201
2279599171,15cyclictest265812chrt11:57:071
2279599171,15cyclictest0-21swapper/110:51:511
2279599171,15cyclictest0-21swapper/109:45:201
2279599170,2cyclictest6392-21nfsd407:35:191
2279599170,2cyclictest31533-21run-parts12:05:211
2279599170,2cyclictest27460-21awk07:15:171
2279599170,2cyclictest23814-21expr07:10:151
2279599170,2cyclictest14504-21snapd07:25:271
2279599170,2cyclictest1351-21lxd12:16:431
2279599170,2cyclictest1035-21thermald11:20:201
2279599170,16cyclictest7640-21ls10:30:011
2279599170,16cyclictest4766-21sendmail_mailst09:25:201
2279599170,16cyclictest30100-21/usr/sbin/munin08:20:161
2279599170,16cyclictest23159-21ntpq08:05:191
2279599170,16cyclictest14499-21snapd08:25:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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