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2026-04-27 - 17:27
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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 792 highest latencies:
System rackdslot0.osadl.org (updated Mon Apr 27, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2580399240,23cyclictest0-21swapper/111:30:131
2580799214,16cyclictest7354-21basename07:35:002
25803992114,3cyclictest0-21swapper/112:01:401
25803992114,3cyclictest0-21swapper/112:01:401
2580799202,16cyclictest455-21plymouthd12:00:142
2580799202,16cyclictest455-21plymouthd12:00:132
25807992019,1cyclictest0-21swapper/208:25:152
2580799193,15cyclictest10717-21missed_timers12:25:152
2580799192,16cyclictest27831-21cat07:10:212
25807991915,3cyclictest28950-21cron11:05:012
25807991914,2cyclictest3983-21H222:10:212
2580799190,18cyclictest0-21swapper/209:10:112
2580799190,17cyclictest3987-21H222:10:212
2580799190,16cyclictest3991-21H222:10:212
2580799190,16cyclictest3979-21H222:10:212
2580399192,8cyclictest0-21swapper/107:55:171
2580399192,3cyclictest0-21swapper/109:07:281
25803991917,1cyclictest21-21ksoftirqd/111:11:491
25803991916,2cyclictest3987-21H222:10:211
2580399190,16cyclictest4035-21H222:10:211
25798991917,1cyclictest9-21ksoftirqd/007:36:070
25798991912,4cyclictest5407-21grep10:20:160
2579899190,2cyclictest3981-21H222:10:210
2579899190,18cyclictest0-21swapper/010:03:260
2580799182,1cyclictest324932sleep208:18:092
25807991816,1cyclictest28-21ksoftirqd/210:06:262
25807991816,1cyclictest0-21swapper/211:35:212
25807991815,2cyclictest23559-21cpuspeed_turbos10:55:152
25807991815,2cyclictest12617-21chrt08:40:102
25807991814,3cyclictest18371-21proc_pri09:45:202
2580799181,16cyclictest3365-21smtpd10:17:162
2580799181,16cyclictest3365-21smtpd10:17:152
2580799181,16cyclictest1516-21lxd07:42:422
2580799181,16cyclictest13392-21chrt11:33:272
2580799181,16cyclictest0-21swapper/211:50:372
2580799180,3cyclictest15113-21apt-config12:35:002
2580799180,2cyclictest3987-21H222:10:212
2580799180,2cyclictest3985-21H222:10:212
2580799180,17cyclictest4035-21H222:10:212
2580799180,17cyclictest3979-21H222:10:212
2580799180,16cyclictest3987-21H222:10:212
2580799180,16cyclictest3976-21H222:10:212
2580799180,15cyclictest3987-21H222:10:212
2580399182,1cyclictest14160-21cpuspeed_turbos11:35:151
2580399182,1cyclictest0-21swapper/108:54:151
2580399182,15cyclictest21-21ksoftirqd/108:18:461
25803991814,3cyclictest3989-21H222:10:211
25803991814,3cyclictest3989-21H222:10:211
25803991814,3cyclictest3981-21H222:10:211
25803991814,3cyclictest3979-21H222:10:211
25803991814,3cyclictest3979-21H222:10:211
25803991814,2cyclictest4099-21H222:10:211
2580399181,2cyclictest0-21swapper/107:52:311
2580399180,1cyclictest3985-21H222:10:211
2580399180,17cyclictest3983-21H222:10:211
2580399180,16cyclictest3985-21H222:10:211
2580399180,16cyclictest1829-21systemd-journal09:00:071
2579899183,14cyclictest0-21swapper/007:34:250
2579899182,15cyclictest2886-21iscsid11:55:100
25798991815,2cyclictest14747-21systemctl12:35:010
2579899180,2cyclictest4099-21H222:10:210
2579899180,2cyclictest3989-21H222:10:210
2579899180,2cyclictest3985-21H222:10:210
2579899180,2cyclictest3985-21H222:10:210
2579899180,1cyclictest0-21swapper/011:05:330
2579899180,18cyclictest0-21swapper/007:46:060
2579899180,17cyclictest3983-21H222:10:210
2579899180,16cyclictest3987-21H222:10:210
25807991715,1cyclictest3201-21JS22:10:212
25807991715,1cyclictest0-21swapper/212:05:122
25807991714,2cyclictest5458-21expr10:20:162
25807991714,2cyclictest4099-21H222:10:212
25807991714,2cyclictest31878-21basename11:10:012
25807991714,2cyclictest29098-21chrt09:09:102
25807991714,2cyclictest26101-21chrt09:02:372
25807991714,2cyclictest24737-21grep08:05:132
25807991714,2cyclictest24737-21grep08:05:122
25807991714,2cyclictest22619-21ntp_offset08:55:202
25807991714,2cyclictest16997-21ls07:50:132
25807991714,2cyclictest16586-21nfsd408:45:182
25807991714,2cyclictest15936-21fschecks_count10:40:152
25807991714,2cyclictest1354-21nvmesmart_nvme011:10:192
25807991713,3cyclictest0-21swapper/209:20:182
25807991713,2cyclictest4035-21H222:10:212
2580799171,1cyclictest26391-21grep11:55:172
2580799171,15cyclictest5967-21expr11:20:132
2580799170,2cyclictest8850-21timerwakeupswit08:30:232
2580799170,2cyclictest1313-21cstates08:20:142
2580799170,16cyclictest7898-21grep10:25:182
2580799170,16cyclictest4783-21fschecks_count12:15:142
2580799170,16cyclictest4525-21processes11:15:182
2580799170,16cyclictest3991-21H222:10:212
2580799170,16cyclictest3991-21H222:10:212
2580799170,16cyclictest29921-21sed07:15:172
2580799170,16cyclictest28389-21cat08:10:152
2580799170,16cyclictest21122-21expr10:50:142
2580799170,16cyclictest15337-21dpkg12:35:022
2580799170,16cyclictest14451-21cstates09:40:152
2580799170,16cyclictest11157-21open_files08:35:192
2580799170,16cyclictest0-21swapper/207:25:152
25803991715,1cyclictest30904-21pzem_energy11:05:191
25803991715,1cyclictest21-21ksoftirqd/108:56:511
25803991715,1cyclictest0-21swapper/111:51:341
25803991714,2cyclictest8690-21timerandwakeup08:30:211
25803991714,2cyclictest4331-21nfsd411:15:181
25803991714,2cyclictest3985-21H222:10:211
25803991714,2cyclictest3983-21H222:10:211
25803991714,2cyclictest3983-21H222:10:211
25803991714,2cyclictest3976-21H222:10:211
25803991714,2cyclictest32745-21cat09:15:151
25803991714,2cyclictest31606-21missed_timers12:05:171
25803991714,2cyclictest1829-21systemd-journal08:39:011
2580399170,3cyclictest0-21swapper/110:10:131
2580399170,2cyclictest8222-21nfsd412:20:181
2580399170,2cyclictest3989-21H222:10:211
2580399170,2cyclictest3979-21H222:10:211
2580399170,2cyclictest3976-21H222:10:211
2580399170,2cyclictest3976-21H222:10:211
2580399170,2cyclictest11090-21grep12:25:181
2580399170,1cyclictest3987-21H222:10:211
2580399170,1cyclictest0-21swapper/110:37:081
2580399170,16cyclictest8608-21if_err_lxdbr007:35:161
2580399170,16cyclictest3991-21H222:10:211
2580399170,16cyclictest3989-21H222:10:211
2580399170,16cyclictest3989-21H222:10:211
2580399170,16cyclictest3976-21H222:10:211
2580399170,16cyclictest25911-21python311:00:011
2580399170,16cyclictest22362-21systemctl10:50:201
2580399170,16cyclictest17590-21chrt08:48:581
2580399170,16cyclictest1517-21lxd08:42:421
2580399170,16cyclictest14501-21snapd11:25:031
2580399170,16cyclictest1300-21lxd10:24:421
2580399170,16cyclictest1079-21cups-browsed09:10:221
2580399170,15cyclictest4035-21H222:10:211
2580399170,15cyclictest3985-21H222:10:211
2580399170,15cyclictest3985-21H222:10:211
2580399170,15cyclictest3450-21gsd-color09:52:571
25798991715,1cyclictest9-21ksoftirqd/010:45:160
25798991714,2cyclictest4035-21H222:10:210
25798991714,2cyclictest3985-21H222:10:210
25798991714,2cyclictest3983-21H222:10:210
25798991714,2cyclictest3983-21H222:10:210
25798991714,2cyclictest21033-21cat10:50:120
2579899171,2cyclictest3985-21H222:10:210
2579899171,2cyclictest30183-21latency_hist08:15:020
2579899171,1cyclictest0-21swapper/012:20:450
2579899171,1cyclictest0-21swapper/008:50:170
2579899170,2cyclictest3981-21H222:10:210
2579899170,2cyclictest24506-21expr09:00:140
2579899170,2cyclictest22672-21fschecks_time08:00:130
2579899170,2cyclictest12472-21sort10:35:130
2579899170,2cyclictest10461-21if_eno110:30:140
2579899170,16cyclictest8992-21cat09:30:120
2579899170,16cyclictest5804-21seq09:25:090
2579899170,16cyclictest4475-21tr08:25:160
2579899170,16cyclictest4035-21H222:10:210
2579899170,16cyclictest4035-21H222:10:210
2579899170,16cyclictest3991-21H222:10:210
2579899170,16cyclictest3989-21H222:10:210
2579899170,16cyclictest3987-21H222:10:210
2579899170,16cyclictest3987-21H222:10:210
2579899170,16cyclictest398-21sshd10:12:420
2579899170,16cyclictest3976-21H222:10:210
2579899170,16cyclictest31516-21chrt07:20:080
2579899170,16cyclictest26616-21tlsmgr08:15:210
2579899170,16cyclictest23785-21processes11:50:200
2579899170,16cyclictest22493-21expr09:55:130
2579899170,16cyclictest18828-21sed09:45:210
2579899170,16cyclictest17301-21chrt10:40:460
2579899170,16cyclictest15945-21lxd11:24:420
2579899170,16cyclictest1240-21cpuspeed_turbos10:15:130
2579899170,16cyclictest1240-21cpuspeed_turbos10:15:130
2579899170,16cyclictest11921-21chrt08:38:400
2579899170,16cyclictest10077-21mailstats11:25:200
2579899170,15cyclictest3976-21H222:10:210
2579899170,15cyclictest0-21swapper/007:50:170
25807991614,1cyclictest0-21swapper/212:20:132
25807991614,1cyclictest0-21swapper/210:10:092
2580799160,15cyclictest31599-21awk07:20:132
2580799160,15cyclictest18382-21pzem_energy11:40:192
2580799160,15cyclictest0-21swapper/209:25:212
25803991614,1cyclictest0-21swapper/111:40:171
25803991614,1cyclictest0-21swapper/109:30:111
2580399160,16cyclictest0-21swapper/112:35:001
2580399160,15cyclictest3624-21fschecks_count09:20:151
2580399160,15cyclictest32535-21ls07:20:161
2580399160,15cyclictest17454-21chrt10:42:481
2580399160,15cyclictest0-21swapper/111:55:181
2580399160,15cyclictest0-21swapper/111:45:161
2580399160,15cyclictest0-21swapper/111:20:131
25798991614,1cyclictest31501-21latency12:05:160
25798991614,1cyclictest0-21swapper/010:55:140
25798991614,1cyclictest0-21swapper/009:10:160
25798991613,2cyclictest16559-21grep08:45:190
2579899160,15cyclictest816-21irqstats09:15:180
2579899160,15cyclictest17065-21cpuspeed_turbos11:40:130
2579899160,15cyclictest0-21swapper/012:25:120
2579899160,15cyclictest0-21swapper/012:14:210
2579899160,15cyclictest0-21swapper/011:45:210
2579899160,15cyclictest0-21swapper/008:20:220
25798991513,1cyclictest0-21swapper/011:10:120
25798991513,1cyclictest0-21swapper/010:25:140
2579899150,0cyclictest0-21swapper/011:35:050
2579899150,0cyclictest0-21swapper/009:05:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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