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2026-04-06 - 07:08
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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 Mon Apr 06, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2569299260,25cyclictest0-21swapper/121:55:101
2569199230,22cyclictest0-21swapper/020:40:410
2569399210,20cyclictest843-21systemd-network21:01:252
2569399204,1cyclictest0-21swapper/220:50:012
2569299204,2cyclictest14232-21fschecks_count22:35:151
2569199203,16cyclictest3987-21H222:10:210
2569399192,16cyclictest9648-21ntp_kernel_pll_00:20:172
2569399192,16cyclictest3983-21H222:10:212
2569399192,16cyclictest0-21swapper/221:17:102
25693991917,1cyclictest0-21swapper/220:28:002
25693991916,2cyclictest3989-21H222:10:212
25693991916,2cyclictest3987-21H222:10:212
25693991916,2cyclictest24525-21date21:00:012
25693991914,4cyclictest4035-21H222:10:212
2569399190,2cyclictest3983-21H222:10:212
2569399190,16cyclictest3987-21H222:10:212
2569299192,1cyclictest0-21swapper/123:26:121
25692991915,3cyclictest25362-21fschecks_time22:55:141
25692991911,7cyclictest8921-21perf23:25:001
2569299190,2cyclictest4099-21H222:10:211
2569299190,16cyclictest3985-21H222:10:211
2569199193,15cyclictest9-21ksoftirqd/021:05:530
2569199193,15cyclictest0-21swapper/019:20:200
25691991917,1cyclictest30374-21expr23:05:130
25691991917,1cyclictest0-21swapper/020:30:070
2569199190,2cyclictest3991-21H222:10:210
2569199190,2cyclictest3979-21H222:10:210
2569199190,16cyclictest4099-21H222:10:210
2569199190,15cyclictest0-21swapper/000:18:010
2569399182,15cyclictest4099-21H222:10:212
25693991816,1cyclictest0-21swapper/220:53:022
25693991815,2cyclictest3983-21H222:10:212
25693991814,3cyclictest4099-21H222:10:212
25693991814,3cyclictest3979-21H222:10:212
2569399180,3cyclictest32637-21turbostat23:10:002
2569399180,2cyclictest4035-21H222:10:212
2569399180,2cyclictest3991-21H222:10:212
2569399180,2cyclictest3976-21H222:10:212
2569399180,2cyclictest16780-21nvmesmart_nvme021:40:192
2569399180,17cyclictest2007-21systemd-journal20:41:332
2569399180,17cyclictest16749-21snapd23:52:482
2569399180,17cyclictest0-21swapper/219:10:162
2569399180,17cyclictest0-21swapper/200:13:552
2569399180,16cyclictest3985-21H222:10:212
2569399180,16cyclictest3981-21H222:10:212
25692991815,2cyclictest12389-21ntpq00:25:191
25692991815,2cyclictest12389-21ntpq00:25:191
25692991814,3cyclictest3976-21H222:10:211
25692991814,2cyclictest31918-21pzem21:10:201
25692991814,2cyclictest31367-21nfsd423:05:171
2569299181,16cyclictest0-21swapper/122:33:221
2569299181,16cyclictest0-21swapper/121:50:181
2569299180,3cyclictest3981-21H222:10:211
2569299180,2cyclictest3991-21H222:10:211
2569299180,2cyclictest3985-21H222:10:211
2569299180,17cyclictest3983-21H222:10:211
2569299180,16cyclictest15132-21cut00:30:191
2569299180,15cyclictest4099-21H222:10:211
2569299180,15cyclictest4035-21H222:10:211
2569299180,15cyclictest3989-21H222:10:211
2569299180,15cyclictest3985-21H222:10:211
25691991815,2cyclictest4099-21H222:10:210
25691991813,2cyclictest3983-21H222:10:210
25691991813,2cyclictest3983-21H222:10:210
2569199180,3cyclictest3985-21H222:10:210
2569199180,3cyclictest0-21swapper/023:37:400
2569199180,2cyclictest4099-21H222:10:210
2569199180,2cyclictest4099-21H222:10:210
2569199180,2cyclictest3991-21H222:10:210
2569199180,2cyclictest3989-21H222:10:210
2569199180,17cyclictest3991-21H222:10:210
2569199180,16cyclictest3976-21H222:10:210
2569199180,16cyclictest0-21swapper/019:27:520
2569199180,15cyclictest3979-21H222:10:210
25693991715,1cyclictest0-21swapper/222:40:122
25693991715,1cyclictest0-21swapper/221:25:162
25693991714,2cyclictest3991-21H222:10:212
25693991714,2cyclictest3413-21cut22:15:172
25693991714,2cyclictest3413-21cut22:15:172
25693991714,2cyclictest23142-21perf21:55:002
25693991714,2cyclictest14750-21cron23:34:592
25693991714,2cyclictest1079-21cups-browsed20:30:202
25693991714,2cyclictest0-21swapper/223:25:202
25693991714,2cyclictest0-21swapper/223:00:122
25693991714,2cyclictest0-21swapper/219:50:142
25693991713,3cyclictest3981-21H222:10:212
25693991713,3cyclictest3981-21H222:10:212
25693991713,3cyclictest3981-21H222:10:212
2569399171,15cyclictest3991-21H222:10:212
2569399170,2cyclictest3987-21H222:10:212
2569399170,2cyclictest3979-21H222:10:212
2569399170,2cyclictest3976-21H222:10:212
2569399170,2cyclictest32529-21fschecks_count22:10:132
2569399170,2cyclictest27745-21proc_pri23:55:202
2569399170,2cyclictest19758-21expr22:45:122
2569399170,2cyclictest18247-21cut21:45:142
2569399170,2cyclictest15473-21cat22:35:212
2569399170,1cyclictest4099-21H222:10:212
2569399170,16cyclictest9068-21cut22:25:152
2569399170,16cyclictest455-21plymouthd19:25:162
2569399170,16cyclictest3976-21H222:10:212
2569399170,16cyclictest22221-21ntp_offset23:45:182
2569399170,16cyclictest16410-21cron19:50:012
2569399170,16cyclictest10967-21grep21:30:192
2569399170,16cyclictest0-21swapper/222:55:142
2569399170,16cyclictest0-21swapper/222:00:162
2569299172,14cyclictest0-21swapper/121:20:211
25692991714,2cyclictest846-21nfsd422:10:171
25692991714,2cyclictest8216-21nfsd421:25:191
25692991714,2cyclictest3981-21H222:10:211
25692991714,2cyclictest30712-21sort00:00:201
25692991714,2cyclictest17226-21fschecks_time20:45:121
25692991713,3cyclictest3987-21H222:10:211
25692991713,3cyclictest0-21swapper/100:13:141
2569299171,15cyclictest12195-21cat19:40:141
2569299170,2cyclictest4099-21H222:10:211
2569299170,2cyclictest4099-21H222:10:211
2569299170,2cyclictest3991-21H222:10:211
2569299170,2cyclictest3991-21H222:10:211
2569299170,2cyclictest3976-21H222:10:211
2569299170,2cyclictest30398-21ntpq22:05:191
2569299170,2cyclictest28691-21cron19:15:021
2569299170,2cyclictest16696-21nfsd421:40:171
2569299170,2cyclictest14099-21/usr/sbin/munin19:45:121
2569299170,1cyclictest3987-21H222:10:211
2569299170,1cyclictest3979-21H222:10:211
2569299170,16cyclictest9008-21nfsd420:30:161
2569299170,16cyclictest8221-21cat00:20:011
2569299170,16cyclictest5883-21nfsd420:25:171
2569299170,16cyclictest4035-21H222:10:211
2569299170,16cyclictest3987-21H222:10:211
2569299170,16cyclictest3981-21H222:10:211
2569299170,16cyclictest3976-21H222:10:211
2569299170,16cyclictest3010-21postgres23:13:231
2569299170,16cyclictest30096-21cat23:05:001
2569299170,16cyclictest2522-21grep19:25:151
2569299170,16cyclictest23235-21nfsd422:50:171
2569299170,16cyclictest22992-21smtp23:48:121
2569299170,16cyclictest21687-21cat22:50:001
25691991714,2cyclictest7265-21cat21:25:130
25691991714,2cyclictest5734-21expr19:30:140
25691991714,2cyclictest455-21plymouthd00:10:090
25691991714,2cyclictest3989-21H222:10:210
25691991714,2cyclictest3922-21tr23:15:130
25691991714,2cyclictest31485-21cron22:10:010
25691991714,2cyclictest20973-21cut21:50:130
25691991714,2cyclictest2013-21awk21:15:200
25691991714,2cyclictest1603-21/usr/sbin/munin23:10:160
25691991714,2cyclictest15945-21lxd19:58:500
25691991714,2cyclictest15250-21switchtime22:35:210
25691991714,2cyclictest11728-21python323:30:000
25691991714,2cyclictest11539-21fschecks_time22:30:130
25691991714,2cyclictest0-21swapper/020:49:040
2569199171,2cyclictest0-21swapper/000:20:420
2569199171,1cyclictest0-21swapper/000:35:160
2569199171,15cyclictest87522chrt23:23:020
2569199171,15cyclictest3987-21H222:10:210
2569199171,15cyclictest0-21swapper/022:50:010
2569199170,2cyclictest3991-21H222:10:210
2569199170,2cyclictest3985-21H222:10:210
2569199170,2cyclictest3983-21H222:10:210
2569199170,2cyclictest3981-21H222:10:210
2569199170,2cyclictest3979-21H222:10:210
2569199170,2cyclictest22397-21cat22:50:120
2569199170,1cyclictest3985-21H222:10:210
2569199170,16cyclictest6130-21http_loadtime22:20:150
2569199170,16cyclictest4099-21H222:10:210
2569199170,16cyclictest4099-21H222:10:210
2569199170,16cyclictest24889-21awk21:55:160
2569199170,16cyclictest2007-21systemd-journal20:59:560
2569199170,16cyclictest15346-21awk00:30:210
2569199170,16cyclictest0-21swapper/021:40:170
25693991614,1cyclictest74822chrt00:15:342
25693991614,1cyclictest0-21swapper/200:05:132
2569399160,15cyclictest0-21swapper/223:15:152
2569399160,15cyclictest0-21swapper/223:10:102
25692991614,1cyclictest10239-21expr21:30:151
25692991614,1cyclictest0-21swapper/123:50:041
25692991614,1cyclictest0-21swapper/122:40:171
25692991614,1cyclictest0-21swapper/122:22:451
25692991614,1cyclictest0-21swapper/121:15:151
25692991614,1cyclictest0-21swapper/120:40:131
2569299160,2cyclictest410-21missed_timers00:05:161
2569299160,2cyclictest26463-21expr22:00:161
2569299160,15cyclictest0-21swapper/120:35:201
2569299160,14cyclictest0-21swapper/123:55:291
25691991614,1cyclictest18102-21dpkg21:45:120
25691991614,1cyclictest0-21swapper/022:00:170
25691991614,1cyclictest0-21swapper/020:50:140
25691991614,1cyclictest0-21swapper/020:00:140
25691991614,1cyclictest0-21swapper/019:50:130
25691991614,1cyclictest0-21swapper/019:15:140
25691991613,2cyclictest24114-21cat23:50:120
2569199160,2cyclictest12538-21grep23:30:140
2569199160,1cyclictest0-21swapper/019:46:110
2569199160,15cyclictest30752-21expr21:10:130
2569199160,15cyclictest0-21swapper/021:21:140
25693991514,1cyclictest0-21swapper/223:40:132
2569199150,14cyclictest0-21swapper/000:00:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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