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2026-06-22 - 11:02
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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 Jun 22, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24184992414,0cyclictest0-21swapper/123:34:421
24184992414,0cyclictest0-21swapper/123:34:421
2418399230,5cyclictest0-21swapper/022:39:200
2418599220,18cyclictest0-21swapper/222:59:562
2418599210,20cyclictest843-21systemd-network22:33:262
2418599210,20cyclictest0-21swapper/220:18:582
24183992119,1cyclictest0-21swapper/022:15:490
24185992017,2cyclictest15741-21nfsd419:50:192
2418599200,17cyclictest3981-21H222:10:212
2418499201,13cyclictest0-21swapper/123:02:451
2418499200,19cyclictest843-21systemd-network21:46:321
2418499200,18cyclictest0-21swapper/122:55:011
2418399202,5cyclictest0-21swapper/021:42:350
2418399200,2cyclictest4035-21H222:10:210
24185991917,1cyclictest0-21swapper/223:25:432
24185991917,1cyclictest0-21swapper/200:22:302
24185991914,2cyclictest3987-21H222:10:212
24185991912,3cyclictest0-21swapper/219:16:512
24185991912,3cyclictest0-21swapper/219:16:512
2418599190,18cyclictest26049-21fschecks_count22:05:142
2418599190,16cyclictest4035-21H222:10:212
2418499193,15cyclictest21-21ksoftirqd/100:00:281
24184991917,1cyclictest0-21swapper/121:16:071
2418499190,1cyclictest0-21swapper/122:37:131
2418499190,1cyclictest0-21swapper/100:12:281
24183991917,1cyclictest0-21swapper/021:58:580
2418399190,18cyclictest4035-21H222:10:210
2418399190,18cyclictest0-21swapper/023:24:450
24185991816,1cyclictest6506-21cat20:30:232
24185991816,1cyclictest28-21ksoftirqd/221:38:152
24185991816,1cyclictest0-21swapper/222:12:212
24185991815,2cyclictest5677-21chrt19:34:172
24185991815,2cyclictest399-20systemd-journal19:20:002
24185991815,2cyclictest3351-21lxd22:40:512
24185991815,2cyclictest21054-21cat23:50:122
24185991814,3cyclictest5946-21ntp_offset22:25:182
24185991814,3cyclictest1829-21systemd-journal20:05:172
24185991814,3cyclictest12762-21proc_pri00:30:202
2418599181,16cyclictest18452-21nfsd421:50:202
2418599180,3cyclictest4035-21H222:10:212
2418599180,3cyclictest22879-21cut22:00:142
2418599180,17cyclictest14731-21cat23:40:012
2418599180,17cyclictest13172-21smartctl21:40:182
2418599180,15cyclictest3976-21H222:10:212
2418499182,15cyclictest0-21swapper/120:05:011
24184991816,1cyclictest0-21swapper/123:59:061
24184991816,1cyclictest0-21swapper/120:15:361
24184991815,2cyclictest0-21swapper/122:05:191
24184991814,3cyclictest3987-21H222:10:211
24184991813,2cyclictest4035-21H222:10:211
24184991813,2cyclictest4035-21H222:10:211
2418499180,2cyclictest0-21swapper/121:44:321
2418499180,16cyclictest3989-21H222:10:211
2418499180,15cyclictest3991-21H222:10:211
2418399182,15cyclictest7369-21cpuspeed_turbos22:30:140
2418399182,15cyclictest12156-21if_err_enp1s000:30:160
24183991814,3cyclictest8484-21basename21:35:010
24183991814,3cyclictest4099-21H222:10:210
24183991814,3cyclictest14496-21snapd20:25:270
24183991814,2cyclictest15393-21nfsd400:35:160
24183991813,2cyclictest3989-21H222:10:210
2418399181,2cyclictest15848-21apt-key22:45:010
2418399180,2cyclictest3991-21H222:10:210
2418399180,1cyclictest3983-21H222:10:210
2418399180,17cyclictest3981-21H222:10:210
2418399180,17cyclictest0-21swapper/000:00:120
2418399180,16cyclictest3987-21H222:10:210
2418399180,16cyclictest3981-21H222:10:210
2418399180,16cyclictest3981-21H222:10:210
2418399180,16cyclictest3979-21H222:10:210
2418399180,15cyclictest3979-21H222:10:210
24185991716,1cyclictest0-21swapper/223:15:192
24185991715,1cyclictest0-21swapper/221:19:372
24185991715,1cyclictest0-21swapper/220:45:152
24185991715,1cyclictest0-21swapper/219:43:222
24185991714,2cyclictest9930-21latency_hist20:40:012
24185991714,2cyclictest4035-21H222:10:212
24185991714,2cyclictest2191-21fschecks_time20:25:172
24185991714,2cyclictest16897-21nfsd420:50:172
24185991714,2cyclictest16878-21latency_hist21:50:002
24185991714,2cyclictest16264-21cut22:45:142
24185991714,2cyclictest0-21swapper/220:10:142
24185991713,3cyclictest26580-21perf23:05:002
2418599171,15cyclictest0-21swapper/220:55:122
2418599170,2cyclictest3981-21H222:10:212
2418599170,2cyclictest3981-21H222:10:212
2418599170,2cyclictest3976-21H222:10:212
2418599170,2cyclictest29333-21expr00:05:162
2418599170,16cyclictest4099-21H222:10:212
2418599170,16cyclictest3308-21if_enp1s000:15:142
2418599170,16cyclictest32653-21/usr/sbin/munin21:20:212
2418599170,16cyclictest3245-21grep22:20:212
2418599170,16cyclictest32125-21cpuspeed_turbos00:10:142
2418599170,16cyclictest31361-21cstates20:20:132
2418599170,16cyclictest28532-21perf00:05:012
2418599170,16cyclictest20539-21df21:55:132
2418599170,16cyclictest1348-21lxd00:36:342
2418599170,16cyclictest10754-21basename22:35:162
2418599170,16cyclictest0-21swapper/222:15:142
2418599170,16cyclictest0-21swapper/221:30:142
24184991715,1cyclictest4679-21nfsd419:30:171
24184991715,1cyclictest17213-21pzem_energy20:50:201
24184991714,2cyclictest7454-21nfsd419:35:191
24184991714,2cyclictest7256-21/usr/sbin/munin22:30:111
24184991714,2cyclictest455-21plymouthd21:38:591
24184991714,2cyclictest3989-21H222:10:211
24184991714,2cyclictest3987-21H222:10:211
24184991714,2cyclictest3987-21H222:10:211
24184991714,2cyclictest22277-21ls22:00:011
24184991714,2cyclictest18297-21latency19:55:181
24184991714,2cyclictest1085-21gdbus22:45:211
24184991713,3cyclictest9666-21php7.020:39:011
24184991713,3cyclictest4099-21H222:10:211
24184991713,3cyclictest4099-21H222:10:211
2418499171,15cyclictest0-21swapper/119:10:141
2418499170,2cyclictest499-21apt-key23:15:021
2418499170,2cyclictest4099-21H222:10:211
2418499170,2cyclictest4099-21H222:10:211
2418499170,2cyclictest3981-21H222:10:211
2418499170,2cyclictest3976-21H222:10:211
2418499170,2cyclictest3976-21H222:10:211
2418499170,2cyclictest29840-21postgres23:10:021
2418499170,2cyclictest14290-21php7.023:39:011
2418499170,1cyclictest3991-21H222:10:211
2418499170,16cyclictest5190-21nvmesmart_nvme023:20:191
2418499170,16cyclictest4174-21idleruntime21:25:161
2418499170,16cyclictest4099-21H222:10:211
2418499170,16cyclictest4035-21H222:10:211
2418499170,16cyclictest3989-21H222:10:211
2418499170,16cyclictest3989-21H222:10:211
2418499170,16cyclictest3987-21H222:10:211
2418499170,16cyclictest29723-21ntp_states22:10:201
2418499170,16cyclictest2735-21cat00:15:121
2418499170,16cyclictest22551-21ntp_offset21:00:181
2418499170,16cyclictest2071-21cat22:20:131
2418499170,16cyclictest18922-21chrt23:45:171
2418499170,16cyclictest17829-21/usr/sbin/munin21:50:161
2418499170,16cyclictest14505-21snapd22:55:271
2418499170,16cyclictest0-21swapper/121:05:151
24183991717,0cyclictest0-21swapper/019:25:140
24183991715,1cyclictest9-21ksoftirqd/023:40:370
24183991715,1cyclictest9-21ksoftirqd/023:39:410
24183991715,1cyclictest9-21ksoftirqd/000:10:550
24183991715,1cyclictest0-21swapper/021:25:140
24183991715,1cyclictest0-21swapper/020:45:130
24183991714,2cyclictest4691-21grep19:30:160
24183991714,2cyclictest3989-21H222:10:210
24183991714,2cyclictest3983-21H222:10:210
24183991714,2cyclictest3976-21H222:10:210
24183991714,2cyclictest30160-21awk00:05:200
24183991714,2cyclictest28574-21ntp_offset21:10:180
24183991714,2cyclictest27898-21fschecks_time19:15:150
24183991714,2cyclictest27898-21fschecks_time19:15:140
24183991713,2cyclictest3991-21H222:10:210
24183991713,2cyclictest3991-21H222:10:210
2418399171,15cyclictest9-21ksoftirqd/019:12:540
2418399170,2cyclictest8865-21apache_processe21:35:130
2418399170,2cyclictest3991-21H222:10:210
2418399170,2cyclictest3976-21H222:10:210
2418399170,2cyclictest22748-21grep20:05:140
2418399170,2cyclictest18287-21memory21:50:180
2418399170,1cyclictest4035-21H222:10:210
2418399170,16cyclictest6479-21expr19:35:150
2418399170,16cyclictest3989-21H222:10:210
2418399170,16cyclictest3987-21H222:10:210
2418399170,16cyclictest30327-21taskset20:15:450
2418399170,16cyclictest25776-21latency_hist00:00:000
2418399170,16cyclictest24229-21chrt23:00:050
2418399170,16cyclictest2354-21/usr/sbin/munin00:15:100
2418399170,16cyclictest22598-21wc22:55:170
2418399170,16cyclictest22131-21ntp_states23:50:180
2418399170,16cyclictest16860-21needreboot20:50:180
2418399170,16cyclictest10600-21/usr/sbin/munin19:40:200
2418399170,16cyclictest0-21swapper/022:10:190
2418399170,16cyclictest0-21swapper/021:15:140
24185991614,1cyclictest0-21swapper/220:40:132
24185991614,1cyclictest0-21swapper/219:55:112
24185991614,1cyclictest0-21swapper/219:25:142
24185991613,2cyclictest3970-21cpuspeed_turbos23:20:142
2418599160,1cyclictest25130-21fschecks_count19:10:162
2418599160,1cyclictest0-21swapper/222:50:142
2418599160,15cyclictest25493-21systemctl21:05:232
2418599160,15cyclictest22210-21missed_timers21:00:172
2418599160,15cyclictest0-21swapper/221:25:112
2418599160,15cyclictest0-21swapper/221:10:022
24184991614,1cyclictest3450-21gsd-color21:20:111
24184991614,1cyclictest0-21swapper/120:25:181
24184991614,1cyclictest0-21swapper/119:20:141
2418499160,1cyclictest0-21swapper/120:45:191
2418499160,1cyclictest0-21swapper/120:30:151
2418499160,1cyclictest0-21swapper/119:25:161
2418499160,15cyclictest8235-21grep00:25:151
2418499160,15cyclictest10205-21/usr/sbin/munin20:40:101
2418499160,15cyclictest0-21swapper/122:15:211
24183991614,1cyclictest8185-21apt-get00:25:140
24183991614,1cyclictest0-21swapper/023:10:120
2418399160,1cyclictest0-21swapper/021:20:160
2418399160,15cyclictest21171-21apt-get21:00:110
2418399160,15cyclictest0-21swapper/022:40:130
2418399160,15cyclictest0-21swapper/020:35:150
2418399160,15cyclictest0-21swapper/020:30:080
2418399160,15cyclictest0-21swapper/020:00:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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