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2026-03-10 - 00:09
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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 Mar 09, 2026 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9043993129,0cyclictest0-21swapper/010:00:150
9043993129,0cyclictest0-21swapper/010:00:150
905699220,18cyclictest0-21swapper/208:02:392
9052992213,0cyclictest0-21swapper/110:40:441
904399226,14cyclictest0-21swapper/011:52:200
904399220,18cyclictest0-21swapper/010:30:130
9043992121,0cyclictest0-21swapper/011:05:140
9043992121,0cyclictest0-21swapper/008:30:130
905699203,1cyclictest0-21swapper/209:12:392
905699202,17cyclictest0-21swapper/211:42:402
9056992016,3cyclictest27960-21nfsd407:40:192
9056992016,3cyclictest0-21swapper/208:55:422
905699192,2cyclictest25536-21cut12:25:002
905699192,16cyclictest0-21swapper/210:17:422
9056991917,1cyclictest0-21swapper/209:45:032
9056991915,3cyclictest0-21swapper/212:39:262
9056991915,3cyclictest0-21swapper/207:52:142
9056991915,3cyclictest0-21swapper/207:52:142
905699191,17cyclictest4035-21H222:10:212
905699190,18cyclictest0-21swapper/209:25:012
905699190,16cyclictest4035-21H222:10:212
905699190,16cyclictest3989-21H222:10:212
905699190,16cyclictest0-21swapper/209:34:512
905299194,1cyclictest0-21swapper/112:05:191
905299192,16cyclictest5791-21if_enp1s010:50:171
9052991917,1cyclictest0-21swapper/111:06:271
905299190,3cyclictest3438-21fschecks_time07:55:131
905299190,16cyclictest3981-21H222:10:211
904399197,6cyclictest0-21swapper/012:30:000
904399193,2cyclictest8857-21cut10:00:010
904399193,15cyclictest0-21swapper/009:34:160
9043991917,1cyclictest0-21swapper/010:46:240
9043991916,2cyclictest24466-21fschecks_count07:35:150
9043991916,2cyclictest21110-21if_eno112:15:150
9043991915,3cyclictest0-21swapper/010:19:010
9043991915,2cyclictest4085-21fschecks_count09:50:140
904399191,16cyclictest26583-21perf11:30:000
904399190,1cyclictest0-21swapper/008:50:190
905699182,1cyclictest4228-21cat11:45:152
905699182,1cyclictest4228-21cat11:45:152
905699182,1cyclictest0-21swapper/208:54:372
905699182,15cyclictest233012chrt09:27:332
905699182,15cyclictest22676-21switchtime07:30:202
9056991815,2cyclictest28174-21python312:30:002
9056991815,2cyclictest16711-21ps07:20:192
9056991814,3cyclictest3989-21H222:10:212
9056991813,2cyclictest3979-21H222:10:212
9056991810,4cyclictest0-21swapper/211:35:012
905699180,17cyclictest3981-21H222:10:212
905699180,17cyclictest29847-21nfsd410:35:172
905699180,16cyclictest3989-21H222:10:212
9052991816,1cyclictest285982sleep109:35:331
9052991816,1cyclictest285982sleep109:35:331
9052991816,1cyclictest0-21swapper/112:15:131
9052991816,1cyclictest0-21swapper/111:53:151
9052991816,1cyclictest0-21swapper/111:35:011
9052991816,1cyclictest0-21swapper/110:30:311
9052991814,2cyclictest1038-21http_loadtime09:45:151
905299181,16cyclictest8690-21cut10:00:001
905299181,16cyclictest24690-21grep12:20:221
905299181,16cyclictest16906-21tr08:20:121
905299180,17cyclictest5601-21lxd09:26:411
905299180,15cyclictest3989-21H222:10:211
905299180,15cyclictest3985-21H222:10:211
904399182,15cyclictest29096-21ls10:35:130
9043991816,2cyclictest26616-21tlsmgr11:24:480
9043991816,1cyclictest0-21swapper/011:45:260
9043991816,1cyclictest0-21swapper/011:45:260
9043991816,1cyclictest0-21swapper/011:40:500
9043991816,1cyclictest0-21swapper/011:11:010
9043991816,1cyclictest0-21swapper/010:25:140
9043991816,1cyclictest0-21swapper/009:10:230
9043991815,2cyclictest11755-21date07:15:010
9043991813,2cyclictest4035-21H222:10:210
904399181,2cyclictest2957-21rtkit-daemon09:49:420
904399181,16cyclictest0-21swapper/012:05:130
904399180,2cyclictest3983-21H222:10:210
904399180,17cyclictest0-21swapper/007:50:130
904399180,17cyclictest0-21swapper/007:50:130
9056991715,1cyclictest30349-21open_files12:30:172
9056991715,1cyclictest0-21swapper/210:20:222
9056991714,2cyclictest4035-21H222:10:212
9056991714,2cyclictest399-20systemd-journal10:09:002
9056991714,2cyclictest3721-21expr09:50:132
9056991714,2cyclictest3414-21master08:46:382
9056991714,2cyclictest11529-21cut10:05:012
9056991714,2cyclictest11529-21cut10:05:012
9056991714,2cyclictest10029-21/usr/sbin/munin09:05:162
9056991713,3cyclictest32057-21sort11:39:002
905699171,1cyclictest17034-21awk09:15:172
905699170,2cyclictest3716-21/usr/sbin/munin10:45:212
905699170,2cyclictest27717-21find08:38:592
905699170,2cyclictest26807-21grep09:35:132
905699170,2cyclictest26807-21grep09:35:132
905699170,2cyclictest22197-21cat12:15:202
905699170,2cyclictest20035-21grep08:25:132
905699170,2cyclictest18541-21grep12:10:152
905699170,2cyclictest18011-21nfsd408:20:172
905699170,2cyclictest14743-21mailstats11:05:192
905699170,2cyclictest0-21swapper/211:50:142
905699170,16cyclictest8918-21nfsd410:55:182
905699170,16cyclictest8518-21netstat09:00:182
905699170,16cyclictest4035-21H222:10:212
905699170,16cyclictest30407-21if_err_enp1s009:40:162
905699170,16cyclictest21894-21expr11:20:132
905699170,16cyclictest15505-21proc_pri08:15:202
905699170,16cyclictest14862-21expr10:10:142
905699170,16cyclictest14755-21munin-run07:20:012
905699170,16cyclictest12060-21http_loadtime08:10:172
905699170,16cyclictest10394-21grep11:55:172
905299175,6cyclictest0-21swapper/112:37:251
9052991714,2cyclictest8993-21awk10:55:191
9052991714,2cyclictest5601-21lxd09:22:411
9052991714,2cyclictest3300-21ls09:50:131
9052991714,2cyclictest29688-21chrt11:35:061
9052991714,2cyclictest28909-21/usr/sbin/munin12:30:191
9052991714,2cyclictest27962-21chrt12:28:161
9052991714,2cyclictest22980-21find10:25:011
9052991714,2cyclictest0-21swapper/110:45:171
9052991713,2cyclictest433-21fschecks_time07:50:141
9052991713,2cyclictest433-21fschecks_time07:50:141
905299171,1cyclictest3979-21H222:10:211
905299171,15cyclictest21-21ksoftirqd/107:40:481
905299171,15cyclictest15059-21chrt09:12:421
905299171,15cyclictest0-21swapper/111:25:141
905299170,2cyclictest20137-21expr08:25:131
905299170,2cyclictest19987-21/usr/sbin/munin10:20:181
905299170,2cyclictest1478-21snapd08:32:391
905299170,2cyclictest12407-21sed09:09:011
905299170,2cyclictest0-21swapper/108:40:131
905299170,1cyclictest3991-21H222:10:211
905299170,1cyclictest0-21swapper/108:56:471
905299170,16cyclictest9965-21date09:05:021
905299170,16cyclictest3987-21H222:10:211
905299170,16cyclictest3979-21H222:10:211
905299170,16cyclictest3976-21H222:10:211
905299170,16cyclictest3260-21sort11:45:131
905299170,16cyclictest3260-21sort11:45:131
905299170,16cyclictest31697-21chrt09:43:021
905299170,16cyclictest19913-21missed_timers11:15:181
905299170,16cyclictest19122-21pzem_energy12:10:191
905299170,16cyclictest17053-21sed11:10:191
905299170,16cyclictest16383-21perf08:20:001
905299170,16cyclictest1484-21snapd11:40:081
905299170,16cyclictest14402-21apt-get07:20:011
905299170,16cyclictest11884-21expr08:10:151
9043991714,2cyclictest3976-21H222:10:210
9043991714,2cyclictest318742sleep011:38:090
9043991714,2cyclictest31800-21smartctl08:45:140
9043991714,2cyclictest30176-21cat08:40:210
9043991714,2cyclictest28228-21mailstats09:35:200
9043991714,2cyclictest28228-21mailstats09:35:200
9043991714,2cyclictest27251-21cstates11:30:140
9043991714,2cyclictest24190-21sed12:20:180
9043991714,2cyclictest20661-21grep10:20:150
9043991714,2cyclictest19866-21apt-config08:25:020
9043991714,2cyclictest18907-21cstates09:20:130
9043991714,2cyclictest12485-21grep08:10:190
9043991714,2cyclictest11083-21sort11:00:150
904399170,2cyclictest9786-21nfsd408:05:160
904399170,2cyclictest8465-21needreboot09:00:180
904399170,2cyclictest3987-21H222:10:210
904399170,2cyclictest15567-21memory10:10:170
904399170,2cyclictest14315-21ls08:15:140
904399170,16cyclictest4035-21H222:10:210
904399170,16cyclictest31664-21apache_volume12:35:120
904399170,16cyclictest31632-21chrt07:48:080
904399170,16cyclictest30908-21expr09:40:180
904399170,16cyclictest21208-21grep09:25:130
904399170,16cyclictest19162-21cstates11:15:140
904399170,16cyclictest18342-21cut09:20:010
904399170,16cyclictest16919-21tr08:20:120
904399170,16cyclictest12130-21expr10:05:140
904399170,16cyclictest11680-21snapd08:55:090
904399170,16cyclictest10707-21fschecks_time09:05:160
904399170,16cyclictest10151-21lxd07:20:410
904399170,15cyclictest3979-21H222:10:210
904399170,15cyclictest3976-21H222:10:210
904399170,15cyclictest0-21swapper/011:58:240
9056991614,1cyclictest0-21swapper/212:00:152
9056991614,1cyclictest0-21swapper/210:50:162
9056991614,1cyclictest0-21swapper/208:30:112
9056991613,2cyclictest27070-21nfsd410:30:172
905699160,15cyclictest28866-21expr08:40:132
905699160,15cyclictest0-21swapper/212:05:162
905699160,15cyclictest0-21swapper/211:10:192
905699160,15cyclictest0-21swapper/210:40:112
9052991614,1cyclictest0-21swapper/110:15:211
9052991614,1cyclictest0-21swapper/110:00:211
9052991614,1cyclictest0-21swapper/110:00:211
9052991614,1cyclictest0-21swapper/108:00:181
9052991613,2cyclictest28772-21cut10:35:121
9052991612,2cyclictest21290-21grep07:30:131
905299160,1cyclictest0-21swapper/112:00:141
905299160,15cyclictest31062-21chrt08:45:031
905299160,15cyclictest24002-21grep09:30:131
905299160,15cyclictest0-21swapper/111:20:101
905299160,15cyclictest0-21swapper/110:10:161
905299160,15cyclictest0-21swapper/107:25:041
9043991613,2cyclictest0-21swapper/010:55:130
904399160,2cyclictest11997-21apache_volume12:00:130
904399160,15cyclictest19003-21ntpq12:10:180
904399160,15cyclictest0-21swapper/012:30:190
904399160,15cyclictest0-21swapper/010:41:270
9056991513,1cyclictest0-21swapper/209:55:082
905299150,1cyclictest0-21swapper/108:50:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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