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2026-05-21 - 05:23
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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 Thu May 21, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3022399340,33cyclictest0-21swapper/022:00:120
30224992928,0cyclictest0-21swapper/123:19:261
30225992514,5cyclictest3989-21H222:10:212
3022599244,2cyclictest4738-21sort22:10:172
3022599243,1cyclictest0-21swapper/220:56:212
3022599240,2cyclictest9397-21gpgv19:30:022
3022399242,18cyclictest0-21swapper/000:15:010
3022599231,1cyclictest237402chrt23:41:082
30225992212,5cyclictest26513-21python321:55:012
3022599220,21cyclictest26028-21munin-run19:59:592
3022599220,16cyclictest6433-21munin-run00:09:592
3022599220,16cyclictest4551-21awk20:15:202
3022399220,18cyclictest0-21swapper/021:15:000
30225992114,6cyclictest30616-21grep19:10:102
30225992114,6cyclictest21599-21fschecks_count21:45:142
30225992114,6cyclictest17025-21ls20:40:202
30225992114,6cyclictest0-21swapper/223:09:002
30225992114,6cyclictest0-21swapper/200:25:122
30225992113,7cyclictest11070-21cut00:15:192
3022599211,15cyclictest0-21swapper/220:52:052
3022599210,3cyclictest1351-21lxd21:06:502
3022599210,2cyclictest10338-21expr19:30:122
3022599210,20cyclictest0-21swapper/221:55:172
3022599210,20cyclictest0-21swapper/221:25:002
3022599210,1cyclictest26747-21missed_timers22:50:162
3022599210,1cyclictest0-21swapper/223:00:212
3022599210,1cyclictest0-21swapper/222:50:012
3022599210,1cyclictest0-21swapper/222:40:212
3022599210,1cyclictest0-21swapper/220:05:162
3022599210,19cyclictest0-21swapper/219:45:152
3022599210,16cyclictest9963-21chrt23:16:572
3022599210,16cyclictest1715-21/usr/sbin/munin20:10:222
3022599210,16cyclictest15666-21cpuspeed_turbos19:40:142
3022599210,15cyclictest279822chrt21:00:102
3022599210,15cyclictest0-21swapper/220:35:002
3022599210,15cyclictest0-21swapper/220:00:172
30224992112,5cyclictest0-21swapper/123:05:131
30225992014,5cyclictest15459-21chrt23:26:572
30225992014,5cyclictest15340-21/usr/sbin/munin21:35:112
30225992014,5cyclictest13195-21latency_hist23:25:012
30225992014,5cyclictest0-21swapper/222:05:132
30225992014,5cyclictest0-21swapper/221:40:142
30225992014,5cyclictest0-21swapper/219:37:212
30225992013,6cyclictest14346-21df20:35:142
30225992013,6cyclictest0-21swapper/223:55:152
30225992013,6cyclictest0-21swapper/221:10:172
30225992012,7cyclictest17517-21grep22:35:122
3022599200,2cyclictest20912-21chrt23:37:082
3022599200,1cyclictest0-21swapper/221:15:172
3022599200,1cyclictest0-21swapper/219:23:512
3022599200,19cyclictest0-21swapper/222:35:002
3022599200,19cyclictest0-21swapper/221:20:142
3022599200,19cyclictest0-21swapper/220:21:452
3022599200,19cyclictest0-21swapper/219:15:202
3022599200,19cyclictest0-21swapper/200:00:352
3022599200,18cyclictest0-21swapper/220:45:022
3022599200,16cyclictest29943-21cp23:55:002
3022599200,15cyclictest30798-21python322:59:592
3022599200,15cyclictest12102-21cat22:25:142
3022599200,15cyclictest0-21swapper/223:30:132
3022599200,15cyclictest0-21swapper/221:30:242
3022599200,14cyclictest0-21swapper/222:20:122
3022599200,14cyclictest0-21swapper/200:20:122
3022499202,17cyclictest0-21swapper/121:05:141
30224992017,1cyclictest0-21swapper/119:53:171
30224992016,3cyclictest0-21swapper/123:53:111
3022499200,5cyclictest6505-21nfsd423:10:181
30225991915,3cyclictest0-21swapper/222:00:122
30225991914,4cyclictest0-21swapper/222:16:142
30225991913,5cyclictest0-21swapper/200:30:382
30225991912,6cyclictest1320-21nsca20:25:202
3022599190,1cyclictest0-21swapper/219:50:122
3022599190,15cyclictest21594-21missed_timers00:35:162
3022599190,15cyclictest0-21swapper/223:45:202
3022599190,0cyclictest0-21swapper/223:10:122
3022499194,1cyclictest0-21swapper/120:40:231
3022499192,16cyclictest8011-21expr19:25:171
3022499192,16cyclictest19152-21if_lxdbr021:40:181
30224991917,1cyclictest0-21swapper/121:40:021
30224991917,1cyclictest0-21swapper/119:44:031
30224991916,2cyclictest26719-21expr20:00:141
30224991915,3cyclictest0-21swapper/123:32:301
30224991915,3cyclictest0-21swapper/119:55:341
30224991914,4cyclictest7080-21ps20:20:201
30224991914,2cyclictest3991-21H222:10:211
30224991914,1cyclictest0-21swapper/100:15:131
30224991912,6cyclictest15216-21latency_hist19:40:011
3022499182,1cyclictest93032chrt21:22:511
3022499182,15cyclictest21-21ksoftirqd/122:50:541
30224991816,1cyclictest23738-21if_enp1s022:45:151
30224991815,2cyclictest7719-21if_lxdbr000:10:141
30224991815,2cyclictest30577-21expr22:00:131
30224991815,2cyclictest20286-21latency_hist00:35:011
30224991814,3cyclictest0-21swapper/122:30:171
30224991814,2cyclictest19729-21sed20:45:021
3022499181,2cyclictest5928-21sh22:15:001
3022499181,16cyclictest31554-21cat19:10:131
3022499180,2cyclictest3976-21H222:10:211
3022499180,17cyclictest24183-21cat23:45:011
3022499180,17cyclictest22782-21cron00:39:001
3022499180,17cyclictest0-21swapper/123:45:141
30223991816,1cyclictest3979-21H222:10:210
30223991816,1cyclictest0-21swapper/020:54:350
30223991815,2cyclictest4799-21date23:09:590
30223991813,4cyclictest31999-21nfsd421:05:180
30223991813,4cyclictest19256-21gpgv20:45:000
3022399181,2cyclictest16714-21uname19:40:180
30223991812,3cyclictest0-21swapper/021:52:570
30224991714,2cyclictest9798-21cut22:20:141
30224991714,2cyclictest5655-21mailstats19:20:221
30224991714,2cyclictest4197-21grep20:15:181
30224991714,2cyclictest399-20systemd-journal00:03:321
30224991714,2cyclictest32308-21grep20:10:131
30224991714,2cyclictest31555-21grep23:00:121
30224991714,2cyclictest28848-21cstates22:55:131
30224991714,2cyclictest21794-21systemctl22:40:191
30224991714,2cyclictest19741-21cat22:39:551
30224991714,2cyclictest1267-21ls19:15:131
30224991714,2cyclictest10934-21cstates23:20:121
30224991714,2cyclictest0-21swapper/120:08:281
30224991713,3cyclictest0-21swapper/120:25:051
3022499171,15cyclictest0-21swapper/121:55:011
3022499171,15cyclictest0-21swapper/120:50:121
3022499170,2cyclictest4688-21cstates21:15:141
3022499170,2cyclictest4090-21cstates00:05:141
3022499170,2cyclictest14495-21snapd20:35:051
3022499170,2cyclictest13487-21cpuspeed_turbos23:25:131
3022499170,2cyclictest11772-21idleruntime20:30:151
3022499170,16cyclictest9645-21apt-key19:30:021
3022499170,16cyclictest7726-21ntpq22:15:171
3022499170,16cyclictest637-21cstates22:05:121
3022499170,16cyclictest24569-21expr21:50:131
3022499170,16cyclictest21100-21grep21:45:121
3022499170,16cyclictest19398-21cstates23:35:131
3022499170,16cyclictest18311-21grep19:45:131
3022499170,16cyclictest13886-21awk21:30:231
3022499170,16cyclictest10419-21expr21:25:121
3022399172,1cyclictest0-21swapper/021:15:090
30223991714,2cyclictest9894-21apache_accesses21:25:100
30223991714,2cyclictest7834-21grep21:20:150
30223991714,2cyclictest4342-21hddtemp_smartct22:10:140
30223991714,2cyclictest4035-21H222:10:210
30223991714,2cyclictest3978-21H222:10:210
30223991714,2cyclictest29577-21python323:55:000
30223991714,2cyclictest2858-21rs:main0
30223991714,2cyclictest16927-21systemctl21:35:230
30223991714,2cyclictest1114-21lldpd19:21:060
30223991714,2cyclictest10650-21apache_processe23:20:100
30223991714,1cyclictest0-21swapper/000:20:300
30223991713,4cyclictest0-21swapper/000:00:240
30223991713,3cyclictest9139-21python319:30:020
30223991713,3cyclictest455-21plymouthd20:20:010
30223991712,1cyclictest0-21swapper/023:38:220
3022399171,1cyclictest0-21swapper/022:55:200
3022399170,2cyclictest4035-21H222:10:210
3022399170,2cyclictest3991-21H222:10:210
3022399170,2cyclictest3450-21gsd-color20:25:130
3022399170,2cyclictest3141-21cron19:17:010
3022399170,2cyclictest20509-21apache_volume00:35:120
3022399170,2cyclictest11429-21cat00:15:200
3022399170,1cyclictest0-21swapper/019:35:470
3022399170,16cyclictest7638-21chrt20:22:040
3022399170,16cyclictest3987-21H222:10:210
3022399170,16cyclictest29899-21hddtemp_smartct20:05:160
3022399170,16cyclictest26835-21grep20:55:200
3022399170,16cyclictest23316-21basename19:55:010
3022399170,16cyclictest22603-21sensors21:45:210
3022399170,16cyclictest21012-21if_enp1s022:40:150
3022399170,16cyclictest15831-21sed23:30:000
3022399170,16cyclictest0-21swapper/000:34:590
30224991614,1cyclictest0-21swapper/121:10:131
30224991613,2cyclictest11859-21grep22:25:141
3022499160,15cyclictest0-21swapper/121:00:151
30223991614,1cyclictest0-21swapper/023:40:130
30223991614,1cyclictest0-21swapper/023:16:540
30223991614,1cyclictest0-21swapper/022:50:110
30223991614,1cyclictest0-21swapper/022:30:170
30223991614,1cyclictest0-21swapper/022:15:210
30223991614,1cyclictest0-21swapper/021:55:170
30223991614,1cyclictest0-21swapper/021:40:150
30223991614,1cyclictest0-21swapper/021:00:190
30223991614,1cyclictest0-21swapper/019:45:130
30223991614,1cyclictest0-21swapper/019:30:190
30223991613,2cyclictest3991-21H222:10:210
30223991613,2cyclictest3985-21H222:10:210
30223991613,2cyclictest23660-21http_loadtime22:45:140
30223991613,2cyclictest1829-21systemd-journal20:10:140
30223991613,2cyclictest14550-21snapd23:00:060
3022399160,2cyclictest9143-21cpu22:20:120
3022399160,2cyclictest26852-21cat20:00:150
3022399160,2cyclictest18835-21pzem_voltage22:35:200
3022399160,1cyclictest0-21swapper/023:46:220
3022399160,15cyclictest0-21swapper/020:30:140
3022399160,15cyclictest0-21swapper/019:56:170
30223991513,1cyclictest0-21swapper/023:30:130
30223991513,1cyclictest0-21swapper/023:10:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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