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2026-06-08 - 20:37
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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 Jun 08, 2026 12:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15812993029,0cyclictest0-21swapper/110:59:501
15812992414,10cyclictest27468-21kworker/1:011:37:321
15812992315,4cyclictest5671-21dpkg10:40:001
15811992319,3cyclictest880-21rs:main0
1581199230,5cyclictest0-21swapper/011:15:430
15812992211,10cyclictest0-21swapper/111:34:221
15811992214,7cyclictest23938-21latency_hist12:10:010
1581199221,16cyclictest23426-21seq10:14:030
1581199220,4cyclictest0-21swapper/012:17:410
1581199220,2cyclictest7301-21ls10:40:180
1581199220,2cyclictest7301-21ls10:40:170
1581199220,2cyclictest2007-21systemd-journal10:17:310
1581199220,2cyclictest2007-21systemd-journal10:17:300
1581199220,21cyclictest29169-21if_lxdbr009:25:160
1581199220,1cyclictest0-21swapper/009:55:230
1581199220,16cyclictest9063-21wc11:40:250
1581199220,16cyclictest25403-21latency_hist09:20:000
15811992115,5cyclictest17855-21cat08:10:010
15811992114,6cyclictest9963-21latency08:50:180
15811992114,6cyclictest9445-21expr10:45:130
1581199211,19cyclictest0-21swapper/009:22:580
1581199210,20cyclictest30614-21if_err_eno107:35:160
1581199210,20cyclictest21436-21munin-run07:20:010
1581199210,1cyclictest0-21swapper/011:40:000
1581199210,1cyclictest0-21swapper/009:05:190
1581199210,1cyclictest0-21swapper/008:56:310
1581199210,1cyclictest0-21swapper/008:56:300
1581199210,1cyclictest0-21swapper/008:35:210
1581199210,1cyclictest0-21swapper/008:00:020
1581199210,16cyclictest3979-21H222:10:210
1581199210,15cyclictest6480-21expr12:35:130
1581199210,15cyclictest550-21expr07:40:140
1581199210,15cyclictest25032-21hddtemp_smartct07:25:170
1581199210,15cyclictest0-21swapper/012:00:190
1581399203,2cyclictest13650-21nfsd408:00:162
15813992020,0cyclictest0-21swapper/208:30:142
15813992017,2cyclictest1-21systemd12:00:012
15813992016,3cyclictest0-21swapper/210:25:182
15813992014,5cyclictest0-21swapper/211:20:202
15813992013,4cyclictest6877-21cron11:40:012
15811992015,4cyclictest0-21swapper/007:55:180
15811992014,5cyclictest4637-21/usr/sbin/munin09:40:100
15811992014,5cyclictest3303-21fschecks_count10:35:150
15811992014,5cyclictest0-21swapper/011:58:140
15811992014,5cyclictest0-21swapper/011:47:250
15811992014,5cyclictest0-21swapper/011:00:200
15811992014,5cyclictest0-21swapper/009:50:120
15811992014,5cyclictest0-21swapper/009:00:150
15811992014,5cyclictest0-21swapper/008:40:140
15811992012,7cyclictest32458-21processes11:25:170
1581199200,2cyclictest24138-21expr08:20:140
1581199200,2cyclictest16541-21expr07:10:150
1581199200,2cyclictest16541-21expr07:10:140
1581199200,1cyclictest0-21swapper/011:20:230
1581199200,1cyclictest0-21swapper/010:34:210
1581199200,1cyclictest0-21swapper/008:45:140
1581199200,1cyclictest0-21swapper/007:45:190
1581199200,19cyclictest24309-21egrep12:10:120
1581199200,19cyclictest0-21swapper/012:30:130
1581199200,19cyclictest0-21swapper/011:10:120
1581199200,19cyclictest0-21swapper/009:45:150
1581199200,16cyclictest14174-21ntpq11:50:170
1581199200,15cyclictest30487-21which12:20:160
1581199200,15cyclictest30456-21missed_timers08:30:160
1581199200,15cyclictest29951-21cat10:25:140
1581199200,14cyclictest0-21swapper/010:20:120
1581199200,0cyclictest0-21swapper/007:30:210
1581399193,15cyclictest0-21swapper/210:45:172
1581399192,16cyclictest19944-21cut09:10:012
1581399192,16cyclictest18087-21smtpd07:10:432
1581399192,16cyclictest18087-21smtpd07:10:432
15813991917,1cyclictest0-21swapper/210:16:182
15813991917,1cyclictest0-21swapper/210:16:172
15813991916,2cyclictest5388-21seq08:44:412
15813991915,3cyclictest0-21swapper/207:37:202
1581399190,3cyclictest0-21swapper/211:00:212
1581299193,15cyclictest0-21swapper/109:01:291
15811991914,4cyclictest0-21swapper/010:55:180
1581199190,1cyclictest4035-21H222:10:210
1581199190,1cyclictest4035-21H222:10:210
1581199190,1cyclictest0-21swapper/010:10:000
1581199190,1cyclictest0-21swapper/009:30:120
1581199190,1cyclictest0-21swapper/007:24:230
1581199190,18cyclictest0-21swapper/008:15:190
1581199190,15cyclictest3979-21H222:10:210
1581199190,0cyclictest0-21swapper/007:55:000
15813991816,1cyclictest0-21swapper/207:42:152
15813991815,2cyclictest3987-21H222:10:212
15813991815,2cyclictest1615-21grep11:30:122
15813991815,2cyclictest13637-21if_enp1s009:55:172
15813991814,3cyclictest3989-21H222:10:212
1581399180,2cyclictest18569-21tr10:05:142
1581299183,14cyclictest21-21ksoftirqd/108:25:101
15812991815,2cyclictest3053-21systemd-logind11:10:521
15812991814,3cyclictest3985-21H222:10:211
15812991814,3cyclictest0-21swapper/112:35:051
15812991814,3cyclictest0-21swapper/110:20:131
15812991814,2cyclictest8207-21python308:50:001
15811991813,4cyclictest0-21swapper/011:30:180
15811991812,5cyclictest0-21swapper/010:50:130
1581199180,17cyclictest0-21swapper/010:00:110
15813991715,1cyclictest0-21swapper/211:27:282
15813991714,2cyclictest7359-21/usr/sbin/munin09:45:142
15813991714,2cyclictest5942-21/usr/sbin/munin12:35:152
15813991714,2cyclictest455-21plymouthd10:10:172
15813991714,2cyclictest31289-21pzem_current12:20:212
15813991714,2cyclictest29803-21pzem_current09:25:202
15813991714,2cyclictest2955-21cat10:35:152
15813991714,2cyclictest22317-21cron11:10:002
15813991714,2cyclictest21581-21/usr/sbin/munin07:20:122
15813991714,2cyclictest17202-21switchtime11:55:222
15813991714,2cyclictest15937-21expr10:00:122
15813991714,2cyclictest14086-21cut09:00:012
15813991714,2cyclictest14086-21cut09:00:002
1581399170,3cyclictest0-21swapper/210:40:172
1581399170,3cyclictest0-21swapper/210:40:172
1581399170,2cyclictest6136-21cron07:50:012
1581399170,2cyclictest5287-21fschecks_count09:40:132
1581399170,2cyclictest26452-21chrt12:13:142
1581399170,2cyclictest25826-21expr11:15:122
1581399170,2cyclictest16454-21postgres09:00:552
1581399170,2cyclictest15207-21if_enp1s010:55:162
1581399170,2cyclictest13699-21kernelversion11:50:152
1581399170,2cyclictest10524-21expr09:50:122
1581399170,16cyclictest4035-21H222:10:212
1581399170,16cyclictest32140-21apache_processe10:30:112
1581399170,16cyclictest28862-21sort12:15:222
1581399170,16cyclictest25301-21threads08:20:212
1581399170,16cyclictest24736-21expr07:25:152
1581399170,16cyclictest21249-21cat08:15:132
1581399170,16cyclictest20414-21cat11:05:142
1581399170,16cyclictest18065-21/usr/sbin/munin08:10:172
1581399170,16cyclictest1758-21expr09:35:142
1581399170,16cyclictest15862-21fschecks_time08:05:162
1581299172,1cyclictest21-21ksoftirqd/107:57:111
1581299172,15cyclictest21-21ksoftirqd/112:34:341
15812991715,1cyclictest0-21swapper/107:50:081
15812991714,2cyclictest627-21expr07:40:151
15812991714,2cyclictest29498-21nfsd409:25:181
15812991714,2cyclictest28234-21apache_accesses11:20:121
15812991714,2cyclictest24463-21cpuspeed_turbos12:10:121
15812991714,2cyclictest24149-21awk09:15:181
15812991714,2cyclictest19043-21cat08:10:161
15812991714,2cyclictest16905-21ntp_kernel_pll_11:55:181
15812991714,2cyclictest1035-21thermald10:45:191
15812991714,2cyclictest1035-21thermald09:35:221
15812991714,2cyclictest0-21swapper/107:10:191
15812991714,2cyclictest0-21swapper/107:10:181
15812991713,3cyclictest25708-21grep11:15:121
15812991713,3cyclictest0-21swapper/111:10:011
1581299171,15cyclictest0-21swapper/109:50:111
1581299170,2cyclictest9722-21basename08:50:171
1581299170,2cyclictest7411-21nfsd410:40:181
1581299170,2cyclictest7411-21nfsd410:40:171
1581299170,2cyclictest3981-21H222:10:211
1581299170,2cyclictest3979-21H222:10:211
1581299170,2cyclictest3414-21master11:03:561
1581299170,2cyclictest30144-21expr12:20:161
1581299170,2cyclictest23458-21chrt10:14:291
1581299170,2cyclictest1521-21lxd09:10:421
1581299170,16cyclictest993-21dbus-daemon12:25:201
1581299170,16cyclictest993-21dbus-daemon12:25:201
1581299170,16cyclictest3987-21H222:10:211
1581299170,16cyclictest31164-21ntp_offset07:35:181
1581299170,16cyclictest3053-21systemd-logind09:34:511
1581299170,16cyclictest18429-21grep09:05:181
1581299170,16cyclictest14003-21grep09:55:181
1581299170,16cyclictest13003-21awk10:50:181
1581299170,16cyclictest11268-21nfsd411:45:181
1581299170,16cyclictest1079-21cups-browsed09:40:191
1581299170,16cyclictest0-21swapper/108:30:181
15813991614,1cyclictest32671-21cpuspeed_turbos12:25:132
15813991614,1cyclictest32671-21cpuspeed_turbos12:25:132
15813991614,1cyclictest0-21swapper/210:50:162
15813991614,1cyclictest0-21swapper/209:20:162
15813991614,1cyclictest0-21swapper/208:50:122
15813991614,1cyclictest0-21swapper/208:45:172
15813991614,1cyclictest0-21swapper/207:55:152
15813991614,1cyclictest0-21swapper/207:30:182
1581399160,1cyclictest19022-21cpuspeed_turbos07:15:132
1581399160,1cyclictest0-21swapper/209:30:122
1581399160,1cyclictest0-21swapper/209:15:192
1581399160,15cyclictest9036-21switchtime11:40:242
1581399160,15cyclictest27839-21needreboot10:20:162
1581399160,15cyclictest0-21swapper/212:30:122
1581399160,15cyclictest0-21swapper/208:25:142
1581399160,15cyclictest0-21swapper/207:50:172
15812991614,1cyclictest0-21swapper/109:45:101
15812991614,1cyclictest0-21swapper/108:41:551
15812991614,1cyclictest0-21swapper/108:00:151
15812991613,2cyclictest399-20systemd-journal11:50:011
15812991613,2cyclictest12566-21if_err_lxdbr008:55:161
15812991613,2cyclictest12566-21if_err_lxdbr008:55:161
1581299160,2cyclictest25970-21expr09:20:131
1581299160,2cyclictest23931-21apache_volume10:15:111
1581299160,2cyclictest23931-21apache_volume10:15:111
1581299160,2cyclictest21750-21tr07:20:131
1581299160,1cyclictest3987-21H222:10:211
1581299160,1cyclictest0-21swapper/108:05:131
1581299160,15cyclictest32637-21ls11:25:201
1581299160,15cyclictest32603-21expr08:35:141
1581299160,15cyclictest32512-21expr10:30:141
1581299160,15cyclictest20270-21vmstat10:05:231
1581299160,15cyclictest19013-21ls12:00:141
1581299160,15cyclictest15607-21grep10:00:121
1581299160,15cyclictest0-21swapper/111:40:181
1581299160,15cyclictest0-21swapper/108:20:121
1581299160,15cyclictest0-21swapper/107:45:101
1581299160,15cyclictest0-21swapper/107:25:151
1581299160,15cyclictest0-21swapper/107:15:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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