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2026-05-06 - 18:19
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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 Wed May 06, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2455099240,19cyclictest0-21swapper/108:25:131
2455099230,22cyclictest843-21systemd-network08:22:111
24549992321,1cyclictest0-21swapper/012:00:130
2454999220,18cyclictest0-21swapper/007:11:540
24549992119,1cyclictest4823-21ntp_kernel_err10:20:170
24549992119,1cyclictest4823-21ntp_kernel_err10:20:170
24551992016,3cyclictest0-21swapper/212:25:002
2455199200,19cyclictest843-21systemd-network10:14:012
2455099200,17cyclictest0-21swapper/109:19:371
24551991916,2cyclictest23512-21grep11:50:162
2455099190,18cyclictest14499-21snapd11:02:571
2454999193,15cyclictest0-21swapper/012:17:560
24549991916,1cyclictest0-21swapper/008:05:200
24549991915,3cyclictest0-21swapper/009:19:040
24549991914,3cyclictest10588-21cat10:30:210
2455199182,15cyclictest3985-21H222:10:212
2455199182,15cyclictest17951-21cut07:55:012
2455199182,15cyclictest0-21swapper/207:29:192
24551991816,1cyclictest28-21ksoftirqd/208:19:352
24551991815,2cyclictest25559-21nfsd410:00:162
2455199181,3cyclictest0-21swapper/208:25:562
24551991813,4cyclictest399-20systemd-journal11:15:002
2455199181,2cyclictest7096-21kernelversion10:25:142
2455199181,16cyclictest993-21dbus-daemon11:20:212
2455199181,16cyclictest3991-21H222:10:212
2455199181,16cyclictest3985-21H222:10:212
2455199180,16cyclictest1381-21nvmesmart_nvme008:20:192
2455099189,5cyclictest0-21swapper/108:50:181
2455099182,15cyclictest29934-21needreboot09:10:171
24550991815,2cyclictest13176-21turbostat11:35:001
24550991814,3cyclictest3979-21H222:10:211
2455099181,16cyclictest18755-21http_loadtime07:55:141
24549991815,2cyclictest4099-21H222:10:210
24549991815,2cyclictest31063-21expr07:20:140
24549991813,1cyclictest0-21swapper/009:35:210
2454999181,2cyclictest13005-21chrt11:33:160
2454999180,3cyclictest2527-21ntpq07:25:180
2454999180,2cyclictest676-21python312:10:010
2455199177,6cyclictest11220-21munin-run10:35:012
24551991716,0cyclictest0-21swapper/209:25:212
24551991715,1cyclictest0-21swapper/211:32:412
24551991714,2cyclictest29230-21runrttasks10:08:102
24551991714,2cyclictest16400-21awk10:40:212
24551991714,2cyclictest14496-21snapd12:37:572
24551991714,2cyclictest1-21systemd09:34:522
24551991714,1cyclictest0-21swapper/209:37:292
24551991713,3cyclictest1522-21lxd10:24:422
24551991713,3cyclictest1522-21lxd10:24:422
2455199171,15cyclictest0-21swapper/208:42:522
2455199170,3cyclictest0-21swapper/210:53:582
2455199170,2cyclictest3979-21H222:10:212
2455199170,2cyclictest20746-21/usr/sbin/munin08:00:142
2455199170,2cyclictest2007-21systemd-journal09:24:332
2455199170,2cyclictest19661-21switchtime07:55:202
2455199170,2cyclictest1856-21systemd-udevd12:16:512
2455199170,2cyclictest18472-21perf09:50:012
2455199170,2cyclictest1760-21ntp_offset10:15:182
2455199170,2cyclictest13928-21needreboot12:30:162
2455199170,16cyclictest6447-21smtpd07:34:352
2455199170,16cyclictest455-21plymouthd12:25:172
2455199170,16cyclictest3267-21mailstats12:10:192
2455199170,16cyclictest25321-21tr11:55:132
2455199170,16cyclictest2007-21systemd-journal08:14:472
2455199170,16cyclictest2007-21systemd-journal08:14:472
2455199170,16cyclictest19016-21grep10:45:182
2455199170,16cyclictest19016-21grep10:45:182
2455199170,16cyclictest17409-21kernelversion11:40:162
2455199170,16cyclictest15012-21switchtime09:40:202
2455199170,15cyclictest4099-21H222:10:212
24550991715,1cyclictest112952chrt08:37:211
24550991714,2cyclictest9644-21pzem_energy11:25:191
24550991714,2cyclictest8643-21nfsd412:20:171
24550991714,2cyclictest4099-21H222:10:211
24550991714,2cyclictest30729-21apache_accesses07:20:111
24550991714,2cyclictest10216-21expr12:25:121
24550991713,3cyclictest3979-21H222:10:211
2455099171,1cyclictest8185-21cat08:30:211
2455099171,1cyclictest29599-21cpuspeed_turbos08:15:131
2455099171,15cyclictest9724-21latency_hist07:40:011
24550991711,1cyclictest0-21swapper/109:35:181
2455099170,2cyclictest4099-21H222:10:211
2455099170,2cyclictest24408-21cat08:05:131
2455099170,2cyclictest24140-21sed09:00:161
2455099170,2cyclictest22277-21timerwakeupswit10:50:201
2455099170,2cyclictest16548-21nfsd407:50:181
2455099170,2cyclictest0-21swapper/111:40:171
2455099170,1cyclictest3987-21H222:10:211
2455099170,1cyclictest0-21swapper/110:45:401
2455099170,1cyclictest0-21swapper/110:45:401
2455099170,1cyclictest0-21swapper/110:00:151
2455099170,16cyclictest9006-21awk09:30:191
2455099170,16cyclictest7697-21cron11:25:001
2455099170,16cyclictest6403-21chrt07:33:541
2455099170,16cyclictest6279-21sort12:15:201
2455099170,16cyclictest5601-21lxd11:52:421
2455099170,16cyclictest4287-21grep12:15:001
2455099170,16cyclictest3996-21tr11:15:171
2455099170,16cyclictest3981-21H222:10:211
2455099170,16cyclictest31548-21ls12:05:161
2455099170,16cyclictest31497-21pzem_voltage10:10:191
2455099170,16cyclictest29442-21sessionclean10:09:011
2455099170,16cyclictest28020-21nfsd408:10:161
2455099170,16cyclictest28020-21nfsd408:10:161
2455099170,16cyclictest27119-21nfsd409:05:171
2455099170,16cyclictest25432-21cron11:00:001
2455099170,16cyclictest2022-21sed11:15:001
2455099170,16cyclictest14926-21awk11:35:181
2454999172,9cyclictest5775-21munin-plugin-st08:30:010
24549991715,1cyclictest9-21ksoftirqd/007:50:320
24549991715,1cyclictest3260-21if_enp1s011:15:150
24549991715,1cyclictest0-21swapper/010:10:200
24549991714,2cyclictest9442-21expr11:25:160
24549991714,2cyclictest333-21expr08:20:140
24549991714,2cyclictest30932-21cron11:09:000
24549991714,2cyclictest24612-21expr10:00:120
24549991714,2cyclictest1274-21runrttasks10:55:350
24549991714,2cyclictest10548-21cut07:40:150
24549991714,2cyclictest10116-21uname08:35:170
24549991712,3cyclictest0-21swapper/011:45:130
2454999171,15cyclictest0-21swapper/009:10:130
2454999170,2cyclictest455-21plymouthd09:05:170
2454999170,2cyclictest21149-21http_loadtime08:55:150
2454999170,2cyclictest20910-21chrt09:51:360
2454999170,2cyclictest17712-21chrt12:38:350
2454999170,2cyclictest14501-21snapd12:20:270
2454999170,2cyclictest14007-21expr11:35:140
2454999170,2cyclictest13866-21awk07:45:170
2454999170,2cyclictest13627-21pzem_energy08:40:190
2454999170,1cyclictest0-21swapper/008:00:020
2454999170,17cyclictest0-21swapper/010:07:320
2454999170,16cyclictest8763-21proxymap08:34:540
2454999170,16cyclictest4685-21expr07:30:140
2454999170,16cyclictest3985-21H222:10:210
2454999170,16cyclictest3219-21latency_hist10:20:000
2454999170,16cyclictest28216-21smartctl08:10:170
2454999170,16cyclictest28216-21smartctl08:10:170
2454999170,16cyclictest25406-21expr11:55:120
2454999170,16cyclictest2422-21if_lxdbr012:10:150
2454999170,16cyclictest20746-21/usr/sbin/munin08:00:110
2454999170,16cyclictest17910-21sed09:45:210
2454999170,16cyclictest17696-21netstat11:40:170
2454999170,16cyclictest15759-21uname08:45:150
24551991614,1cyclictest0-21swapper/212:05:122
24551991614,1cyclictest0-21swapper/211:45:112
24551991614,1cyclictest0-21swapper/210:55:182
24551991614,1cyclictest0-21swapper/209:50:112
24551991614,1cyclictest0-21swapper/209:00:172
24551991614,1cyclictest0-21swapper/208:35:142
24551991614,1cyclictest0-21swapper/207:45:122
24551991612,3cyclictest3991-21H222:10:212
2455199160,2cyclictest28607-21apache_accesses11:05:102
2455199160,2cyclictest27346-21grep11:00:212
2455199160,15cyclictest8730-21fschecks_count11:25:132
2455199160,15cyclictest3980-21H222:10:212
2455199160,15cyclictest30290-21latency_hist07:20:012
2455199160,15cyclictest30036-21nfsd409:10:182
2455199160,15cyclictest14908-21cpuspeed_turbos08:45:122
2455199160,15cyclictest0-21swapper/211:15:152
2455199160,15cyclictest0-21swapper/210:35:142
2455199160,15cyclictest0-21swapper/209:55:212
2455199160,15cyclictest0-21swapper/209:15:112
2455199160,15cyclictest0-21swapper/208:55:202
2455199160,15cyclictest0-21swapper/207:35:182
24550991614,1cyclictest0-21swapper/111:55:161
24550991614,1cyclictest0-21swapper/110:15:181
24550991614,1cyclictest0-21swapper/109:25:121
24550991614,1cyclictest0-21swapper/107:45:131
24550991614,1cyclictest0-21swapper/107:25:121
24550991613,2cyclictest29281-21nfsd407:15:191
24550991613,2cyclictest16423-21ps10:40:211
24550991613,2cyclictest12278-21grep08:40:131
2455099160,1cyclictest0-21swapper/112:00:141
2455099160,1cyclictest0-21swapper/111:05:131
2455099160,1cyclictest0-21swapper/109:40:201
2455099160,1cyclictest0-21swapper/108:45:121
2455099160,15cyclictest6843-21fschecks_time10:25:121
2455099160,15cyclictest16479-21expr09:45:131
2455099160,15cyclictest15647-21cpuspeed_turbos12:35:141
2455099160,15cyclictest0-21swapper/111:45:011
2455099160,15cyclictest0-21swapper/110:35:011
2455099160,15cyclictest0-21swapper/110:30:211
2455099160,15cyclictest0-21swapper/110:20:191
2455099160,15cyclictest0-21swapper/110:20:181
2455099160,15cyclictest0-21swapper/107:40:131
24549991614,1cyclictest0-21swapper/011:00:210
24549991614,1cyclictest0-21swapper/010:25:150
24549991613,2cyclictest22582-21cat09:55:180
24549991613,2cyclictest15176-21expr10:40:140
2454999160,2cyclictest993-21dbus-daemon09:20:190
2454999160,1cyclictest1300-21lxd12:30:420
2454999160,16cyclictest0-21swapper/010:50:120
2454999160,15cyclictest8649-21kernelversion09:30:160
2454999160,15cyclictest6496-21missed_timers11:20:160
2454999160,15cyclictest29821-21expr08:15:140
2454999160,15cyclictest17669-21/usr/sbin/munin10:45:200
2454999160,15cyclictest17669-21/usr/sbin/munin10:45:200
2454999160,15cyclictest13747-21expr09:40:120
2454999160,15cyclictest12161-21cpuspeed_turbos10:35:130
2454999160,15cyclictest11839-21timerandwakeup12:25:200
2454999160,15cyclictest0-21swapper/011:50:120
2454999160,15cyclictest0-21swapper/011:10:030
2454999160,15cyclictest0-21swapper/009:25:070
2454999160,15cyclictest0-21swapper/008:50:150
2454999160,15cyclictest0-21swapper/007:35:170
2455099150,1cyclictest0-21swapper/108:55:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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