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2026-08-07 - 18:46
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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 376 highest latencies:
System rackdslot0.osadl.org (updated Fri Aug 07, 2026 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1177699230,5cyclictest0-21swapper/212:32:472
1176799236,14cyclictest0-21swapper/009:30:510
1176799236,14cyclictest0-21swapper/009:30:510
1177699225,8cyclictest0-21swapper/207:55:402
1177699210,17cyclictest0-21swapper/211:55:172
1176799210,20cyclictest843-21systemd-network10:08:230
1177699200,19cyclictest843-21systemd-network09:13:152
11771992018,1cyclictest21-21ksoftirqd/110:22:221
1177199200,19cyclictest843-21systemd-network08:27:271
1177199200,19cyclictest3989-21H222:10:211
11767992017,2cyclictest11436-21idleruntime10:55:150
11767992012,4cyclictest0-21swapper/010:11:070
1177699192,2cyclictest3979-21H222:10:212
11776991917,1cyclictest28-21ksoftirqd/208:47:472
11776991917,1cyclictest28-21ksoftirqd/207:11:232
1177699190,2cyclictest3991-21H222:10:212
1177699190,2cyclictest3989-21H222:10:212
1177699190,18cyclictest3989-21H222:10:212
1177699190,17cyclictest6581-21nfsd410:45:172
1177699190,16cyclictest4035-21H222:10:212
1177699190,16cyclictest4035-21H222:10:212
1177699190,16cyclictest3991-21H222:10:212
1177699190,16cyclictest3989-21H222:10:212
1177699190,16cyclictest3989-21H222:10:212
1177699190,16cyclictest3983-21H222:10:212
1177199193,15cyclictest21-21ksoftirqd/111:50:341
1177199192,2cyclictest14390-21latency11:00:171
11771991916,2cyclictest3981-21H222:10:211
11771991914,2cyclictest0-21swapper/111:05:141
1177199191,2cyclictest3987-21H222:10:211
1177199190,3cyclictest32662-21nfsd408:40:161
1177199190,2cyclictest3979-21H222:10:211
1177199190,16cyclictest4035-21H222:10:211
1177199190,16cyclictest3983-21H222:10:211
1176799192,15cyclictest4035-21H222:10:210
1176799191,15cyclictest23055-21needreboot09:20:160
1176799190,2cyclictest3987-21H222:10:210
1176799190,16cyclictest4035-21H222:10:210
1177699182,15cyclictest205942sleep212:10:002
11776991816,1cyclictest28-21ksoftirqd/210:41:122
11776991816,1cyclictest0-21swapper/211:15:132
11776991816,1cyclictest0-21swapper/211:15:132
11776991814,3cyclictest4099-21H222:10:212
11776991814,3cyclictest3991-21H222:10:212
11776991814,3cyclictest3981-21H222:10:212
11776991814,3cyclictest3976-21H222:10:212
1177699181,16cyclictest3145-21apache208:25:002
1177699180,2cyclictest3989-21H222:10:212
1177699180,2cyclictest3989-21H222:10:212
1177699180,2cyclictest3987-21H222:10:212
1177699180,2cyclictest3981-21H222:10:212
1177699180,17cyclictest4035-21H222:10:212
1177699180,17cyclictest3991-21H222:10:212
1177699180,17cyclictest3976-21H222:10:212
1177699180,17cyclictest1416-21basename08:45:002
1177699180,16cyclictest4099-21H222:10:212
1177699180,16cyclictest3989-21H222:10:212
1177699180,16cyclictest3976-21H222:10:212
1177699180,15cyclictest3989-21H222:10:212
1177199182,15cyclictest21-21ksoftirqd/111:41:211
11771991816,1cyclictest0-21swapper/111:58:281
11771991815,2cyclictest21877-21nfsd410:15:201
11771991814,3cyclictest3989-21H222:10:211
11771991814,3cyclictest3989-21H222:10:211
11771991814,3cyclictest3981-21H222:10:211
1177199180,3cyclictest1516-21lxd10:42:431
1177199180,2cyclictest4099-21H222:10:211
1177199180,2cyclictest3985-21H222:10:211
1177199180,17cyclictest4099-21H222:10:211
1177199180,17cyclictest4099-21H222:10:211
1177199180,17cyclictest3987-21H222:10:211
1177199180,17cyclictest3983-21H222:10:211
1177199180,17cyclictest3981-21H222:10:211
1177199180,17cyclictest3976-21H222:10:211
1177199180,17cyclictest3976-21H222:10:211
1177199180,17cyclictest21852-21/usr/sbin/munin09:20:131
1177199180,16cyclictest3983-21H222:10:211
1177199180,16cyclictest12248-21cpuspeed_turbos07:10:121
1177199180,15cyclictest4099-21H222:10:211
1177199180,15cyclictest3979-21H222:10:211
1176799183,1cyclictest29860-21grep12:25:150
1176799182,15cyclictest0-21swapper/012:22:270
11767991817,1cyclictest9-21ksoftirqd/008:15:380
11767991815,2cyclictest6593-21cat08:50:200
11767991815,2cyclictest15186-21cat11:00:210
11767991813,2cyclictest3991-21H222:10:210
11767991813,2cyclictest3989-21H222:10:210
1176799181,16cyclictest32113-21cut12:30:140
1176799180,3cyclictest3983-21H222:10:210
1176799180,3cyclictest3976-21H222:10:210
1176799180,2cyclictest4035-21H222:10:210
1176799180,2cyclictest3989-21H222:10:210
1176799180,2cyclictest3985-21H222:10:210
1176799180,2cyclictest3983-21H222:10:210
1176799180,2cyclictest3981-21H222:10:210
1176799180,2cyclictest3981-21H222:10:210
1176799180,17cyclictest4099-21H222:10:210
1176799180,17cyclictest4099-21H222:10:210
1176799180,17cyclictest3989-21H222:10:210
1176799180,17cyclictest3981-21H222:10:210
1176799180,17cyclictest3981-21H222:10:210
1176799180,17cyclictest21456-21python311:15:000
1176799180,17cyclictest0-21swapper/007:10:220
1176799180,16cyclictest3985-21H222:10:210
1176799180,16cyclictest3981-21H222:10:210
1176799180,15cyclictest4035-21H222:10:210
1176799180,15cyclictest3985-21H222:10:210
11776991716,1cyclictest28-21ksoftirqd/212:25:282
11776991714,2cyclictest4099-21H222:10:212
11776991714,2cyclictest3979-21H222:10:212
11776991714,2cyclictest3979-21H222:10:212
11776991714,2cyclictest3979-21H222:10:212
11776991714,2cyclictest21901-21nfsd407:25:182
11776991714,2cyclictest13313-21expr09:05:122
11776991714,2cyclictest13313-21expr09:05:122
11776991713,3cyclictest3987-21H222:10:212
1177699170,2cyclictest3983-21H222:10:212
1177699170,2cyclictest29642-21nfsd408:35:202
1177699170,2cyclictest17369-21anvil12:03:492
1177699170,2cyclictest11607-21kernelversion10:55:152
1177699170,1cyclictest3981-21H222:10:212
1177699170,16cyclictest4035-21H222:10:212
1177699170,16cyclictest4035-21H222:10:212
1177699170,16cyclictest3991-21H222:10:212
1177699170,16cyclictest3991-21H222:10:212
1177699170,16cyclictest3989-21H222:10:212
1177699170,16cyclictest3989-21H222:10:212
1177699170,16cyclictest3987-21H222:10:212
1177699170,16cyclictest3983-21H222:10:212
1177699170,16cyclictest3981-21H222:10:212
1177699170,16cyclictest3978-21H222:10:212
1177699170,16cyclictest3976-21H222:10:212
1177699170,16cyclictest3976-21H222:10:212
1177699170,16cyclictest30368-21kernelversion07:40:162
1177699170,16cyclictest27921-21smartctl12:20:202
1177699170,16cyclictest19486-21pzem_energy07:20:212
1177699170,16cyclictest14834-21expr08:10:142
1177699170,16cyclictest0-21swapper/207:36:222
1177199172,1cyclictest0-21swapper/109:30:121
1177199172,1cyclictest0-21swapper/109:30:111
11771991714,2cyclictest5261-21apache_volume10:45:111
11771991714,2cyclictest3981-21H222:10:211
11771991714,2cyclictest30412-21apache_accesses11:30:121
11771991714,2cyclictest28440-21users12:20:231
11771991714,2cyclictest26175-21nfsd411:20:181
11771991714,2cyclictest22206-21apache_accesses11:15:111
11771991714,2cyclictest22206-21apache_accesses11:15:111
11771991714,2cyclictest20615-21/usr/sbin/munin11:10:191
11771991714,2cyclictest12993-21fschecks_time10:00:151
1177199171,1cyclictest7449-21fschecks_time11:45:151
1177199171,15cyclictest6497-21switchtime08:50:211
1177199171,15cyclictest4099-21H222:10:211
1177199171,15cyclictest0-21swapper/108:00:301
1177199170,2cyclictest8844-21chrt09:51:111
1177199170,2cyclictest4035-21H222:10:211
1177199170,2cyclictest3991-21H222:10:211
1177199170,2cyclictest3989-21H222:10:211
1177199170,2cyclictest3983-21H222:10:211
1177199170,2cyclictest28902-21expr08:35:161
1177199170,2cyclictest1521-21lxd07:52:431
1177199170,2cyclictest10697-21apache_processe10:55:111
1177199170,1cyclictest3987-21H222:10:211
1177199170,1cyclictest3987-21H222:10:211
1177199170,16cyclictest4099-21H222:10:211
1177199170,16cyclictest3983-21H222:10:211
1177199170,16cyclictest32161-21cut12:30:141
1177199170,16cyclictest31601-21apache_processe10:35:121
1177199170,16cyclictest30201-21cmp09:35:011
1177199170,16cyclictest20746-21trivial-rewrite09:16:351
1177199170,16cyclictest14505-21snapd09:03:211
1177199170,16cyclictest1023-21ls11:35:131
11767991714,2cyclictest971-21needreboot07:45:170
11767991714,2cyclictest3983-21H222:10:210
11767991714,2cyclictest3976-21H222:10:210
11767991714,2cyclictest30171-21munin-run11:30:000
11767991714,2cyclictest29717-21awk08:35:200
11767991714,2cyclictest22594-21systemctl12:10:200
11767991714,2cyclictest19490-21pzem_power07:20:210
11767991713,3cyclictest0-21swapper/009:25:130
11767991712,4cyclictest0-21swapper/010:15:250
1176799170,2cyclictest3991-21H222:10:210
1176799170,2cyclictest3985-21H222:10:210
1176799170,2cyclictest3444-21gdbus07:50:010
1176799170,2cyclictest26647-21expr10:25:140
1176799170,2cyclictest2225-21/usr/sbin/munin10:40:150
1176799170,1cyclictest0-21swapper/008:20:050
1176799170,16cyclictest4099-21H222:10:210
1176799170,16cyclictest4099-21H222:10:210
1176799170,16cyclictest4099-21H222:10:210
1176799170,16cyclictest3707-21master07:55:100
1176799170,16cyclictest31678-21grep11:30:190
1176799170,16cyclictest30422-21sed09:35:020
1176799170,16cyclictest2796-21grep08:45:170
1176799170,16cyclictest26431-21expr07:35:140
1176799170,16cyclictest14550-21snapd08:30:210
1176799170,16cyclictest11514-21taskset09:55:270
1176799170,16cyclictest11221-21grep11:50:180
1176799170,15cyclictest3987-21H222:10:210
11776991614,1cyclictest0-21swapper/211:25:142
11771991614,1cyclictest0-21swapper/109:45:221
11771991613,2cyclictest14504-21snapd08:10:011
1177199160,15cyclictest18035-21/usr/sbin/munin08:15:171
1177199160,15cyclictest15998-21apt-get09:10:131
11767991614,1cyclictest0-21swapper/008:40:150
11767991614,1cyclictest0-21swapper/007:15:010
11767991613,2cyclictest0-21swapper/012:05:040
1176799160,2cyclictest16023-21grep12:00:140
1176799160,1cyclictest0-21swapper/008:05:220
1176799160,15cyclictest9387-21awk10:50:180
1176799160,15cyclictest9387-21awk10:50:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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