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2026-04-23 - 04:18
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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 Thu Apr 23, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14837992414,5cyclictest0-21swapper/220:50:212
1483799240,19cyclictest0-21swapper/221:50:152
14837992119,1cyclictest28258-21date20:30:002
14837992119,1cyclictest0-21swapper/221:40:182
14837992116,4cyclictest0-21swapper/223:00:482
14837992018,1cyclictest28-21ksoftirqd/219:11:072
1483799200,19cyclictest426-21systemd-udevd22:50:512
1483599204,14cyclictest0-21swapper/020:05:380
1483599203,16cyclictest0-21swapper/000:29:130
14835992017,1cyclictest0-21swapper/022:15:190
1483799192,16cyclictest3991-21H222:10:212
14837991916,2cyclictest14753-21tr22:00:132
1483799190,2cyclictest3989-21H222:10:212
1483799190,18cyclictest20600-21cat19:20:012
1483799190,16cyclictest4035-21H222:10:212
1483799190,16cyclictest3981-21H222:10:212
1483699193,15cyclictest21-21ksoftirqd/122:30:131
14836991916,2cyclictest5601-21lxd23:31:291
14836991914,2cyclictest3985-21H222:10:211
1483699190,2cyclictest3983-21H222:10:211
1483699190,16cyclictest4035-21H222:10:211
1483699190,16cyclictest3976-21H222:10:211
1483699190,16cyclictest3976-21H222:10:211
1483699190,16cyclictest3976-21H222:10:211
1483599193,1cyclictest0-21swapper/020:50:500
1483599193,15cyclictest9-21ksoftirqd/022:27:310
1483599190,3cyclictest0-21swapper/019:51:380
1483599190,2cyclictest4099-21H222:10:210
1483599190,2cyclictest3983-21H222:10:210
1483599190,16cyclictest4099-21H222:10:210
1483799182,2cyclictest3985-21H222:10:212
1483799182,15cyclictest4542-21nfsd419:45:172
1483799182,15cyclictest28-21ksoftirqd/200:32:522
1483799182,15cyclictest0-21swapper/220:03:172
14837991816,1cyclictest0-21swapper/222:40:202
14837991816,1cyclictest0-21swapper/220:42:022
14837991815,2cyclictest4147-21chrt22:38:422
14837991814,3cyclictest3987-21H222:10:212
14837991814,3cyclictest3983-21H222:10:212
14837991814,3cyclictest3976-21H222:10:212
1483799181,16cyclictest4035-21H222:10:212
1483799181,16cyclictest2872-21systemd-logind21:26:522
1483799180,3cyclictest426-21systemd-udevd21:12:522
1483799180,3cyclictest3983-21H222:10:212
1483799180,2cyclictest3976-21H222:10:212
1483799180,17cyclictest399-20systemd-journal00:08:152
1483799180,17cyclictest3989-21H222:10:212
1483799180,17cyclictest3985-21H222:10:212
1483799180,17cyclictest3979-21H222:10:212
1483799180,17cyclictest0-21swapper/200:35:482
1483699188,9cyclictest0-21swapper/120:25:401
1483699182,2cyclictest0-21swapper/122:59:421
1483699182,15cyclictest7321-21nfsd419:50:181
1483699182,15cyclictest0-21swapper/123:48:021
14836991817,1cyclictest21-21ksoftirqd/123:11:271
14836991816,1cyclictest0-21swapper/122:15:181
14836991815,2cyclictest8078-21grep23:40:181
14836991815,2cyclictest21893-21smartctl00:05:191
14836991814,3cyclictest3991-21H222:10:211
14836991814,3cyclictest3987-21H222:10:211
1483699181,2cyclictest4099-21H222:10:211
1483699181,16cyclictest3987-21H222:10:211
1483699181,16cyclictest0-21swapper/119:57:151
1483699180,3cyclictest3991-21H222:10:211
1483699180,3cyclictest14495-21snapd22:00:291
1483699180,3cyclictest0-21swapper/119:44:581
1483699180,2cyclictest3989-21H222:10:211
1483699180,2cyclictest3989-21H222:10:211
1483699180,2cyclictest3981-21H222:10:211
1483699180,17cyclictest3989-21H222:10:211
1483699180,17cyclictest0-21swapper/100:21:271
1483699180,15cyclictest3991-21H222:10:211
1483599183,1cyclictest0-21swapper/021:15:150
1483599182,15cyclictest0-21swapper/020:33:500
14835991817,1cyclictest9-21ksoftirqd/021:22:200
14835991816,1cyclictest32299-21missed_timers22:30:170
14835991816,1cyclictest0-21swapper/023:51:230
14835991815,2cyclictest993-21dbus-daemon21:10:210
14835991815,2cyclictest3981-21H222:10:210
14835991815,2cyclictest31746-21seq19:37:000
14835991815,2cyclictest25173-21expr19:25:190
14835991814,3cyclictest3991-21H222:10:210
14835991814,3cyclictest3976-21H222:10:210
14835991814,2cyclictest13308-21cpuspeed_turbos21:00:150
14835991814,2cyclictest13308-21cpuspeed_turbos21:00:140
1483599181,2cyclictest4099-21H222:10:210
1483599181,2cyclictest24863-21chrt00:10:190
1483599181,2cyclictest19749-21smtp22:09:220
1483599181,16cyclictest6876-21nfsd400:35:170
1483599180,2cyclictest3989-21H222:10:210
1483599180,2cyclictest3979-21H222:10:210
1483599180,2cyclictest3976-21H222:10:210
1483599180,17cyclictest14504-21snapd20:03:030
1483599180,15cyclictest4099-21H222:10:210
1483599180,15cyclictest3991-21H222:10:210
1483599180,15cyclictest3989-21H222:10:210
1483599180,15cyclictest3987-21H222:10:210
1483599180,15cyclictest3987-21H222:10:210
1483599180,15cyclictest0-21swapper/021:28:440
14837991715,1cyclictest28-21ksoftirqd/200:15:202
14837991715,1cyclictest0-21swapper/200:25:132
14837991714,2cyclictest3976-21H222:10:212
14837991714,2cyclictest3976-21H222:10:212
14837991714,2cyclictest31507-21timerwakeupswit19:35:212
14837991714,2cyclictest30014-21pzem_energy22:25:202
14837991714,2cyclictest15986-21sed23:55:162
14837991713,3cyclictest3989-21H222:10:212
14837991713,3cyclictest3976-21H222:10:212
1483799170,2cyclictest4099-21H222:10:212
1483799170,2cyclictest3985-21H222:10:212
1483799170,2cyclictest3983-21H222:10:212
1483799170,2cyclictest3976-21H222:10:212
1483799170,2cyclictest22383-21nfsd419:20:172
1483799170,1cyclictest0-21swapper/222:22:302
1483799170,17cyclictest0-21swapper/220:36:142
1483799170,16cyclictest8499-21chrt21:47:162
1483799170,16cyclictest8024-21nfsd423:40:182
1483799170,16cyclictest7476-21nvmesmart_nvme019:50:202
1483799170,16cyclictest455-21plymouthd23:20:112
1483799170,16cyclictest3991-21H222:10:212
1483799170,16cyclictest28470-21/usr/sbin/munin20:30:142
1483799170,16cyclictest2709-21timerwakeupswit23:30:222
1483799170,16cyclictest2007-21systemd-journal22:09:192
1483799170,16cyclictest17405-21dpkg20:10:012
1483799170,16cyclictest0-21swapper/219:28:472
14836991715,1cyclictest0-21swapper/121:38:301
14836991714,2cyclictest4075-21idleruntime19:45:161
14836991714,2cyclictest3985-21H222:10:211
14836991714,2cyclictest14886-21sed21:00:221
14836991714,2cyclictest14886-21sed21:00:221
14836991713,3cyclictest4035-21H222:10:211
1483699170,2cyclictest3991-21H222:10:211
1483699170,2cyclictest3991-21H222:10:211
1483699170,2cyclictest3987-21H222:10:211
1483699170,2cyclictest3985-21H222:10:211
1483699170,2cyclictest3983-21H222:10:211
1483699170,2cyclictest3979-21H222:10:211
1483699170,2cyclictest3976-21H222:10:211
1483699170,2cyclictest30306-21expr21:30:131
1483699170,2cyclictest15939-21cut23:55:151
1483699170,2cyclictest12647-21cat23:50:131
1483699170,16cyclictest843-21systemd-network21:05:261
1483699170,16cyclictest3989-21H222:10:211
1483699170,16cyclictest3985-21H222:10:211
1483699170,16cyclictest3985-21H222:10:211
1483699170,16cyclictest3985-21H222:10:211
1483699170,16cyclictest3979-21H222:10:211
1483699170,16cyclictest3976-21H222:10:211
1483699170,16cyclictest25014-21proxymap20:20:411
1483699170,16cyclictest2069-21systemd-udevd23:00:511
1483699170,16cyclictest19600-21sed00:00:241
1483699170,16cyclictest1085-21gdbus19:10:201
1483699170,15cyclictest0-21swapper/123:20:141
1483699170,14cyclictest111rcu_preempt20:10:161
14835991714,2cyclictest3985-21H222:10:210
14835991714,2cyclictest3979-21H222:10:210
14835991714,2cyclictest3976-21H222:10:210
14835991714,2cyclictest31640-21nfsd423:25:170
14835991714,2cyclictest26064-21expr20:25:130
14835991714,2cyclictest14550-21snapd00:15:270
14835991714,2cyclictest13225-21ntpq21:55:170
1483599170,2cyclictest3989-21H222:10:210
1483599170,2cyclictest3989-21H222:10:210
1483599170,2cyclictest3981-21H222:10:210
1483599170,2cyclictest3979-21H222:10:210
1483599170,2cyclictest3871-21fschecks_count19:45:140
1483599170,2cyclictest27856-21chrt19:30:190
1483599170,2cyclictest27057-21awk22:20:170
1483599170,2cyclictest23523-21switchtime23:10:200
1483599170,2cyclictest20897-21fschecks_count20:15:140
1483599170,2cyclictest16989-21cat19:10:200
1483599170,1cyclictest0-21swapper/021:05:200
1483599170,16cyclictest9670-21cat21:50:130
1483599170,16cyclictest5277-21expr22:40:160
1483599170,16cyclictest5264-21sendmail_mailtr21:40:200
1483599170,16cyclictest3989-21H222:10:210
1483599170,16cyclictest2506-21fschecks_time20:40:150
1483599170,16cyclictest21460-21/usr/sbin/munin00:05:180
1483599170,16cyclictest0-21swapper/000:20:170
14837991614,1cyclictest0-21swapper/222:15:112
14837991614,1cyclictest0-21swapper/222:10:132
14837991614,1cyclictest0-21swapper/220:20:112
14837991614,1cyclictest0-21swapper/200:10:142
1483799160,1cyclictest2913-21chrt21:39:082
1483799160,1cyclictest13224-21ntp_kernel_pll_21:55:182
1483799160,15cyclictest3976-21H222:10:212
14836991614,1cyclictest4099-21H222:10:211
14836991614,1cyclictest0-21swapper/121:25:161
14836991614,1cyclictest0-21swapper/120:00:181
1483699160,1cyclictest0-21swapper/120:05:181
1483699160,15cyclictest30911-21cat23:25:131
1483699160,15cyclictest0-21swapper/123:05:141
1483699160,15cyclictest0-21swapper/122:40:151
1483699160,15cyclictest0-21swapper/122:05:171
1483699160,15cyclictest0-21swapper/119:35:141
14835991614,1cyclictest0-21swapper/023:40:140
14835991614,1cyclictest0-21swapper/022:10:160
14835991614,1cyclictest0-21swapper/022:00:130
14835991613,2cyclictest9248-21expr19:55:150
14835991613,2cyclictest3983-21H222:10:210
1483599160,2cyclictest20194-21apt-get19:20:010
1483599160,15cyclictest685-21expr21:35:120
14837991513,1cyclictest0-21swapper/222:45:162
14837991513,1cyclictest0-21swapper/222:45:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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