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2026-05-18 - 09:43
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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 Mon May 18, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1047299240,5cyclictest19429-21latency_hist23:15:010
1047799230,18cyclictest0-21swapper/222:04:502
10477992017,2cyclictest17096-21iwlist19:20:172
10477992015,4cyclictest0-21swapper/200:25:142
10472992017,2cyclictest3981-21H222:10:210
1047799192,16cyclictest30500-21smtpd23:33:502
10477991917,1cyclictest28-21ksoftirqd/223:06:452
1047799191,17cyclictest0-21swapper/200:00:222
1047799190,18cyclictest0-21swapper/221:40:142
1047799190,16cyclictest4035-21H222:10:212
1047399193,15cyclictest3981-21H222:10:211
1047399192,16cyclictest3981-21H222:10:211
10473991917,1cyclictest21-21ksoftirqd/123:31:021
10473991916,2cyclictest21-21ksoftirqd/123:35:121
10473991914,3cyclictest16749-21nfsd422:10:181
1047399190,16cyclictest3981-21H222:10:211
10472991917,1cyclictest0-21swapper/021:45:010
10472991917,1cyclictest0-21swapper/020:10:170
1047299190,2cyclictest3989-21H222:10:210
1047299190,16cyclictest3985-21H222:10:210
1047299190,16cyclictest3979-21H222:10:210
1047799182,15cyclictest19752-21mailstats22:15:222
10477991815,2cyclictest7464-21chrt22:51:072
10477991815,2cyclictest18262-21awk23:10:182
10477991814,3cyclictest3991-21H222:10:212
10477991814,3cyclictest3981-21H222:10:212
10477991814,3cyclictest27877-21cron23:30:012
1047799180,2cyclictest3985-21H222:10:212
1047799180,1cyclictest3989-21H222:10:212
1047799180,17cyclictest843-21systemd-network19:30:062
1047799180,17cyclictest20856-21grep23:15:172
1047799180,15cyclictest4099-21H222:10:212
10473991816,1cyclictest21-21ksoftirqd/121:48:171
10473991814,3cyclictest399-20systemd-journal23:55:001
10473991814,2cyclictest4035-21H222:10:211
1047399180,17cyclictest4099-21H222:10:211
1047399180,17cyclictest0-21swapper/122:05:131
1047399180,16cyclictest3985-21H222:10:211
1047399180,15cyclictest32267-21expr22:40:141
1047299182,15cyclictest9-21ksoftirqd/000:06:260
10472991815,2cyclictest3976-21H222:10:210
10472991814,3cyclictest4099-21H222:10:210
10472991814,3cyclictest0-21swapper/023:21:130
1047299181,16cyclictest7752-21ps20:00:200
1047299180,3cyclictest1522-21lxd21:24:510
1047299180,17cyclictest4035-21H222:10:210
1047299180,17cyclictest3979-21H222:10:210
1047299180,17cyclictest3976-21H222:10:210
1047299180,17cyclictest24317-21/usr/sbin/munin22:25:150
1047299180,15cyclictest3989-21H222:10:210
1047299180,15cyclictest3983-21H222:10:210
10477991715,1cyclictest0-21swapper/222:20:182
10477991715,1cyclictest0-21swapper/221:50:202
10477991715,1cyclictest0-21swapper/221:45:192
10477991715,1cyclictest0-21swapper/220:40:092
10477991714,2cyclictest9004-21chrt20:05:132
10477991714,2cyclictest6489-21cut20:00:132
10477991714,2cyclictest5500-21expr23:45:162
10477991714,2cyclictest5096-21wc19:55:222
10477991714,2cyclictest3987-21H222:10:212
10477991714,2cyclictest3985-21H222:10:212
10477991714,2cyclictest3985-21H222:10:212
10477991714,2cyclictest30973-21expr00:30:162
10477991714,2cyclictest20835-21ps21:20:202
10477991714,2cyclictest14934-21nvmesmart_nvme019:15:212
10477991712,2cyclictest4099-21H222:10:212
1047799171,15cyclictest19532-21chrt20:22:272
1047799170,2cyclictest3985-21H222:10:212
1047799170,2cyclictest3981-21H222:10:212
1047799170,2cyclictest29861-21timerwakeupswit21:35:222
1047799170,2cyclictest29057-21chrt22:35:062
1047799170,2cyclictest23360-21expr23:20:152
1047799170,2cyclictest23307-21nfsd421:25:172
1047799170,2cyclictest12373-21systemctl19:10:212
1047799170,2cyclictest1174-21pzem_voltage22:40:202
1047799170,2cyclictest10730-21apt-key21:05:012
1047799170,1cyclictest3985-21H222:10:212
1047799170,16cyclictest4340-21users23:40:212
1047799170,16cyclictest3991-21H222:10:212
1047799170,16cyclictest3989-21H222:10:212
1047799170,16cyclictest3987-21H222:10:212
1047799170,16cyclictest24285-21nvmesmart_nvme020:30:192
1047799170,16cyclictest1377-21lxd20:14:512
1047799170,16cyclictest1375-21munin-node00:35:112
1047799170,16cyclictest1290-21kerneloops22:25:302
1047799170,16cyclictest0-21swapper/220:45:182
1047399172,15cyclictest21-21ksoftirqd/122:37:041
10473991714,2cyclictest4099-21H222:10:211
10473991714,2cyclictest4099-21H222:10:211
10473991714,2cyclictest3991-21H222:10:211
10473991714,2cyclictest3989-21H222:10:211
10473991714,2cyclictest3987-21H222:10:211
10473991714,2cyclictest3414-21master21:56:041
10473991714,2cyclictest3414-21master00:22:171
10473991714,2cyclictest22196-21nfsd422:20:191
10473991714,2cyclictest19908-21sed22:15:221
10473991714,2cyclictest1351-21lxd21:12:501
10473991713,3cyclictest4099-21H222:10:211
1047399171,15cyclictest4099-21H222:10:211
1047399171,15cyclictest3985-21H222:10:211
1047399171,15cyclictest30579-21chrt20:42:121
1047399170,3cyclictest14505-21snapd21:30:281
1047399170,3cyclictest0-21swapper/120:35:151
1047399170,2cyclictest3991-21H222:10:211
1047399170,2cyclictest3985-21H222:10:211
1047399170,2cyclictest28660-21sed00:25:161
1047399170,2cyclictest20031-21fschecks_time21:20:161
1047399170,2cyclictest17629-21nfsd419:20:181
1047399170,1cyclictest3985-21H222:10:211
1047399170,16cyclictest4099-21H222:10:211
1047399170,16cyclictest3991-21H222:10:211
1047399170,16cyclictest3989-21H222:10:211
1047399170,16cyclictest3989-21H222:10:211
1047399170,16cyclictest32765-21pzem_voltage20:45:221
1047399170,16cyclictest28989-21munin-run22:35:001
1047399170,16cyclictest23495-21tune2fs20:30:151
1047399170,16cyclictest1521-21lxd19:46:511
1047399170,15cyclictest3989-21H222:10:211
1047399170,15cyclictest3987-21H222:10:211
10472991714,2cyclictest9952-21sendmail-mta23:52:220
10472991714,2cyclictest4326-21timerwakeupswit23:40:210
10472991714,2cyclictest3985-21H222:10:210
10472991714,2cyclictest17133-21cat21:15:170
10472991714,2cyclictest13539-21sed21:10:010
1047299170,2cyclictest3991-21H222:10:210
1047299170,2cyclictest3989-21H222:10:210
1047299170,2cyclictest30996-21kernelversion19:45:190
1047299170,2cyclictest28866-21sed19:40:200
1047299170,2cyclictest23364-21expr20:30:150
1047299170,2cyclictest1924-21expr20:50:140
1047299170,2cyclictest14270-21timerandwakeup22:05:200
1047299170,2cyclictest11689-21sed22:00:220
1047299170,2cyclictest10247-21python321:05:010
1047299170,1cyclictest0-21swapper/022:12:210
1047299170,1cyclictest0-21swapper/019:56:110
1047299170,16cyclictest6749-21awk22:50:180
1047299170,16cyclictest3989-21H222:10:210
1047299170,16cyclictest3351-21lxd21:38:510
1047299170,16cyclictest29105-21fschecks_count20:40:140
1047299170,16cyclictest26861-21grep23:25:170
1047299170,16cyclictest24893-21grep21:30:130
1047299170,16cyclictest22443-21cut00:15:150
1047299170,16cyclictest21513-21sed19:30:000
1047299170,16cyclictest2069-21systemd-udevd20:28:520
1047299170,16cyclictest2069-21systemd-udevd20:28:510
1047299170,16cyclictest18642-21netstat20:20:200
1047299170,16cyclictest18432-21expr22:15:150
10477991615,1cyclictest0-21swapper/222:06:032
10477991614,1cyclictest0-21swapper/223:55:142
10477991614,1cyclictest0-21swapper/221:55:162
10477991614,1cyclictest0-21swapper/220:15:142
10477991614,1cyclictest0-21swapper/219:40:172
1047799160,1cyclictest0-21swapper/221:10:152
1047799160,1cyclictest0-21swapper/219:50:152
1047799160,15cyclictest26359-21apache_processe22:30:132
1047799160,15cyclictest0-21swapper/221:00:012
1047799160,15cyclictest0-21swapper/220:35:152
1047799160,15cyclictest0-21swapper/220:25:142
1047799160,15cyclictest0-21swapper/220:25:132
10473991614,1cyclictest7713-21dpkg21:00:021
10473991614,1cyclictest0-21swapper/122:00:161
10473991614,1cyclictest0-21swapper/121:35:191
10473991614,1cyclictest0-21swapper/119:40:221
10473991613,2cyclictest3983-21H222:10:211
1047399160,1cyclictest0-21swapper/119:55:221
1047399160,1cyclictest0-21swapper/119:15:161
1047399160,1cyclictest0-21swapper/119:10:221
1047399160,15cyclictest8282-21cpuspeed_turbos22:55:131
1047399160,15cyclictest435-21grep19:50:141
1047399160,15cyclictest32720-21timerwakeupswit21:40:211
1047399160,15cyclictest2225-21df20:50:141
1047399160,15cyclictest0-21swapper/121:50:151
1047399160,15cyclictest0-21swapper/121:15:161
1047399160,15cyclictest0-21swapper/120:25:141
1047399160,15cyclictest0-21swapper/120:25:141
1047399160,15cyclictest0-21swapper/120:20:151
1047399160,15cyclictest0-21swapper/100:30:141
1047399160,15cyclictest0-21swapper/100:15:161
10472991614,1cyclictest0-21swapper/022:40:150
10472991614,1cyclictest0-21swapper/022:35:050
10472991614,1cyclictest0-21swapper/022:30:140
10472991614,1cyclictest0-21swapper/021:55:160
10472991614,1cyclictest0-21swapper/021:25:130
10472991614,1cyclictest0-21swapper/021:10:170
10472991614,1cyclictest0-21swapper/020:55:200
10472991614,1cyclictest0-21swapper/020:35:150
10472991614,1cyclictest0-21swapper/020:05:460
10472991614,1cyclictest0-21swapper/019:35:110
10472991614,1cyclictest0-21swapper/019:15:170
10472991613,2cyclictest8152-21cron22:55:000
10472991613,2cyclictest0-21swapper/020:45:130
10472991613,1cyclictest0-21swapper/023:55:080
1047299161,1cyclictest0-21swapper/023:35:130
1047299160,15cyclictest3991-21H222:10:210
1047299160,15cyclictest3985-21H222:10:210
1047299160,15cyclictest0-21swapper/020:15:200
1047299160,15cyclictest0-21swapper/000:25:160
1047399150,1cyclictest3976-21H222:10:211
10472991513,1cyclictest0-21swapper/021:50:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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