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2026-01-09 - 03:38
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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 Fri Jan 09, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27610993430,4cyclictest0-21swapper/122:27:161
27610992927,2cyclictest0-21swapper/119:35:011
27610992727,0cyclictest0-21swapper/123:15:141
2760699230,5cyclictest0-21swapper/021:30:130
2761499220,19cyclictest0-21swapper/221:25:012
27610992112,1cyclictest0-21swapper/121:20:211
2760699214,16cyclictest3981-21H222:10:210
27606992118,2cyclictest1105-21php7.223:08:590
27606992114,3cyclictest0-21swapper/000:33:340
27610992016,3cyclictest0-21swapper/122:10:121
2760699203,2cyclictest10766-21expr23:25:140
2760699203,2cyclictest10766-21expr23:25:140
27614991916,2cyclictest29877-21ntp_offset23:00:172
27614991915,3cyclictest0-21swapper/220:59:052
2761499190,3cyclictest0-21swapper/222:40:142
2761499190,2cyclictest4099-21H222:10:212
2761499190,16cyclictest4099-21H222:10:212
2761499190,16cyclictest4035-21H222:10:212
2761099198,0cyclictest0-21swapper/122:05:151
2761099192,16cyclictest863-21avahi-daemon20:55:201
27610991918,1cyclictest24085-21latency_hist23:50:001
27610991917,1cyclictest0-21swapper/120:05:011
27610991916,2cyclictest25694-21sed22:55:001
2761099190,2cyclictest3991-21H222:10:211
2761099190,2cyclictest3991-21H222:10:211
2761099190,2cyclictest3989-21H222:10:211
2761099190,2cyclictest3989-21H222:10:211
2761099190,18cyclictest4099-21H222:10:211
2761099190,18cyclictest3371-21cat00:10:001
2761099190,17cyclictest0-21swapper/122:39:381
2761099190,16cyclictest4099-21H222:10:211
2761099190,16cyclictest4035-21H222:10:211
2761099190,16cyclictest4035-21H222:10:211
2761099190,16cyclictest3989-21H222:10:211
2761099190,16cyclictest3989-21H222:10:211
2760699194,1cyclictest0-21swapper/022:35:130
27606991914,2cyclictest3985-21H222:10:210
2760699190,18cyclictest0-21swapper/000:35:120
2760699190,16cyclictest3987-21H222:10:210
2761499182,15cyclictest12660-21chmod19:40:032
2761499182,15cyclictest0-21swapper/222:55:492
27614991815,2cyclictest1667-21ntp_offset22:10:172
27614991814,3cyclictest4099-21H222:10:212
27614991814,3cyclictest3987-21H222:10:212
27614991814,3cyclictest3983-21H222:10:212
27614991813,4cyclictest0-21swapper/223:45:312
2761499181,16cyclictest31017-21expr19:15:142
2761499180,3cyclictest1481-21snapd23:22:102
2761499180,2cyclictest3991-21H222:10:212
2761499180,2cyclictest3987-21H222:10:212
2761499180,17cyclictest3991-21H222:10:212
2761499180,17cyclictest0-21swapper/223:58:042
2761499180,15cyclictest3985-21H222:10:212
2761499180,15cyclictest3983-21H222:10:212
2761099182,15cyclictest79142sleep120:28:401
27610991818,0cyclictest0-21swapper/100:20:141
27610991815,2cyclictest3985-21H222:10:211
27610991815,2cyclictest27958-21open_files22:00:181
27610991815,2cyclictest17404-21cut20:45:151
27610991813,2cyclictest3979-21H222:10:211
2761099181,16cyclictest8128-21cat23:20:111
2761099181,15cyclictest3979-21H222:10:211
2761099180,2cyclictest3983-21H222:10:211
2761099180,2cyclictest3981-21H222:10:211
2761099180,1cyclictest0-21swapper/121:52:051
2761099180,17cyclictest3991-21H222:10:211
2761099180,17cyclictest3987-21H222:10:211
2761099180,15cyclictest3981-21H222:10:211
2760699182,1cyclictest9-21ksoftirqd/000:08:290
27606991816,1cyclictest0-21swapper/019:47:200
27606991816,1cyclictest0-21swapper/019:40:140
27606991815,2cyclictest27620-21awk23:55:150
27606991813,4cyclictest870-21systemd-logind20:18:520
2760699181,16cyclictest0-21swapper/021:40:130
2760699181,16cyclictest0-21swapper/021:40:130
2760699181,15cyclictest0-21swapper/020:25:210
2760699180,3cyclictest0-21swapper/022:55:120
2760699180,2cyclictest4035-21H222:10:210
2760699180,2cyclictest3991-21H222:10:210
2760699180,2cyclictest3983-21H222:10:210
2760699180,2cyclictest11796-21grep20:35:150
2760699180,2cyclictest10367-21mailstats22:25:200
2760699180,2cyclictest0-21swapper/021:15:010
2760699180,17cyclictest3985-21H222:10:210
2760699180,17cyclictest3985-21H222:10:210
2760699180,17cyclictest18577-21grep19:50:140
2760699180,15cyclictest3979-21H222:10:210
27614991715,1cyclictest3314-21ntp_kernel_err23:10:172
27614991714,2cyclictest3981-21H222:10:212
27614991714,2cyclictest3289-21expr20:20:132
27614991714,2cyclictest32735-21/usr/sbin/munin00:05:192
27614991714,2cyclictest30035-21apache_processe00:00:112
27614991714,2cyclictest26500-21/usr/sbin/munin22:00:142
27614991714,2cyclictest26378-21grep21:00:182
27614991714,2cyclictest21071-21apt-get21:50:132
27614991714,2cyclictest17242-21expr20:45:142
27614991714,2cyclictest13126-21systemctl22:30:212
27614991714,2cyclictest10558-21latency19:35:172
27614991714,1cyclictest0-21swapper/223:15:232
27614991713,3cyclictest863-21avahi-daemon19:30:192
2761499170,3cyclictest18056-21/usr/sbin/munin00:35:132
2761499170,2cyclictest3985-21H222:10:212
2761499170,2cyclictest3976-21H222:10:212
2761499170,2cyclictest3976-21H222:10:212
2761499170,2cyclictest15682-21wc19:45:132
2761499170,16cyclictest9427-21sed21:30:012
2761499170,16cyclictest6642-21kernelversion20:25:162
2761499170,16cyclictest4035-21H222:10:212
2761499170,16cyclictest3991-21H222:10:212
2761499170,16cyclictest3989-21H222:10:212
2761499170,16cyclictest3989-21H222:10:212
2761499170,16cyclictest3976-21H222:10:212
2761499170,16cyclictest29738-21wc20:10:132
2761499170,16cyclictest29373-21apt-key22:05:012
2761499170,16cyclictest24155-21apache_processe23:50:112
2761499170,16cyclictest18454-21cat23:40:012
2761499170,16cyclictest14233-21/usr/sbin/munin22:35:112
2761499170,16cyclictest10018-21nfsd422:25:172
2761499170,16cyclictest0-21swapper/219:25:422
27610991715,1cyclictest0-21swapper/123:50:131
27610991714,2cyclictest9884-21expr19:35:131
27610991714,2cyclictest8424-21/usr/sbin/munin20:30:131
27610991714,2cyclictest7214-21fschecks_time00:15:151
27610991714,2cyclictest7050-21expr21:25:131
27610991714,2cyclictest29178-21proc_pri21:05:191
27610991714,2cyclictest25367-21expr21:00:131
27610991714,2cyclictest23128-21chrt19:56:201
27610991714,2cyclictest19597-21cat20:50:131
27610991714,2cyclictest18980-21cut21:45:151
27610991714,2cyclictest11529-21apache_accesses22:30:111
27610991713,3cyclictest455-21plymouthd20:10:131
27610991713,3cyclictest3218-21grep22:15:131
27610991713,3cyclictest0-21swapper/120:37:011
2761099170,2cyclictest6516-21expr22:20:131
2761099170,2cyclictest4099-21H222:10:211
2761099170,2cyclictest3989-21H222:10:211
2761099170,2cyclictest3147-21nfsd423:10:161
2761099170,2cyclictest26616-21tlsmgr23:58:091
2761099170,2cyclictest20012-21cut22:45:011
2761099170,2cyclictest18982-21cstates23:40:131
2761099170,2cyclictest16047-21wc23:35:131
2761099170,16cyclictest6275-21cat00:15:001
2761099170,16cyclictest5392-21sed20:25:011
2761099170,16cyclictest3983-21H222:10:211
2761099170,16cyclictest30389-21expr00:00:131
2761099170,16cyclictest29319-21/usr/sbin/munin23:00:151
2761099170,16cyclictest26265-21cstates22:55:121
2761099170,16cyclictest15926-21cstates19:45:141
2760699172,1cyclictest68552chrt23:15:450
27606991715,1cyclictest229982chrt22:50:070
27606991714,2cyclictest8820-21expr20:30:130
27606991714,2cyclictest16949-21grep23:35:170
27606991714,2cyclictest0-21swapper/020:21:130
27606991713,3cyclictest3985-21H222:10:210
27606991713,3cyclictest0-21swapper/021:35:050
2760699171,15cyclictest0-21swapper/019:25:170
2760699170,2cyclictest3981-21H222:10:210
2760699170,2cyclictest21329-21ls21:50:140
2760699170,2cyclictest20959-21fschecks_time22:45:150
2760699170,2cyclictest1582-21ls19:20:130
2760699170,2cyclictest1550-21snapd23:40:100
2760699170,2cyclictest10091-21sed23:25:000
2760699170,16cyclictest7099-21wc19:30:120
2760699170,16cyclictest6596-21grep00:15:140
2760699170,16cyclictest4980-21needreboot00:10:180
2760699170,16cyclictest3981-21H222:10:210
2760699170,16cyclictest3981-21H222:10:210
2760699170,16cyclictest32024-21munin-plugin-st20:15:010
2760699170,16cyclictest31877-21sed00:00:220
2760699170,16cyclictest30991-21awk22:05:180
2760699170,16cyclictest30837-21grep19:15:140
2760699170,16cyclictest27445-21/usr/sbin/munin22:00:160
2760699170,16cyclictest26922-21expr20:05:130
2760699170,16cyclictest25793-21chrt21:56:170
2760699170,16cyclictest23949-21cat20:55:210
2760699170,16cyclictest22437-21awk19:55:170
2760699170,16cyclictest19879-21munin-run22:45:010
2760699170,16cyclictest14518-21expr20:40:130
2760699170,16cyclictest11221-21sed19:35:210
2760699170,16cyclictest1100-21snmpd21:25:230
2760699170,15cyclictest3981-21H222:10:210
2760699170,15cyclictest3976-21H222:10:210
2760699170,15cyclictest0-21swapper/023:55:000
2760699170,15cyclictest0-21swapper/020:00:110
27614991614,1cyclictest0-21swapper/223:25:142
27614991614,1cyclictest0-21swapper/223:25:142
27614991614,1cyclictest0-21swapper/223:05:142
27614991614,1cyclictest0-21swapper/220:40:132
27614991613,2cyclictest18710-21dpkg23:40:122
27614991612,3cyclictest3979-21H222:10:212
2761499160,2cyclictest0-21swapper/222:15:182
2761499160,1cyclictest31807-21nfsd421:10:162
2761499160,1cyclictest0-21swapper/221:30:102
2761499160,15cyclictest3985-21H222:10:212
2761499160,15cyclictest0-21swapper/221:40:122
2761499160,15cyclictest0-21swapper/221:40:122
2761499160,15cyclictest0-21swapper/200:25:122
27610991614,1cyclictest0-21swapper/120:40:111
2761099160,1cyclictest0-21swapper/121:30:141
27606991614,1cyclictest0-21swapper/022:30:140
2760699160,15cyclictest25432-21expr21:00:130
2760699160,15cyclictest0-21swapper/023:10:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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