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2026-06-13 - 07:31
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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 Sat Jun 13, 2026 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6475992818,10cyclictest0-21swapper/122:06:311
6479992617,9cyclictest0-21swapper/221:15:132
647099251,19cyclictest0-21swapper/000:09:590
647999220,18cyclictest0-21swapper/219:27:012
647099220,8cyclictest0-21swapper/023:44:000
647999210,18cyclictest6565-21apt-config22:00:002
647599210,18cyclictest0-21swapper/122:01:081
647999204,1cyclictest0-21swapper/221:10:152
6479992017,2cyclictest0-21swapper/219:20:132
647999192,16cyclictest13124-21expr22:10:132
647999192,16cyclictest0-21swapper/222:36:042
647599192,16cyclictest30337-21chrt23:37:161
6475991916,2cyclictest24749-21tr19:40:121
6475991915,1cyclictest0-21swapper/123:25:011
6475991914,4cyclictest399-20systemd-journal19:25:011
647599190,1cyclictest201rcuc/123:00:131
647599190,18cyclictest399-20systemd-journal22:19:561
647099192,2cyclictest4312-21expr22:50:180
6470991914,4cyclictest1718-21cpuspeed_turbos23:45:120
647999182,15cyclictest71262chrt21:01:552
6479991816,1cyclictest0-21swapper/221:09:112
6479991814,2cyclictest14607-21nfsd400:05:222
6479991813,4cyclictest26276-21sh22:35:002
6479991813,4cyclictest0-21swapper/223:35:182
647999181,2cyclictest11739-21chrt19:19:042
647999181,16cyclictest27731-21smtpd20:41:372
647999181,15cyclictest0-21swapper/222:40:122
647599182,15cyclictest0-21swapper/120:00:171
6475991815,2cyclictest20166-21grep21:25:141
6475991814,3cyclictest0-21swapper/123:51:221
647599180,17cyclictest3987-21H222:10:211
6470991816,1cyclictest0-21swapper/020:00:220
6470991810,5cyclictest1100-21snmpd21:09:010
647099180,16cyclictest6249-21python322:00:010
647099180,16cyclictest3981-21H222:10:210
6479991715,1cyclictest777-21cpuspeed_turbos21:50:142
6479991715,1cyclictest0-21swapper/219:10:022
6479991715,1cyclictest0-21swapper/200:14:532
6479991714,2cyclictest8049-21expr23:55:122
6479991714,2cyclictest28804-21/usr/sbin/munin20:45:132
6479991714,2cyclictest27612-21expr00:30:122
6479991714,2cyclictest26894-21idleruntime-cro19:45:012
6479991714,2cyclictest24792-21python323:30:002
6479991714,2cyclictest18503-21plymouth23:15:192
6479991714,2cyclictest13043-21sed23:05:212
6479991714,2cyclictest10786-21memory22:05:162
647999171,1cyclictest0-21swapper/223:45:192
647999171,1cyclictest0-21swapper/219:30:102
647999171,15cyclictest0-21swapper/220:05:192
647999170,2cyclictest6972-21gpg-connect-age22:00:022
647999170,2cyclictest5209-21/usr/sbin/munin23:50:132
647999170,2cyclictest3058-21rs:main2
647999170,2cyclictest28371-21sed19:45:162
647999170,2cyclictest24936-21cstates00:25:132
647999170,2cyclictest1945-21latency_hist20:55:012
647999170,2cyclictest16841-21sed23:15:012
647999170,2cyclictest1300-21lxd20:12:512
647999170,16cyclictest863-21avahi-daemon19:35:212
647999170,16cyclictest6314-21expr22:55:142
647999170,16cyclictest4165-21grep20:00:142
647999170,16cyclictest27443-21https21:40:002
647999170,16cyclictest24787-21expr21:35:132
647999170,16cyclictest23450-21fschecks_time20:35:142
647999170,16cyclictest22487-21expr22:25:182
647999170,16cyclictest20738-21chrt22:23:572
647999170,16cyclictest20341-21proc_pri21:25:172
647999170,16cyclictest19922-21cat23:20:132
647999170,16cyclictest1829-21systemd-journal20:25:012
647999170,16cyclictest1829-21systemd-journal20:25:012
647999170,16cyclictest1280-21if_lxdbr019:55:172
647999170,16cyclictest0-21swapper/200:35:102
647599172,9cyclictest15375-21logrotate00:07:131
6475991715,1cyclictest15951-21ls19:25:171
6475991715,1cyclictest0-21swapper/123:47:201
6475991714,2cyclictest870-21systemd-logind23:16:521
6475991714,2cyclictest3987-21H222:10:211
6475991714,2cyclictest31290-21ls22:40:201
6475991714,2cyclictest2872-21systemd-logind00:04:511
6475991714,2cyclictest25360-21touch23:30:001
6475991714,2cyclictest21993-21awk19:35:161
6475991714,2cyclictest19500-21sed22:20:161
6475991714,2cyclictest13992-21smtp20:17:441
6475991714,2cyclictest10678-21apache_accesses21:10:101
647599171,2cyclictest5056-21kworker/1:121:31:171
647599171,15cyclictest4099-21H222:10:211
647599170,3cyclictest1035-21thermald00:25:201
647599170,3cyclictest0-21swapper/122:26:081
647599170,2cyclictest6254-21python322:00:011
647599170,2cyclictest29107-21timerandwakeup19:45:211
647599170,2cyclictest2174-21timerandwakeup19:55:221
647599170,2cyclictest17060-21if_enp1s000:10:151
647599170,16cyclictest7802-21sendmail_mailst20:05:201
647599170,16cyclictest5410-21munin-run22:55:001
647599170,16cyclictest3989-21H222:10:211
647599170,16cyclictest29820-21latency20:45:161
647599170,16cyclictest25249-21uname21:35:161
647599170,16cyclictest22061-21expr00:20:121
647599170,16cyclictest11266-21/usr/sbin/munin23:05:111
647599170,16cyclictest1118-21munin-plugin-st23:45:001
647599170,15cyclictest0-21swapper/100:19:121
647099172,1cyclictest0-21swapper/022:45:200
6470991716,1cyclictest9-21ksoftirqd/020:53:210
6470991714,2cyclictest28255-21cpu23:35:120
6470991714,2cyclictest2444-21cat20:55:130
6470991714,2cyclictest20513-21python319:35:010
6470991714,2cyclictest13175-21awk20:15:180
6470991714,2cyclictest11899-21cut21:10:180
6470991714,2cyclictest11149-21switchtime19:15:210
6470991714,1cyclictest0-21swapper/019:35:150
6470991714,1cyclictest0-21swapper/000:15:550
647099171,2cyclictest22232-21latency22:25:160
6470991712,3cyclictest0-21swapper/019:10:130
647099171,15cyclictest99822chrt23:58:540
647099170,2cyclictest8367-21chrt20:07:390
647099170,2cyclictest27057-21ntp_kernel_err20:40:170
647099170,2cyclictest26783-21cpuspeed_turbos22:35:110
647099170,2cyclictest25229-21awk22:30:150
647099170,2cyclictest22475-21basename00:20:150
647099170,2cyclictest21718-21chrt23:21:530
647099170,2cyclictest12209-21latency_hist22:10:000
647099170,1cyclictest0-21swapper/000:26:340
647099170,16cyclictest9530-21cupsd20:49:260
647099170,16cyclictest31059-21fschecks_time21:45:140
647099170,16cyclictest30288-21ls19:50:130
647099170,16cyclictest2813-21perf20:00:000
647099170,16cyclictest27402-21apt-key21:40:010
647099170,16cyclictest24455-21master23:26:580
647099170,16cyclictest23714-21kernelversion20:35:160
647099170,16cyclictest19792-21awk22:20:180
647099170,16cyclictest15673-21fschecks_time19:25:150
647099170,16cyclictest13758-21apt23:10:000
647099170,16cyclictest0-21swapper/021:30:560
6479991615,1cyclictest0-21swapper/221:45:132
6479991614,1cyclictest0-21swapper/223:34:462
6479991614,1cyclictest0-21swapper/223:00:132
6479991614,1cyclictest0-21swapper/220:30:112
6479991614,1cyclictest0-21swapper/219:50:042
6479991614,1cyclictest0-21swapper/200:00:182
6479991613,2cyclictest455-21plymouthd22:45:142
6479991613,2cyclictest31161-21apt-get23:40:112
647999160,15cyclictest19804-21if_enp1s000:15:152
647999160,15cyclictest17358-21apt-get20:25:112
647999160,15cyclictest16526-21expr21:20:122
647999160,15cyclictest15749-21expr22:15:112
647999160,15cyclictest0-21swapper/222:50:112
647999160,15cyclictest0-21swapper/221:30:182
647999160,15cyclictest0-21swapper/220:55:142
647999160,15cyclictest0-21swapper/200:20:132
6475991614,1cyclictest31832-21expr20:50:111
6475991614,1cyclictest27340-21fschecks_time22:35:121
6475991614,1cyclictest0-21swapper/122:55:161
6475991614,1cyclictest0-21swapper/121:40:011
6475991614,1cyclictest0-21swapper/121:09:401
6475991614,1cyclictest0-21swapper/120:55:181
6475991614,1cyclictest0-21swapper/120:35:141
6475991613,2cyclictest28266-21missed_timers00:30:171
6475991613,2cyclictest14171-21apache_accesses23:10:091
6475991613,2cyclictest0-21swapper/121:00:151
647599160,1cyclictest9343-21cpuspeed_turbos20:10:131
647599160,1cyclictest0-21swapper/121:15:121
647599160,1cyclictest0-21swapper/119:30:011
647599160,15cyclictest7770-21apache_volume23:55:121
647599160,15cyclictest680-21apt-get21:50:131
647599160,15cyclictest3985-21H222:10:211
647599160,15cyclictest25699-21apache_processe20:40:111
647599160,15cyclictest13338-21smartctl22:10:151
647599160,15cyclictest0-21swapper/123:25:211
647599160,15cyclictest0-21swapper/121:20:131
647599160,15cyclictest0-21swapper/120:30:111
647599160,15cyclictest0-21swapper/120:20:101
647599160,15cyclictest0-21swapper/120:20:091
647599160,15cyclictest0-21swapper/119:50:141
647599160,15cyclictest0-21swapper/119:10:131
6470991614,1cyclictest20566-21ls21:25:180
6470991614,1cyclictest0-21swapper/023:50:120
6470991614,1cyclictest0-21swapper/023:15:130
6470991614,1cyclictest0-21swapper/022:55:160
6470991614,1cyclictest0-21swapper/022:10:150
6470991614,1cyclictest0-21swapper/021:35:400
6470991614,1cyclictest0-21swapper/020:20:130
6470991614,1cyclictest0-21swapper/020:20:120
6470991614,1cyclictest0-21swapper/020:13:400
6470991614,1cyclictest0-21swapper/019:20:120
6470991614,1cyclictest0-21swapper/000:00:170
6470991613,2cyclictest1085-21gdbus19:40:190
647099161,1cyclictest27454-21cpuspeed_turbos19:45:130
647099160,1cyclictest15628-21cstates22:15:120
647099160,1cyclictest0-21swapper/021:00:210
647099160,1cyclictest0-21swapper/020:30:130
647099160,1cyclictest0-21swapper/000:15:000
647099160,15cyclictest914-21tr21:50:130
647099160,15cyclictest8622-21grep23:00:120
647099160,15cyclictest3989-21H222:10:210
647099160,15cyclictest25895-21expr23:30:120
647099160,15cyclictest17330-21/usr/sbin/munin20:25:200
647099160,15cyclictest0-21swapper/023:10:110
647099160,15cyclictest0-21swapper/022:40:150
647099160,15cyclictest0-21swapper/022:00:140
647099160,15cyclictest0-21swapper/021:20:130
647099160,15cyclictest0-21swapper/021:15:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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