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2026-09-19 - 11:04
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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 Sat Sep 19, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
331199246,15cyclictest0-21swapper/122:04:591
331699230,5cyclictest0-21swapper/220:58:462
3311992314,0cyclictest0-21swapper/119:50:151
331099230,5cyclictest0-21swapper/022:35:150
331199220,21cyclictest843-21systemd-network22:55:281
331199220,18cyclictest0-21swapper/120:35:061
331099220,4cyclictest0-21swapper/000:08:500
331199212,5cyclictest0-21swapper/121:06:461
331699202,2cyclictest3981-21H222:10:212
3311992018,2cyclictest0-21swapper/120:35:011
331099204,15cyclictest0-21swapper/023:13:400
331099203,2cyclictest12949-21grep00:10:160
331099202,17cyclictest0-21swapper/022:04:030
3310992010,9cyclictest28668-21pluginstate19:55:010
331699192,2cyclictest20234-21taskset23:25:462
3316991917,1cyclictest0-21swapper/223:40:572
3316991912,3cyclictest0-21swapper/222:39:302
331699190,2cyclictest3981-21H222:10:212
331699190,16cyclictest3976-21H222:10:212
331199193,2cyclictest22677-21date00:30:001
3311991917,1cyclictest21-21ksoftirqd/100:11:431
3311991916,2cyclictest14056-21grep21:20:181
3311991916,2cyclictest0-21swapper/122:48:481
331199190,2cyclictest3981-21H222:10:211
331199190,17cyclictest3987-21H222:10:211
331199190,16cyclictest4035-21H222:10:211
331199190,16cyclictest4035-21H222:10:211
331199190,16cyclictest4035-21H222:10:211
331199190,16cyclictest3991-21H222:10:211
331099192,2cyclictest3752-21latency20:05:160
3310991913,5cyclictest0-21swapper/023:30:000
331099190,17cyclictest3991-21H222:10:210
331099190,16cyclictest3979-21H222:10:210
331099190,16cyclictest3976-21H222:10:210
331099190,16cyclictest3976-21H222:10:210
331099190,16cyclictest3976-21H222:10:210
331099190,16cyclictest15296-21munin-run23:20:010
331699182,15cyclictest28-21ksoftirqd/220:32:272
331699182,15cyclictest0-21swapper/222:13:512
3316991818,0cyclictest0-21swapper/223:50:152
3316991816,1cyclictest28-21ksoftirqd/221:31:292
3316991815,2cyclictest5359-21chrt22:02:012
3316991814,3cyclictest3979-21H222:10:212
3316991814,3cyclictest3976-21H222:10:212
3316991814,3cyclictest0-21swapper/221:50:002
3316991814,3cyclictest0-21swapper/200:15:142
3316991814,2cyclictest3991-21H222:10:212
331699180,3cyclictest14485-21dpkg00:15:012
331699180,17cyclictest1534-21grep21:55:172
331699180,16cyclictest3985-21H222:10:212
331699180,16cyclictest3985-21H222:10:212
331699180,16cyclictest3985-21H222:10:212
331699180,16cyclictest12971-21grep20:20:182
331699180,15cyclictest3991-21H222:10:212
331699180,15cyclictest3989-21H222:10:212
331199182,15cyclictest21-21ksoftirqd/123:53:151
331199182,15cyclictest21-21ksoftirqd/120:42:331
3311991814,3cyclictest4035-21H222:10:211
3311991814,3cyclictest11594-21pzem_current21:15:191
3311991814,1cyclictest0-21swapper/121:10:171
3311991814,1cyclictest0-21swapper/100:05:171
331199181,16cyclictest3981-21H222:10:211
331199180,2cyclictest4099-21H222:10:211
331199180,2cyclictest4035-21H222:10:211
331199180,2cyclictest3991-21H222:10:211
331199180,2cyclictest3983-21H222:10:211
331199180,2cyclictest3976-21H222:10:211
331199180,17cyclictest4099-21H222:10:211
331199180,17cyclictest4099-21H222:10:211
331199180,17cyclictest4035-21H222:10:211
331199180,17cyclictest3981-21H222:10:211
331199180,17cyclictest3979-21H222:10:211
331199180,15cyclictest3989-21H222:10:211
331199180,15cyclictest3983-21H222:10:211
331199180,15cyclictest3983-21H222:10:211
331199180,15cyclictest3979-21H222:10:211
331099189,5cyclictest0-21swapper/021:20:150
3310991817,1cyclictest9-21ksoftirqd/021:14:510
3310991817,1cyclictest9-21ksoftirqd/020:17:210
3310991816,1cyclictest9-21ksoftirqd/023:56:240
3310991816,1cyclictest9-21ksoftirqd/023:41:590
3310991816,1cyclictest0-21swapper/019:49:360
3310991814,3cyclictest3991-21H222:10:210
3310991814,3cyclictest3985-21H222:10:210
331099181,1cyclictest0-21swapper/022:52:230
331099181,16cyclictest0-21swapper/019:25:170
331099180,2cyclictest3985-21H222:10:210
331099180,2cyclictest3976-21H222:10:210
331099180,17cyclictest3976-21H222:10:210
331099180,16cyclictest3979-21H222:10:210
331099180,15cyclictest4099-21H222:10:210
331099180,15cyclictest3989-21H222:10:210
331099180,15cyclictest3989-21H222:10:210
331099180,15cyclictest3985-21H222:10:210
3316991715,1cyclictest4936-21cat23:55:212
3316991715,1cyclictest0-21swapper/220:35:212
3316991714,2cyclictest863-21avahi-daemon00:30:212
3316991714,2cyclictest863-21avahi-daemon00:30:202
3316991714,2cyclictest6556-21df00:00:132
3316991714,2cyclictest3983-21H222:10:212
3316991714,2cyclictest3981-21H222:10:212
3316991714,2cyclictest3979-21H222:10:212
3316991714,2cyclictest30853-21pzem_energy23:45:192
3316991714,2cyclictest27805-21mailstats19:50:192
3316991714,2cyclictest19526-21switchtime19:35:222
3316991714,2cyclictest14352-21/usr/sbin/munin22:20:182
3316991714,2cyclictest12620-21cat21:20:012
3316991714,2cyclictest0-21swapper/221:37:012
3316991714,2cyclictest0-21swapper/200:05:132
331699171,15cyclictest25499-21systemctl21:40:212
331699171,15cyclictest0-21swapper/200:35:232
331699170,2cyclictest7089-21cut21:10:002
331699170,2cyclictest6758-21idleruntime22:05:162
331699170,2cyclictest3991-21H222:10:212
331699170,2cyclictest3989-21H222:10:212
331699170,2cyclictest32686-21expr20:00:132
331699170,2cyclictest31275-21cat22:50:122
331699170,2cyclictest10976-21sshd20:17:042
331699170,16cyclictest843-21systemd-network20:52:282
331699170,16cyclictest6933-21expr19:15:132
331699170,16cyclictest4099-21H222:10:212
331699170,16cyclictest4035-21H222:10:212
331699170,16cyclictest4035-21H222:10:212
331699170,16cyclictest4035-21H222:10:212
331699170,16cyclictest3989-21H222:10:212
331699170,16cyclictest3983-21H222:10:212
331699170,16cyclictest3983-21H222:10:212
331699170,16cyclictest3979-21H222:10:212
331699170,16cyclictest21201-21ntpq22:30:182
331699170,16cyclictest16648-21sed23:20:182
331699170,15cyclictest3989-21H222:10:212
331699170,15cyclictest0-21swapper/220:45:172
331199172,1cyclictest0-21swapper/119:20:281
3311991714,2cyclictest3989-21H222:10:211
3311991714,2cyclictest3983-21H222:10:211
3311991714,2cyclictest28579-21cat21:45:221
3311991714,2cyclictest21379-21chrt22:30:191
3311991714,2cyclictest19017-21basename23:25:151
3311991714,2cyclictest14550-21snapd19:47:581
3311991714,2cyclictest12599-21expr20:20:161
3311991713,3cyclictest3981-21H222:10:211
331199171,15cyclictest3981-21H222:10:211
331199170,2cyclictest3985-21H222:10:211
331199170,2cyclictest3985-21H222:10:211
331199170,2cyclictest3981-21H222:10:211
331199170,2cyclictest15698-21/usr/sbin/munin00:15:161
331199170,2cyclictest11369-21nfsd423:10:191
331199170,16cyclictest4099-21H222:10:211
331199170,16cyclictest4035-21H222:10:211
331199170,16cyclictest4035-21H222:10:211
331199170,16cyclictest3991-21H222:10:211
331199170,16cyclictest3979-21H222:10:211
331199170,16cyclictest3976-21H222:10:211
331199170,16cyclictest3976-21H222:10:211
331199170,16cyclictest3858-21smartctl23:55:141
331199170,16cyclictest30506-21taskset23:45:171
331199170,16cyclictest25525-21mailstats21:40:211
331199170,16cyclictest21966-21latency23:30:161
331099172,1cyclictest9-21ksoftirqd/021:54:550
3310991715,1cyclictest3450-21gsd-color20:20:280
3310991715,1cyclictest0-21swapper/023:20:190
3310991715,1cyclictest0-21swapper/000:20:120
3310991714,2cyclictest4099-21H222:10:210
3310991714,2cyclictest3991-21H222:10:210
3310991714,2cyclictest3985-21H222:10:210
3310991714,2cyclictest3985-21H222:10:210
3310991714,2cyclictest27511-21sshd20:46:010
3310991714,2cyclictest22190-21nfsd423:30:170
3310991714,2cyclictest21602-21grep00:25:180
3310991714,2cyclictest19041-21sed22:25:210
3310991714,2cyclictest15785-21ntp_offset22:20:180
3310991714,1cyclictest0-21swapper/023:37:490
331099171,15cyclictest218602chrt22:31:220
331099170,2cyclictest4035-21H222:10:210
331099170,2cyclictest3987-21H222:10:210
331099170,2cyclictest3983-21H222:10:210
331099170,2cyclictest3983-21H222:10:210
331099170,2cyclictest3981-21H222:10:210
331099170,2cyclictest3979-21H222:10:210
331099170,2cyclictest3979-21H222:10:210
331099170,2cyclictest3976-21H222:10:210
331099170,2cyclictest30387-21sort23:45:170
331099170,1cyclictest3976-21H222:10:210
331099170,16cyclictest8690-21pzem_voltage23:05:190
331099170,16cyclictest7889-21chrt20:12:420
331099170,16cyclictest4099-21H222:10:210
331099170,16cyclictest3987-21H222:10:210
331099170,16cyclictest3979-21H222:10:210
331099170,16cyclictest3979-21H222:10:210
331099170,16cyclictest22586-21sendmail_mailst21:35:220
3316991614,1cyclictest0-21swapper/222:40:352
3316991613,2cyclictest29706-21pzem_current22:45:182
3316991613,2cyclictest23284-21munin-run19:45:002
331699160,15cyclictest0-21swapper/223:10:132
3311991613,2cyclictest6352-21cat00:00:131
3311991613,2cyclictest4099-21H222:10:211
3311991613,2cyclictest4099-21H222:10:211
331199160,15cyclictest0-21swapper/120:15:131
331099160,15cyclictest24211-21expr21:40:130
331099160,15cyclictest0-21swapper/021:45:160
331099160,15cyclictest0-21swapper/020:55:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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