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2026-09-19 - 07:35
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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 100 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
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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