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2026-09-06 - 07:26
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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 Sun Sep 06, 2026 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11493992513,6cyclictest0-21swapper/223:15:172
11493992220,1cyclictest4035-21H222:10:212
11493992119,1cyclictest16695-21ntp_kernel_pll_21:10:182
11492992114,6cyclictest0-21swapper/121:50:201
11492992114,6cyclictest0-21swapper/121:50:191
1149199210,19cyclictest399-20systemd-journal20:00:090
1149399203,2cyclictest6060-21latency_hist21:50:002
1149399202,2cyclictest30246-21grep22:30:212
1149299209,10cyclictest0-21swapper/123:00:141
1149199203,16cyclictest3976-21H222:10:210
1149199200,19cyclictest0-21swapper/023:22:580
1149399192,16cyclictest0-21swapper/200:20:202
1149399190,2cyclictest4035-21H222:10:212
1149399190,2cyclictest3991-21H222:10:212
1149399190,18cyclictest31781-21cstates19:45:142
1149399190,18cyclictest0-21swapper/219:59:042
1149399190,16cyclictest3981-21H222:10:212
1149299192,2cyclictest3983-21H222:10:211
1149299190,2cyclictest3983-21H222:10:211
1149299190,18cyclictest0-21swapper/120:58:301
1149299190,16cyclictest4099-21H222:10:211
1149299190,16cyclictest3985-21H222:10:211
1149199193,1cyclictest9-21ksoftirqd/020:50:380
11491991917,1cyclictest0-21swapper/023:42:240
11491991916,2cyclictest24601-21munin-plugin-st20:30:000
1149199190,2cyclictest3991-21H222:10:210
1149199190,2cyclictest3976-21H222:10:210
1149199190,17cyclictest3981-21H222:10:210
1149399182,15cyclictest0-21swapper/219:51:352
11493991816,1cyclictest28-21ksoftirqd/222:45:002
11493991816,1cyclictest0-21swapper/221:18:102
11493991814,3cyclictest3979-21H222:10:212
11493991814,3cyclictest25416-21http_loadtime23:20:162
1149399181,2cyclictest3979-21H222:10:212
1149399180,3cyclictest3983-21H222:10:212
1149399180,2cyclictest5024-21if_enp1s020:50:182
1149399180,17cyclictest3979-21H222:10:212
1149399180,17cyclictest19319-21grep00:05:192
1149399180,17cyclictest0-21swapper/223:52:512
1149399180,16cyclictest26504-21grep19:35:152
1149399180,16cyclictest0-21swapper/219:17:342
1149399180,16cyclictest0-21swapper/219:17:342
1149299182,15cyclictest28428-21mailstats00:20:221
1149299182,15cyclictest0-21swapper/123:33:291
11492991817,1cyclictest21-21ksoftirqd/120:11:081
11492991816,1cyclictest21-21ksoftirqd/120:19:341
11492991816,1cyclictest0-21swapper/100:05:061
11492991814,3cyclictest3991-21H222:10:211
11492991814,3cyclictest3989-21H222:10:211
11492991814,3cyclictest3979-21H222:10:211
1149299180,3cyclictest22007-21cut21:20:211
1149299180,2cyclictest4099-21H222:10:211
1149299180,2cyclictest3987-21H222:10:211
1149299180,2cyclictest3987-21H222:10:211
1149299180,2cyclictest3985-21H222:10:211
1149299180,2cyclictest3983-21H222:10:211
1149299180,2cyclictest3979-21H222:10:211
1149299180,2cyclictest3976-21H222:10:211
1149299180,16cyclictest3976-21H222:10:211
11491991816,1cyclictest9-21ksoftirqd/021:33:330
11491991815,2cyclictest26616-21tlsmgr23:52:000
11491991814,3cyclictest3985-21H222:10:210
11491991814,3cyclictest3983-21H222:10:210
1149199181,2cyclictest3976-21H222:10:210
1149199180,17cyclictest3989-21H222:10:210
1149199180,17cyclictest3268-21grep19:50:200
1149199180,17cyclictest18642-21nfsd419:20:190
1149199180,16cyclictest3991-21H222:10:210
1149199180,16cyclictest3991-21H222:10:210
1149199180,16cyclictest3987-21H222:10:210
1149199180,16cyclictest29851-21latency_hist23:30:000
1149199180,15cyclictest4099-21H222:10:210
11493991715,1cyclictest28-21ksoftirqd/222:08:202
11493991715,1cyclictest0-21swapper/221:36:282
11493991714,2cyclictest4410-21ntp_offset00:35:202
11493991714,2cyclictest3991-21H222:10:212
11493991714,2cyclictest3989-21H222:10:212
11493991714,2cyclictest3987-21H222:10:212
11493991714,2cyclictest3987-21H222:10:212
11493991714,2cyclictest3985-21H222:10:212
11493991714,2cyclictest3981-21H222:10:212
11493991714,2cyclictest3981-21H222:10:212
11493991714,2cyclictest3976-21H222:10:212
11493991714,2cyclictest28115-21timerwakeupswit22:25:212
11493991714,2cyclictest25909-21awk20:30:182
11493991714,2cyclictest24757-21grep22:20:192
11493991714,2cyclictest21769-21sed22:15:182
11493991714,2cyclictest21769-21sed22:15:172
11493991714,2cyclictest20053-21nfsd420:20:192
11493991714,2cyclictest10905-21grep22:55:132
1149399171,15cyclictest4592chrt23:34:532
1149399170,2cyclictest6257-21cpuspeed_turbos21:50:172
1149399170,2cyclictest6257-21cpuspeed_turbos21:50:162
1149399170,2cyclictest3987-21H222:10:212
1149399170,2cyclictest3976-21H222:10:212
1149399170,2cyclictest18591-21kernelversion22:10:182
1149399170,2cyclictest14504-21snapd00:15:272
1149399170,16cyclictest8310-21tr22:50:192
1149399170,16cyclictest3991-21H222:10:212
1149399170,16cyclictest3983-21H222:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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