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2025-12-18 - 14:28
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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 376 highest latencies:
System rackdslot0.osadl.org (updated Thu Dec 18, 2025 00:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24208992523,1cyclictest9-21ksoftirqd/022:35:000
2421799240,23cyclictest19787-21perf22:50:012
2420899240,19cyclictest0-21swapper/000:30:000
2420899240,19cyclictest0-21swapper/000:29:590
2421799230,18cyclictest0-21swapper/223:35:142
2421299230,5cyclictest0-21swapper/120:55:111
2421799222,17cyclictest0-21swapper/220:55:202
2421799220,4cyclictest3986-21H222:10:212
2421799210,3cyclictest0-21swapper/221:03:282
2421799202,17cyclictest0-21swapper/220:20:442
2421799200,5cyclictest399-20systemd-journal23:03:022
2421799200,16cyclictest0-21swapper/220:03:462
2421799200,16cyclictest0-21swapper/220:03:462
2421299203,16cyclictest0-21swapper/119:21:321
2420899200,16cyclictest0-21swapper/021:28:340
2421799193,15cyclictest11943-21head20:40:172
2421799193,15cyclictest0-21swapper/223:10:132
2421799192,2cyclictest23920-21cat22:55:172
2421799192,16cyclictest0-21swapper/219:33:592
2421799192,15cyclictest0-21swapper/221:58:392
24217991917,1cyclictest11698-21sed19:45:012
24217991916,2cyclictest28670-21cat20:15:022
24217991916,2cyclictest0-21swapper/223:05:142
24217991916,2cyclictest0-21swapper/223:05:132
2421799191,17cyclictest21502-21nfsd422:50:172
2421799191,17cyclictest0-21swapper/219:19:002
2421799190,18cyclictest0-21swapper/219:54:322
2421799190,17cyclictest981-21cpuspeed_turbos21:20:132
2421799190,17cyclictest981-21cpuspeed_turbos21:20:132
24212991915,3cyclictest0-21swapper/100:11:411
2421299190,16cyclictest4035-21H222:10:211
2421299190,16cyclictest3983-21H222:10:211
2420899193,15cyclictest9251-21grep23:25:210
24208991917,1cyclictest9-21ksoftirqd/020:07:390
24208991917,1cyclictest9-21ksoftirqd/019:27:210
24208991917,1cyclictest3989-21H222:10:210
24208991916,2cyclictest3987-21H222:10:210
24208991916,2cyclictest22876-21needreboot23:50:150
24208991915,2cyclictest31230-21nfsd419:20:180
24208991914,3cyclictest0-21swapper/022:15:140
2420899190,2cyclictest3985-21H222:10:210
2420899190,18cyclictest0-21swapper/019:33:410
2420899190,17cyclictest19614-21turbostat20:00:010
2420899190,16cyclictest3979-21H222:10:210
2421799183,1cyclictest28-21ksoftirqd/219:48:582
2421799182,1cyclictest258962chrt22:03:392
2421799182,1cyclictest14026-21cut20:45:132
2421799182,15cyclictest0-21swapper/200:04:532
24217991816,1cyclictest3983-21H222:10:212
24217991816,1cyclictest0-21swapper/200:37:202
24217991816,1cyclictest0-21swapper/200:30:122
24217991815,2cyclictest23039-21nfsd423:50:162
24217991814,3cyclictest28891-21latency_hist22:10:012
24217991814,3cyclictest11472-21munin-run22:35:012
2421799181,3cyclictest0-21swapper/223:57:552
24217991813,3cyclictest3983-21H222:10:212
2421799181,16cyclictest9058-21pzem_voltage23:25:192
2421799181,16cyclictest4763-21idleruntime-cro20:30:002
2421799181,16cyclictest3992-21H222:10:212
2421799180,2cyclictest4099-21H222:10:212
2421799180,17cyclictest4099-21H222:10:212
2421799180,17cyclictest3985-21H222:10:212
2421799180,17cyclictest18060-21cat21:50:012
2421799180,17cyclictest18060-21cat21:50:002
2421799180,17cyclictest0-21swapper/223:45:232
2421799180,17cyclictest0-21swapper/221:05:222
2421799180,17cyclictest0-21swapper/220:35:192
2421799180,15cyclictest3983-21H222:10:212
2421799180,15cyclictest0-21swapper/219:35:132
2421299182,15cyclictest266822chrt23:59:031
2421299182,15cyclictest21-21ksoftirqd/120:18:101
24212991816,1cyclictest21-21ksoftirqd/119:15:341
24212991816,1cyclictest11869-21missed_timers20:40:181
24212991816,1cyclictest0-21swapper/120:34:001
24212991815,1cyclictest0-21swapper/121:43:321
24212991814,3cyclictest4099-21H222:10:211
24212991814,3cyclictest4099-21H222:10:211
2421299181,2cyclictest9050-21needreboot20:35:191
2421299181,1cyclictest3976-21H222:10:211
2421299180,2cyclictest3976-21H222:10:211
2421299180,16cyclictest8355-21sshd22:30:021
2420899182,15cyclictest0-21swapper/000:30:270
24208991816,1cyclictest0-21swapper/020:30:130
24208991815,2cyclictest3989-21H222:10:210
24208991815,2cyclictest3989-21H222:10:210
24208991815,2cyclictest0-21swapper/000:20:330
24208991815,1cyclictest0-21swapper/023:42:020
24208991814,3cyclictest3981-21H222:10:210
24208991814,3cyclictest0-21swapper/021:03:590
2420899181,3cyclictest0-21swapper/021:56:290
2420899181,16cyclictest0-21swapper/021:41:540
2420899180,17cyclictest3985-21H222:10:210
2420899180,16cyclictest2978-21tail23:15:180
2420899180,16cyclictest15235-21grep20:45:170
24217991714,2cyclictest5001-21latency21:25:172
24217991714,2cyclictest4035-21H222:10:212
24217991714,2cyclictest29798-21expr22:10:132
24217991714,2cyclictest1347-21lxd19:56:242
2421799171,1cyclictest0-21swapper/221:35:212
2421799171,15cyclictest2955-21cat19:30:012
2421799170,2cyclictest7725-21cstates00:20:132
2421799170,2cyclictest30896-21dpkg20:16:312
2421799170,2cyclictest17019-21sed23:40:132
2421799170,2cyclictest1691-21users22:15:212
2421799170,16cyclictest7046-21apt-config21:30:012
2421799170,16cyclictest6148-21df22:25:142
2421799170,16cyclictest5507-21hddtemp_smartct23:20:162
2421799170,16cyclictest5445-21cstates20:30:132
2421799170,16cyclictest30881-21chrt00:05:132
2421799170,16cyclictest24524-21grep19:10:102
2421799170,16cyclictest23113-21expr20:05:142
2421799170,16cyclictest18596-21cstates21:50:122
2421799170,16cyclictest16895-21cstates20:50:142
2421799170,16cyclictest12461-21fschecks_count22:35:142
2421799170,16cyclictest10415-21cstates00:25:142
2421799170,16cyclictest10415-21cstates00:25:142
2421799170,16cyclictest0-21swapper/223:30:142
24212991715,1cyclictest3297-21taskset21:24:291
24212991715,1cyclictest3297-21taskset21:24:281
24212991715,1cyclictest0-21swapper/100:00:261
24212991714,2cyclictest4750-21latency_hist23:20:011
24212991714,2cyclictest3981-21H222:10:211
24212991714,2cyclictest27487-21ls23:00:221
24212991714,2cyclictest23067-21cat20:05:151
24212991714,2cyclictest19408-21vmstat22:45:231
24212991714,2cyclictest15784-21nfsd419:50:181
24212991714,2cyclictest1522-21lxd21:54:481
24212991714,2cyclictest13380-21find23:35:121
24212991714,2cyclictest11278-21fschecks_count23:30:151
2421299171,15cyclictest10421-21switchtime22:30:211
2421299171,15cyclictest0-21swapper/122:15:171
2421299170,2cyclictest4035-21H222:10:211
2421299170,2cyclictest3985-21H222:10:211
2421299170,2cyclictest24483-21cut21:05:011
2421299170,2cyclictest22472-21latency_hist20:05:011
2421299170,2cyclictest22472-21latency_hist20:05:011
2421299170,2cyclictest22059-21sort21:55:151
2421299170,2cyclictest18679-21ntpq19:55:161
2421299170,2cyclictest1398-21ls23:15:011
2421299170,2cyclictest13049-21netstat22:35:181
2421299170,1cyclictest3979-21H222:10:211
2421299170,16cyclictest7037-21awk00:20:001
2421299170,16cyclictest4035-21H222:10:211
2421299170,16cyclictest3991-21H222:10:211
2421299170,16cyclictest3989-21H222:10:211
2421299170,16cyclictest3987-21H222:10:211
2421299170,16cyclictest3985-21H222:10:211
2421299170,16cyclictest3985-21H222:10:211
2421299170,16cyclictest3979-21H222:10:211
2421299170,16cyclictest3976-21H222:10:211
2421299170,16cyclictest24957-21awk22:00:181
2421299170,16cyclictest22753-21latency_hist22:55:011
2421299170,16cyclictest16722-21nfsd421:45:171
2421299170,16cyclictest16722-21nfsd421:45:171
2421299170,16cyclictest1133-21snapd20:26:321
24208991715,1cyclictest9-21ksoftirqd/023:10:490
24208991715,1cyclictest3989-21H222:10:210
24208991714,2cyclictest4099-21H222:10:210
24208991714,2cyclictest4099-21H222:10:210
24208991714,2cyclictest3989-21H222:10:210
24208991714,2cyclictest31752-21awk21:15:170
24208991714,2cyclictest17733-21chrt00:38:030
24208991714,2cyclictest13173-21python320:45:000
24208991714,2cyclictest10801-21/usr/sbin/munin21:35:170
24208991714,2cyclictest0-21swapper/022:45:010
2420899171,15cyclictest152192chrt23:35:240
24208991710,3cyclictest0-21swapper/022:50:110
2420899170,2cyclictest9043-21strings20:35:180
2420899170,2cyclictest7985-21python322:30:000
2420899170,2cyclictest4940-21expr00:15:140
2420899170,2cyclictest3991-21H222:10:210
2420899170,2cyclictest3985-21H222:10:210
2420899170,2cyclictest27581-21needreboot22:05:180
2420899170,2cyclictest15971-21expr21:45:130
2420899170,2cyclictest15971-21expr21:45:130
2420899170,1cyclictest0-21swapper/023:24:110
2420899170,1cyclictest0-21swapper/022:22:380
2420899170,16cyclictest878-21in:imuxsock20:10:020
2420899170,16cyclictest455-21plymouthd20:25:140
2420899170,16cyclictest4035-21H222:10:210
2420899170,16cyclictest3981-21H222:10:210
2420899170,16cyclictest3979-21H222:10:210
2420899170,16cyclictest31914-21cut22:15:000
2420899170,16cyclictest29317-21cut23:05:170
2420899170,16cyclictest29317-21cut23:05:170
2420899170,16cyclictest25631-21/usr/sbin/munin23:00:160
2420899170,16cyclictest0-21swapper/023:48:090
2420899170,16cyclictest0-21swapper/000:11:480
2420899170,16cyclictest0-21swapper/000:03:030
2420899170,15cyclictest0-21swapper/021:30:220
24212991614,1cyclictest32027-21ls20:20:141
24212991614,1cyclictest0-21swapper/123:40:121
24212991614,1cyclictest0-21swapper/121:25:131
24212991614,1cyclictest0-21swapper/121:05:171
24212991613,2cyclictest5743-21apt-get19:34:311
24212991613,2cyclictest15824-21missed_timers22:40:161
24212991613,2cyclictest13356-21expr00:30:141
2421299160,2cyclictest7745-21sed19:35:211
2421299160,15cyclictest7061-21tar21:30:021
2421299160,15cyclictest29324-21apt-get22:10:121
2421299160,15cyclictest17128-21/usr/sbin/munin00:35:201
2421299160,15cyclictest11612-21ps00:25:201
2421299160,15cyclictest11612-21ps00:25:201
2421299160,15cyclictest0-21swapper/121:35:131
2421299160,15cyclictest0-21swapper/119:40:131
24208991614,1cyclictest29933-21sed20:15:170
24208991614,1cyclictest0-21swapper/021:50:120
24208991614,1cyclictest0-21swapper/021:05:150
24208991613,2cyclictest23711-21taskset22:00:130
2420899160,15cyclictest0-21swapper/023:30:130
2420899160,15cyclictest0-21swapper/022:35:120
2420899160,15cyclictest0-21swapper/019:50:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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