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2025-12-29 - 07:36
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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 Mon Dec 29, 2025 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1769499220,21cyclictest843-21systemd-network21:06:252
1769499220,18cyclictest0-21swapper/222:10:242
1768799221,19cyclictest3985-21H222:10:211
1769499214,16cyclictest0-21swapper/223:52:512
1768599211,13cyclictest0-21swapper/020:32:550
1768599211,13cyclictest0-21swapper/020:32:550
1768599210,20cyclictest0-21swapper/021:56:360
17694992014,1cyclictest0-21swapper/222:30:172
1768599202,15cyclictest0-21swapper/020:45:150
1769499193,10cyclictest3250-21apt-config21:35:012
1769499192,2cyclictest4035-21H222:10:212
17694991916,1cyclictest0-21swapper/221:44:422
1769499190,2cyclictest3979-21H222:10:212
1769499190,17cyclictest0-21swapper/221:45:212
1769499190,16cyclictest3991-21H222:10:212
1769499190,16cyclictest3979-21H222:10:212
1768799192,16cyclictest18010-21chrt23:51:261
1768799192,16cyclictest0-21swapper/100:37:511
1768799190,16cyclictest3989-21H222:10:211
1768599193,15cyclictest0-21swapper/022:02:050
1768599192,16cyclictest19925-21nfsd423:55:180
17685991915,3cyclictest0-21swapper/000:39:190
1768599190,16cyclictest3985-21H222:10:210
1769499182,15cyclictest0-21swapper/222:29:062
17694991815,2cyclictest3981-21H222:10:212
17694991815,2cyclictest10449-21munin-run23:40:012
17694991814,3cyclictest4035-21H222:10:212
17694991813,4cyclictest0-21swapper/200:05:212
1769499181,16cyclictest2866-21kernelversion20:35:182
1769499180,3cyclictest3985-21H222:10:212
1769499180,2cyclictest3987-21H222:10:212
1769499180,2cyclictest3985-21H222:10:212
1769499180,2cyclictest3981-21H222:10:212
1769499180,1cyclictest3979-21H222:10:212
1769499180,16cyclictest3989-21H222:10:212
17687991816,1cyclictest0-21swapper/122:35:181
17687991816,1cyclictest0-21swapper/121:35:051
17687991815,1cyclictest0-21swapper/120:38:451
17687991814,3cyclictest4099-21H222:10:211
17687991814,3cyclictest3981-21H222:10:211
17687991814,3cyclictest3979-21H222:10:211
17687991813,3cyclictest0-21swapper/119:44:151
1768799180,3cyclictest4099-21H222:10:211
1768799180,2cyclictest3983-21H222:10:211
1768799180,18cyclictest0-21swapper/123:21:591
1768799180,16cyclictest26439-21nfsd423:10:191
1768799180,16cyclictest1516-21lxd20:20:471
1768799180,15cyclictest3985-21H222:10:211
17685991816,1cyclictest9-21ksoftirqd/023:21:220
17685991814,3cyclictest3989-21H222:10:210
17685991814,2cyclictest6457-21nfsd420:40:170
17685991813,4cyclictest455-21plymouthd22:50:150
1768599181,16cyclictest3987-21H222:10:210
17685991811,6cyclictest28629-21latency_hist19:30:000
1768599180,3cyclictest3983-21H222:10:210
1768599180,2cyclictest3983-21H222:10:210
1768599180,2cyclictest3981-21H222:10:210
1768599180,17cyclictest843-21systemd-network19:43:240
1768599180,17cyclictest20340-21if_enp1s023:00:200
1768599180,15cyclictest4099-21H222:10:210
1768599180,15cyclictest3979-21H222:10:210
17694991715,1cyclictest4566-21cpuspeed_turbos23:30:172
17694991715,1cyclictest0-21swapper/220:10:192
17694991715,1cyclictest0-21swapper/219:45:132
17694991714,2cyclictest3985-21H222:10:212
17694991714,2cyclictest3976-21H222:10:212
17694991714,2cyclictest3976-21H222:10:212
17694991714,2cyclictest24182-21smartctl19:20:152
17694991714,2cyclictest1477-21snapd20:27:392
1769499171,15cyclictest64352chrt00:25:552
1769499170,2cyclictest843-21systemd-network23:45:122
1769499170,2cyclictest3989-21H222:10:212
1769499170,2cyclictest3983-21H222:10:212
1769499170,2cyclictest3979-21H222:10:212
1769499170,2cyclictest30430-21pzem_current19:30:202
1769499170,2cyclictest1477-21snapd20:30:092
1769499170,2cyclictest1477-21snapd20:30:082
1769499170,2cyclictest12245-21sed23:40:212
1769499170,16cyclictest5864-21cpuspeed_turbos22:35:142
1769499170,16cyclictest5201-21grep20:40:132
1769499170,16cyclictest4035-21H222:10:212
1769499170,16cyclictest3985-21H222:10:212
1769499170,16cyclictest3983-21H222:10:212
1769499170,16cyclictest3983-21H222:10:212
1769499170,16cyclictest3981-21H222:10:212
1769499170,16cyclictest3981-21H222:10:212
1769499170,16cyclictest27116-21find21:20:122
1769499170,16cyclictest25919-21pzem_voltage21:15:222
1769499170,16cyclictest19049-21expr23:55:142
1769499170,16cyclictest1486-21snapd22:50:222
1769499170,16cyclictest13418-21cut20:55:152
1769499170,16cyclictest0-21swapper/219:10:222
1769499170,15cyclictest3983-21H222:10:212
1769499170,15cyclictest3983-21H222:10:212
1768799172,14cyclictest0-21swapper/120:46:201
17687991715,1cyclictest30118-21fschecks_time22:20:151
17687991715,1cyclictest14317-21expr22:50:111
17687991715,1cyclictest0-21swapper/100:05:421
17687991714,2cyclictest8930-21wc21:40:191
17687991714,2cyclictest5252-21cron22:35:001
17687991714,2cyclictest4035-21H222:10:211
17687991714,2cyclictest3988-21H222:10:211
17687991714,2cyclictest3985-21H222:10:211
17687991714,2cyclictest3976-21H222:10:211
17687991714,2cyclictest3976-21H222:10:211
17687991714,2cyclictest3450-21gsd-color19:50:121
17687991714,2cyclictest31488-21expr21:25:201
17687991714,2cyclictest28783-21switchtime21:20:221
17687991714,2cyclictest27472-21sort22:15:171
17687991714,2cyclictest27472-21sort22:15:171
17687991714,2cyclictest24638-21grep19:20:171
17687991714,2cyclictest23211-21chrt22:07:311
17687991714,2cyclictest20873-21chrt21:07:241
17687991714,2cyclictest18314-21cat19:10:141
17687991714,2cyclictest1597-21irqstats21:30:171
17687991714,2cyclictest1030-21grep22:25:181
17687991713,3cyclictest3985-21H222:10:211
1768799171,15cyclictest15846-21cut21:00:011
1768799170,2cyclictest9921-21grep22:40:181
1768799170,2cyclictest4099-21H222:10:211
1768799170,2cyclictest3983-21H222:10:211
1768799170,2cyclictest13297-21missed_timers19:55:191
1768799170,2cyclictest11553-21tr22:45:141
1768799170,2cyclictest10093-21cron23:40:011
1768799170,1cyclictest0-21swapper/100:34:441
1768799170,16cyclictest4099-21H222:10:211
1768799170,16cyclictest3976-21H222:10:211
1768799170,16cyclictest20660-21grep20:10:151
1768799170,16cyclictest1521-21lxd19:34:471
1768799170,16cyclictest10824-21fschecks_count21:45:171
1768799170,16cyclictest1060-21thermald23:38:501
1768799170,16cyclictest0-21swapper/121:50:061
1768799170,16cyclictest0-21swapper/120:17:001
1768799170,16cyclictest0-21swapper/100:10:161
17685991715,1cyclictest107722sleep022:43:260
17685991715,1cyclictest0-21swapper/000:00:530
17685991715,1cyclictest0-21swapper/000:00:530
17685991714,2cyclictest9001-21apt19:50:130
17685991714,2cyclictest4099-21H222:10:210
17685991714,2cyclictest3985-21H222:10:210
17685991714,2cyclictest24919-21cat21:15:150
17685991714,2cyclictest23385-21latency_hist19:20:010
17685991714,2cyclictest20415-21wc21:05:250
17685991714,2cyclictest1244-21cut21:30:150
17685991714,2cyclictest1035-21thermald21:35:210
17685991714,2cyclictest10110-21munin-run23:40:000
17685991714,2cyclictest0-21swapper/022:10:200
17685991714,1cyclictest0-21swapper/019:45:230
1768599170,2cyclictest3979-21H222:10:210
1768599170,2cyclictest2503-21fschecks_count20:35:160
1768599170,16cyclictest7065-21date00:30:000
1768599170,16cyclictest5603-21ls23:30:210
1768599170,16cyclictest4256-21grep22:30:170
1768599170,16cyclictest3989-21H222:10:210
1768599170,16cyclictest3985-21H222:10:210
1768599170,16cyclictest3983-21H222:10:210
1768599170,16cyclictest3983-21H222:10:210
1768599170,16cyclictest30792-21expr21:25:160
1768599170,16cyclictest29858-21expr22:20:130
1768599170,16cyclictest29518-21python321:25:010
1768599170,16cyclictest28255-21pzem_voltage22:15:210
1768599170,16cyclictest28255-21pzem_voltage22:15:210
1768599170,16cyclictest2797-21sort00:20:230
1768599170,16cyclictest23456-21/usr/sbin/munin19:20:190
1768599170,16cyclictest16860-21if_enp1s021:00:180
1768599170,16cyclictest12236-21kernelversion22:45:170
1768599170,16cyclictest11779-21awk20:50:170
17694991614,1cyclictest0-21swapper/223:20:232
17694991614,1cyclictest0-21swapper/223:00:192
17694991614,1cyclictest0-21swapper/221:10:222
17694991614,1cyclictest0-21swapper/219:15:162
17694991613,2cyclictest3981-21H222:10:212
17694991613,2cyclictest2166-21which23:25:152
1769499160,2cyclictest4099-21H222:10:212
1769499160,1cyclictest0-21swapper/219:25:122
1769499160,15cyclictest3979-21H222:10:212
1769499160,15cyclictest30111-21fschecks_count22:20:152
1769499160,15cyclictest0-21swapper/221:50:172
1769499160,15cyclictest0-21swapper/221:00:162
17687991615,1cyclictest0-21swapper/121:00:311
17687991614,1cyclictest4202-21sh00:25:011
17687991614,1cyclictest0-21swapper/121:10:191
17687991614,1cyclictest0-21swapper/120:40:131
17687991614,1cyclictest0-21swapper/100:00:171
17687991614,1cyclictest0-21swapper/100:00:171
17687991613,2cyclictest455-21plymouthd23:30:191
17687991613,2cyclictest3976-21H222:10:211
1768799160,2cyclictest24548-21expr22:10:161
1768799160,15cyclictest195922chrt20:05:251
1768799160,15cyclictest1486-21snapd20:25:091
1768799160,15cyclictest0-21swapper/122:55:181
17685991614,1cyclictest0-21swapper/023:45:160
17685991614,1cyclictest0-21swapper/022:35:110
17685991614,1cyclictest0-21swapper/020:55:180
17685991613,2cyclictest3985-21H222:10:210
17685991613,2cyclictest32446-21cat22:25:140
17685991613,2cyclictest26113-21ntpq00:05:180
1768599160,2cyclictest17346-21ntpq23:50:200
1768599160,15cyclictest32479-21expr19:35:150
1768599160,15cyclictest22960-21smartctl23:05:160
1768599160,15cyclictest21893-21ntp_kernel_err20:10:200
1768599160,15cyclictest17915-21seq20:05:140
1768599160,15cyclictest0-21swapper/022:05:140
1768599160,15cyclictest0-21swapper/021:40:130
1768599160,15cyclictest0-21swapper/020:20:080
1769499150,14cyclictest0-21swapper/221:55:012
17685991513,1cyclictest0-21swapper/021:45:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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