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2025-11-07 - 18:00
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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 Fri Nov 07, 2025 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27637992621,2cyclictest18818-21nfsd412:30:191
27636992515,5cyclictest0-21swapper/009:35:010
2763699230,5cyclictest0-21swapper/008:13:200
27637992213,5cyclictest0-21swapper/107:10:201
27637992114,5cyclictest3193-21grep09:15:141
27636992114,6cyclictest0-21swapper/009:18:400
2763899203,2cyclictest4532-21H212:26:332
2763899200,2cyclictest4523-21H212:26:332
2763799204,15cyclictest0-21swapper/108:45:141
2763699204,1cyclictest0-21swapper/008:24:580
27636992015,5cyclictest0-21swapper/011:35:000
2763899192,1cyclictest0-21swapper/210:30:422
27638991915,3cyclictest0-21swapper/208:20:192
27638991910,0cyclictest0-21swapper/210:55:572
2763899190,2cyclictest4532-21H212:26:332
2763899190,2cyclictest4532-21H212:26:332
2763899190,17cyclictest4534-21H212:26:332
2763799190,16cyclictest4581-21H212:26:331
2763799190,16cyclictest4523-21H212:26:331
2763799190,16cyclictest4523-21H212:26:331
2763699192,3cyclictest0-21swapper/009:01:330
27636991916,2cyclictest0-21swapper/007:51:060
27636991914,2cyclictest4581-21H212:26:330
2763699190,2cyclictest4593-21H212:26:330
2763699190,2cyclictest4581-21H212:26:330
2763699190,2cyclictest4536-21H212:26:330
2763699190,17cyclictest4151-21munin-run07:25:000
2763899182,15cyclictest0-21swapper/212:10:142
27638991814,3cyclictest4593-21H212:26:332
27638991814,3cyclictest4538-21H212:26:332
27638991814,3cyclictest4532-21H212:26:332
27638991814,2cyclictest4526-21H212:26:332
27638991813,3cyclictest3754-21fschecks_count09:15:162
2763899181,2cyclictest4534-21H212:26:332
2763899181,1cyclictest0-21swapper/212:15:182
2763899180,2cyclictest4593-21H212:26:332
2763899180,2cyclictest4532-21H212:26:332
2763899180,2cyclictest4155-21cpuspeed_turbos11:10:162
2763899180,17cyclictest4538-21H212:26:332
2763899180,17cyclictest4534-21H212:26:332
2763899180,17cyclictest4523-21H212:26:332
2763899180,16cyclictest4532-21H212:26:332
2763799183,1cyclictest0-21swapper/110:55:401
27637991816,1cyclictest0-21swapper/111:05:201
27637991815,2cyclictest11412-21idleruntime10:25:181
2763799180,3cyclictest18775-21taskset07:50:021
2763799180,2cyclictest4534-21H212:26:331
2763799180,2cyclictest4534-21H212:26:331
2763799180,2cyclictest4528-21H212:26:331
2763799180,15cyclictest4523-21H212:26:331
27636991814,3cyclictest4593-21H212:26:330
2763699181,2cyclictest4536-21H212:26:330
2763699180,2cyclictest4532-21H212:26:330
2763699180,2cyclictest4528-21H212:26:330
2763699180,2cyclictest4526-21H212:26:330
2763699180,2cyclictest4523-21H212:26:330
2763699180,17cyclictest4581-21H212:26:330
2763699180,17cyclictest4538-21H212:26:330
2763699180,17cyclictest4532-21H212:26:330
2763699180,17cyclictest4532-21H212:26:330
2763699180,16cyclictest1798-21systemd08:05:080
2763699180,15cyclictest4532-21H212:26:330
27638991715,1cyclictest4526-21H212:26:332
27638991715,1cyclictest0-21swapper/212:25:132
27638991715,1cyclictest0-21swapper/208:25:162
27638991714,2cyclictest6272-21nfsd407:25:222
27638991714,2cyclictest4538-21H212:26:332
27638991714,2cyclictest4534-21H212:26:332
27638991714,2cyclictest4532-21H212:26:332
27638991714,2cyclictest4532-21H212:26:332
27638991714,2cyclictest4528-21H212:26:332
27638991714,2cyclictest4526-21H212:26:332
27638991714,2cyclictest4523-21H212:26:332
27638991714,2cyclictest30018-21snapd07:17:192
27638991714,2cyclictest21341-21grep11:40:142
27638991714,2cyclictest17804-21nfsd410:35:202
27638991713,2cyclictest0-21swapper/209:30:192
2763899171,15cyclictest4523-21H212:26:332
2763899171,15cyclictest0-21swapper/210:43:482
2763899170,2cyclictest7229-21grep09:20:182
2763899170,2cyclictest4581-21H212:26:332
2763899170,2cyclictest4528-21H212:26:332
2763899170,2cyclictest4523-21H212:26:332
2763899170,2cyclictest30840-21chrt10:01:232
2763899170,2cyclictest23970-21apt-config08:55:012
2763899170,2cyclictest23445-21nfsd410:45:182
2763899170,2cyclictest22296-21expr07:55:152
2763899170,2cyclictest22086-21timerandwakeup12:35:222
2763899170,2cyclictest11312-21threads11:20:222
2763899170,1cyclictest0-21swapper/212:30:192
2763899170,16cyclictest8385-21cat07:30:172
2763899170,16cyclictest4536-21H212:26:332
2763899170,16cyclictest4534-21H212:26:332
2763899170,16cyclictest4526-21H212:26:332
2763899170,16cyclictest30353-21ls11:55:152
2763899170,16cyclictest18235-21if_eno109:40:172
2763899170,16cyclictest16120-21/usr/sbin/munin07:45:142
2763899170,16cyclictest10966-21expr07:35:142
2763899170,15cyclictest0-21swapper/208:35:142
2763799172,1cyclictest0-21swapper/109:01:351
27637991715,1cyclictest21962-21missed_timers08:50:181
27637991715,1cyclictest0-21swapper/108:40:191
27637991715,1cyclictest0-21swapper/107:15:201
27637991714,2cyclictest8951-21smtp11:17:371
27637991714,2cyclictest7969-21/usr/sbin/munin08:25:191
27637991714,2cyclictest4593-21H212:26:331
27637991714,2cyclictest4581-21H212:26:331
27637991714,2cyclictest4532-21H212:26:331
27637991714,2cyclictest4523-21H212:26:331
27637991714,2cyclictest32762-21nfsd410:05:181
27637991714,2cyclictest31656-21taskset09:07:311
27637991714,2cyclictest30483-21fschecks_count11:55:151
27637991714,2cyclictest19510-21cat11:35:231
27637991714,2cyclictest19510-21cat11:35:221
27637991713,3cyclictest4534-21H212:26:331
27637991712,2cyclictest4593-21H212:26:331
2763799171,15cyclictest4523-21H212:26:331
2763799170,2cyclictest5468-21ntp_kernel_err11:10:221
2763799170,2cyclictest4581-21H212:26:331
2763799170,2cyclictest4538-21H212:26:331
2763799170,2cyclictest4532-21H212:26:331
2763799170,2cyclictest4528-21H212:26:331
2763799170,2cyclictest4528-21H212:26:331
2763799170,2cyclictest4523-21H212:26:331
2763799170,2cyclictest22879-21chrt11:43:501
2763799170,2cyclictest1304-21lxd10:21:051
2763799170,1cyclictest0-21swapper/112:23:151
2763799170,16cyclictest9244-21proc_pri07:30:231
2763799170,16cyclictest4593-21H212:26:331
2763799170,16cyclictest4581-21H212:26:331
2763799170,16cyclictest4581-21H212:26:331
2763799170,16cyclictest454-21plymouthd08:10:141
2763799170,16cyclictest4538-21H212:26:331
2763799170,16cyclictest4536-21H212:26:331
2763799170,16cyclictest4528-21H212:26:331
2763799170,16cyclictest4526-21H212:26:331
2763799170,16cyclictest4526-21H212:26:331
2763799170,16cyclictest4526-21H212:26:331
2763799170,16cyclictest27922-21cron08:05:011
2763799170,16cyclictest23740-21expr11:45:161
2763799170,16cyclictest14446-21cat09:35:011
2763799170,16cyclictest10858-21grep12:15:201
27636991715,1cyclictest0-21swapper/012:05:220
27636991714,2cyclictest4538-21H212:26:330
27636991714,2cyclictest4538-21H212:26:330
27636991714,2cyclictest4532-21H212:26:330
27636991714,2cyclictest4100-21python307:25:020
27636991714,2cyclictest30975-21expr07:15:140
27636991714,2cyclictest18983-21awk11:35:200
27636991714,2cyclictest18983-21awk11:35:200
27636991713,3cyclictest4536-21H212:26:330
27636991713,3cyclictest4523-21H212:26:330
27636991713,3cyclictest0-21swapper/009:20:180
27636991712,4cyclictest4532-21H212:26:330
2763699170,2cyclictest9714-21cat12:15:140
2763699170,2cyclictest6388-21apt-config12:10:040
2763699170,2cyclictest4581-21H212:26:330
2763699170,2cyclictest4536-21H212:26:330
2763699170,2cyclictest4528-21H212:26:330
2763699170,2cyclictest31777-21timerwakeupswit11:55:230
2763699170,2cyclictest25194-21tail08:55:190
2763699170,2cyclictest16776-21sed09:38:590
2763699170,2cyclictest12204-21pzem_power10:25:220
2763699170,16cyclictest881-21avahi-daemon11:20:210
2763699170,16cyclictest4581-21H212:26:330
2763699170,16cyclictest4581-21H212:26:330
2763699170,16cyclictest4536-21H212:26:330
2763699170,16cyclictest4534-21H212:26:330
2763699170,16cyclictest4532-21H212:26:330
2763699170,16cyclictest4528-21H212:26:330
2763699170,16cyclictest4528-21H212:26:330
2763699170,16cyclictest4526-21H212:26:330
2763699170,16cyclictest3441-21gsd-color11:25:210
2763699170,16cyclictest31723-21cut11:00:210
2763699170,16cyclictest30018-21snapd10:56:590
2763699170,16cyclictest26058-21cat08:00:170
2763699170,16cyclictest23316-21apache_accesses09:50:100
2763699170,16cyclictest23316-21apache_accesses09:50:100
2763699170,16cyclictest19851-21chrt12:34:260
2763699170,16cyclictest17979-21expr09:40:150
2763699170,16cyclictest1259-21egrep08:15:140
2763699170,16cyclictest0-21swapper/010:21:480
2763699170,16cyclictest0-21swapper/007:30:150
27638991614,1cyclictest0-21swapper/212:00:142
27638991614,1cyclictest0-21swapper/212:00:142
27638991614,1cyclictest0-21swapper/209:35:202
27638991614,1cyclictest0-21swapper/209:25:022
27638991614,1cyclictest0-21swapper/209:25:022
27638991614,1cyclictest0-21swapper/208:30:162
2763899160,1cyclictest0-21swapper/211:35:162
2763899160,1cyclictest0-21swapper/211:35:152
2763899160,1cyclictest0-21swapper/208:15:172
2763899160,15cyclictest0-21swapper/212:05:202
27637991614,1cyclictest4523-21H212:26:331
27637991614,1cyclictest0-21swapper/110:40:131
27637991614,1cyclictest0-21swapper/110:00:131
27637991614,1cyclictest0-21swapper/108:00:021
27637991612,3cyclictest4532-21H212:26:331
2763799161,1cyclictest0-21swapper/108:20:171
2763799160,2cyclictest16586-21chrt11:30:201
2763799160,1cyclictest0-21swapper/108:30:141
2763799160,1cyclictest0-21swapper/107:20:131
2763799160,15cyclictest5110-21cpu07:25:171
2763799160,15cyclictest0-21swapper/111:20:141
2763799160,15cyclictest0-21swapper/109:20:181
27636991614,1cyclictest8278-21head08:25:200
27636991614,1cyclictest0-21swapper/007:55:020
2763699160,1cyclictest9934-21cpuspeed_turbos08:30:140
2763699160,15cyclictest4581-21H212:26:330
2763699160,15cyclictest0-21swapper/012:20:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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