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2026-06-12 - 22:03
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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 highest latencies:
System rackdslot0.osadl.org (updated Fri Jun 12, 2026 12:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1921399254,1cyclictest0-21swapper/212:15:502
1920499251,19cyclictest0-21swapper/009:30:010
1920499251,19cyclictest0-21swapper/009:30:000
1921399240,23cyclictest0-21swapper/208:08:102
1921399240,18cyclictest25155-21tr12:05:132
19204992314,6cyclictest0-21swapper/010:52:510
19213992220,1cyclictest14548-21ntp_kernel_pll_09:50:202
19209992222,0cyclictest0-21swapper/108:10:401
1920999214,11cyclictest20957-21latency_hist10:05:021
1921399204,15cyclictest28-21ksoftirqd/210:57:102
19213992015,3cyclictest0-21swapper/211:40:132
19213992011,5cyclictest0-21swapper/207:42:002
1920999201,15cyclictest715-21perf07:35:011
1920499204,15cyclictest1836-21timerwakeupswit08:30:230
19204992014,5cyclictest0-21swapper/010:18:150
1920499200,15cyclictest0-21swapper/010:15:010
1921399194,1cyclictest0-21swapper/210:42:282
1921399193,1cyclictest28532-21http_loadtime12:10:142
1921399192,16cyclictest24245-21chrt07:16:322
1920999194,1cyclictest0-21swapper/108:06:421
1920999192,16cyclictest0-21swapper/110:59:081
1920999190,2cyclictest3987-21H222:10:211
1920999190,18cyclictest0-21swapper/111:55:471
1920999190,16cyclictest4099-21H222:10:211
1920999190,16cyclictest3989-21H222:10:211
1920999190,16cyclictest3987-21H222:10:211
19204991916,2cyclictest6602-21munin-plugin-st12:30:000
1920499190,18cyclictest0-21swapper/009:59:570
1920499190,17cyclictest3979-21H222:10:210
1921399182,15cyclictest28-21ksoftirqd/208:30:212
1921399182,15cyclictest21911-21grep10:05:132
19213991816,1cyclictest28924-21if_err_lxdbr009:20:182
19213991816,1cyclictest0-21swapper/208:40:142
19213991814,3cyclictest24172-21anvil12:03:562
1921399180,3cyclictest22472-21latency_hist09:10:022
1921399180,17cyclictest3989-21H222:10:212
1921399180,17cyclictest15056-21missed_timers11:45:172
1921399180,16cyclictest4099-21H222:10:212
19209991816,1cyclictest3987-21H222:10:211
19209991816,1cyclictest0-21swapper/110:35:201
19209991814,3cyclictest3989-21H222:10:211
19209991814,3cyclictest3979-21H222:10:211
19209991813,1cyclictest0-21swapper/111:20:231
1920999180,3cyclictest3991-21H222:10:211
1920999180,2cyclictest3981-21H222:10:211
1920999180,2cyclictest3976-21H222:10:211
1920999180,2cyclictest23987-21nvmesmart_nvme009:10:191
1920999180,17cyclictest3989-21H222:10:211
1920999180,15cyclictest3979-21H222:10:211
1920499182,15cyclictest0-21swapper/009:24:250
19204991816,1cyclictest9-21ksoftirqd/011:26:120
19204991815,2cyclictest9265-21nfsd411:35:170
19204991815,2cyclictest9265-21nfsd411:35:170
19204991814,3cyclictest3983-21H222:10:210
1920499181,16cyclictest31958-21smartctl12:15:190
1920499180,3cyclictest1522-21lxd07:58:430
1920499180,2cyclictest4099-21H222:10:210
1920499180,2cyclictest3983-21H222:10:210
1920499180,16cyclictest0-21swapper/008:11:260
1921399172,14cyclictest0-21swapper/212:34:352
1921399172,14cyclictest0-21swapper/212:34:352
19213991715,1cyclictest0-21swapper/207:45:242
19213991714,2cyclictest6128-21kernelversion11:30:162
19213991714,2cyclictest3991-21H222:10:212
19213991714,2cyclictest17457-21/usr/sbin/munin09:55:212
19213991714,2cyclictest14495-21snapd11:15:272
19213991714,2cyclictest11067-21dump-pmu-power08:50:012
19213991714,2cyclictest0-21swapper/208:58:392
19213991714,2cyclictest0-21swapper/208:22:272
19213991713,3cyclictest1521-21lxd09:30:432
1921399171,15cyclictest31638-21if_enp1s007:30:172
1921399170,2cyclictest6632-21cpuspeed_turbos10:35:142
1921399170,2cyclictest4579-21kernelversion10:30:142
1921399170,2cyclictest3987-21H222:10:212
1921399170,2cyclictest24789-21/usr/sbin/munin11:05:172
1921399170,2cyclictest22167-21pzem_current11:00:212
1921399170,2cyclictest2144-21/usr/sbin/munin11:25:152
1921399170,2cyclictest17049-21cpuspeed_turbos09:00:142
1921399170,2cyclictest17049-21cpuspeed_turbos09:00:142
1921399170,2cyclictest13189-21idleruntime10:45:152
1921399170,2cyclictest1100-21snmpd08:10:462
1921399170,2cyclictest10447-21expr07:50:152
1921399170,1cyclictest3450-21gsd-color10:19:032
1921399170,16cyclictest889-21/usr/sbin/munin12:20:162
1921399170,16cyclictest5520-21processes12:25:192
1921399170,16cyclictest5051-21chrt08:36:022
1921399170,16cyclictest455-21plymouthd08:00:132
1921399170,16cyclictest3976-21H222:10:212
1921399170,16cyclictest3707-21master07:20:122
1921399170,16cyclictest31122-21pzem_power08:25:202
1921399170,16cyclictest28555-21cron11:15:002
1921399170,16cyclictest28555-21cron11:15:002
1921399170,16cyclictest20125-21fschecks_count07:10:152
1921399170,16cyclictest16741-21/usr/sbin/munin11:50:122
1921399170,16cyclictest1377-21lxd10:50:432
1921399170,16cyclictest12664-21apt-get07:55:102
1921399170,16cyclictest10532-21python311:40:012
1921399170,16cyclictest10532-21python311:40:002
1921399170,16cyclictest10342-21/usr/sbin/munin12:35:132
1921399170,16cyclictest0-21swapper/211:21:562
1920999172,15cyclictest21-21ksoftirqd/112:18:071
19209991715,1cyclictest0-21swapper/112:22:191
19209991715,1cyclictest0-21swapper/110:48:111
19209991714,2cyclictest9706-21cpuspeed_turbos12:35:111
19209991714,2cyclictest8164-21ntpq12:30:181
19209991714,2cyclictest8164-21ntpq12:30:171
19209991714,2cyclictest5601-21lxd07:50:431
19209991714,2cyclictest5415-21ntpq12:25:171
19209991714,2cyclictest3991-21H222:10:211
19209991714,2cyclictest3989-21H222:10:211
19209991714,2cyclictest3983-21H222:10:211
19209991714,2cyclictest27807-21expr10:15:131
19209991714,2cyclictest26550-21expr09:15:181
19209991714,2cyclictest15878-21/usr/sbin/munin09:55:201
19209991714,1cyclictest0-21swapper/109:41:571
19209991713,3cyclictest3989-21H222:10:211
1920999171,1cyclictest0-21swapper/110:30:191
1920999170,2cyclictest5761-21nfsd407:40:201
1920999170,2cyclictest3989-21H222:10:211
1920999170,2cyclictest24918-21cat10:10:121
1920999170,2cyclictest18167-21nfsd409:00:191
1920999170,2cyclictest18167-21nfsd409:00:191
1920999170,2cyclictest1515-21lxd11:46:431
1920999170,1cyclictest3987-21H222:10:211
1920999170,1cyclictest3979-21H222:10:211
1920999170,16cyclictest8650-21fschecks_time11:35:141
1920999170,16cyclictest8650-21fschecks_time11:35:141
1920999170,16cyclictest734-21cpuspeed_turbos10:25:121
1920999170,16cyclictest3987-21H222:10:211
1920999170,16cyclictest3583-21grep11:25:161
1920999170,16cyclictest3351-21lxd10:52:431
1920999170,16cyclictest32666-21ntpq09:25:201
1920999170,16cyclictest32666-21ntpq09:25:191
1920999170,16cyclictest27264-21tr08:20:171
1920999170,16cyclictest22240-21awk11:00:231
1920999170,15cyclictest3976-21H222:10:211
1920499172,1cyclictest0-21swapper/012:10:370
19204991715,1cyclictest9-21ksoftirqd/012:07:430
19204991714,2cyclictest9975-21nfsd408:45:190
19204991714,2cyclictest8848-21netstat09:40:170
19204991714,2cyclictest8426-21sed12:30:200
19204991714,2cyclictest8426-21sed12:30:190
19204991714,2cyclictest3991-21H222:10:210
19204991714,2cyclictest3987-21H222:10:210
19204991714,2cyclictest30467-21expr10:20:120
19204991714,2cyclictest23357-21needreboot07:15:180
19204991714,2cyclictest19924-21expr07:10:130
19204991714,2cyclictest17913-21pickup11:19:180
19204991714,2cyclictest17568-21/usr/sbin/munin11:50:160
19204991714,2cyclictest17237-21expr09:00:150
19204991714,2cyclictest17237-21expr09:00:140
19204991714,2cyclictest13191-21idleruntime10:45:160
19204991713,3cyclictest2007-21systemd-journal11:20:290
1920499170,2cyclictest6540-21nfsd411:30:180
1920499170,2cyclictest4883-21nfsd410:30:160
1920499170,2cyclictest29568-21/usr/sbin/munin08:25:150
1920499170,2cyclictest21793-21munin-run12:00:000
1920499170,1cyclictest3987-21H222:10:210
1920499170,1cyclictest0-21swapper/009:19:230
1920499170,16cyclictest6872-21expr10:35:130
1920499170,16cyclictest3983-21H222:10:210
1920499170,16cyclictest3981-21H222:10:210
1920499170,16cyclictest3976-21H222:10:210
1920499170,16cyclictest3976-21H222:10:210
1920499170,16cyclictest28553-21cron11:15:000
1920499170,16cyclictest28553-21cron11:15:000
1920499170,16cyclictest22973-21awk11:05:000
1920499170,16cyclictest21053-21python310:05:010
1920499170,16cyclictest18396-21cut08:05:140
1920499170,16cyclictest16133-21smtp11:47:460
1920499170,16cyclictest1611-21fschecks_count12:20:150
1920499170,16cyclictest1526-21lxd10:58:430
1920499170,16cyclictest14500-21snapd07:35:590
1920499170,16cyclictest11331-21ls11:40:130
19213991614,2cyclictest0-21swapper/209:25:002
19213991614,2cyclictest0-21swapper/209:25:002
19213991614,1cyclictest5080-21expr09:35:132
19213991614,1cyclictest467-21/usr/sbin/munin10:25:162
19213991614,1cyclictest1903-21tune2fs07:35:162
19213991614,1cyclictest0-21swapper/210:10:122
19213991614,1cyclictest0-21swapper/208:15:052
1921399160,1cyclictest0-21swapper/208:50:162
1921399160,15cyclictest7921-21cat09:40:132
1921399160,15cyclictest3981-21H222:10:212
1921399160,15cyclictest0-21swapper/210:00:232
19209991614,1cyclictest5100-21expr09:35:121
19209991614,1cyclictest23782-21apache_volume08:15:111
19209991614,1cyclictest11676-21ls11:40:141
19209991614,1cyclictest0-21swapper/111:10:141
19209991614,1cyclictest0-21swapper/111:10:141
19209991614,1cyclictest0-21swapper/111:05:121
19209991614,1cyclictest0-21swapper/107:15:021
19209991613,2cyclictest2902-21cpuspeed_turbos08:35:131
1920999160,2cyclictest13868-21nfsd407:55:161
1920999160,15cyclictest5285-21grep11:30:121
1920999160,15cyclictest114502chrt08:50:101
1920999160,15cyclictest0-21swapper/112:05:141
1920999160,15cyclictest0-21swapper/108:45:131
1920999160,15cyclictest0-21swapper/108:00:101
19204991614,1cyclictest151772chrt09:51:050
19204991614,1cyclictest1180-21fschecks_count10:25:140
19204991614,1cyclictest0-21swapper/011:05:100
19204991614,1cyclictest0-21swapper/008:55:130
19204991614,1cyclictest0-21swapper/008:50:220
19204991614,1cyclictest0-21swapper/007:55:020
1920499160,1cyclictest0-21swapper/012:40:000
1920499160,15cyclictest5147-21fschecks_time07:40:170
1920499160,15cyclictest3987-21H222:10:210
1920499160,15cyclictest3987-21H222:10:210
1920499160,15cyclictest1079-21cups-browsed08:20:220
1920499160,15cyclictest0-21swapper/007:30:150
19204991512,2cyclictest29458-21awk07:25:220
1920499150,14cyclictest0-21swapper/008:00:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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