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2025-11-29 - 17:14
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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 Sat Nov 29, 2025 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
631399242,18cyclictest0-21swapper/007:30:010
6319992322,0cyclictest0-21swapper/107:50:191
631999220,4cyclictest0-21swapper/110:35:131
631999220,18cyclictest0-21swapper/110:16:541
632199214,14cyclictest0-21swapper/210:34:102
632199210,20cyclictest893-21systemd-logind08:44:082
631999202,3cyclictest4530-21H212:26:331
6319992014,3cyclictest0-21swapper/110:20:161
632199194,1cyclictest0-21swapper/211:36:162
632199194,11cyclictest26671-21perf09:40:012
632199193,1cyclictest2130-21cat07:55:222
632199193,15cyclictest0-21swapper/207:23:312
632199191,3cyclictest3441-21gsd-color09:35:012
632199190,5cyclictest0-21swapper/208:22:112
632199190,18cyclictest0-21swapper/210:48:592
632199190,15cyclictest0-21swapper/210:55:172
631999190,17cyclictest4536-21H212:26:331
6313991914,4cyclictest7807-21ps10:55:210
6313991914,2cyclictest4536-21H212:26:330
631399190,18cyclictest0-21swapper/010:14:460
6321991815,2cyclictest4538-21H212:26:332
6321991815,2cyclictest29990-21nfsd408:45:182
6321991815,2cyclictest27316-21fschecks_time07:45:162
6321991815,2cyclictest16080-21smartctl11:10:202
632199181,2cyclictest4536-21H212:26:332
632199181,16cyclictest8380-21ntp_offset07:10:202
6321991811,6cyclictest11687-21strings09:10:172
632199180,2cyclictest6312-21awk09:00:222
632199180,2cyclictest11177-21proc_pri07:15:202
632199180,17cyclictest881-21avahi-daemon09:55:232
632199180,17cyclictest0-21swapper/208:50:152
6319991814,3cyclictest23466-21dump-pmu-power07:40:011
631999181,16cyclictest4538-21H212:26:331
631999180,2cyclictest4528-21H212:26:331
631999180,17cyclictest4538-21H212:26:331
631999180,17cyclictest0-21swapper/111:02:121
631999180,16cyclictest4530-21H212:26:331
631999180,16cyclictest4523-21H212:26:331
631999180,16cyclictest4523-21H212:26:331
631999180,16cyclictest0-21swapper/111:06:031
631999180,16cyclictest0-21swapper/111:06:031
631999180,15cyclictest4538-21H212:26:331
631999180,15cyclictest4526-21H212:26:331
631399184,2cyclictest0-21swapper/012:09:200
631399182,15cyclictest26057-21timerwakeupswit09:35:220
6313991816,1cyclictest0-21swapper/011:21:330
6313991816,1cyclictest0-21swapper/008:38:580
6313991813,3cyclictest28546-21munin-plugin-st08:45:010
631399181,16cyclictest2753-21/usr/sbin/munin10:50:170
631399180,3cyclictest2049-21systemd-journal08:55:390
631399180,2cyclictest4530-21H212:26:330
631399180,16cyclictest0-21swapper/008:45:150
631399180,15cyclictest4532-21H212:26:330
6321991715,1cyclictest1909-21cpuspeed_turbos08:55:142
6321991714,2cyclictest8545-21munin-run08:10:012
6321991714,2cyclictest8545-21munin-run08:10:002
6321991714,2cyclictest4523-21H212:26:332
6321991714,2cyclictest22884-21chrt11:25:162
6321991714,2cyclictest0-21swapper/211:40:202
6321991714,2cyclictest0-21swapper/211:15:382
632199170,2cyclictest970-21dbus-daemon10:20:232
632199170,2cyclictest4523-21H212:26:332
632199170,2cyclictest4219-21/usr/sbin/munin10:50:202
632199170,2cyclictest31737-21dpkg10:43:462
632199170,2cyclictest30739-21sed07:50:182
632199170,2cyclictest28077-21/usr/sbin/munin09:40:142
632199170,2cyclictest20204-21/usr/sbin/munin09:25:192
632199170,2cyclictest12613-21grep10:10:152
632199170,2cyclictest12348-21df11:05:142
632199170,2cyclictest12348-21df11:05:142
632199170,16cyclictest9194-21perf10:05:012
632199170,16cyclictest6091-21ntp_kernel_pll_11:50:182
632199170,16cyclictest4526-21H212:26:332
632199170,16cyclictest4523-21H212:26:332
632199170,16cyclictest31246-21nfsd412:35:192
632199170,16cyclictest28443-21awk12:30:192
632199170,16cyclictest24547-21fschecks_time07:40:172
632199170,16cyclictest18371-21nfsd408:25:192
632199170,16cyclictest13892-21sed12:05:192
632199170,16cyclictest11614-21nvmesmart_nvme012:00:212
632199170,16cyclictest0-21swapper/212:16:142
632199170,15cyclictest0-21swapper/210:39:012
6319991715,1cyclictest4581-21H212:26:331
6319991715,1cyclictest4530-21H212:26:331
6319991715,1cyclictest4528-21H212:26:331
6319991714,2cyclictest4538-21H212:26:331
6319991714,2cyclictest4526-21H212:26:331
6319991714,2cyclictest19012-21ls07:30:161
6319991714,2cyclictest17435-21grep12:10:231
6319991714,2cyclictest1403-21lxd10:31:051
6319991714,2cyclictest13234-21idleruntime10:10:171
6319991714,2cyclictest0-21swapper/109:05:211
6319991713,3cyclictest4538-21H212:26:331
631999171,1cyclictest11892-21sshd09:10:181
631999171,15cyclictest17610-21cut11:15:141
631999171,15cyclictest11547-21nfsd412:00:191
631999171,15cyclictest0-21swapper/111:25:431
631999170,2cyclictest4538-21H212:26:331
631999170,2cyclictest32550-21grep11:40:201
631999170,2cyclictest30340-21ls08:45:231
631999170,2cyclictest20254-21cat08:30:131
631999170,2cyclictest18218-21ls08:25:201
631999170,2cyclictest16188-21pzem_energy11:10:211
631999170,2cyclictest1555-21lxd07:59:061
631999170,1cyclictest4581-21H212:26:331
631999170,16cyclictest881-21avahi-daemon09:30:211
631999170,16cyclictest5064-21cat11:50:141
631999170,16cyclictest4538-21H212:26:331
631999170,16cyclictest4523-21H212:26:331
631999170,16cyclictest31506-21grep09:45:191
631999170,16cyclictest30008-21snapd10:06:491
631999170,16cyclictest26798-21taskset11:30:191
631999170,16cyclictest22960-21cat08:35:151
631999170,16cyclictest21245-21cut12:20:001
631999170,16cyclictest1798-21systemd07:25:001
631999170,16cyclictest1712-21latency_hist08:55:001
631999170,16cyclictest16232-21fschecks_time07:25:161
6313991714,2cyclictest805-21cat08:50:240
6313991714,2cyclictest4530-21H212:26:330
6313991714,2cyclictest23427-21apache_processe10:30:120
6313991714,2cyclictest21861-21expr12:20:150
6313991714,2cyclictest20568-21turbostat07:35:000
6313991714,2cyclictest1348-21grep10:45:210
6313991714,2cyclictest1059-21cups-browsed11:50:210
6313991714,2cyclictest0-21swapper/009:55:150
6313991714,2cyclictest0-21swapper/009:20:110
6313991714,1cyclictest0-21swapper/011:05:150
6313991714,1cyclictest0-21swapper/011:05:150
6313991713,2cyclictest4581-21H212:26:330
6313991713,2cyclictest29525-21nfsd411:35:190
6313991712,2cyclictest4530-21H212:26:330
631399170,2cyclictest4530-21H212:26:330
631399170,2cyclictest2178-21/usr/sbin/munin07:55:230
631399170,2cyclictest1059-21cups-browsed09:40:200
631399170,16cyclictest980-21cat09:50:160
631399170,16cyclictest19461-21cron11:17:000
631399170,16cyclictest17748-21cat10:20:000
631399170,16cyclictest1225-21perf11:45:000
631399170,16cyclictest10949-21awk07:15:190
631399170,16cyclictest10523-21kernelversion10:05:190
6321991614,1cyclictest0-21swapper/211:30:022
6321991614,1cyclictest0-21swapper/211:00:152
6321991614,1cyclictest0-21swapper/210:25:152
6321991614,1cyclictest0-21swapper/209:50:082
6321991614,1cyclictest0-21swapper/209:15:182
6321991614,1cyclictest0-21swapper/208:15:062
6321991614,1cyclictest0-21swapper/208:10:142
6321991614,1cyclictest0-21swapper/208:00:222
6321991614,1cyclictest0-21swapper/207:30:132
632199160,1cyclictest17213-21nfsd409:20:192
632199160,1cyclictest0-21swapper/207:35:182
632199160,15cyclictest9138-21sed11:55:222
632199160,15cyclictest22377-21chrt11:24:122
632199160,15cyclictest20016-21cut08:30:132
632199160,15cyclictest16155-21fschecks_count07:25:172
632199160,15cyclictest15322-21cpuspeed_turbos10:15:162
632199160,15cyclictest0-21swapper/211:45:192
632199160,15cyclictest0-21swapper/208:35:162
6319991616,0cyclictest21-21ksoftirqd/108:00:121
6319991614,1cyclictest0-21swapper/108:10:411
631999160,2cyclictest4581-21H212:26:331
631999160,1cyclictest2120-21expr11:45:171
631999160,1cyclictest0-21swapper/110:50:181
631999160,1cyclictest0-21swapper/107:15:151
631999160,15cyclictest4523-21H212:26:331
631999160,15cyclictest30715-21switchtime10:40:231
631999160,15cyclictest24448-21cstates09:35:151
631999160,15cyclictest2327-21cat08:55:141
631999160,15cyclictest21898-21df12:20:151
631999160,15cyclictest201rcuc/111:20:141
631999160,15cyclictest201rcuc/110:25:201
631999160,15cyclictest0-21swapper/109:25:141
6313991614,1cyclictest9526-21cat11:00:150
6313991614,1cyclictest21832-21missed_timers10:25:200
6313991614,1cyclictest0-21swapper/012:00:160
6313991614,1cyclictest0-21swapper/011:55:200
6313991614,1cyclictest0-21swapper/011:45:230
6313991614,1cyclictest0-21swapper/009:15:170
6313991614,1cyclictest0-21swapper/009:05:130
6313991614,1cyclictest0-21swapper/009:04:040
6313991614,1cyclictest0-21swapper/008:05:470
6313991614,1cyclictest0-21swapper/008:05:460
6313991613,2cyclictest31310-21ntpq12:35:210
6313991613,2cyclictest22070-21fschecks_count09:30:160
6313991613,2cyclictest20805-21kernelversion08:30:170
6313991613,2cyclictest18533-21ntp_kernel_pll_08:25:210
6313991613,2cyclictest17988-21dpkg10:20:140
631399160,2cyclictest27900-21awk07:45:180
631399160,2cyclictest26970-21ntpq11:30:190
631399160,2cyclictest12894-21cat07:20:170
631399160,15cyclictest4523-21H212:26:330
631399160,15cyclictest4523-21H212:26:330
631399160,15cyclictest30444-21cpuspeed_turbos09:45:140
631399160,15cyclictest14756-21expr08:20:140
631399160,15cyclictest0-21swapper/012:15:160
631399160,15cyclictest0-21swapper/012:10:150
631399160,15cyclictest0-21swapper/011:25:160
631399160,15cyclictest0-21swapper/010:35:180
631399160,15cyclictest0-21swapper/009:25:140
631399160,15cyclictest0-21swapper/009:10:220
6313991513,1cyclictest4581-21H212:26:330
631399150,1cyclictest0-21swapper/007:40:160
631399150,14cyclictest0-21swapper/007:50:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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