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2026-03-06 - 21:29
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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 Fri Mar 06, 2026 12:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
611799242,18cyclictest0-21swapper/008:35:010
6129992112,8cyclictest0-21swapper/208:00:152
612499210,3cyclictest0-21swapper/109:50:171
6124992018,1cyclictest9788-21mii-tool12:00:161
611799200,18cyclictest0-21swapper/011:28:450
612999194,1cyclictest0-21swapper/211:51:142
612999193,15cyclictest0-21swapper/207:46:552
612999192,11cyclictest4585-21perf10:00:012
6129991916,2cyclictest17330-21needreboot08:25:172
612499193,9cyclictest27648-21perf10:39:591
6124991915,3cyclictest0-21swapper/109:21:371
6124991915,3cyclictest0-21swapper/108:50:131
6124991914,4cyclictest399-20systemd-journal11:39:511
6117991916,2cyclictest21407-21cut12:20:170
611799191,15cyclictest0-21swapper/008:53:400
612999182,1cyclictest10923-21pluginstate09:10:202
612999182,15cyclictest14319-21cpuspeed_turbos10:15:112
6129991814,3cyclictest18124-21awk11:19:592
6129991814,3cyclictest1517-21lxd09:22:412
6129991814,2cyclictest1551-21snapd10:05:092
6124991815,1cyclictest0-21swapper/109:41:391
6124991814,3cyclictest870-21systemd-logind11:18:521
6124991813,3cyclictest0-21swapper/110:28:481
612499181,16cyclictest2007-21systemd-journal10:00:271
612499180,3cyclictest9661-21pzem10:05:201
612499180,17cyclictest4099-21H222:10:211
611799182,15cyclictest22628-21expr10:30:140
6117991814,1cyclictest0-21swapper/008:10:220
6117991813,4cyclictest843-21systemd-network10:37:140
611799181,2cyclictest29979-21nfsd409:45:170
6129991715,1cyclictest0-21swapper/208:45:172
6129991715,1cyclictest0-21swapper/207:25:212
6129991714,2cyclictest399-20systemd-journal08:17:002
6129991714,2cyclictest21980-21pzem_energy07:35:202
6129991714,2cyclictest18863-21mailstats12:15:202
6129991714,2cyclictest13250-21grep07:20:172
6129991714,2cyclictest12189-21/usr/sbin/munin09:15:222
612999170,2cyclictest7599-21ntpq11:55:192
612999170,2cyclictest7312-21chrt09:05:162
612999170,2cyclictest6441-21wc07:10:142
612999170,2cyclictest32466-21cat09:50:162
612999170,1cyclictest5743-21timerwakeupswit09:00:222
612999170,16cyclictest9106-21tr12:00:142
612999170,16cyclictest863-21avahi-daemon07:55:192
612999170,16cyclictest6760-21nfsd410:00:172
612999170,16cyclictest5651-21fschecks_count08:05:142
612999170,16cyclictest27975-21dpkg10:40:002
612999170,16cyclictest26279-21perf11:35:002
612999170,16cyclictest26257-21idleruntime12:30:162
612999170,16cyclictest24920-21systemctl07:40:192
612999170,16cyclictest22863-21grep12:25:142
612999170,16cyclictest2254-21proc_pri08:55:192
612999170,16cyclictest16911-21munin-run12:15:002
612999170,16cyclictest13983-21expr08:20:142
612999170,16cyclictest13959-21kernelversion11:10:162
612999170,16cyclictest10427-21latency_hist08:15:012
6124991717,0cyclictest0-21swapper/107:20:201
6124991715,1cyclictest21-21ksoftirqd/112:35:131
6124991715,1cyclictest0-21swapper/109:55:181
6124991714,2cyclictest7856-21expr11:00:141
6124991714,2cyclictest30249-21fschecks_count11:40:131
6124991714,2cyclictest26091-21df12:30:141
6124991714,2cyclictest21298-21cut08:35:011
6124991714,2cyclictest20854-21expr07:35:141
612499171,15cyclictest24764-21cat11:30:141
612499170,2cyclictest3414-21master07:53:541
612499170,2cyclictest3053-21systemd-logind09:14:521
612499170,2cyclictest24346-21grep09:35:171
612499170,2cyclictest23370-21/usr/sbin/munin10:30:171
612499170,2cyclictest20339-21expr12:20:131
612499170,2cyclictest1856-21systemd-udevd08:16:521
612499170,2cyclictest13988-21cat08:20:141
612499170,2cyclictest10151-21lxd12:28:411
612499170,17cyclictest0-21swapper/107:40:161
612499170,16cyclictest8633-21proxymap07:13:511
612499170,16cyclictest6263-21nfsd408:05:181
612499170,16cyclictest2894-21trivial-rewrite08:56:321
612499170,16cyclictest28444-21if_enp1s008:45:171
612499170,16cyclictest27155-21dpkg08:45:011
612499170,16cyclictest21876-21grep09:30:211
612499170,16cyclictest16806-21fschecks_time08:25:141
612499170,16cyclictest15775-21pzem_voltage10:15:191
612499170,16cyclictest15105-21expr12:10:111
6117991714,2cyclictest4099-21H222:10:210
6117991714,2cyclictest3311-21mailstats10:50:230
6117991714,2cyclictest31095-21munin-run10:45:010
6117991714,2cyclictest26414-21ls09:40:140
6117991714,2cyclictest1523-21lxd07:14:410
6117991714,2cyclictest13265-21ntp_kernel_err07:20:170
611799171,15cyclictest16179-21nfsd409:20:170
611799171,15cyclictest0-21swapper/009:00:220
611799170,2cyclictest71592sleep008:07:300
611799170,2cyclictest6092-21cut11:55:010
611799170,2cyclictest2981-21chrt08:57:290
611799170,2cyclictest16881-21cron12:19:540
611799170,2cyclictest1568-21munin-plugin-st08:00:000
611799170,2cyclictest13741-21pzem_voltage09:15:220
611799170,2cyclictest11967-21cat10:10:150
611799170,2cyclictest11119-21ls09:10:210
611799170,16cyclictest7544-21cut11:55:180
611799170,16cyclictest32504-21expr10:45:170
611799170,16cyclictest32504-21expr10:45:170
611799170,16cyclictest27375-21apt-config08:45:010
611799170,16cyclictest27101-21systemctl12:30:210
611799170,16cyclictest23586-21cat09:35:130
611799170,16cyclictest21955-21pzem_voltage09:30:210
611799170,16cyclictest18872-21missed_timers07:30:180
611799170,16cyclictest17323-21expr10:20:130
611799170,16cyclictest17323-21expr10:20:120
611799170,16cyclictest16330-21cut08:25:130
611799170,16cyclictest12687-21smtp08:16:280
611799170,16cyclictest1079-21cups-browsed10:55:200
611799170,16cyclictest0-21swapper/008:47:100
6129991614,1cyclictest13134-21switchtime10:10:222
6129991614,1cyclictest10325-21head07:15:172
6129991614,1cyclictest10325-21head07:15:172
6129991614,1cyclictest0-21swapper/212:22:132
6129991614,1cyclictest0-21swapper/212:09:002
6129991614,1cyclictest0-21swapper/212:08:592
6129991614,1cyclictest0-21swapper/210:55:182
6129991614,1cyclictest0-21swapper/210:25:132
6129991614,1cyclictest0-21swapper/209:45:152
6129991614,1cyclictest0-21swapper/208:35:192
6129991614,1cyclictest0-21swapper/208:35:192
6129991614,1cyclictest0-21swapper/208:30:132
6129991614,1cyclictest0-21swapper/207:50:182
6129991613,2cyclictest1035-21thermald09:40:212
612999161,1cyclictest0-21swapper/208:40:202
612999160,2cyclictest20039-21pzem_current11:20:202
612999160,1cyclictest3829-21taskset10:50:292
612999160,1cyclictest0-21swapper/211:40:162
612999160,1cyclictest0-21swapper/211:05:302
612999160,1cyclictest0-21swapper/209:25:152
612999160,15cyclictest8310-21awk11:00:172
612999160,15cyclictest28329-21cpuspeed_turbos12:35:132
612999160,15cyclictest23986-21/usr/sbin/munin09:35:152
612999160,15cyclictest23099-21fschecks_time10:30:152
612999160,15cyclictest22343-21awk09:30:232
612999160,15cyclictest0-21swapper/211:45:152
612999160,15cyclictest0-21swapper/211:35:122
612999160,15cyclictest0-21swapper/211:25:132
612999160,15cyclictest0-21swapper/210:45:132
612999160,15cyclictest0-21swapper/210:45:122
612999160,15cyclictest0-21swapper/210:40:122
612999160,15cyclictest0-21swapper/208:50:132
612999160,15cyclictest0-21swapper/207:30:142
6124991614,1cyclictest9160-21apt-get07:15:121
6124991614,1cyclictest9160-21apt-get07:15:121
6124991614,1cyclictest5601-21lxd09:46:411
6124991614,1cyclictest130082chrt11:10:011
6124991614,1cyclictest0-21swapper/112:05:131
6124991614,1cyclictest0-21swapper/112:05:131
6124991614,1cyclictest0-21swapper/111:50:131
6124991614,1cyclictest0-21swapper/111:25:131
6124991614,1cyclictest0-21swapper/111:05:131
6124991614,1cyclictest0-21swapper/110:50:141
6124991614,1cyclictest0-21swapper/110:40:141
6124991614,1cyclictest0-21swapper/108:35:131
6124991614,1cyclictest0-21swapper/108:35:121
6124991613,2cyclictest17419-21expr10:20:141
6124991613,2cyclictest17419-21expr10:20:131
612499160,1cyclictest0-21swapper/112:15:111
612499160,1cyclictest0-21swapper/109:05:141
612499160,15cyclictest6223-21apache_accesses11:55:111
612499160,15cyclictest3992-21H222:10:211
612499160,15cyclictest28373-21chrt07:49:541
612499160,15cyclictest201rcuc/107:30:141
612499160,15cyclictest16381-21ntpq07:25:181
612499160,15cyclictest11478-21acpi10:10:101
612499160,15cyclictest0-21swapper/111:20:171
612499160,15cyclictest0-21swapper/110:55:121
612499160,15cyclictest0-21swapper/109:25:181
612499160,15cyclictest0-21swapper/109:15:171
612499160,15cyclictest0-21swapper/109:00:151
612499160,15cyclictest0-21swapper/108:10:171
612499160,15cyclictest0-21swapper/108:00:141
6117991614,1cyclictest7519-21cpuspeed_turbos11:00:140
6117991614,1cyclictest14319-21cpuspeed_turbos10:15:120
6117991614,1cyclictest0-21swapper/011:45:180
6117991614,1cyclictest0-21swapper/011:35:110
6117991614,1cyclictest0-21swapper/011:10:210
6117991614,1cyclictest0-21swapper/009:55:200
6117991614,1cyclictest0-21swapper/009:50:120
6117991614,1cyclictest0-21swapper/007:40:130
6117991614,1cyclictest0-21swapper/007:35:170
611799160,2cyclictest24415-21cstates11:30:120
611799160,1cyclictest10892-21idleruntime11:05:150
611799160,1cyclictest0-21swapper/012:25:160
611799160,1cyclictest0-21swapper/012:05:120
611799160,1cyclictest0-21swapper/012:05:120
611799160,1cyclictest0-21swapper/012:03:130
611799160,1cyclictest0-21swapper/009:05:140
611799160,1cyclictest0-21swapper/008:00:190
611799160,1cyclictest0-21swapper/007:45:190
611799160,15cyclictest8297-21expr10:05:140
611799160,15cyclictest5116-21apt-config10:00:010
611799160,15cyclictest22481-21if_lxdbr008:35:160
611799160,15cyclictest22481-21if_lxdbr008:35:150
611799160,15cyclictest17390-21sensors11:15:210
611799160,15cyclictest0-21swapper/012:35:130
611799160,15cyclictest0-21swapper/012:10:130
611799160,15cyclictest0-21swapper/011:40:120
611799160,15cyclictest0-21swapper/010:25:070
611799160,15cyclictest0-21swapper/009:25:050
611799160,15cyclictest0-21swapper/007:25:170
612999150,14cyclictest0-21swapper/210:20:142
612999150,14cyclictest0-21swapper/210:20:142
612499150,1cyclictest0-21swapper/110:45:121
612499150,1cyclictest0-21swapper/110:45:121
6117991514,1cyclictest0-21swapper/007:50:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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