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2026-09-04 - 21:05
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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 Sep 04, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1165299270,4cyclictest0-21swapper/009:38:400
11662992414,5cyclictest0-21swapper/208:45:132
11652992421,2cyclictest14495-21snapd12:13:110
1165299237,6cyclictest0-21swapper/010:00:010
1165299230,5cyclictest0-21swapper/010:03:550
1165299230,16cyclictest21482-21latency_hist12:10:000
1165799220,18cyclictest0-21swapper/110:58:421
11652992215,1cyclictest0-21swapper/010:10:220
11652992214,2cyclictest30536-21kernelversion10:30:150
1165299221,15cyclictest188632sleep008:18:020
1165299220,2cyclictest5994-21apache_processe10:45:110
1165299220,2cyclictest27991-21sed07:39:000
1165299220,2cyclictest25243-21chrt11:19:190
1165299220,1cyclictest30579-21sed08:40:010
1165299220,16cyclictest27296-21apache_processe12:20:120
1165299220,15cyclictest30750-21df12:25:150
1165299220,15cyclictest12359-21irqstats10:55:160
11652992114,2cyclictest22520-21/usr/sbin/munin10:15:210
11652992114,1cyclictest17409-21sed07:20:010
11652992114,1cyclictest0-21swapper/011:35:130
11652992114,1cyclictest0-21swapper/011:25:130
11652992114,1cyclictest0-21swapper/010:10:000
11652992114,1cyclictest0-21swapper/009:40:170
11652992114,1cyclictest0-21swapper/009:10:210
11652992114,1cyclictest0-21swapper/008:10:150
11652992113,2cyclictest15609-21ntp_states11:00:190
1165299210,2cyclictest8320-21basename11:45:140
1165299210,2cyclictest27273-21sed11:20:210
1165299210,2cyclictest2461-21pzem_energy12:30:170
1165299210,2cyclictest11847-21sort08:05:150
1165299210,1cyclictest0-21swapper/009:20:130
1165299210,15cyclictest8712-21awk10:50:140
1165299210,15cyclictest23194-21cat07:30:130
1165299210,15cyclictest0-21swapper/011:50:250
1165299210,15cyclictest0-21swapper/011:10:250
1166299202,2cyclictest3976-21H222:10:212
11662992014,3cyclictest0-21swapper/208:20:172
1166299200,19cyclictest843-21systemd-network08:35:352
11652992017,2cyclictest3987-21H222:10:210
11652992014,5cyclictest0-21swapper/009:25:130
11652992014,5cyclictest0-21swapper/009:25:120
11652992014,3cyclictest3991-21H222:10:210
11652992014,1cyclictest4716-21sshd07:54:250
11652992014,1cyclictest0-21swapper/011:55:140
11652992014,1cyclictest0-21swapper/010:25:130
11652992014,1cyclictest0-21swapper/007:40:130
11652992014,1cyclictest0-21swapper/007:40:130
11652992013,2cyclictest4099-21H222:10:210
11652992013,1cyclictest0-21swapper/012:00:140
1165299200,2cyclictest27584-21perf08:35:000
1165299200,1cyclictest4998-21threads10:40:220
1165299200,1cyclictest19917-21if_lxdbr009:15:140
1165299200,1cyclictest0-21swapper/011:05:160
1165299200,1cyclictest0-21swapper/010:35:140
1165299200,1cyclictest0-21swapper/009:08:590
1165299200,1cyclictest0-21swapper/008:40:190
1165299200,15cyclictest3983-21H222:10:210
1165299200,15cyclictest0-21swapper/011:45:000
1165299200,15cyclictest0-21swapper/009:50:230
1165299200,15cyclictest0-21swapper/007:45:170
1165299200,14cyclictest0-21swapper/009:30:120
11662991918,0cyclictest0-21swapper/208:11:122
11662991915,2cyclictest7459-21proc_pri10:45:182
1166299190,5cyclictest0-21swapper/211:24:232
1166299190,18cyclictest3981-21H222:10:212
1166299190,18cyclictest0-21swapper/209:24:002
1165799193,15cyclictest11203-21switchtime09:55:211
1165799193,15cyclictest0-21swapper/109:01:011
1165799192,2cyclictest506-21grep12:30:001
1165799192,16cyclictest22219-21logrotate08:25:021
11657991917,1cyclictest3289-21latency07:50:161
11657991917,1cyclictest21-21ksoftirqd/111:07:461
11657991914,4cyclictest0-21swapper/111:25:581
11657991914,3cyclictest0-21swapper/108:32:011
1165799190,16cyclictest4099-21H222:10:211
1165799190,16cyclictest4035-21H222:10:211
1165799190,16cyclictest3991-21H222:10:211
1165799190,16cyclictest3979-21H222:10:211
11652991913,1cyclictest24298-21cut10:20:140
1165299190,1cyclictest4099-21H222:10:210
1165299190,1cyclictest3976-21H222:10:210
1165299190,1cyclictest0-21swapper/008:45:140
1165299190,15cyclictest0-21swapper/007:55:150
11662991816,1cyclictest3983-21H222:10:212
11662991816,1cyclictest28-21ksoftirqd/211:36:332
11662991816,1cyclictest28-21ksoftirqd/210:44:282
11662991816,1cyclictest15742-21idleruntime10:05:132
11662991816,1cyclictest0-21swapper/211:29:142
11662991816,1cyclictest0-21swapper/208:40:592
11662991814,3cyclictest666-21grep07:45:182
11662991814,3cyclictest3991-21H222:10:212
11662991814,3cyclictest3985-21H222:10:212
11662991813,3cyclictest3983-21H222:10:212
11662991813,2cyclictest3979-21H222:10:212
1166299181,16cyclictest32326-21missed_timers11:30:212
1166299181,16cyclictest23720-21nfsd408:25:172
1166299181,16cyclictest20489-21mailstats12:05:192
1166299181,16cyclictest19324-21find11:09:002
1166299180,2cyclictest3979-21H222:10:212
1166299180,2cyclictest2399-21cstates07:50:132
1166299180,17cyclictest3987-21H222:10:212
1166299180,17cyclictest29072-21nvmesmart_nvme009:30:182
1166299180,17cyclictest26864-21perf12:20:002
1166299180,15cyclictest4099-21H222:10:212
1165799183,7cyclictest0-21swapper/110:20:011
11657991816,1cyclictest24927-21acpi09:25:101
11657991816,1cyclictest24927-21acpi09:25:101
11657991816,1cyclictest21-21ksoftirqd/110:27:341
11657991814,3cyclictest3991-21H222:10:211
11657991813,4cyclictest25641-21taskset07:35:101
1165799180,3cyclictest843-21systemd-network12:37:041
1165799180,2cyclictest4035-21H222:10:211
1165799180,2cyclictest3981-21H222:10:211
1165799180,2cyclictest3979-21H222:10:211
1165799180,1cyclictest0-21swapper/108:45:201
1165799180,17cyclictest4099-21H222:10:211
1165799180,17cyclictest3981-21H222:10:211
1165799180,17cyclictest3979-21H222:10:211
1165799180,16cyclictest3991-21H222:10:211
1165799180,16cyclictest3985-21H222:10:211
1165799180,16cyclictest3979-21H222:10:211
1165799180,15cyclictest3987-21H222:10:211
11652991815,2cyclictest8592-21fschecks_count08:55:130
11652991814,3cyclictest14501-21snapd08:25:280
11652991813,3cyclictest8147-21cpuspeed_turbos08:00:130
11662991715,1cyclictest143482chrt11:55:172
11662991715,1cyclictest0-21swapper/212:25:172
11662991715,1cyclictest0-21swapper/210:10:192
11662991715,1cyclictest0-21swapper/207:28:192
11662991714,2cyclictest4099-21H222:10:212
11662991714,2cyclictest3991-21H222:10:212
11662991714,2cyclictest3989-21H222:10:212
11662991714,2cyclictest3980-21H222:10:212
11662991714,2cyclictest26396-21ps09:25:182
11662991714,2cyclictest26396-21ps09:25:182
11662991714,2cyclictest25212-21/usr/sbin/munin08:30:192
11662991714,2cyclictest14442-21cstates11:00:122
11662991713,3cyclictest4111-21cpuspeed_turbos12:35:122
11662991713,3cyclictest3987-21H222:10:212
1166299170,2cyclictest993-21dbus-daemon10:00:202
1166299170,2cyclictest4035-21H222:10:212
1166299170,2cyclictest3989-21H222:10:212
1166299170,2cyclictest3985-21H222:10:212
1166299170,2cyclictest29066-21expr07:40:152
1166299170,2cyclictest29066-21expr07:40:142
1166299170,2cyclictest27718-21cat12:20:142
1166299170,2cyclictest22722-21kernelversion12:10:152
1166299170,2cyclictest1926-21timerwakeupswit10:35:222
1166299170,2cyclictest14785-21nfsd409:05:172
1166299170,16cyclictest5428-21sh11:40:162
1166299170,16cyclictest4099-21H222:10:212
1166299170,16cyclictest3989-21H222:10:212
1166299170,16cyclictest3985-21H222:10:212
1166299170,16cyclictest3985-21H222:10:212
1166299170,16cyclictest3981-21H222:10:212
1166299170,16cyclictest3981-21H222:10:212
1166299170,16cyclictest25306-21sendmail11:20:002
1166299170,16cyclictest20857-21smtpd11:10:232
1166299170,16cyclictest19324-21cat09:15:132
1166299170,16cyclictest18051-21threads09:10:202
1166299170,15cyclictest3979-21H222:10:212
11657991715,1cyclictest3976-21H222:10:211
11657991715,1cyclictest0-21swapper/110:41:141
11657991714,2cyclictest9891-21needreboot10:50:201
11657991714,2cyclictest4035-21H222:10:211
11657991714,2cyclictest4035-21H222:10:211
11657991714,2cyclictest3983-21H222:10:211
11657991714,2cyclictest3981-21H222:10:211
11657991714,2cyclictest3979-21H222:10:211
11657991714,2cyclictest3976-21H222:10:211
11657991714,2cyclictest32535-21cat07:45:161
11657991714,2cyclictest13954-21/usr/sbin/munin08:10:171
11657991714,2cyclictest1114-21lldpd11:00:141
1165799171,1cyclictest27384-21switchtime11:20:221
1165799171,15cyclictest21-21ksoftirqd/108:36:101
1165799170,2cyclictest7508-21http_loadtime09:50:161
1165799170,2cyclictest4832-21find11:40:121
1165799170,2cyclictest3991-21H222:10:211
1165799170,2cyclictest20893-21fschecks_count11:10:181
1165799170,2cyclictest0-21swapper/109:35:211
1165799170,2cyclictest0-21swapper/109:20:001
1165799170,16cyclictest7929-21users10:45:211
1165799170,16cyclictest4407-21expr09:45:121
1165799170,16cyclictest3989-21H222:10:211
1165799170,16cyclictest3981-21H222:10:211
1165799170,16cyclictest31616-21cstates08:40:131
1165799170,16cyclictest29121-21expr07:40:141
1165799170,16cyclictest29121-21expr07:40:141
1165799170,16cyclictest23553-21cat11:15:111
1165799170,16cyclictest2327-21nfsd409:40:171
1165799170,16cyclictest1035-21thermald11:35:201
1165799170,16cyclictest10321-21cat08:05:001
1165799170,16cyclictest0-21swapper/111:30:191
11662991614,1cyclictest0-21swapper/207:20:202
1166299160,1cyclictest0-21swapper/208:15:202
11657991613,2cyclictest3707-21master10:30:521
1165799160,2cyclictest5803-21sh08:50:141
1165799160,15cyclictest0-21swapper/110:05:121
1165299160,2cyclictest17467-21dpkg07:20:120
1165299160,15cyclictest0-21swapper/012:15:060
1165799150,1cyclictest0-21swapper/110:00:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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