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2026-08-12 - 17:44
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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 Wed Aug 12, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
765099220,18cyclictest0-21swapper/112:35:471
764699210,4cyclictest0-21swapper/010:50:010
765599200,19cyclictest0-21swapper/210:20:302
765599200,17cyclictest4099-21H222:10:212
765099204,0cyclictest0-21swapper/109:45:171
765099202,11cyclictest11186-21munin-run09:10:001
7650992017,2cyclictest31482-21timerwakeupswit08:45:211
7646992017,2cyclictest2872-21systemd-logind11:32:520
765599194,1cyclictest0-21swapper/210:14:442
765599193,15cyclictest28-21ksoftirqd/211:01:412
765599192,16cyclictest21012-21grep07:30:182
7655991917,1cyclictest0-21swapper/211:41:152
7655991914,4cyclictest3991-21H222:10:212
765599190,2cyclictest4099-21H222:10:212
765599190,2cyclictest3976-21H222:10:212
765599190,16cyclictest4099-21H222:10:212
765599190,16cyclictest3989-21H222:10:212
765599190,16cyclictest3983-21H222:10:212
765599190,16cyclictest3983-21H222:10:212
765599190,16cyclictest3979-21H222:10:212
765099192,3cyclictest0-21swapper/111:50:011
765099192,2cyclictest16654-21chrt12:07:171
7650991917,1cyclictest21-21ksoftirqd/111:21:101
7650991917,1cyclictest21-21ksoftirqd/110:52:051
7650991917,1cyclictest21-21ksoftirqd/107:46:161
7650991917,1cyclictest0-21swapper/111:35:231
7650991916,2cyclictest3981-21H222:10:211
7650991916,2cyclictest31062-21processes12:30:211
7650991916,2cyclictest10826-21processes11:00:211
765099190,18cyclictest0-21swapper/111:31:091
765099190,18cyclictest0-21swapper/110:45:161
765099190,16cyclictest4099-21H222:10:211
765099190,16cyclictest4035-21H222:10:211
765099190,16cyclictest3991-21H222:10:211
764699192,6cyclictest0-21swapper/010:59:270
7646991916,2cyclictest24590-21kernelversion11:25:170
764699190,2cyclictest3985-21H222:10:210
764699190,16cyclictest4099-21H222:10:210
764699190,16cyclictest3979-21H222:10:210
765599182,1cyclictest28-21ksoftirqd/207:14:102
765599182,15cyclictest30326-21chrt07:48:402
765599182,15cyclictest0-21swapper/208:25:022
7655991818,0cyclictest0-21swapper/208:36:332
7655991816,1cyclictest0-21swapper/207:44:072
7655991814,3cyclictest3985-21H222:10:212
7655991814,3cyclictest3981-21H222:10:212
7655991813,2cyclictest3987-21H222:10:212
765599181,2cyclictest13715-21cron12:05:002
765599181,16cyclictest26598-21sed12:25:012
765599180,3cyclictest0-21swapper/211:15:212
765599180,2cyclictest3985-21H222:10:212
765599180,17cyclictest3991-21H222:10:212
765599180,17cyclictest3989-21H222:10:212
765599180,17cyclictest3987-21H222:10:212
765599180,16cyclictest3983-21H222:10:212
765599180,16cyclictest3976-21H222:10:212
765599180,16cyclictest3976-21H222:10:212
765599180,15cyclictest3989-21H222:10:212
765599180,15cyclictest0-21swapper/212:35:572
765099182,15cyclictest6055-21latency09:55:161
765099182,15cyclictest21-21ksoftirqd/109:26:061
765099182,15cyclictest130462chrt10:07:191
765099182,15cyclictest0-21swapper/107:56:361
7650991815,2cyclictest3981-21H222:10:211
7650991814,3cyclictest4035-21H222:10:211
7650991814,3cyclictest3991-21H222:10:211
7650991814,3cyclictest3979-21H222:10:211
7650991814,3cyclictest3976-21H222:10:211
765099181,2cyclictest3989-21H222:10:211
7650991812,5cyclictest0-21swapper/109:10:011
765099181,16cyclictest25990-21nfsd410:30:171
765099181,16cyclictest0-21swapper/108:35:181
765099180,3cyclictest4099-21H222:10:211
765099180,2cyclictest4099-21H222:10:211
765099180,2cyclictest3987-21H222:10:211
765099180,2cyclictest3987-21H222:10:211
765099180,2cyclictest3976-21H222:10:211
765099180,1cyclictest4099-21H222:10:211
765099180,17cyclictest3985-21H222:10:211
765099180,17cyclictest17985-21apache208:25:011
765099180,16cyclictest4099-21H222:10:211
765099180,16cyclictest3989-21H222:10:211
765099180,15cyclictest4099-21H222:10:211
765099180,15cyclictest4035-21H222:10:211
765099180,15cyclictest3976-21H222:10:211
7646991816,1cyclictest9-21ksoftirqd/011:21:400
7646991816,1cyclictest9-21ksoftirqd/009:42:200
7646991816,1cyclictest1197-21pzem_energy11:40:210
7646991815,1cyclictest0-21swapper/009:35:250
7646991814,3cyclictest3979-21H222:10:210
7646991814,2cyclictest3981-21H222:10:210
7646991814,2cyclictest0-21swapper/008:50:180
764699180,3cyclictest24563-21smtp07:37:040
764699180,2cyclictest4099-21H222:10:210
764699180,2cyclictest3991-21H222:10:210
764699180,2cyclictest3989-21H222:10:210
764699180,2cyclictest3985-21H222:10:210
764699180,16cyclictest3981-21H222:10:210
764699180,15cyclictest4099-21H222:10:210
764699180,15cyclictest3985-21H222:10:210
7655991714,2cyclictest3987-21H222:10:212
7655991714,2cyclictest3987-21H222:10:212
7655991714,2cyclictest23949-21expr11:25:142
7655991714,2cyclictest21757-21nfsd409:25:182
7655991713,3cyclictest0-21swapper/209:35:192
765599170,2cyclictest3991-21H222:10:212
765599170,2cyclictest3989-21H222:10:212
765599170,2cyclictest26896-21expr11:30:132
765599170,2cyclictest15971-21ntp_states12:05:232
765599170,2cyclictest14495-21snapd10:35:582
765599170,16cyclictest4400-21grep08:00:152
765599170,16cyclictest4099-21H222:10:212
765599170,16cyclictest4035-21H222:10:212
765599170,16cyclictest3991-21H222:10:212
765599170,16cyclictest3989-21H222:10:212
765599170,16cyclictest3987-21H222:10:212
765599170,16cyclictest3983-21H222:10:212
765599170,16cyclictest3976-21H222:10:212
765599170,16cyclictest31049-21ntp_states08:45:182
765599170,16cyclictest29767-21fschecks_time11:35:152
765599170,16cyclictest27850-21cut08:40:172
765599170,16cyclictest15892-21snapd07:50:282
765599170,16cyclictest12737-21fschecks_time11:05:132
765599170,16cyclictest0-21swapper/207:56:112
765599170,15cyclictest3989-21H222:10:212
7650991715,1cyclictest0-21swapper/110:55:161
7650991714,2cyclictest3991-21H222:10:211
7650991714,2cyclictest3987-21H222:10:211
7650991714,2cyclictest3985-21H222:10:211
7650991714,2cyclictest3979-21H222:10:211
7650991714,2cyclictest31330-21expr07:50:141
7650991714,2cyclictest18249-21ls09:20:141
7650991713,1cyclictest0-21swapper/109:41:581
765099170,2cyclictest9408-21lxd10:04:451
765099170,2cyclictest3976-21H222:10:211
765099170,2cyclictest27964-21latency_hist07:45:011
765099170,2cyclictest22638-21df10:25:151
765099170,1cyclictest0-21swapper/108:19:031
765099170,16cyclictest3987-21H222:10:211
765099170,16cyclictest19345-21apache_volume10:20:141
765099170,16cyclictest14140-21expr07:20:151
765099170,16cyclictest12726-21nfsd412:00:191
765099170,15cyclictest3987-21H222:10:211
7646991715,1cyclictest3989-21H222:10:210
7646991714,2cyclictest8224-21apache_processe11:55:090
7646991714,2cyclictest4099-21H222:10:210
7646991714,2cyclictest3987-21H222:10:210
7646991714,2cyclictest3985-21H222:10:210
7646991714,2cyclictest32067-21nfsd407:50:190
7646991714,2cyclictest19340-21apache_accesses10:20:130
7646991714,2cyclictest19203-21cat10:20:010
7646991714,2cyclictest1-21systemd09:08:520
7646991714,2cyclictest0-21swapper/009:15:140
7646991713,3cyclictest16301-21nfsd411:10:190
7646991713,2cyclictest3987-21H222:10:210
764699170,2cyclictest870-21systemd-logind10:28:520
764699170,2cyclictest4099-21H222:10:210
764699170,2cyclictest4035-21H222:10:210
764699170,2cyclictest3991-21H222:10:210
764699170,2cyclictest3989-21H222:10:210
764699170,2cyclictest3987-21H222:10:210
764699170,2cyclictest3979-21H222:10:210
764699170,2cyclictest2448-21apache_processe11:45:110
764699170,2cyclictest18551-21expr11:15:160
764699170,2cyclictest12258-21cat12:00:170
764699170,2cyclictest12088-21apache_volume11:05:110
764699170,16cyclictest7778-21sed10:00:010
764699170,16cyclictest6389-21expr09:00:130
764699170,16cyclictest4035-21H222:10:210
764699170,16cyclictest4035-21H222:10:210
764699170,16cyclictest3985-21H222:10:210
764699170,16cyclictest3981-21H222:10:210
764699170,16cyclictest3981-21H222:10:210
764699170,16cyclictest3981-21H222:10:210
764699170,16cyclictest30551-21expr10:40:130
764699170,16cyclictest27977-21cat07:45:000
764699170,16cyclictest23236-21taskset09:30:120
764699170,16cyclictest20289-21timerandwakeup08:25:230
764699170,16cyclictest1856-21systemd-udevd08:34:520
764699170,16cyclictest10776-21apt-config10:05:010
7655991614,1cyclictest0-21swapper/209:00:122
7655991614,1cyclictest0-21swapper/207:35:092
7655991613,2cyclictest4035-21H222:10:212
7655991613,2cyclictest3987-21H222:10:212
765599160,1cyclictest9255-21fschecks_time09:05:142
765599160,15cyclictest15369-21ps07:20:212
765599160,15cyclictest0-21swapper/211:45:142
7650991614,1cyclictest0-21swapper/108:00:221
7650991614,1cyclictest0-21swapper/107:30:141
7650991613,2cyclictest9949-21/usr/sbin/munin08:10:131
7646991614,1cyclictest0-21swapper/008:35:140
7646991613,2cyclictest13837-21apache_processe10:10:110
764699160,15cyclictest5609-21nfsd408:00:200
764699160,15cyclictest3981-21H222:10:210
764699160,15cyclictest32370-21date12:35:120
764699160,15cyclictest0-21swapper/012:05:160
764699160,15cyclictest0-21swapper/008:15:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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