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2026-06-19 - 21:30
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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 19, 2026 12:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
876399230,5cyclictest0-21swapper/112:35:011
876499220,18cyclictest0-21swapper/212:07:092
876399225,16cyclictest0-21swapper/111:26:101
8763992222,0cyclictest0-21swapper/107:30:231
8762992118,2cyclictest6345-21latency_hist09:00:010
876499203,16cyclictest3979-21H222:10:212
876499202,17cyclictest0-21swapper/211:00:182
8763992017,2cyclictest3991-21H222:10:211
876399200,18cyclictest758-21cut08:50:131
8762992011,5cyclictest0-21swapper/011:40:010
876299200,19cyclictest843-21systemd-network12:01:520
8764991917,1cyclictest0-21swapper/208:45:422
8764991916,2cyclictest20931-21expr10:20:152
8764991916,2cyclictest20931-21expr10:20:152
8764991916,2cyclictest19163-21open_inodes10:15:182
8764991915,3cyclictest3985-21H222:10:212
8764991915,3cyclictest2020-21cut09:45:172
876499191,2cyclictest3987-21H222:10:212
876499190,2cyclictest3983-21H222:10:212
876499190,2cyclictest3979-21H222:10:212
876499190,2cyclictest3979-21H222:10:212
876499190,2cyclictest3976-21H222:10:212
876499190,16cyclictest4035-21H222:10:212
876499190,16cyclictest3976-21H222:10:212
876399192,16cyclictest31070-21smtpd10:39:391
8763991917,1cyclictest3991-21H222:10:211
8763991917,1cyclictest0-21swapper/112:36:031
8763991916,2cyclictest3983-21H222:10:211
8763991916,2cyclictest3979-21H222:10:211
8763991916,2cyclictest26161-21cut12:25:001
8763991916,2cyclictest11047-21wc10:00:221
8763991912,6cyclictest0-21swapper/110:59:231
876399190,2cyclictest3991-21H222:10:211
876399190,2cyclictest3989-21H222:10:211
876399190,17cyclictest2128-21cut09:45:171
876299192,3cyclictest0-21swapper/010:20:160
876299192,3cyclictest0-21swapper/010:20:150
8762991918,1cyclictest9-21ksoftirqd/007:59:220
8762991916,2cyclictest4171-21expr09:50:130
8762991916,2cyclictest3983-21H222:10:210
8762991914,4cyclictest870-21systemd-logind07:43:520
876299190,16cyclictest3991-21H222:10:210
876299190,16cyclictest3991-21H222:10:210
876299190,16cyclictest3979-21H222:10:210
876299190,16cyclictest3976-21H222:10:210
876299190,16cyclictest3976-21H222:10:210
876499182,15cyclictest28-21ksoftirqd/211:55:322
876499182,15cyclictest28-21ksoftirqd/208:41:332
876499182,15cyclictest28-21ksoftirqd/208:41:322
876499182,15cyclictest28-21ksoftirqd/207:16:172
8764991816,1cyclictest28-21ksoftirqd/212:13:562
8764991815,2cyclictest4035-21H222:10:212
8764991814,3cyclictest4580-21if_eno108:55:172
876499181,2cyclictest15062-21nvmesmart_nvme011:05:182
876499181,17cyclictest8761-21cyclictest09:11:562
876499180,4cyclictest0-21swapper/207:46:062
876499180,2cyclictest5680-21sort09:50:222
876499180,2cyclictest399-20systemd-journal10:05:002
876499180,2cyclictest3983-21H222:10:212
876499180,2cyclictest3983-21H222:10:212
876499180,2cyclictest3981-21H222:10:212
876499180,17cyclictest3979-21H222:10:212
876499180,17cyclictest3976-21H222:10:212
876499180,17cyclictest27353-21munin-plugin-st09:35:012
876499180,17cyclictest19901-21ntp_kernel_err09:20:182
876499180,17cyclictest0-21swapper/210:40:212
876399182,15cyclictest5096-21grep08:55:191
876399182,15cyclictest22135-21expr12:15:181
876399182,15cyclictest18182-21apache2ctl08:25:011
8763991814,3cyclictest3991-21H222:10:211
8763991814,3cyclictest3989-21H222:10:211
8763991814,3cyclictest3979-21H222:10:211
8763991814,3cyclictest17870-21grep11:10:171
8763991814,3cyclictest17870-21grep11:10:161
8763991814,3cyclictest0-21swapper/109:27:381
8763991814,3cyclictest0-21swapper/107:27:081
8763991814,2cyclictest3985-21H222:10:211
8763991814,2cyclictest20729-21ps11:15:191
876399181,16cyclictest14506-21snapd07:40:391
876399180,2cyclictest3991-21H222:10:211
876399180,2cyclictest3989-21H222:10:211
876399180,2cyclictest3989-21H222:10:211
876399180,2cyclictest3976-21H222:10:211
876399180,2cyclictest3976-21H222:10:211
876399180,2cyclictest3976-21H222:10:211
876399180,2cyclictest0-21swapper/107:16:341
876299182,15cyclictest0-21swapper/009:46:510
8762991816,1cyclictest9-21ksoftirqd/008:08:150
8762991816,1cyclictest0-21swapper/009:19:070
8762991815,2cyclictest3976-21H222:10:210
8762991813,2cyclictest3989-21H222:10:210
876299181,1cyclictest0-21swapper/011:04:500
876299181,16cyclictest0-21swapper/008:13:460
876299180,2cyclictest3983-21H222:10:210
876299180,2cyclictest3981-21H222:10:210
876299180,2cyclictest3976-21H222:10:210
876299180,1cyclictest3976-21H222:10:210
876299180,15cyclictest4035-21H222:10:210
8764991715,1cyclictest0-21swapper/209:40:172
8764991714,2cyclictest993-21dbus-daemon10:25:202
8764991714,2cyclictest9350-21expr07:10:142
8764991714,2cyclictest8093-21cat11:50:172
8764991714,2cyclictest6795-21dpkg09:00:012
8764991714,2cyclictest29001-21apache_accesses12:30:092
8764991714,2cyclictest28291-21chrt12:26:112
8764991714,2cyclictest16222-21cat09:15:142
8764991714,2cyclictest13853-21ntpq12:00:202
8764991714,2cyclictest12104-21apache_volume10:05:112
8764991714,2cyclictest1085-21gdbus08:20:222
8764991713,3cyclictest3983-21H222:10:212
8764991712,3cyclictest3976-21H222:10:212
876499171,15cyclictest0-21swapper/210:10:172
876499170,2cyclictest3987-21H222:10:212
876499170,2cyclictest24467-21irqstats12:20:162
876499170,2cyclictest2122-21kernelversion11:40:162
876499170,16cyclictest4099-21H222:10:212
876499170,16cyclictest4099-21H222:10:212
876499170,16cyclictest4035-21H222:10:212
876499170,16cyclictest3983-21H222:10:212
876499170,16cyclictest301652chrt11:35:092
876499170,16cyclictest301652chrt11:35:082
876499170,16cyclictest25229-21sendmail07:40:012
876499170,16cyclictest22235-21expr08:30:162
876499170,16cyclictest21414-21proxymap08:28:402
876499170,16cyclictest20813-21apache_processe12:15:122
876499170,16cyclictest17543-21expr07:25:112
876499170,16cyclictest15223-21grep07:20:162
876499170,16cyclictest1113-21expr08:50:132
876499170,16cyclictest10212-21/usr/sbin/munin08:10:132
876499170,16cyclictest0-21swapper/211:20:152
876499170,16cyclictest0-21swapper/208:36:372
876499170,15cyclictest3976-21H222:10:212
8763991715,1cyclictest0-21swapper/111:05:191
8763991715,1cyclictest0-21swapper/110:44:131
8763991715,1cyclictest0-21swapper/107:35:181
8763991714,2cyclictest3991-21H222:10:211
8763991714,2cyclictest3991-21H222:10:211
8763991714,2cyclictest3985-21H222:10:211
8763991714,2cyclictest3979-21H222:10:211
8763991714,2cyclictest3976-21H222:10:211
8763991714,2cyclictest27089-21cron09:35:011
8763991714,2cyclictest10104-21cat09:05:151
8763991714,2cyclictest10104-21cat09:05:151
876399171,1cyclictest0-21swapper/110:45:171
876399171,1cyclictest0-21swapper/110:45:171
876399171,15cyclictest0-21swapper/111:40:121
876399171,15cyclictest0-21swapper/108:00:171
876399170,2cyclictest6544-21cron11:50:011
876399170,2cyclictest5477-21grep09:50:211
876399170,2cyclictest3991-21H222:10:211
876399170,2cyclictest3976-21H222:10:211
876399170,2cyclictest3976-21H222:10:211
876399170,2cyclictest32324-21cut07:50:181
876399170,2cyclictest28179-21smartctl11:30:151
876399170,2cyclictest19439-21cpuspeed_turbos08:25:131
876399170,16cyclictest4035-21H222:10:211
876399170,16cyclictest3989-21H222:10:211
876399170,16cyclictest26466-21switchtime09:30:211
876399170,16cyclictest25259-21df_inode08:35:151
876399170,16cyclictest18120-21cat10:15:141
876399170,16cyclictest15780-21apache_volume09:15:121
876399170,16cyclictest15199-21apache_volume12:05:131
876399170,16cyclictest13247-21cut09:10:151
876399170,16cyclictest11581-21nfsd408:10:181
8762991715,1cyclictest0-21swapper/010:27:320
8762991714,2cyclictest6981-21apache_processe11:50:120
8762991714,2cyclictest4099-21H222:10:210
8762991714,2cyclictest3991-21H222:10:210
8762991714,2cyclictest3987-21H222:10:210
8762991714,2cyclictest3981-21H222:10:210
8762991714,2cyclictest3979-21H222:10:210
8762991714,2cyclictest3979-21H222:10:210
8762991714,2cyclictest3685-21memory10:45:160
8762991714,2cyclictest3685-21memory10:45:160
8762991714,2cyclictest20067-21sleep10:20:000
8762991714,2cyclictest18774-21tr09:20:150
8762991714,2cyclictest14753-21unattended-upgr09:12:540
8762991713,3cyclictest28529-21grep07:45:140
876299170,2cyclictest6952-21apache_processe09:00:130
876299170,2cyclictest6901-21expr09:55:130
876299170,2cyclictest5437-21apache_volume10:50:110
876299170,2cyclictest18570-21chrt11:11:280
876299170,2cyclictest18570-21chrt11:11:280
876299170,1cyclictest3976-21H222:10:210
876299170,16cyclictest4837-21df_inode11:45:120
876299170,16cyclictest3989-21H222:10:210
876299170,16cyclictest3981-21H222:10:210
876299170,16cyclictest3976-21H222:10:210
876299170,16cyclictest3976-21H222:10:210
876299170,16cyclictest3053-21systemd-logind09:30:510
876299170,16cyclictest30423-21apache_accesses09:40:120
876299170,16cyclictest28810-21expr10:35:130
876299170,16cyclictest28791-21nfsd408:40:190
876299170,16cyclictest28791-21nfsd408:40:190
876299170,16cyclictest24122-21ntp_kernel_pll_07:35:210
876299170,16cyclictest21416-21gpg-connect-age09:25:010
876299170,16cyclictest18385-21expr12:10:130
876299170,16cyclictest14032-21cat08:15:150
876299170,16cyclictest1348-21lxd12:18:420
876299170,16cyclictest10845-21cut09:05:190
876299170,16cyclictest10845-21cut09:05:190
8764991614,1cyclictest0-21swapper/207:30:142
8763991614,1cyclictest0-21swapper/111:00:291
8763991614,1cyclictest0-21swapper/107:55:131
876399160,15cyclictest3979-21H222:10:211
876399160,15cyclictest0-21swapper/107:20:221
8762991614,1cyclictest16264-21sed12:05:190
8762991614,1cyclictest0-21swapper/007:20:050
8762991613,1cyclictest0-21swapper/008:50:130
876299160,1cyclictest0-21swapper/012:25:140
876299160,1cyclictest0-21swapper/010:05:150
876299160,1cyclictest0-21swapper/008:25:040
876299160,15cyclictest9387-21expr07:10:150
876299160,15cyclictest0-21swapper/007:30:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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