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2026-07-04 - 02:43
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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 Fri Jul 03, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32699992917,10cyclictest0-21swapper/109:25:121
3269899290,19cyclictest0-21swapper/008:55:000
3270099240,21cyclictest0-21swapper/207:31:412
32700992017,2cyclictest16048-21seq12:21:532
32700992016,3cyclictest3981-21H222:10:212
32700992014,5cyclictest0-21swapper/210:28:342
32699992017,2cyclictest3983-21H222:10:211
32699992013,6cyclictest843-21systemd-network11:11:441
3269999200,17cyclictest0-21swapper/107:40:191
3269899203,16cyclictest26202-21fschecks_time10:45:140
3270099194,1cyclictest0-21swapper/207:45:502
3270099192,2cyclictest12050-21idleruntime10:20:162
3270099192,16cyclictest28222-21apache_volume08:55:132
32700991916,2cyclictest9786-21date09:20:012
32700991915,3cyclictest3985-21H222:10:212
32700991915,3cyclictest1079-21cups-browsed09:25:202
32700991914,3cyclictest4099-21H222:10:212
3270099190,3cyclictest0-21swapper/210:10:182
3270099190,18cyclictest3979-21H222:10:212
3270099190,18cyclictest0-21swapper/208:45:022
3270099190,16cyclictest3981-21H222:10:212
3269999192,16cyclictest29538-21grep10:50:181
32699991914,2cyclictest3991-21H222:10:211
3269999190,2cyclictest3991-21H222:10:211
3269999190,16cyclictest4035-21H222:10:211
3269999190,16cyclictest3976-21H222:10:211
3269899193,15cyclictest0-21swapper/011:57:060
3269899193,15cyclictest0-21swapper/008:48:520
32698991916,2cyclictest4099-21H222:10:210
32698991915,3cyclictest13051-21tr11:20:130
32698991915,3cyclictest0-21swapper/008:15:140
3269899190,16cyclictest3989-21H222:10:210
3269899190,16cyclictest3979-21H222:10:210
3270099182,15cyclictest28-21ksoftirqd/210:55:162
3270099182,15cyclictest101612chrt08:22:062
32700991814,3cyclictest863-21avahi-daemon12:30:202
32700991814,3cyclictest18411-21tr09:35:152
32700991814,3cyclictest17520-21postgres09:30:362
32700991813,2cyclictest3983-21H222:10:212
3270099180,2cyclictest3985-21H222:10:212
3270099180,2cyclictest3985-21H222:10:212
3270099180,17cyclictest19025-21apt-get12:30:012
3270099180,17cyclictest0-21swapper/212:06:142
3269999183,1cyclictest0-21swapper/110:55:091
3269999182,15cyclictest0-21swapper/108:26:501
32699991817,1cyclictest21-21ksoftirqd/109:09:161
32699991817,1cyclictest0-21swapper/107:47:181
32699991816,1cyclictest0-21swapper/112:25:061
32699991815,2cyclictest19206-21kernelversion11:30:161
32699991814,3cyclictest4099-21H222:10:211
32699991814,3cyclictest3981-21H222:10:211
3269999181,1cyclictest0-21swapper/111:20:131
3269999180,3cyclictest23685-21grep07:50:141
3269999180,3cyclictest23502-21turbostat11:40:011
3269999180,2cyclictest4035-21H222:10:211
3269999180,2cyclictest3989-21H222:10:211
3269999180,2cyclictest3985-21H222:10:211
3269999180,2cyclictest3981-21H222:10:211
3269999180,2cyclictest3976-21H222:10:211
3269999180,2cyclictest1441-21sendmail-mta11:00:581
3269999180,17cyclictest3985-21H222:10:211
3269999180,17cyclictest3983-21H222:10:211
3269999180,16cyclictest4099-21H222:10:211
3269999180,16cyclictest4035-21H222:10:211
3269999180,16cyclictest3989-21H222:10:211
3269999180,16cyclictest3985-21H222:10:211
3269999180,15cyclictest3976-21H222:10:211
3269899182,15cyclictest3989-21H222:10:210
32698991816,1cyclictest9-21ksoftirqd/007:15:140
32698991816,1cyclictest18368-21cat11:30:120
32698991814,3cyclictest3979-21H222:10:210
3269899181,1cyclictest0-21swapper/012:35:180
3269899181,16cyclictest5805-21grep10:10:140
3269899181,16cyclictest29445-21nfsd410:50:180
3269899180,4cyclictest0-21swapper/008:41:150
3269899180,2cyclictest3983-21H222:10:210
3269899180,2cyclictest3983-21H222:10:210
3269899180,2cyclictest3979-21H222:10:210
3269899180,2cyclictest3976-21H222:10:210
3269899180,2cyclictest3976-21H222:10:210
3269899180,15cyclictest3989-21H222:10:210
32700991715,1cyclictest0-21swapper/212:10:182
32700991715,1cyclictest0-21swapper/211:20:162
32700991715,1cyclictest0-21swapper/210:05:152
32700991715,1cyclictest0-21swapper/207:25:152
32700991714,2cyclictest863-21avahi-daemon11:30:212
32700991714,2cyclictest3983-21H222:10:212
32700991714,2cyclictest3983-21H222:10:212
32700991714,2cyclictest10619-21expr11:15:152
3270099170,2cyclictest4857-21sshd08:14:262
3270099170,2cyclictest3985-21H222:10:212
3270099170,2cyclictest3985-21H222:10:212
3270099170,2cyclictest25676-21grep10:45:132
3270099170,2cyclictest1300-21lxd12:04:432
3270099170,1cyclictest0-21swapper/211:00:112
3270099170,1cyclictest0-21swapper/209:57:082
3270099170,16cyclictest4099-21H222:10:212
3270099170,16cyclictest4035-21H222:10:212
3270099170,16cyclictest3989-21H222:10:212
3270099170,16cyclictest3985-21H222:10:212
3270099170,16cyclictest3983-21H222:10:212
3270099170,16cyclictest3983-21H222:10:212
3270099170,16cyclictest3979-21H222:10:212
3270099170,16cyclictest3979-21H222:10:212
3270099170,16cyclictest31601-21fschecks_count09:00:152
3270099170,16cyclictest28004-21lxd11:50:432
3270099170,16cyclictest25684-21grep08:50:132
3270099170,16cyclictest2250-21pzem_power07:10:232
3270099170,16cyclictest2250-21pzem_power07:10:222
3270099170,16cyclictest15750-21cut11:25:132
3270099170,16cyclictest1226-21wc11:55:192
3270099170,16cyclictest0-21swapper/212:35:132
3270099170,16cyclictest0-21swapper/209:42:442
3270099170,15cyclictest3981-21H222:10:212
32699991715,1cyclictest0-21swapper/108:50:171
32699991714,2cyclictest9161-21fschecks_count10:15:161
32699991714,2cyclictest4035-21H222:10:211
32699991714,2cyclictest3991-21H222:10:211
32699991714,2cyclictest3991-21H222:10:211
32699991714,2cyclictest32105-21apache_volume11:55:121
32699991714,2cyclictest3108-21expr12:00:121
32699991714,2cyclictest24159-21ntp_states08:45:181
32699991714,2cyclictest22793-21apache_accesses10:40:141
32699991714,2cyclictest11455-21smtp07:29:061
32699991714,2cyclictest11446-21ntp_kernel_err11:15:191
32699991713,3cyclictest3989-21H222:10:211
3269999171,15cyclictest21-21ksoftirqd/110:25:021
3269999170,2cyclictest5052-21df_inode11:05:151
3269999170,2cyclictest3979-21H222:10:211
3269999170,2cyclictest22564-21apache_accesses12:35:101
3269999170,2cyclictest19112-21python312:30:011
3269999170,2cyclictest14358-21latency_hist07:35:011
3269999170,1cyclictest3976-21H222:10:211
3269999170,16cyclictest7463-21expr09:15:131
3269999170,16cyclictest4029-21expr07:15:131
3269999170,16cyclictest3983-21H222:10:211
3269999170,16cyclictest3981-21H222:10:211
3269999170,16cyclictest3979-21H222:10:211
3269999170,16cyclictest28632-21apt-config08:00:001
3269999170,16cyclictest22483-21nfsd409:40:171
3269999170,16cyclictest17901-21perf11:29:591
3269999170,15cyclictest6412-21tune2fs10:10:151
3269899172,1cyclictest314682sleep011:52:200
3269899172,15cyclictest9-21ksoftirqd/010:32:200
3269899172,14cyclictest0-21swapper/008:29:460
32698991715,1cyclictest0-21swapper/007:45:200
32698991714,2cyclictest8053-21cut07:20:210
32698991714,2cyclictest4699-21timerwakeupswit12:00:210
32698991714,2cyclictest3985-21H222:10:210
32698991714,2cyclictest3976-21H222:10:210
32698991714,2cyclictest18367-21nfsd408:35:180
32698991714,2cyclictest18110-21ntp_states12:25:170
32698991714,2cyclictest16932-21sed07:39:000
32698991714,2cyclictest13395-21sshd09:25:140
32698991714,2cyclictest10671-21/usr/sbin/munin07:25:190
3269899171,1cyclictest9-21ksoftirqd/009:15:060
3269899171,15cyclictest3992-21H222:10:210
3269899171,15cyclictest0-21swapper/008:10:180
3269899170,2cyclictest843-21systemd-network12:12:320
3269899170,2cyclictest4099-21H222:10:210
3269899170,2cyclictest3989-21H222:10:210
3269899170,2cyclictest3985-21H222:10:210
3269899170,2cyclictest3985-21H222:10:210
3269899170,2cyclictest3976-21H222:10:210
3269899170,2cyclictest27683-21missed_timers09:50:180
3269899170,2cyclictest26407-21date09:50:000
3269899170,2cyclictest26407-21date09:50:000
3269899170,2cyclictest13776-21sed07:30:220
3269899170,2cyclictest1163-21nvmesmart_nvme010:00:190
3269899170,1cyclictest3991-21H222:10:210
3269899170,16cyclictest5875-21nvmesmart_nvme011:05:220
3269899170,16cyclictest4706-21grep09:10:120
3269899170,16cyclictest4035-21H222:10:210
3269899170,16cyclictest3991-21H222:10:210
3269899170,16cyclictest3983-21H222:10:210
3269899170,16cyclictest3983-21H222:10:210
3269899170,16cyclictest3414-21master12:30:070
3269899170,16cyclictest26045-21cat07:55:140
3269899170,16cyclictest21280-21ntpq10:35:190
3269899170,16cyclictest2108-21cron10:09:540
3269899170,16cyclictest15466-21pzem_power08:30:220
32700991614,1cyclictest4099-21H222:10:212
32700991614,1cyclictest2407-21latency09:05:182
32700991614,1cyclictest16231-21pzem_energy07:35:232
32700991614,1cyclictest0-21swapper/211:35:132
32700991614,1cyclictest0-21swapper/211:05:192
32700991614,1cyclictest0-21swapper/208:25:152
3270099160,1cyclictest0-21swapper/211:10:142
3270099160,1cyclictest0-21swapper/208:40:152
3270099160,1cyclictest0-21swapper/208:15:152
3270099160,15cyclictest0-21swapper/210:30:172
32699991614,1cyclictest0-21swapper/108:20:141
32699991614,1cyclictest0-21swapper/108:15:211
32699991614,1cyclictest0-21swapper/108:10:131
32699991614,1cyclictest0-21swapper/107:20:151
32699991613,2cyclictest3979-21H222:10:211
3269999160,15cyclictest593-21dpkg07:10:141
3269999160,15cyclictest593-21dpkg07:10:141
32698991614,1cyclictest0-21swapper/012:20:150
32698991614,1cyclictest0-21swapper/011:35:130
32698991614,1cyclictest0-21swapper/010:15:130
32698991613,2cyclictest14674-21expr10:25:140
3269899160,15cyclictest10798-21munin-run08:25:010
3269899160,15cyclictest0-21swapper/008:55:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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