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2026-04-29 - 15:39
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Wed Apr 29, 2026 12:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17695992213,5cyclictest0-21swapper/210:40:392
1769399220,3cyclictest0-21swapper/012:05:130
17695992118,2cyclictest25539-21ntp_offset11:10:172
17695992118,2cyclictest25539-21ntp_offset11:10:172
1769599203,16cyclictest8736-21ntpq12:35:172
17694992017,2cyclictest6504-21sessionclean10:38:591
17694992017,2cyclictest3981-21H222:10:211
1769499200,18cyclictest3979-21H222:10:211
1769399208,11cyclictest0-21swapper/010:45:130
1769599193,15cyclictest3979-21H222:10:212
1769599192,16cyclictest22429-21basename12:04:592
17695991917,1cyclictest0-21swapper/210:15:182
17695991916,2cyclictest19366-21ntp_kernel_err07:10:182
1769599190,18cyclictest12842-21grep08:55:142
1769599190,18cyclictest12842-21grep08:55:132
1769599190,16cyclictest3991-21H222:10:212
1769599190,16cyclictest3989-21H222:10:212
1769499194,1cyclictest0-21swapper/108:13:581
17694991914,3cyclictest4035-21H222:10:211
1769499190,3cyclictest0-21swapper/111:29:561
1769499190,2cyclictest3989-21H222:10:211
1769499190,1cyclictest0-21swapper/112:35:171
1769499190,18cyclictest3991-21H222:10:211
1769499190,18cyclictest20472-21cat07:15:011
1769399192,1cyclictest0-21swapper/009:43:180
17693991917,1cyclictest0-21swapper/010:35:250
1769399190,16cyclictest3985-21H222:10:210
1769399190,16cyclictest3976-21H222:10:210
1769399190,16cyclictest3976-21H222:10:210
1769599182,15cyclictest0-21swapper/210:35:012
17695991817,1cyclictest28-21ksoftirqd/212:06:542
17695991816,1cyclictest28-21ksoftirqd/210:03:112
17695991815,2cyclictest5479-21php7.009:39:002
17695991815,2cyclictest3979-21H222:10:212
17695991814,2cyclictest4035-21H222:10:212
17695991813,4cyclictest0-21swapper/210:27:212
1769599181,2cyclictest3983-21H222:10:212
1769599181,1cyclictest0-21swapper/211:00:572
1769599181,16cyclictest31657-21nfsd408:30:172
1769599180,3cyclictest12148-21ntp_kernel_pll_07:55:182
1769599180,2cyclictest3981-21H222:10:212
1769599180,2cyclictest3976-21H222:10:212
1769599180,17cyclictest3985-21H222:10:212
1769599180,17cyclictest3979-21H222:10:212
1769599180,17cyclictest30969-21chrt07:31:422
1769599180,16cyclictest3983-21H222:10:212
1769599180,16cyclictest3983-21H222:10:212
1769499182,15cyclictest21-21ksoftirqd/110:16:111
17694991816,1cyclictest0-21swapper/108:40:131
17694991814,3cyclictest0-21swapper/110:10:151
17694991814,2cyclictest4099-21H222:10:211
17694991813,4cyclictest3979-21H222:10:211
1769499181,16cyclictest3991-21H222:10:211
1769499181,16cyclictest0-21swapper/110:49:591
1769499180,1cyclictest111rcu_preempt09:14:221
1769499180,17cyclictest3987-21H222:10:211
1769499180,17cyclictest3987-21H222:10:211
1769499180,17cyclictest27677-21if_eno111:15:161
1769499180,17cyclictest14550-21snapd12:05:281
1769499180,16cyclictest3983-21H222:10:211
1769499180,16cyclictest3983-21H222:10:211
1769499180,16cyclictest3981-21H222:10:211
1769499180,15cyclictest3983-21H222:10:211
1769399182,2cyclictest3987-21H222:10:210
17693991816,1cyclictest9-21ksoftirqd/007:35:360
17693991816,1cyclictest0-21swapper/012:13:300
17693991815,2cyclictest3983-21H222:10:210
17693991814,3cyclictest3985-21H222:10:210
17693991814,3cyclictest3983-21H222:10:210
17693991814,3cyclictest0-21swapper/007:21:270
1769399181,2cyclictest0-21swapper/009:20:010
17693991811,6cyclictest739-21idleruntime09:30:160
1769399181,16cyclictest7044-21nfsd411:35:170
1769399180,2cyclictest4099-21H222:10:210
1769399180,2cyclictest4099-21H222:10:210
1769399180,2cyclictest3987-21H222:10:210
1769399180,2cyclictest3985-21H222:10:210
1769399180,16cyclictest4099-21H222:10:210
1769399180,16cyclictest4099-21H222:10:210
1769399180,15cyclictest4099-21H222:10:210
1769399180,15cyclictest3979-21H222:10:210
1769399180,15cyclictest3979-21H222:10:210
17695991715,1cyclictest28-21ksoftirqd/209:45:382
17695991715,1cyclictest0-21swapper/209:40:172
17695991714,2cyclictest9584-21sendmail_mailqu07:50:192
17695991714,2cyclictest5716-21nfsd408:40:172
17695991714,2cyclictest3983-21H222:10:212
17695991714,2cyclictest3979-21H222:10:212
17695991714,2cyclictest31883-21anvil09:28:462
17695991714,2cyclictest23843-21cat07:20:132
17695991714,2cyclictest23158-21expr10:10:142
17695991714,2cyclictest14505-21snapd07:35:522
17695991714,2cyclictest1-21systemd12:16:512
1769599171,1cyclictest4099-21H222:10:212
1769599171,15cyclictest0-21swapper/211:55:152
1769599171,15cyclictest0-21swapper/211:23:322
1769599170,2cyclictest3991-21H222:10:212
1769599170,2cyclictest3053-21systemd-logind12:20:502
1769599170,2cyclictest10047-21grep08:50:132
1769599170,1cyclictest0-21swapper/209:05:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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