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2026-07-07 - 00:04
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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 Mon Jul 06, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3060399283,19cyclictest23495-21latency_hist08:50:010
3060599225,11cyclictest0-21swapper/207:45:152
30603992214,4cyclictest0-21swapper/008:44:150
3060599213,11cyclictest9158-21python308:25:012
3060599211,17cyclictest23716-21perf10:45:002
3060399215,12cyclictest0-21swapper/011:05:160
3060499209,10cyclictest455-21plymouthd12:30:141
30603992011,3cyclictest0-21swapper/007:50:150
3060399200,2cyclictest0-21swapper/009:42:220
3060599197,11cyclictest0-21swapper/212:25:162
3060599193,2cyclictest3989-21H222:10:212
30605991916,2cyclictest8461-21cut11:15:012
30605991916,2cyclictest8461-21cut11:15:012
30605991916,2cyclictest2479-21if_lxdbr010:05:152
30605991916,2cyclictest14652-21seq08:30:502
3060499198,10cyclictest0-21swapper/110:24:001
3060499193,15cyclictest0-21swapper/110:42:221
3060499193,15cyclictest0-21swapper/108:26:151
3060499192,16cyclictest9107-21nfsd412:10:171
30604991917,1cyclictest28172-21expr09:55:131
30604991917,1cyclictest0-21swapper/109:35:011
30604991915,1cyclictest0-21swapper/107:15:191
3060499190,3cyclictest0-21swapper/110:09:541
3060399195,13cyclictest0-21swapper/010:35:160
3060399190,15cyclictest0-21swapper/010:55:140
30605991815,2cyclictest3979-21H222:10:212
30605991814,3cyclictest3979-21H222:10:212
3060599180,3cyclictest32391-21awk10:00:172
3060599180,2cyclictest5601-21lxd08:56:422
3060599180,1cyclictest0-21swapper/207:20:122
3060599180,17cyclictest3979-21H222:10:212
3060599180,17cyclictest3979-21H222:10:212
3060599180,17cyclictest3979-21H222:10:212
3060599180,17cyclictest1102-21processes09:05:202
3060599180,16cyclictest24061-21https07:55:022
3060599180,15cyclictest4035-21H222:10:212
3060599180,15cyclictest0-21swapper/211:00:572
3060499183,1cyclictest0-21swapper/111:13:361
3060499183,1cyclictest0-21swapper/111:13:361
3060499182,15cyclictest3830-21latency09:10:181
3060499182,15cyclictest0-21swapper/107:25:011
30604991816,1cyclictest0-21swapper/108:10:531
30604991815,2cyclictest11627-21ntpq07:30:171
3060499181,2cyclictest9158-21python308:25:021
3060499181,2cyclictest18746-21seq12:29:171
3060499180,4cyclictest0-21swapper/111:06:081
3060499180,17cyclictest843-21systemd-network07:55:331
3060499180,17cyclictest21970-21grep07:50:151
3060399182,15cyclictest4206-21sessionclean10:09:000
3060399182,15cyclictest24033-21ps09:45:190
30603991816,1cyclictest9-21ksoftirqd/011:38:460
3060399180,1cyclictest0-21swapper/011:54:530
30605991714,2cyclictest8927-21ntp_offset10:15:162
30605991714,2cyclictest4035-21H222:10:212
30605991714,2cyclictest3979-21H222:10:212
30605991714,2cyclictest3976-21H222:10:212
30605991714,2cyclictest30576-21awk09:00:182
30605991714,2cyclictest30576-21awk09:00:182
30605991714,2cyclictest2872-21systemd-logind07:11:522
30605991714,2cyclictest27216-21/usr/sbin/munin08:00:162
30605991714,2cyclictest15427-21seq07:39:402
30605991714,2cyclictest12588-21awk07:35:002
30605991714,2cyclictest0-21swapper/209:32:542
30605991712,1cyclictest111rcu_preempt09:50:152
3060599170,2cyclictest6137-21grep10:10:172
3060599170,2cyclictest4099-21H222:10:212
3060599170,2cyclictest3976-21H222:10:212
3060599170,2cyclictest3976-21H222:10:212
3060599170,2cyclictest23696-21perf07:55:012
3060599170,2cyclictest18581-21cat08:40:142
3060599170,2cyclictest1856-21systemd-udevd11:16:522
3060599170,2cyclictest13739-21http_loadtime10:25:172
3060599170,1cyclictest3985-21H222:10:212
3060599170,1cyclictest0-21swapper/210:57:442
3060599170,1cyclictest0-21swapper/208:14:512
3060599170,16cyclictest7865-21/usr/sbin/munin12:10:172
3060599170,16cyclictest7266-21grep09:15:172
3060599170,16cyclictest4035-21H222:10:212
3060599170,16cyclictest399-20systemd-journal09:45:002
3060599170,16cyclictest3991-21H222:10:212
3060599170,16cyclictest3989-21H222:10:212
3060599170,16cyclictest32513-21sort11:55:182
3060599170,16cyclictest27996-21/usr/sbin/munin09:55:162
3060599170,16cyclictest22693-21grep11:40:002
3060599170,16cyclictest21504-21switchtime09:40:202
3060599170,16cyclictest1526-21lxd08:18:412
3060599170,16cyclictest0-21swapper/212:20:012
30604991715,1cyclictest14601-21readlink10:25:221
30604991714,2cyclictest4099-21H222:10:211
30604991714,2cyclictest27544-21missed_timers08:55:181
30604991714,2cyclictest21417-21ntp_offset11:35:161
30604991714,2cyclictest2007-21systemd-journal07:39:191
30604991714,2cyclictest19581-21cat11:34:551
30604991712,3cyclictest7653-21cpuspeed_turbos07:25:131
3060499170,2cyclictest4099-21H222:10:211
3060499170,2cyclictest399-20systemd-journal08:35:001
3060499170,2cyclictest3989-21H222:10:211
3060499170,2cyclictest29583-21cat09:00:131
3060499170,2cyclictest29583-21cat09:00:131
3060499170,2cyclictest27324-21grep08:00:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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