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2026-06-01 - 00:38
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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 Sun May 31, 2026 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20045992314,5cyclictest0-21swapper/007:15:180
20045992311,5cyclictest24576-21grep12:00:110
2004799220,19cyclictest0-21swapper/212:19:592
2004699220,18cyclictest0-21swapper/109:10:001
2004699210,17cyclictest0-21swapper/108:33:571
2004599217,13cyclictest0-21swapper/011:49:110
2004599210,3cyclictest30195-21cpuspeed_turbos12:10:140
20047992018,1cyclictest0-21swapper/210:22:582
20047992016,3cyclictest0-21swapper/209:05:182
2004699200,19cyclictest843-21systemd-network11:00:211
2004599204,15cyclictest870-21systemd-logind11:21:520
2004599202,17cyclictest0-21swapper/007:45:210
20045992017,2cyclictest3991-21H222:10:210
2004599200,17cyclictest3633-21grep12:20:120
20047991917,1cyclictest0-21swapper/211:14:492
20047991914,1cyclictest0-21swapper/212:04:462
2004799191,17cyclictest0-21swapper/207:19:102
2004799190,2cyclictest3981-21H222:10:212
2004799190,16cyclictest3985-21H222:10:212
2004799190,16cyclictest3983-21H222:10:212
20046991917,1cyclictest21-21ksoftirqd/111:55:011
20046991917,1cyclictest21-21ksoftirqd/111:34:471
20046991914,4cyclictest455-21plymouthd08:51:031
2004699191,17cyclictest0-21swapper/111:09:181
2004599193,15cyclictest0-21swapper/009:10:210
20045991916,2cyclictest4099-21H222:10:210
2004599190,16cyclictest3981-21H222:10:210
2004799182,1cyclictest0-21swapper/212:13:272
2004799182,1cyclictest0-21swapper/211:35:182
2004799182,15cyclictest14072sleep207:31:312
20047991815,2cyclictest3976-21H222:10:212
20047991815,2cyclictest24595-21chrt08:15:042
20047991815,2cyclictest24595-21chrt08:15:042
20047991815,2cyclictest20446-21ls10:00:002
20047991814,3cyclictest4464-21tune2fs09:30:142
20047991814,3cyclictest3979-21H222:10:212
2004799181,15cyclictest0-21swapper/208:36:542
2004799180,3cyclictest23750-21cpuspeed_turbos10:05:142
2004799180,2cyclictest4035-21H222:10:212
2004799180,2cyclictest3989-21H222:10:212
2004799180,2cyclictest3987-21H222:10:212
2004799180,2cyclictest3987-21H222:10:212
2004799180,2cyclictest20255-21grep10:55:132
2004799180,2cyclictest17978-21latency_hist09:55:012
2004799180,17cyclictest455-21plymouthd10:45:132
2004799180,16cyclictest3976-21H222:10:212
2004699184,9cyclictest12604-21perf11:40:001
2004699182,15cyclictest0-21swapper/110:55:171
2004699182,15cyclictest0-21swapper/109:16:421
20046991816,1cyclictest0-21swapper/111:40:121
20046991816,1cyclictest0-21swapper/108:55:351
20046991815,2cyclictest3979-21H222:10:211
20046991814,3cyclictest843-21systemd-network07:10:231
20046991814,3cyclictest3979-21H222:10:211
2004699181,2cyclictest3981-21H222:10:211
2004699180,2cyclictest4035-21H222:10:211
2004699180,2cyclictest3989-21H222:10:211
2004699180,2cyclictest3981-21H222:10:211
2004699180,1cyclictest0-21swapper/112:28:151
2004699180,15cyclictest3987-21H222:10:211
20045991816,1cyclictest9-21ksoftirqd/011:04:260
20045991816,1cyclictest0-21swapper/010:29:380
20045991814,2cyclictest4035-21H222:10:210
2004599181,2cyclictest6938-21sendmail-msp08:40:000
2004599181,16cyclictest11783-21tr12:35:140
2004599180,3cyclictest7664-21perf07:45:000
2004599180,3cyclictest21220-21perf11:55:000
2004599180,2cyclictest3976-21H222:10:210
2004599180,1cyclictest0-21swapper/011:10:540
2004599180,17cyclictest3991-21H222:10:210
2004599180,17cyclictest3979-21H222:10:210
2004599180,17cyclictest3979-21H222:10:210
2004599180,17cyclictest26247-21expr07:20:130
20047991715,1cyclictest28-21ksoftirqd/210:30:112
20047991715,1cyclictest0-21swapper/208:40:142
20047991715,1cyclictest0-21swapper/208:40:132
20047991714,2cyclictest31608-21nfsd409:20:192
20047991714,2cyclictest30096-21sed09:20:012
20047991714,2cyclictest16039-21perf08:55:012
2004799171,2cyclictest14500-21snapd09:42:582
2004799170,2cyclictest4080-21nfsd410:25:172
2004799170,2cyclictest3989-21H222:10:212
2004799170,2cyclictest3989-21H222:10:212
2004799170,2cyclictest25713-21cut11:05:142
2004799170,2cyclictest22255-21expr08:10:122
2004799170,2cyclictest21297-21expr10:00:142
2004799170,2cyclictest17915-21switchtime08:00:222
2004799170,2cyclictest10151-21lxd09:46:422
2004799170,16cyclictest989-21gmain12:35:392
2004799170,16cyclictest8272-21expr07:45:152
2004799170,16cyclictest3991-21H222:10:212
2004799170,16cyclictest3987-21H222:10:212
2004799170,16cyclictest3981-21H222:10:212
2004799170,16cyclictest3981-21H222:10:212
2004799170,16cyclictest31408-21expr08:25:142
2004799170,16cyclictest27707-21nfsd410:10:162
2004799170,16cyclictest20477-21proc_pri08:05:212
2004799170,16cyclictest18985-21sort11:50:122
2004799170,16cyclictest18107-21switchtime08:55:222
2004799170,16cyclictest10728-21apt-config08:45:012
20046991715,1cyclictest0-21swapper/111:55:171
20046991715,1cyclictest0-21swapper/110:45:171
20046991715,1cyclictest0-21swapper/108:25:201
20046991715,1cyclictest0-21swapper/108:20:141
20046991714,2cyclictest3976-21H222:10:211
20046991714,2cyclictest3788-21expr12:20:121
20046991714,2cyclictest27992-21pzem10:10:181
20046991714,2cyclictest16407-21tr08:00:141
20046991714,2cyclictest13042-21expr09:45:141
20046991714,2cyclictest0-21swapper/107:50:131
2004699171,2cyclictest24959-21cut12:00:121
2004699171,15cyclictest3991-21H222:10:211
2004699171,15cyclictest22638-21idleruntime08:10:141
2004699170,2cyclictest3985-21H222:10:211
2004699170,2cyclictest20523-21nfsd409:00:191
2004699170,2cyclictest16168-21apache_accesses11:45:111
2004699170,2cyclictest1316-21vmstat07:30:221
2004699170,1cyclictest3983-21H222:10:211
2004699170,1cyclictest3983-21H222:10:211
2004699170,17cyclictest0-21swapper/111:10:581
2004699170,16cyclictest863-21avahi-daemon10:40:211
2004699170,16cyclictest6850-21apt-config09:35:021
2004699170,16cyclictest5963-21find08:35:201
2004699170,16cyclictest4438-21fschecks_time09:30:131
2004699170,16cyclictest4099-21H222:10:211
2004699170,16cyclictest4099-21H222:10:211
2004699170,16cyclictest3983-21H222:10:211
2004699170,16cyclictest3979-21H222:10:211
2004699170,16cyclictest3335-21sed07:35:181
2004699170,16cyclictest19425-21cat08:05:151
2004699170,16cyclictest15283-21timerandwakeup07:55:231
2004699170,16cyclictest0-21swapper/107:29:551
2004699170,15cyclictest0-21swapper/109:10:141
2004599172,1cyclictest9-21ksoftirqd/008:40:020
2004599172,1cyclictest9-21ksoftirqd/008:40:020
20045991715,1cyclictest0-21swapper/007:30:180
20045991714,2cyclictest399-20systemd-journal07:14:560
20045991714,2cyclictest3985-21H222:10:210
20045991714,2cyclictest3976-21H222:10:210
20045991714,2cyclictest25112-21pzem_energy10:05:200
20045991714,2cyclictest22843-21cat08:10:150
20045991714,2cyclictest2007-21systemd-journal09:27:210
20045991714,2cyclictest17587-21nfsd408:00:200
20045991714,2cyclictest14499-21snapd11:07:570
20045991714,2cyclictest11953-21ls08:45:180
20045991714,2cyclictest0-21swapper/009:00:130
20045991714,2cyclictest0-21swapper/007:55:140
20045991712,4cyclictest399-20systemd-journal10:38:590
2004599171,15cyclictest3989-21H222:10:210
2004599171,15cyclictest223262chrt10:59:280
2004599171,15cyclictest0-21swapper/009:55:210
2004599170,2cyclictest3987-21H222:10:210
2004599170,2cyclictest22067-21netstat10:00:190
2004599170,2cyclictest14495-21snapd08:27:580
2004599170,2cyclictest11552-21cat12:35:010
2004599170,1cyclictest0-21swapper/010:17:430
2004599170,1cyclictest0-21swapper/007:35:220
2004599170,16cyclictest28537-21/usr/sbin/munin07:25:130
2004599170,16cyclictest28409-21awk12:05:200
2004599170,16cyclictest27776-21acpi08:20:110
2004599170,16cyclictest26940-21munin-run08:20:000
2004599170,16cyclictest26940-21munin-run08:20:000
2004599170,16cyclictest2007-21systemd-journal11:37:000
2004599170,16cyclictest14781-21grep11:40:170
2004599170,16cyclictest12580-21/usr/sbin/munin09:45:120
2004599170,16cyclictest11019-21cpuspeed_turbos07:50:130
2004599170,15cyclictest3989-21H222:10:210
20047991614,1cyclictest21434-21sed07:10:182
20047991614,1cyclictest0-21swapper/209:25:172
20047991614,1cyclictest0-21swapper/207:40:142
20047991613,2cyclictest4035-21H222:10:212
20047991613,2cyclictest26213-21expr07:20:122
2004799160,1cyclictest0-21swapper/209:00:142
2004799160,15cyclictest3983-21H222:10:212
2004799160,15cyclictest2135-21dpkg07:35:132
2004799160,15cyclictest10952-21expr07:50:142
2004799160,15cyclictest0-21swapper/209:35:142
2004799160,15cyclictest0-21swapper/208:30:012
2004799160,15cyclictest0-21swapper/207:25:142
2004799160,0cyclictest0-21swapper/210:19:582
20046991614,1cyclictest0-21swapper/110:50:161
20046991614,1cyclictest0-21swapper/110:50:161
20046991614,1cyclictest0-21swapper/107:15:141
20046991612,2cyclictest24765-21grep08:15:141
20046991612,2cyclictest24765-21grep08:15:141
2004699160,1cyclictest0-21swapper/109:25:131
2004699160,1cyclictest0-21swapper/109:20:131
2004699160,15cyclictest9871-21apache_processe09:40:111
2004699160,15cyclictest8037-21sh07:45:011
2004699160,15cyclictest27043-21nfsd407:20:181
2004699160,15cyclictest20872-21apt-get10:00:121
2004699160,15cyclictest0-21swapper/111:20:091
2004699160,15cyclictest0-21swapper/109:50:111
2004699160,15cyclictest0-21swapper/107:40:201
20045991614,1cyclictest0-21swapper/009:35:210
20045991614,1cyclictest0-21swapper/009:22:480
20045991614,1cyclictest0-21swapper/009:19:440
20045991614,1cyclictest0-21swapper/009:05:190
20045991614,1cyclictest0-21swapper/008:55:180
20045991613,2cyclictest1763-21expr08:30:160
20045991613,2cyclictest16745-21grep09:50:170
2004599160,2cyclictest11078-21nfsd409:40:180
2004599160,1cyclictest26451-21/usr/sbin/munin10:10:090
2004599160,15cyclictest3835-21tr09:30:110
2004599160,15cyclictest15608-21timerwakeupswit08:50:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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