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2026-05-30 - 07:18
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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 Sat May 30, 2026 00:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
593992718,0cyclictest0-21swapper/119:25:251
59399257,15cyclictest0-21swapper/123:25:121
59399240,24cyclictest0-21swapper/100:25:161
59299244,10cyclictest0-21swapper/019:25:030
59399239,0cyclictest0-21swapper/121:20:191
593992314,5cyclictest0-21swapper/123:35:201
59299225,2cyclictest14004-21nfsd423:20:160
59299222,17cyclictest0-21swapper/023:11:520
59299222,17cyclictest0-21swapper/023:11:520
59299220,18cyclictest0-21swapper/022:40:180
59399214,6cyclictest0-21swapper/122:50:131
593992113,4cyclictest0-21swapper/122:45:131
593992113,4cyclictest0-21swapper/122:45:131
59399210,20cyclictest1366-21nfsd422:00:181
59399210,18cyclictest399-20systemd-journal21:30:001
59299210,4cyclictest0-21swapper/000:38:180
59499202,2cyclictest4035-21H222:10:212
59499202,2cyclictest4035-21H222:10:212
59499200,4cyclictest0-21swapper/221:50:182
59399203,1cyclictest0-21swapper/123:18:591
592992018,1cyclictest0-21swapper/020:45:140
592992016,3cyclictest0-21swapper/000:28:090
594991916,2cyclictest3976-21H222:10:212
594991915,3cyclictest12150-21grep22:20:142
59499190,2cyclictest3991-21H222:10:212
59499190,2cyclictest3981-21H222:10:212
59499190,18cyclictest0-21swapper/223:44:382
59399190,5cyclictest0-21swapper/123:12:091
59399190,5cyclictest0-21swapper/123:12:091
59399190,18cyclictest0-21swapper/100:08:481
59299192,2cyclictest30106-21cpuspeed_turbos23:50:120
59299192,16cyclictest24185-21expr21:45:140
592991916,2cyclictest878-21in:imuxsock22:35:010
592991916,2cyclictest3981-21H222:10:210
59299190,2cyclictest3985-21H222:10:210
59299190,16cyclictest3989-21H222:10:210
59299190,16cyclictest3985-21H222:10:210
59499182,1cyclictest11025-21switchtime00:10:242
59499182,15cyclictest0-21swapper/223:49:102
59499182,15cyclictest0-21swapper/219:55:012
594991816,1cyclictest28-21ksoftirqd/200:35:562
594991816,1cyclictest21921-21cstates23:35:142
594991816,1cyclictest0-21swapper/221:41:522
594991816,1cyclictest0-21swapper/200:31:482
594991815,2cyclictest3989-21H222:10:212
594991815,2cyclictest2517-21chrt23:56:582
594991815,2cyclictest0-21swapper/221:25:512
594991814,3cyclictest3983-21H222:10:212
594991813,4cyclictest0-21swapper/219:56:342
59499180,2cyclictest3989-21H222:10:212
59499180,2cyclictest3983-21H222:10:212
59499180,2cyclictest3979-21H222:10:212
59499180,17cyclictest7060-21cut23:10:002
59499180,17cyclictest4035-21H222:10:212
59499180,17cyclictest3987-21H222:10:212
59499180,17cyclictest3976-21H222:10:212
59499180,16cyclictest4099-21H222:10:212
59499180,16cyclictest3983-21H222:10:212
59499180,16cyclictest3983-21H222:10:212
59499180,16cyclictest0-21swapper/220:30:162
59399182,15cyclictest9437-21grep22:15:141
59399182,15cyclictest21-21ksoftirqd/121:52:171
59399182,15cyclictest19598-21cat20:40:131
593991815,2cyclictest3979-21H222:10:211
593991815,2cyclictest21296-21cpuspeed_turbos21:40:141
593991814,3cyclictest3991-21H222:10:211
593991814,3cyclictest3987-21H222:10:211
59399181,16cyclictest4035-21H222:10:211
59399181,16cyclictest30510-21cpuspeed_turbos21:00:131
59399180,3cyclictest3985-21H222:10:211
59399180,3cyclictest2835-21awk00:00:001
59399180,2cyclictest3983-21H222:10:211
59399180,2cyclictest3981-21H222:10:211
59399180,1cyclictest19910-21tr22:35:141
59399180,18cyclictest0-21swapper/122:44:481
59399180,17cyclictest5495-21sed22:09:001
59399180,17cyclictest3981-21H222:10:211
59399180,17cyclictest3981-21H222:10:211
59399180,17cyclictest3976-21H222:10:211
59399180,16cyclictest3989-21H222:10:211
59299182,2cyclictest28173-21switchtime19:55:210
59299182,15cyclictest9-21ksoftirqd/021:57:020
59299182,15cyclictest12091-21grep00:15:120
592991816,1cyclictest9-21ksoftirqd/021:41:460
592991816,1cyclictest0-21swapper/020:32:140
592991815,2cyclictest6734-21expr00:05:150
592991815,2cyclictest27594-21missed_timers21:50:170
592991815,2cyclictest19192-21if_lxdbr019:40:150
592991815,2cyclictest10673-21sed22:15:210
59299180,2cyclictest3991-21H222:10:210
59299180,2cyclictest3979-21H222:10:210
59299180,2cyclictest3979-21H222:10:210
59299180,18cyclictest0-21swapper/023:41:410
59299180,17cyclictest3989-21H222:10:210
59299180,16cyclictest0-21swapper/023:47:340
59299180,15cyclictest3983-21H222:10:210
59299180,15cyclictest0-21swapper/021:25:160
594991715,1cyclictest0-21swapper/220:00:172
594991714,2cyclictest8637-21chrt21:15:212
594991714,2cyclictest7745-21processes00:05:212
594991714,2cyclictest6406-21ls19:20:002
594991714,2cyclictest5388-21grep21:10:172
594991714,2cyclictest3991-21H222:10:212
594991714,2cyclictest3989-21H222:10:212
594991714,2cyclictest3987-21H222:10:212
594991714,2cyclictest3979-21H222:10:212
594991714,2cyclictest28353-21fschecks_time20:55:142
594991714,2cyclictest19870-21switchtime21:35:222
594991714,2cyclictest19275-21expr23:30:122
594991714,2cyclictest17701-21cpuspeed_turbos00:25:152
594991714,1cyclictest0-21swapper/222:50:212
594991713,3cyclictest4035-21H222:10:212
59499171,15cyclictest26613-21expr22:45:172
59499171,15cyclictest26613-21expr22:45:172
59499170,2cyclictest865-21cpuspeed_turbos21:05:142
59499170,2cyclictest865-21cpuspeed_turbos21:05:142
59499170,2cyclictest3989-21H222:10:212
59499170,2cyclictest3989-21H222:10:212
59499170,2cyclictest3983-21H222:10:212
59499170,2cyclictest3981-21H222:10:212
59499170,2cyclictest31527-21pzem_current23:50:192
59499170,2cyclictest30662-21cpuspeed_turbos21:00:132
59499170,2cyclictest21384-21timerwakeupswit20:40:222
59499170,2cyclictest17912-21sshd23:27:312
59499170,16cyclictest9758-21expr19:25:122
59499170,16cyclictest7072-21smartctl20:15:192
59499170,16cyclictest3989-21H222:10:212
59499170,16cyclictest3989-21H222:10:212
59499170,16cyclictest3989-21H222:10:212
59499170,16cyclictest3981-21H222:10:212
59499170,16cyclictest3310-21cat22:05:132
59499170,16cyclictest21657-21fschecks_count19:45:142
59499170,16cyclictest12879-21grep23:20:122
59399172,1cyclictest0-21swapper/121:06:171
59399172,1cyclictest0-21swapper/121:06:161
593991715,1cyclictest3450-21gsd-color19:16:431
593991715,1cyclictest30997-21cpuspeed_turbos22:55:121
593991715,1cyclictest0-21swapper/121:35:151
593991715,1cyclictest0-21swapper/119:45:181
593991714,2cyclictest7500-21ps22:10:191
593991714,2cyclictest4099-21H222:10:211
593991714,2cyclictest3985-21H222:10:211
593991714,2cyclictest3318-21apache_processe00:00:121
593991714,2cyclictest3318-21apache_processe00:00:111
593991714,2cyclictest30027-21systemctl21:00:001
593991714,2cyclictest24596-21nfsd400:35:181
593991714,2cyclictest24429-21fschecks_time19:50:141
593991714,2cyclictest14499-21snapd23:32:471
59399171,15cyclictest0-21swapper/121:15:131
59399171,15cyclictest0-21swapper/120:35:221
59399170,2cyclictest4099-21H222:10:211
59399170,2cyclictest3991-21H222:10:211
59399170,2cyclictest24960-21apache_accesses20:50:111
59399170,2cyclictest2007-21systemd-journal23:46:541
59399170,16cyclictest870-21systemd-logind20:01:521
59399170,16cyclictest455-21plymouthd20:20:151
59399170,16cyclictest3991-21H222:10:211
59399170,16cyclictest3985-21H222:10:211
59399170,16cyclictest3976-21H222:10:211
59399170,16cyclictest14379-21expr22:25:121
59399170,16cyclictest14229-21cstates20:30:141
59399170,16cyclictest12498-21appstreamcli19:30:011
59399170,16cyclictest0-21swapper/123:40:131
59399170,16cyclictest0-21swapper/100:11:141
59399170,15cyclictest29730-21expr21:55:131
592991715,1cyclictest0-21swapper/022:35:010
592991714,2cyclictest6047-21apache_processe22:10:110
592991714,2cyclictest3450-21gsd-color23:00:210
592991714,2cyclictest25540-21df20:50:130
592991714,2cyclictest21102-21mailstats20:40:210
592991714,2cyclictest20515-21awk23:30:200
592991714,2cyclictest16480-21sed19:35:170
592991714,2cyclictest1100-21snmpd21:05:070
592991714,2cyclictest1100-21snmpd21:05:070
592991714,1cyclictest0-21swapper/020:06:510
59299170,2cyclictest4081-21apt-get19:15:110
59299170,2cyclictest3989-21H222:10:210
59299170,2cyclictest14504-21snapd20:10:070
59299170,2cyclictest13472-21perf20:30:010
59299170,2cyclictest12760-21expr22:20:180
59299170,2cyclictest1249-21if_err_enp1s023:55:150
59299170,16cyclictest6810-21apache_volume21:15:110
59299170,16cyclictest5671-21apache_processe20:15:120
59299170,16cyclictest455-21plymouthd22:55:120
59299170,16cyclictest3819-21cut19:15:010
59299170,16cyclictest30442-21apache_processe21:00:110
59299170,16cyclictest28210-21expr20:55:130
59299170,16cyclictest28055-21apache_accesses22:50:110
59299170,16cyclictest16589-21cat20:35:100
59299170,16cyclictest16145-21hddtemp_smartct21:30:130
59299170,16cyclictest16145-21hddtemp_smartct21:30:130
59299170,16cyclictest15799-21apache_accesses23:25:110
59299170,16cyclictest10711-21ntp_states00:10:210
59299170,16cyclictest10516-21expr21:20:140
59299170,16cyclictest1035-21thermald22:45:200
59299170,16cyclictest1035-21thermald22:45:200
59499160,15cyclictest0-21swapper/220:35:162
59499160,15cyclictest0-21swapper/220:10:132
59499160,15cyclictest0-21swapper/219:35:132
593991614,1cyclictest0-21swapper/119:35:141
59399160,15cyclictest740-21strings20:05:191
59399160,15cyclictest6258-21df20:15:141
59399160,15cyclictest26506-21apt-get19:55:131
59399160,15cyclictest12033-21apache_accesses00:15:101
592991614,1cyclictest14241-21apache_accesses22:25:100
592991614,1cyclictest0-21swapper/023:35:130
59299160,2cyclictest3983-21H222:10:210
59299160,2cyclictest24050-21expr19:50:130
59299160,15cyclictest3378-21grep00:00:130
59299160,15cyclictest3378-21grep00:00:120
59299160,15cyclictest14220-21sendmail_mailqu19:30:200
59299160,15cyclictest1100-21snmpd19:20:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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