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2026-05-05 - 05:58
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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 Tue May 05, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22852992322,0cyclictest0-21swapper/021:55:180
2286199220,4cyclictest6491-21nfsd419:35:182
2285299221,4cyclictest5027-21cstates23:25:160
2285299221,4cyclictest5027-21cstates23:25:150
22852992117,3cyclictest0-21swapper/023:30:020
2286199200,19cyclictest843-21systemd-network21:55:572
2285299200,1cyclictest0-21swapper/023:50:120
2286199193,2cyclictest25295-21date23:05:002
2286199192,16cyclictest10336-21chrt19:44:232
22861991917,1cyclictest13351-21ntp_offset22:40:162
22861991916,2cyclictest6984-21chrt23:29:042
22861991916,2cyclictest6984-21chrt23:29:042
22861991916,2cyclictest20187-21mailstats23:50:202
22861991916,2cyclictest14947-21expr21:45:202
22861991911,4cyclictest0-21swapper/219:19:212
2285699193,1cyclictest0-21swapper/120:28:231
2285699192,16cyclictest31000-21smtpd19:21:231
22856991917,1cyclictest21-21ksoftirqd/100:15:051
2285699191,3cyclictest0-21swapper/122:00:191
2285699190,18cyclictest0-21swapper/122:13:061
2285299194,1cyclictest0-21swapper/022:39:400
22852991917,1cyclictest1274-21runrttasks19:45:210
22852991916,2cyclictest17486-21nfsd419:55:190
22852991916,2cyclictest17486-21nfsd419:55:180
22852991915,3cyclictest0-21swapper/020:10:010
2285299190,18cyclictest0-21swapper/000:09:350
2285299190,16cyclictest3985-21H222:10:210
2286199182,15cyclictest0-21swapper/200:02:562
22861991815,2cyclictest3991-21H222:10:212
2286199180,17cyclictest25376-21dump-pmu-power21:10:002
2286199180,16cyclictest2007-21systemd-journal22:30:242
2286199180,15cyclictest3991-21H222:10:212
2285699182,1cyclictest15210-21cat21:45:211
2285699182,1cyclictest130622chrt19:49:261
22856991816,1cyclictest0-21swapper/122:55:241
22856991816,1cyclictest0-21swapper/120:56:581
22856991816,1cyclictest0-21swapper/119:42:581
22856991814,2cyclictest3979-21H222:10:211
22856991813,2cyclictest3979-21H222:10:211
2285699181,2cyclictest29736-21nfsd423:10:171
2285699181,16cyclictest5197-21seq21:30:131
2285699180,3cyclictest399-20systemd-journal00:15:011
2285699180,2cyclictest3985-21H222:10:211
2285699180,2cyclictest3979-21H222:10:211
2285699180,1cyclictest0-21swapper/123:26:301
2285699180,1cyclictest0-21swapper/123:26:301
2285699180,1cyclictest0-21swapper/100:05:181
22852991816,1cyclictest9-21ksoftirqd/023:41:420
22852991815,2cyclictest1970-21tr21:25:130
22852991814,3cyclictest31336-21awk20:20:180
22852991814,3cyclictest0-21swapper/020:34:150
2285299180,3cyclictest15945-21lxd20:56:490
2285299180,17cyclictest23058-21nfsd422:00:200
2285299180,17cyclictest0-21swapper/022:49:340
2285299180,17cyclictest0-21swapper/019:15:140
22861991715,1cyclictest0-21swapper/222:45:142
22861991715,1cyclictest0-21swapper/220:44:212
22861991714,2cyclictest6567-21cpuspeed_turbos00:25:142
22861991714,2cyclictest3981-21H222:10:212
22861991714,2cyclictest32172-21uname21:20:172
22861991714,2cyclictest30621-21expr22:15:122
22861991714,2cyclictest29821-21nfsd423:10:172
22861991714,2cyclictest28984-21cstates19:20:142
22861991714,1cyclictest0-21swapper/219:46:592
2286199171,1cyclictest0-21swapper/220:20:162
2286199170,2cyclictest8747-21grep23:30:182
2286199170,2cyclictest6328-21ntp_offset21:30:182
2286199170,2cyclictest5059-21proc_pri20:30:192
2286199170,2cyclictest455-21plymouthd23:15:132
2286199170,2cyclictest3987-21H222:10:212
2286199170,2cyclictest3414-21master20:45:112
2286199170,2cyclictest26537-21interrupts23:05:182
2286199170,2cyclictest12358-21ls21:40:212
2286199170,1cyclictest0-21swapper/223:36:122
2286199170,1cyclictest0-21swapper/200:05:262
2286199170,16cyclictest9798-21http_loadtime22:35:132
2286199170,16cyclictest7686-21egrep21:35:132
2286199170,16cyclictest5601-21lxd20:56:502
2286199170,16cyclictest3989-21H222:10:212
2286199170,16cyclictest382-21/usr/sbin/munin20:25:112
2286199170,16cyclictest3784-21timerwakeupswit23:20:212
2286199170,16cyclictest32067-21expr19:25:142
2286199170,16cyclictest28597-21grep20:15:182
2286199170,16cyclictest27463-21grep22:10:132
2286199170,16cyclictest25911-21ntpq22:05:192
2286199170,16cyclictest2494-21sort21:25:152
2286199170,16cyclictest24453-21runrttasks22:05:012
2286199170,16cyclictest21677-21pzem_current22:55:202
2286199170,16cyclictest20447-21cat21:00:142
2286199170,16cyclictest15199-21switchtime19:50:222
2286199170,16cyclictest14495-21snapd21:13:152
2286199170,16cyclictest12481-21fschecks_time00:35:132
2286199170,16cyclictest0-21swapper/223:46:042
22856991714,2cyclictest8473-21if_enp1s021:35:161
22856991714,2cyclictest8210-21timerwakeupswit22:30:201
22856991714,2cyclictest4651-21latency22:25:181
22856991714,2cyclictest31521-21nvmesmart_nvme022:15:171
22856991714,2cyclictest23545-21fschecks_count21:05:171
22856991714,2cyclictest2147-21egrep19:30:131
22856991714,2cyclictest16749-21/usr/sbin/munin21:50:141
22856991714,2cyclictest14506-21snapd23:37:571
22856991714,2cyclictest13963-21chrt22:40:581
22856991714,2cyclictest12614-21chrt21:41:391
22856991713,3cyclictest3981-21H222:10:211
2285699171,15cyclictest31126-21latency20:20:161
2285699171,15cyclictest16503-21timerandwakeup22:45:201
2285699170,2cyclictest9737-21expr20:40:131
2285699170,2cyclictest3981-21H222:10:211
2285699170,2cyclictest28766-21cat21:15:131
2285699170,2cyclictest25755-21sed20:10:171
2285699170,2cyclictest21265-21sort21:00:171
2285699170,2cyclictest16757-21expr19:55:141
2285699170,2cyclictest16757-21expr19:55:141
2285699170,2cyclictest13538-21/usr/sbin/munin19:50:121
2285699170,2cyclictest12374-21cstates20:45:141
2285699170,16cyclictest9317-21cat22:35:121
2285699170,16cyclictest7271-21sshd19:37:141
2285699170,16cyclictest5930-21cron00:25:001
2285699170,16cyclictest28939-21systemctl20:15:211
2285699170,16cyclictest26564-21smtpd22:06:521
2285699170,16cyclictest25043-21timerwakeupswit19:10:221
2285699170,16cyclictest23346-21apt-key23:55:211
2285699170,16cyclictest18122-21cut22:50:161
2285699170,16cyclictest1775-21/usr/sbin/munin21:25:131
2285699170,16cyclictest1526-21lxd23:50:341
2285699170,16cyclictest1515-21lxd21:58:501
2285699170,15cyclictest8963-21latency_hist20:40:001
2285699170,15cyclictest3985-21H222:10:211
2285299172,1cyclictest0-21swapper/021:00:170
22852991715,1cyclictest0-21swapper/000:35:150
22852991714,2cyclictest3989-21H222:10:210
22852991714,2cyclictest30354-21cut00:10:130
22852991714,2cyclictest24742-21expr22:05:130
22852991714,2cyclictest23232-21cat23:55:200
22852991714,2cyclictest1899-21nfsd400:15:190
22852991714,2cyclictest1035-21thermald20:15:210
2285299171,15cyclictest9-21ksoftirqd/023:21:060
2285299170,2cyclictest8924-21sleep20:40:000
2285299170,2cyclictest7675-21perf19:40:010
2285299170,2cyclictest7431-21/usr/sbin/munin22:30:160
2285299170,2cyclictest5497-21timerwakeupswit22:25:220
2285299170,2cyclictest4035-21H222:10:210
2285299170,2cyclictest3677-21tr00:20:100
2285299170,2cyclictest3179-21latency_hist22:25:000
2285299170,2cyclictest31721-21expr23:15:130
2285299170,2cyclictest24257-21expr23:00:180
2285299170,2cyclictest13243-21nfsd420:45:180
2285299170,2cyclictest1079-21cups-browsed21:50:200
2285299170,16cyclictest9622-21sed19:40:190
2285299170,16cyclictest8877-21nfsd421:35:180
2285299170,16cyclictest7011-21fschecks_time00:25:150
2285299170,16cyclictest3987-21H222:10:210
2285299170,16cyclictest25642-21grep00:00:190
2285299170,16cyclictest2007-21systemd-journal20:04:450
2285299170,16cyclictest16652-21chrt20:50:360
2285299170,16cyclictest14499-21snapd21:13:150
2285299170,16cyclictest14348-21grep21:45:160
22861991614,1cyclictest0-21swapper/221:50:132
22861991614,1cyclictest0-21swapper/220:50:182
22861991614,1cyclictest0-21swapper/220:05:162
22861991614,1cyclictest0-21swapper/220:00:152
22861991614,1cyclictest0-21swapper/219:55:142
22861991614,1cyclictest0-21swapper/219:55:142
22861991614,1cyclictest0-21swapper/219:30:142
22861991614,1cyclictest0-21swapper/219:10:162
2286199160,1cyclictest3428-21/usr/sbin/munin22:25:132
2286199160,1cyclictest0-21swapper/220:35:102
2286199160,15cyclictest9290-21cpuspeed_turbos00:30:132
2286199160,15cyclictest30489-21expr00:10:132
2286199160,15cyclictest26058-21expr20:10:182
2286199160,15cyclictest0-21swapper/222:20:172
22856991614,1cyclictest27121-21expr19:15:191
22856991614,1cyclictest0-21swapper/121:20:111
22856991614,1cyclictest0-21swapper/120:50:091
22856991614,1cyclictest0-21swapper/120:30:201
22856991614,1cyclictest0-21swapper/120:05:171
22856991614,1cyclictest0-21swapper/120:00:101
22856991614,1cyclictest0-21swapper/119:25:141
2285699160,2cyclictest23662-21idleruntime23:00:161
2285699160,15cyclictest0-21swapper/122:20:141
2285699160,15cyclictest0-21swapper/121:10:141
2285699160,15cyclictest0-21swapper/100:30:151
2285699160,15cyclictest0-21swapper/100:25:101
2285699160,14cyclictest0-21swapper/100:36:481
22852991614,1cyclictest30658-21expr22:15:120
22852991614,1cyclictest119482sleep022:40:100
22852991614,1cyclictest0-21swapper/023:35:130
22852991614,1cyclictest0-21swapper/021:40:140
22852991614,1cyclictest0-21swapper/021:30:170
22852991614,1cyclictest0-21swapper/021:20:180
22852991614,1cyclictest0-21swapper/021:15:150
22852991614,1cyclictest0-21swapper/019:10:180
22852991614,1cyclictest0-21swapper/000:30:080
22852991613,2cyclictest24118-21nfsd421:05:210
2285299160,2cyclictest2851-21fschecks_time19:30:150
2285299160,1cyclictest0-21swapper/022:10:130
2285299160,15cyclictest31693-21/usr/sbin/munin19:25:210
2285299160,15cyclictest29556-21sed23:10:160
2285299160,15cyclictest13735-21cpuspeed_turbos19:50:140
2285299160,15cyclictest0-21swapper/022:50:150
2285299160,15cyclictest0-21swapper/020:25:130
2285299160,15cyclictest0-21swapper/020:15:000
2285299160,15cyclictest0-21swapper/019:20:140
2286199150,14cyclictest0-21swapper/221:15:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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