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2026-07-18 - 07:10
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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 Jul 18, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30529992312,1cyclictest0-21swapper/223:33:362
30529992312,1cyclictest0-21swapper/223:33:352
3052899220,21cyclictest843-21systemd-network20:16:401
3052799220,4cyclictest0-21swapper/023:25:160
3052799220,17cyclictest0-21swapper/000:05:010
3052999210,20cyclictest843-21systemd-network23:23:322
3052799214,11cyclictest0-21swapper/021:12:230
3052999204,15cyclictest0-21swapper/223:52:582
3052999204,15cyclictest0-21swapper/220:24:592
30528992016,3cyclictest0-21swapper/122:56:501
30529991917,1cyclictest0-21swapper/222:09:112
30529991916,2cyclictest6117-21wc19:20:212
3052999190,18cyclictest0-21swapper/221:00:222
30528991916,2cyclictest5010-21wc22:10:181
30528991914,4cyclictest11075-21cat20:30:011
3052799190,15cyclictest0-21swapper/000:16:510
3052999182,15cyclictest14162-21cpuspeed_turbos20:35:142
3052999182,15cyclictest0-21swapper/223:25:152
30529991816,1cyclictest0-21swapper/223:57:302
30529991814,3cyclictest0-21swapper/222:29:052
3052999180,17cyclictest843-21systemd-network21:52:262
3052999180,15cyclictest3979-21H222:10:212
3052899183,1cyclictest0-21swapper/121:33:041
3052899182,15cyclictest10901-21latency22:20:161
3052899182,15cyclictest0-21swapper/121:35:211
30528991816,1cyclictest0-21swapper/122:40:001
30528991816,1cyclictest0-21swapper/121:49:141
30528991815,2cyclictest29413-21cut21:00:161
30528991814,3cyclictest22508-21systemctl23:40:011
30528991814,3cyclictest0-21swapper/121:15:181
30528991812,3cyclictest0-21swapper/119:25:141
3052899181,16cyclictest11604-21grep00:15:191
3052899180,2cyclictest3991-21H222:10:211
3052799182,15cyclictest0-21swapper/021:01:160
30527991815,2cyclictest7755-21cut22:15:150
30527991815,2cyclictest6772-21cut22:15:000
30527991815,2cyclictest22523-21cut22:40:170
3052799180,3cyclictest13306-21basename21:30:010
3052799180,15cyclictest0-21swapper/020:19:270
30529991716,1cyclictest28-21ksoftirqd/222:33:532
30529991714,2cyclictest8272-21nfsd419:25:172
30529991714,2cyclictest6025-21chrt22:12:342
30529991714,2cyclictest4563-21sshd00:05:082
30529991714,2cyclictest32718-21date22:05:012
30529991714,2cyclictest2778-21cat20:15:142
30529991714,2cyclictest2449-21expr21:10:142
30529991714,2cyclictest2359-21cat19:15:192
30529991714,2cyclictest23547-21smtpd22:43:272
30529991714,2cyclictest22252-21sed23:38:582
30529991714,2cyclictest17065-21tune2fs21:35:152
30529991714,2cyclictest14504-21snapd21:23:092
30529991714,2cyclictest12335-21chrt00:15:282
3052999171,15cyclictest28425-21chrt20:01:562
3052999170,2cyclictest8592-21processes22:15:192
3052999170,2cyclictest6032-21cat21:15:152
3052999170,2cyclictest31055-21expr19:10:132
3052999170,2cyclictest28404-21awk22:50:202
3052999170,2cyclictest27782-21timerandwakeup20:55:232
3052999170,2cyclictest24363-21pzem_current20:50:222
3052999170,2cyclictest23673-21chrt19:55:142
3052999170,2cyclictest1-21systemd22:38:592
3052999170,16cyclictest8633-21apache_volume20:25:132
3052999170,16cyclictest4058-21fschecks_count23:05:152
3052999170,16cyclictest4058-21fschecks_count23:05:142
3052999170,16cyclictest31983-21/usr/sbin/munin20:10:102
3052999170,16cyclictest27669-21expr21:55:142
3052999170,16cyclictest26669-21cat22:50:012
3052999170,16cyclictest2390-21python323:05:012
3052999170,16cyclictest23514-21munin-plugin-st19:55:012
3052999170,16cyclictest22411-21sed00:35:162
3052999170,16cyclictest21335-21nfsd420:45:182
3052999170,16cyclictest20433-21sed21:40:162
3052999170,16cyclictest16869-21ls00:25:152
3052999170,16cyclictest15945-21lxd20:42:512
3052999170,16cyclictest14403-21hddtemp_smartct21:30:162
3052999170,16cyclictest12580-21awk20:30:162
3052999170,16cyclictest11092-21grep22:20:172
3052899172,1cyclictest1347-21lxd23:12:411
30528991715,1cyclictest0-21swapper/100:25:161
30528991714,2cyclictest8369-21cpuspeed_turbos21:20:131
30528991714,2cyclictest6980-21package-data-do00:08:471
30528991714,2cyclictest3004-21gpgv23:05:011
30528991714,2cyclictest3004-21gpgv23:05:001
30528991714,2cyclictest28730-21nfsd421:55:191
30528991714,2cyclictest22917-21apache_accesses23:40:101
30528991714,2cyclictest17729-21cron19:45:001
30528991714,2cyclictest15669-21ls22:30:131
3052899171,1cyclictest21524-21expr22:40:131
3052899171,15cyclictest207342chrt00:32:581
3052899171,15cyclictest18883-21http_loadtime19:45:151
3052899170,2cyclictest7122-21apache_accesses22:15:111
3052899170,2cyclictest31219-21expr19:10:141
3052899170,2cyclictest27440-21proc_pri20:55:211
3052899170,2cyclictest20735-21ntp_states21:40:191
3052899170,2cyclictest20337-21cut20:45:151
3052899170,2cyclictest1973-21cron20:15:001
3052899170,2cyclictest14550-21snapd20:03:091
3052899170,2cyclictest14504-21snapd23:17:581
3052899170,16cyclictest8318-21fschecks_time00:10:151
3052899170,16cyclictest29103-21cpu20:05:131
3052899170,16cyclictest26564-21uname23:45:151
3052899170,16cyclictest24102-21apache_processe22:45:111
3052899170,16cyclictest16631-21sshd23:27:061
3052899170,16cyclictest1085-21gdbus00:35:201
3052899170,15cyclictest12214-21expr23:20:131
3052799172,1cyclictest9-21ksoftirqd/022:22:480
3052799172,1cyclictest0-21swapper/021:30:180
30527991715,1cyclictest0-21swapper/023:30:200
30527991715,1cyclictest0-21swapper/023:30:200
30527991714,2cyclictest27819-21proc_pri20:00:180
30527991714,2cyclictest16969-21wc22:30:200
30527991714,2cyclictest13508-21expr00:20:140
30527991713,3cyclictest3991-21H222:10:210
3052799171,2cyclictest31278-21expr19:10:130
3052799171,15cyclictest224112chrt20:50:000
3052799170,2cyclictest993-21dbus-daemon20:05:200
3052799170,2cyclictest5701-21ntpq19:20:180
3052799170,2cyclictest3414-21master20:55:420
3052799170,2cyclictest28760-21expr23:50:140
3052799170,2cyclictest20115-21pzem_current00:30:200
3052799170,16cyclictest9069-21chrt23:15:110
3052799170,16cyclictest8133-21dpkg20:25:010
3052799170,16cyclictest3985-21H222:10:210
3052799170,16cyclictest32167-21cat23:55:160
3052799170,16cyclictest31110-21systemctl22:55:230
3052799170,16cyclictest3097-21apt-config23:05:000
3052799170,16cyclictest3097-21apt-config23:05:000
3052799170,16cyclictest24157-21awk20:50:200
3052799170,16cyclictest2363-21sed23:05:000
3052799170,16cyclictest22018-21fschecks_time00:35:150
3052799170,16cyclictest21655-21latency_hist21:45:010
3052799170,16cyclictest18433-21expr19:45:140
3052799170,16cyclictest16130-21cat00:25:110
3052799170,16cyclictest14505-21snapd20:30:500
3052799170,16cyclictest13203-21fschecks_count22:25:140
3052799170,16cyclictest1230-21systemctl20:10:200
3052799170,16cyclictest1-21systemd21:38:590
3052799170,16cyclictest11832-21egrep23:20:130
3052799170,15cyclictest0-21swapper/022:00:190
30529991614,1cyclictest0-21swapper/223:10:152
30529991614,1cyclictest0-21swapper/222:55:182
30529991614,1cyclictest0-21swapper/219:47:042
30529991614,1cyclictest0-21swapper/219:40:192
30529991613,2cyclictest455-21plymouthd23:15:162
3052999160,1cyclictest31862-21expr21:05:142
3052999160,15cyclictest7641-21/usr/sbin/munin00:10:122
3052999160,15cyclictest26109-21expr23:45:122
3052999160,15cyclictest23503-21df23:40:132
3052999160,15cyclictest11477-21cat21:25:142
3052999160,15cyclictest0-21swapper/221:45:162
3052999160,15cyclictest0-21swapper/220:05:142
3052999160,15cyclictest0-21swapper/200:30:122
3052999160,15cyclictest0-21swapper/200:20:112
3052999160,15cyclictest0-21swapper/200:00:142
30528991614,1cyclictest843-21systemd-network22:27:251
30528991614,1cyclictest24882-21grep21:50:141
30528991614,1cyclictest0-21swapper/123:55:151
30528991614,1cyclictest0-21swapper/123:30:411
30528991614,1cyclictest0-21swapper/123:30:411
30528991614,1cyclictest0-21swapper/122:05:161
30528991614,1cyclictest0-21swapper/120:50:141
30528991614,1cyclictest0-21swapper/120:40:041
30528991614,1cyclictest0-21swapper/119:55:151
30528991614,1cyclictest0-21swapper/119:35:141
30528991614,1cyclictest0-21swapper/100:00:141
30528991613,2cyclictest28991-21fschecks_count23:50:161
30528991613,2cyclictest11816-21expr20:30:121
3052899160,1cyclictest32300-21apache_volume23:00:111
3052899160,15cyclictest988-21irqbalance21:25:201
3052899160,15cyclictest4943-21awk19:20:141
3052899160,15cyclictest455-21plymouthd19:50:431
3052899160,15cyclictest31455-21awk21:05:111
3052899160,15cyclictest14741-21fschecks_time20:35:151
3052899160,15cyclictest10109-21expr19:30:141
3052899160,15cyclictest0-21swapper/122:50:151
3052899160,15cyclictest0-21swapper/122:00:201
3052899160,15cyclictest0-21swapper/120:20:131
3052899160,15cyclictest0-21swapper/100:20:171
30527991614,1cyclictest0-21swapper/023:45:120
30527991614,1cyclictest0-21swapper/022:45:120
30527991614,1cyclictest0-21swapper/022:35:010
30527991614,1cyclictest0-21swapper/021:20:120
30527991613,2cyclictest1476-21if_eno122:05:130
30527991613,1cyclictest0-21swapper/019:57:180
30527991613,1cyclictest0-21swapper/019:15:160
3052799160,2cyclictest22897-21/usr/sbin/munin23:40:140
3052799160,1cyclictest4929-21expr00:05:130
3052799160,1cyclictest16714-21awk19:40:180
3052799160,1cyclictest0-21swapper/023:35:130
3052799160,1cyclictest0-21swapper/019:50:130
3052799160,15cyclictest4679-21apt-get21:15:040
3052799160,15cyclictest14195-21cpuspeed_turbos20:35:130
3052799160,15cyclictest0-21swapper/023:10:140
3052799160,15cyclictest0-21swapper/022:50:140
3052799160,15cyclictest0-21swapper/021:45:220
3052799160,15cyclictest0-21swapper/021:05:120
3052799160,15cyclictest0-21swapper/020:40:010
3052799160,15cyclictest0-21swapper/019:35:140
3052799160,15cyclictest0-21swapper/019:30:210
3052799160,15cyclictest0-21swapper/019:25:120
3052799160,15cyclictest0-21swapper/000:10:120
3052999150,15cyclictest0-21swapper/219:30:132
3052899150,14cyclictest0-21swapper/121:10:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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