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2026-06-11 - 11:04
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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 highest latencies:
System rackdslot0.osadl.org (updated Thu Jun 11, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1484992318,4cyclictest28012-21needreboot23:45:172
1484992212,5cyclictest0-21swapper/219:30:012
148399220,21cyclictest843-21systemd-network20:26:081
148399220,18cyclictest0-21swapper/123:22:111
148399202,17cyclictest0-21swapper/123:11:221
1483992015,4cyclictest30842-21nfsd420:00:191
1484991917,1cyclictest0-21swapper/221:05:002
1484991915,3cyclictest0-21swapper/219:59:332
1484991913,3cyclictest17171-21nvmesmart_nvme023:25:192
148499190,2cyclictest3979-21H222:10:212
148499190,18cyclictest0-21swapper/221:35:122
148499190,16cyclictest3979-21H222:10:212
148399198,11cyclictest0-21swapper/123:55:161
1483991917,1cyclictest0-21swapper/122:53:201
1483991917,1cyclictest0-21swapper/121:25:011
148399190,2cyclictest3981-21H222:10:211
148399190,18cyclictest0-21swapper/122:34:371
148399190,16cyclictest4099-21H222:10:211
1482991917,1cyclictest0-21swapper/022:50:380
1482991911,6cyclictest0-21swapper/023:18:250
148499182,1cyclictest0-21swapper/223:53:112
1484991816,1cyclictest28-21ksoftirqd/219:42:192
1484991816,1cyclictest0-21swapper/223:35:172
1484991816,1cyclictest0-21swapper/220:04:562
1484991816,1cyclictest0-21swapper/219:20:172
1484991815,2cyclictest22162-21munin-run22:40:012
1484991815,2cyclictest13107-21cat23:20:132
1484991813,4cyclictest24880-21latency_hist22:45:012
148499181,2cyclictest28146-21cpuspeed_turbos22:50:132
148499180,17cyclictest0-21swapper/219:17:282
148499180,15cyclictest9830-21sed20:20:162
1483991816,1cyclictest21-21ksoftirqd/122:05:061
1483991816,1cyclictest21-21ksoftirqd/121:51:121
1483991815,1cyclictest0-21swapper/100:28:261
148399181,2cyclictest10539-21expr23:15:121
148399180,17cyclictest5126-21wc19:15:141
148399180,16cyclictest1114-21lldpd19:57:261
1482991816,1cyclictest0-21swapper/022:10:200
1482991815,2cyclictest24955-21sendmail00:40:000
1482991814,3cyclictest25544-21cstates22:45:130
148299181,16cyclictest27937-21sed20:55:010
148299181,16cyclictest11546-21nfsd421:20:180
148299181,15cyclictest3979-21H222:10:210
148299180,2cyclictest3985-21H222:10:210
148299180,1cyclictest3981-21H222:10:210
148299180,17cyclictest4777-21processes20:10:210
148299180,16cyclictest0-21swapper/023:05:130
1484991715,1cyclictest0-21swapper/222:07:002
1484991714,2cyclictest843-21systemd-network21:55:122
1484991714,2cyclictest6227-21ntpq21:10:192
1484991714,2cyclictest6045-21cat23:05:162
1484991714,2cyclictest2645-21sed23:00:162
1484991714,2cyclictest2398-21perf22:05:012
1484991714,2cyclictest19841-21apache_processe20:40:112
1484991714,2cyclictest19351-21perf00:30:002
1484991714,2cyclictest15798-21apache_processe19:35:112
1484991714,2cyclictest11649-21expr00:15:122
148499171,15cyclictest0-21swapper/200:05:122
148499170,3cyclictest0-21swapper/220:32:412
148499170,2cyclictest8747-21netstat23:10:162
148499170,2cyclictest6528-21expr20:15:142
148499170,2cyclictest3985-21H222:10:212
148499170,2cyclictest3121-21netstat19:10:172
148499170,2cyclictest28441-21egrep20:55:132
148499170,2cyclictest19696-21nfsd423:30:162
148499170,2cyclictest1594-21systemd20:48:522
148499170,2cyclictest13357-21expr19:30:132
148499170,16cyclictest993-21dbus-daemon00:00:192
148499170,16cyclictest7014-21sed22:10:172
148499170,16cyclictest3925-21http_loadtime20:10:162
148499170,16cyclictest3707-21master19:53:022
148499170,16cyclictest3707-21master19:53:022
148499170,16cyclictest32735-21cat20:05:122
148499170,16cyclictest32488-21cpuspeed_turbos23:55:142
148499170,16cyclictest27712-21munin-run20:55:012
148499170,16cyclictest27416-21expr21:50:132
148499170,16cyclictest25871-21df22:45:122
148499170,16cyclictest21392-21cron19:45:012
148499170,16cyclictest18181-21cut20:35:182
148499170,16cyclictest15767-21apache_volume21:30:112
148499170,16cyclictest14699-21cat00:20:122
148499170,16cyclictest14206-21apache_volume22:25:102
148499170,16cyclictest12774-21expr22:20:162
148499170,16cyclictest11873-21tr21:20:192
148499170,16cyclictest0-21swapper/223:40:132
148499170,16cyclictest0-21swapper/221:05:072
1483991715,1cyclictest0-21swapper/123:45:141
1483991714,2cyclictest6328-21switchtime23:05:181
1483991714,2cyclictest3989-21H222:10:211
1483991714,2cyclictest3989-21H222:10:211
1483991714,2cyclictest3414-21master22:35:161
1483991714,2cyclictest17414-21sensors19:35:211
1483991714,2cyclictest17293-21pzem_power21:30:201
1483991714,2cyclictest15005-21cat20:30:141
1483991714,2cyclictest0-21swapper/100:10:001
148399171,1cyclictest0-21swapper/122:20:151
148399171,1cyclictest0-21swapper/120:50:131
148399170,2cyclictest3985-21H222:10:211
148399170,2cyclictest3983-21H222:10:211
148399170,2cyclictest27969-21cat22:50:001
148399170,2cyclictest20713-21if_lxdbr020:40:171
148399170,1cyclictest0-21swapper/122:55:201
148399170,16cyclictest771-21sshd21:01:121
148399170,16cyclictest455-21plymouthd22:25:161
148399170,16cyclictest4362-21nfsd400:00:181
148399170,16cyclictest4035-21H222:10:211
148399170,16cyclictest3709-21qmgr19:23:491
148399170,16cyclictest23002-21expr22:40:131
148399170,16cyclictest22852-21sed23:35:201
148399170,16cyclictest21646-21tr19:45:131
148399170,16cyclictest2007-21systemd-journal20:19:251
148399170,16cyclictest18699-21tr23:30:121
148399170,16cyclictest1526-21lxd19:32:501
148399170,16cyclictest1418-21apt-config23:00:011
148399170,15cyclictest3979-21H222:10:211
148299172,1cyclictest9-21ksoftirqd/020:03:410
148299172,15cyclictest3030-21gmain22:36:250
1482991715,1cyclictest18704-21tr23:30:120
1482991715,1cyclictest0-21swapper/023:35:170
1482991714,2cyclictest752-21http23:00:000
1482991714,2cyclictest31025-21nvmesmart_nvme021:55:180
1482991714,2cyclictest29146-21apt23:50:000
1482991714,2cyclictest17289-21cat20:35:120
1482991714,2cyclictest1521-21lxd00:34:350
1482991714,2cyclictest13704-21chrt20:29:150
1482991714,2cyclictest11930-21expr00:15:130
1482991714,2cyclictest10932-21/usr/sbin/munin19:25:130
1482991714,1cyclictest0-21swapper/023:03:460
148299170,2cyclictest399-20systemd-journal23:14:570
148299170,2cyclictest3981-21H222:10:210
148299170,2cyclictest16517-21idleruntime21:30:150
148299170,2cyclictest16210-21chrt22:26:010
148299170,2cyclictest14506-21snapd22:34:010
148299170,1cyclictest0-21swapper/019:24:240
148299170,1cyclictest0-21swapper/000:26:330
148299170,1cyclictest0-21swapper/000:05:500
148299170,16cyclictest9277-21sed21:15:210
148299170,16cyclictest7292-21cat21:15:010
148299170,16cyclictest4427-21cron19:15:000
148299170,16cyclictest3989-21H222:10:210
148299170,16cyclictest28691-21wc20:55:130
148299170,16cyclictest26895-21/usr/sbin/munin21:50:110
148299170,16cyclictest11124-21perf00:15:000
1484991614,1cyclictest0-21swapper/221:40:162
1484991614,1cyclictest0-21swapper/200:35:132
1484991613,2cyclictest10514-21cstates23:15:122
148499160,15cyclictest7695-21cpuspeed_turbos21:15:132
148499160,15cyclictest0-21swapper/222:55:132
148499160,15cyclictest0-21swapper/221:45:142
148499160,15cyclictest0-21swapper/221:25:132
148499160,15cyclictest0-21swapper/200:30:142
1483991614,1cyclictest0-21swapper/122:14:571
1483991614,1cyclictest0-21swapper/121:55:101
1483991614,1cyclictest0-21swapper/121:35:141
1483991614,1cyclictest0-21swapper/120:55:011
1483991614,1cyclictest0-21swapper/120:35:121
1483991614,1cyclictest0-21swapper/120:10:121
1483991614,1cyclictest0-21swapper/119:40:161
1483991614,1cyclictest0-21swapper/100:20:121
1483991613,2cyclictest21452-21grep21:40:131
148399161,1cyclictest0-21swapper/121:45:161
148399160,1cyclictest12518-21latency00:15:161
148399160,1cyclictest0-21swapper/119:25:201
148399160,15cyclictest7635-21grep21:15:141
148399160,15cyclictest4823-21acpi21:10:111
148399160,15cyclictest1778-21chrt19:10:021
148399160,15cyclictest16491-21http_loadtime23:25:161
148399160,15cyclictest14236-21nfsd421:25:161
148399160,15cyclictest10000-21nfsd400:10:161
148399160,15cyclictest0-21swapper/123:50:121
148399160,15cyclictest0-21swapper/121:05:111
148399160,15cyclictest0-21swapper/120:45:181
148399160,15cyclictest0-21swapper/120:20:151
1482991615,1cyclictest9-21ksoftirqd/023:28:100
1482991614,1cyclictest0-21swapper/023:55:220
1482991614,1cyclictest0-21swapper/023:20:120
1482991614,1cyclictest0-21swapper/022:40:200
1482991614,1cyclictest0-21swapper/021:35:160
1482991614,1cyclictest0-21swapper/020:46:320
1482991614,1cyclictest0-21swapper/020:30:120
1482991614,1cyclictest0-21swapper/020:20:120
1482991614,1cyclictest0-21swapper/019:35:130
1482991613,2cyclictest3989-21H222:10:210
1482991613,2cyclictest3987-21H222:10:210
148299160,2cyclictest31926-21cron20:05:010
148299160,2cyclictest22262-21latency_hist20:45:000
148299160,1cyclictest31822-21fschecks_count21:00:140
148299160,1cyclictest0-21swapper/020:15:150
148299160,15cyclictest4099-21H222:10:210
148299160,15cyclictest32337-21/usr/sbin/munin22:00:150
148299160,15cyclictest30125-21cat23:50:140
148299160,15cyclictest27593-21smartctl19:55:150
148299160,15cyclictest24619-21expr19:50:130
148299160,15cyclictest24619-21expr19:50:130
148299160,15cyclictest21615-21expr21:40:130
148299160,15cyclictest0-21swapper/021:05:180
148299160,15cyclictest0-21swapper/019:10:160
148299150,1cyclictest0-21swapper/021:45:120
148299150,14cyclictest0-21swapper/022:22:500
148299150,14cyclictest0-21swapper/021:25:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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