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2026-06-03 - 10:36
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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 Wed Jun 03, 2026 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
976999264,1cyclictest0-21swapper/020:16:170
976999252,5cyclictest0-21swapper/021:30:000
977999240,7cyclictest0-21swapper/222:01:112
977399240,23cyclictest3305-21fschecks_count20:05:181
976999242,1cyclictest0-21swapper/023:59:300
976999230,3cyclictest23099-21python321:40:010
977999226,15cyclictest19143-21ntp_kernel_err23:25:182
977999210,20cyclictest0-21swapper/221:51:422
976999216,14cyclictest0-21swapper/019:35:150
9779992018,1cyclictest0-21swapper/220:20:362
977999200,5cyclictest0-21swapper/222:10:012
976999202,17cyclictest0-21swapper/019:45:140
9779991916,2cyclictest31868-21ntp_offset20:55:162
977999191,17cyclictest14511-21grep22:20:152
9773991916,2cyclictest915-21nfsd420:00:181
9773991914,4cyclictest0-21swapper/120:11:051
977399191,2cyclictest3085-21postgres00:14:011
977399190,18cyclictest9924-21proc_pri20:15:201
977399190,18cyclictest399-20systemd-journal19:25:011
977399190,16cyclictest3976-21H222:10:211
976999193,11cyclictest28459-21perf23:45:000
976999193,11cyclictest28459-21perf23:45:000
976999192,2cyclictest28026-21proc_pri21:45:200
9769991916,2cyclictest15965-21seq22:21:550
9779991816,1cyclictest0-21swapper/221:10:212
9779991814,3cyclictest3981-21H222:10:212
9779991814,3cyclictest2007-21systemd-journal20:45:572
977999181,2cyclictest20620-21awk22:30:182
977999181,2cyclictest1515-21lxd23:32:342
977999181,2cyclictest0-21swapper/220:10:182
977999181,16cyclictest23783-21nfsd400:30:192
977999180,2cyclictest3987-21H222:10:212
977999180,1cyclictest0-21swapper/200:07:272
977399182,2cyclictest0-21swapper/123:14:381
9773991816,1cyclictest0-21swapper/120:54:541
9773991815,2cyclictest792-21nfsd423:50:191
9773991815,2cyclictest23272-21chrt19:42:181
9773991814,3cyclictest3981-21H222:10:211
9773991814,3cyclictest0-21swapper/123:35:121
977399180,2cyclictest3989-21H222:10:211
977399180,2cyclictest3989-21H222:10:211
977399180,17cyclictest3981-21H222:10:211
977399180,17cyclictest3401-21perf21:05:001
977399180,16cyclictest3976-21H222:10:211
976999189,4cyclictest0-21swapper/020:12:160
976999182,2cyclictest24272-21chrt20:40:320
976999182,2cyclictest18536-21http_loadtime21:30:240
976999182,2cyclictest13085-21tr21:20:160
976999182,15cyclictest0-21swapper/020:55:330
976999182,15cyclictest0-21swapper/020:20:140
9769991815,2cyclictest4062-21nfsd420:05:210
976999181,16cyclictest17544-21grep23:25:000
976999180,3cyclictest18018-21awk00:20:180
976999180,2cyclictest0-21swapper/022:05:150
976999180,16cyclictest17880-21nfsd422:25:170
976999180,16cyclictest14047-21latency_hist00:15:000
977999172,1cyclictest28-21ksoftirqd/219:26:122
9779991714,2cyclictest8034-21tr23:05:202
9779991714,2cyclictest3985-21H222:10:212
9779991714,2cyclictest32103-21taskset20:00:132
9779991714,2cyclictest32023-21dpkg21:55:132
9779991714,2cyclictest22882-21sessionclean21:39:012
9779991714,2cyclictest21159-21/usr/sbin/munin19:40:122
9779991714,2cyclictest17870-21/usr/sbin/munin20:30:192
9779991714,2cyclictest1526-21lxd00:18:342
9779991714,2cyclictest1290-21kerneloops19:16:202
9779991714,2cyclictest12886-21expr00:10:192
9779991714,2cyclictest0-21swapper/221:15:212
9779991714,1cyclictest0-21swapper/222:38:592
9779991712,3cyclictest0-21swapper/200:00:182
977999171,15cyclictest28-21ksoftirqd/221:26:312
977999170,2cyclictest3580-21sed23:00:012
977999170,2cyclictest1517-21lxd19:38:502
977999170,2cyclictest15039-21/usr/sbin/munin23:20:222
977999170,16cyclictest4362-21processes20:05:232
977999170,16cyclictest4099-21H222:10:212
977999170,16cyclictest3992-21H222:10:212
977999170,16cyclictest29328-21/usr/sbin/munin19:55:142
977999170,16cyclictest28233-21cat20:50:142
977999170,16cyclictest28034-21nvmesmart_nvme019:50:182
977999170,16cyclictest26549-21sendmail_mailst22:40:202
977999170,16cyclictest24611-21ntpq23:35:172
977999170,16cyclictest2235-21awk21:00:192
977999170,16cyclictest17407-21expr19:30:102
977999170,16cyclictest1517-21lxd22:48:502
977999170,16cyclictest14500-21snapd20:43:252
977999170,16cyclictest0-21swapper/223:45:002
977999170,16cyclictest0-21swapper/223:45:002
977399172,14cyclictest0-21swapper/119:52:471
9773991716,1cyclictest21-21ksoftirqd/121:50:201
9773991715,1cyclictest118162chrt20:20:141
9773991714,2cyclictest455-21plymouthd19:34:501
9773991714,2cyclictest26759-21tr21:45:131
9773991714,2cyclictest26385-21chrt23:40:131
9773991714,2cyclictest26385-21chrt23:40:131
9773991714,2cyclictest24665-21sed22:40:011
9773991714,2cyclictest15706-21tune2fs23:20:161
977399171,16cyclictest3991-21H222:10:211
977399170,2cyclictest7837-21cut23:05:191
977399170,2cyclictest21197-21fschecks_time23:30:151
977399170,2cyclictest17921-21cut20:30:191
977399170,2cyclictest10151-21lxd22:04:511
977399170,16cyclictest6545-21latency22:05:171
977399170,16cyclictest475-21sed21:00:001
977399170,16cyclictest3991-21H222:10:211
977399170,16cyclictest3987-21H222:10:211
977399170,16cyclictest3987-21H222:10:211
977399170,16cyclictest3981-21H222:10:211
977399170,16cyclictest29022-21apt-key23:45:011
977399170,16cyclictest27321-21munin-run22:45:001
977399170,16cyclictest25443-21sed19:45:201
977399170,16cyclictest22701-21chrt21:38:151
977399170,16cyclictest21249-21ntp_states00:25:201
977399170,16cyclictest19418-21apt-get20:35:131
977399170,16cyclictest1526-21lxd20:42:511
977399170,16cyclictest1521-21lxd21:58:501
977399170,16cyclictest13757-21smartctl21:20:201
977399170,16cyclictest12539-21ntp_states22:15:181
9769991716,1cyclictest9-21ksoftirqd/000:28:140
9769991715,2cyclictest1375-21munin-node19:27:590
9769991715,1cyclictest22797-21cpuspeed_turbos00:30:150
9769991715,1cyclictest187592chrt20:32:070
9769991714,2cyclictest4035-21H222:10:210
9769991714,2cyclictest31605-21cat21:55:000
9769991714,2cyclictest23739-21munin-plugin-st19:45:020
976999171,2cyclictest14504-21snapd23:25:280
976999171,15cyclictest298812sleep020:52:410
976999171,15cyclictest0-21swapper/019:55:150
976999170,2cyclictest843-21systemd-network23:48:390
976999170,2cyclictest3979-21H222:10:210
976999170,2cyclictest13618-21nfsd423:15:160
976999170,1cyclictest0-21swapper/019:20:030
976999170,16cyclictest9831-21cstates23:10:130
976999170,16cyclictest9570-21taskset21:15:090
976999170,16cyclictest7248-21df23:05:150
976999170,16cyclictest3991-21H222:10:210
976999170,16cyclictest3991-21H222:10:210
976999170,16cyclictest3828-21date21:05:010
976999170,16cyclictest32404-21expr20:00:140
976999170,16cyclictest22270-21cpuspeed_turbos22:35:130
976999170,16cyclictest1669-21if_eno122:55:160
976999170,16cyclictest1526-21lxd22:14:500
976999170,16cyclictest1522-21lxd00:02:340
976999170,16cyclictest12230-21missed_timers22:15:170
976999170,16cyclictest11367-21grep19:10:170
976999170,15cyclictest3976-21H222:10:210
9779991614,1cyclictest0-21swapper/223:55:162
9779991614,1cyclictest0-21swapper/223:50:012
9779991614,1cyclictest0-21swapper/222:25:142
9779991614,1cyclictest0-21swapper/222:15:152
9779991614,1cyclictest0-21swapper/221:40:012
9779991614,1cyclictest0-21swapper/220:15:222
9779991614,1cyclictest0-21swapper/219:20:092
9779991613,2cyclictest12862-21expr23:15:132
9779991613,2cyclictest10974-21smartctl23:10:192
977999160,16cyclictest0-21swapper/222:50:132
977999160,16cyclictest0-21swapper/222:50:132
977999160,15cyclictest993-21dbus-daemon21:05:222
977999160,15cyclictest993-21dbus-daemon21:05:212
977999160,15cyclictest9919-21pzem_current22:10:202
977999160,15cyclictest27172-21awk21:45:142
977999160,15cyclictest19367-21sendmail_mailqu21:30:292
977999160,15cyclictest12334-21/usr/sbin/munin21:20:192
977999160,15cyclictest0-21swapper/223:50:122
977999160,15cyclictest0-21swapper/223:00:132
977999160,15cyclictest0-21swapper/219:45:182
977999160,15cyclictest0-21swapper/219:10:212
9773991614,1cyclictest7542chrt22:55:121
9773991614,1cyclictest0-21swapper/123:55:141
9773991614,1cyclictest0-21swapper/123:00:211
9773991614,1cyclictest0-21swapper/122:50:121
9773991614,1cyclictest0-21swapper/122:50:121
9773991614,1cyclictest0-21swapper/122:45:181
9773991614,1cyclictest0-21swapper/122:30:211
9773991614,1cyclictest0-21swapper/122:10:151
9773991614,1cyclictest0-21swapper/121:40:011
9773991614,1cyclictest0-21swapper/120:25:131
9773991614,1cyclictest0-21swapper/119:30:011
9773991614,1cyclictest0-21swapper/100:15:491
9773991613,2cyclictest12693-21cat23:15:121
977399160,15cyclictest9896-21expr21:15:151
977399160,15cyclictest8260-21ntp_states21:10:201
977399160,15cyclictest30267-21/usr/sbin/munin19:55:181
977399160,15cyclictest17845-21ls23:25:131
977399160,15cyclictest0-21swapper/122:25:131
977399160,15cyclictest0-21swapper/122:20:151
977399160,15cyclictest0-21swapper/100:05:161
9769991614,1cyclictest0-21swapper/022:50:150
9769991614,1cyclictest0-21swapper/022:50:150
9769991614,1cyclictest0-21swapper/022:30:150
9769991614,1cyclictest0-21swapper/022:00:140
9769991614,1cyclictest0-21swapper/020:35:120
9769991613,2cyclictest4441-21expr23:00:130
9769991613,2cyclictest26888-21sendmail_mailqu00:35:200
976999160,1cyclictest0-21swapper/023:30:140
976999160,15cyclictest7568-21perl21:10:160
976999160,15cyclictest3979-21H222:10:210
976999160,15cyclictest32045-21/usr/sbin/munin23:50:140
976999160,15cyclictest25087-21cpuspeed_turbos22:40:130
976999160,15cyclictest23324-21cpuspeed_turbos23:35:120
976999160,15cyclictest17804-21hddtemp_smartct19:30:110
976999160,15cyclictest0-21swapper/022:45:140
976999160,15cyclictest0-21swapper/021:40:020
976999160,15cyclictest0-21swapper/021:05:120
976999160,15cyclictest0-21swapper/021:05:120
977399150,1cyclictest0-21swapper/119:35:021
9769991514,1cyclictest0-21swapper/019:50:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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