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2026-05-11 - 06:40
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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 Mon May 11, 2026 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2601499250,1cyclictest0-21swapper/219:56:362
2600699248,14cyclictest0-21swapper/000:20:200
2601099220,18cyclictest0-21swapper/122:07:071
2601499214,16cyclictest0-21swapper/222:07:562
2601499204,1cyclictest0-21swapper/222:32:542
2601499204,15cyclictest0-21swapper/222:48:002
2601499204,15cyclictest0-21swapper/219:32:592
2601499202,17cyclictest0-21swapper/200:24:362
26014992017,2cyclictest5858-21ntp_kernel_err22:20:202
2601099203,2cyclictest13489-21latency_hist19:45:011
2600699202,17cyclictest0-21swapper/022:07:130
2600699200,19cyclictest870-21systemd-logind00:28:520
2601499192,16cyclictest23811-21plymouth21:55:202
26014991914,4cyclictest17598-21nfsd419:50:172
26014991914,3cyclictest0-21swapper/219:40:172
2601499190,18cyclictest0-21swapper/223:22:292
26010991914,4cyclictest0-21swapper/123:22:191
2601099191,17cyclictest17007-21cpuspeed_turbos21:45:131
2601099190,3cyclictest0-21swapper/119:20:171
26006991917,1cyclictest0-21swapper/022:40:210
26006991917,1cyclictest0-21swapper/021:19:400
2600699191,17cyclictest2069-21systemd-udevd21:10:510
2600699190,18cyclictest19665-21cpuspeed_turbos21:50:140
2600699190,18cyclictest0-21swapper/019:56:520
2601499182,15cyclictest28412-21missed_timers23:00:182
2601499182,15cyclictest0-21swapper/222:53:532
2601499182,15cyclictest0-21swapper/222:53:522
26014991815,2cyclictest28996-21/usr/sbin/munin19:15:212
26014991815,2cyclictest11608-21chrt20:36:292
26014991814,3cyclictest0-21swapper/223:39:002
2601499181,16cyclictest13062-21chrt20:40:142
2601499180,17cyclictest0-21swapper/221:13:342
2601499180,16cyclictest3322-21munin-plugin-st23:15:002
2601499180,16cyclictest26617-21python323:00:012
2601099182,15cyclictest28217-21cat20:10:161
26010991816,1cyclictest0-21swapper/122:32:531
26010991815,2cyclictest9953-21ntp_offset00:20:181
26010991815,2cyclictest27366-21cat21:05:181
26010991815,2cyclictest27366-21cat21:05:171
26010991815,1cyclictest0-21swapper/121:02:281
26010991814,3cyclictest0-21swapper/123:56:071
2601099181,16cyclictest23286-21chrt20:58:471
2601099180,3cyclictest8939-21sed20:35:011
2601099180,2cyclictest1829-21systemd-journal21:15:001
2601099180,17cyclictest7816-21python300:20:001
2600699182,15cyclictest9-21ksoftirqd/023:35:000
2600699181,16cyclictest2872-21systemd-logind20:34:520
2600699180,2cyclictest4099-21H222:10:210
2600699180,17cyclictest26201-21nfsd422:00:180
2600699180,16cyclictest7820-21python300:20:010
26014991715,1cyclictest27520-21cpuspeed_turbos20:10:142
26014991714,2cyclictest5901-21grep21:25:132
26014991714,2cyclictest31282-21perl22:10:142
26014991714,2cyclictest22041-21date21:55:002
26014991714,2cyclictest1896-21otd-news21:16:262
26014991714,2cyclictest18686-21idleruntime20:50:152
26014991714,1cyclictest0-21swapper/200:35:172
26014991714,1cyclictest0-21swapper/200:35:172
2601499171,1cyclictest195762chrt23:41:072
2601499171,15cyclictest0-21swapper/222:18:042
2601499170,2cyclictest3983-21H222:10:212
2601499170,2cyclictest23774-21chrt20:00:412
2601499170,2cyclictest19064-21latency_hist21:50:002
2601499170,2cyclictest16043-21sed19:50:012
2601499170,2cyclictest15966-21/usr/sbin/munin22:40:132
2601499170,2cyclictest14276-21nfsd422:35:182
2601499170,16cyclictest9803-21grep21:30:212
2601499170,16cyclictest9543-21awk22:30:002
2601499170,16cyclictest7820-21python300:20:012
2601499170,16cyclictest4691-21ls21:20:212
2601499170,16cyclictest25731-21netstat20:05:182
2601499170,16cyclictest2319-21expr19:25:152
2601499170,16cyclictest16504-21nfsd420:45:192
2601499170,16cyclictest15799-21timerandwakeup00:30:212
2601499170,16cyclictest1521-21lxd23:18:342
2601499170,16cyclictest1517-21lxd19:10:512
2601099175,11cyclictest0-21swapper/122:10:201
26010991716,1cyclictest21-21ksoftirqd/120:04:201
26010991715,1cyclictest0-21swapper/100:05:181
26010991714,2cyclictest8458-21expr19:35:151
26010991714,2cyclictest399-20systemd-journal23:00:011
26010991714,2cyclictest3979-21H222:10:211
26010991714,2cyclictest28504-21/usr/sbin/munin23:00:191
26010991714,2cyclictest22498-21expr21:55:141
26010991714,2cyclictest2189-21sendmail_mailqu23:10:211
26010991714,2cyclictest2180-21/usr/sbin/munin19:25:221
26010991714,2cyclictest13611-21perf00:30:001
26010991714,2cyclictest1114-21lldpd22:48:501
26010991714,1cyclictest0-21swapper/122:50:081
26010991714,1cyclictest0-21swapper/122:50:081
2601099171,2cyclictest4898-21nfsd423:15:181
2601099171,15cyclictest14815-21nfsd419:45:171
2601099170,2cyclictest31256-21nfsd423:05:201
2601099170,2cyclictest29669-21grep19:15:151
2601099170,2cyclictest18738-21latency_hist19:55:011
2601099170,2cyclictest17529-21apt20:50:011
2601099170,2cyclictest16700-21/usr/sbin/munin22:40:141
2601099170,2cyclictest13934-21latency_hist21:40:011
2601099170,2cyclictest10984-21/usr/sbin/munin23:25:201
2601099170,16cyclictest30147-21apache_accesses20:15:131
2601099170,16cyclictest27174-21if_lxdbr019:10:151
2601099170,16cyclictest23390-21expr23:50:151
2601099170,16cyclictest20885-21ntp_states21:50:201
2601099170,16cyclictest14262-21munin-run23:35:001
2601099170,16cyclictest13358-21expr22:35:131
26006991716,1cyclictest9-21ksoftirqd/021:00:020
26006991716,1cyclictest0-21swapper/021:10:010
26006991716,1cyclictest0-21swapper/021:10:010
26006991714,2cyclictest7469-21expr22:25:140
26006991714,2cyclictest6676-21sed21:25:170
26006991714,2cyclictest24602-21cut22:00:010
26006991714,2cyclictest22608-21needreboot22:50:180
26006991714,2cyclictest22608-21needreboot22:50:170
26006991714,2cyclictest18719-21dpkg22:45:120
26006991714,2cyclictest1521-21lxd00:14:350
26006991714,2cyclictest14431-21tr22:35:180
2600699171,2cyclictest12577-21cpuspeed_turbos20:40:130
2600699171,1cyclictest72892sleep019:31:400
2600699170,2cyclictest4832-21munin-run19:30:010
2600699170,2cyclictest18786-21nfsd423:40:190
2600699170,2cyclictest14521-21kernelversion19:45:170
2600699170,2cyclictest1100-21snmpd23:27:480
2600699170,16cyclictest9467-21tar20:35:020
2600699170,16cyclictest5542-21memory22:20:180
2600699170,16cyclictest426-21systemd-udevd23:20:520
2600699170,16cyclictest32010-21smtp23:05:360
2600699170,16cyclictest3053-21systemd-logind23:16:520
2600699170,16cyclictest27122-21cat20:10:000
2600699170,16cyclictest24907-21idleruntime22:55:140
2600699170,16cyclictest17237-21expr21:45:130
2600699170,16cyclictest1447-21cat23:10:160
2600699170,16cyclictest11346-21nvmesmart_nvme022:30:200
2600699170,16cyclictest0-21swapper/020:52:260
26014991614,1cyclictest28164-21python300:00:022
26014991614,1cyclictest27531-21wc22:05:012
26014991614,1cyclictest23127-21cpuspeed_turbos23:50:142
26014991614,1cyclictest0-21swapper/221:05:152
26014991614,1cyclictest0-21swapper/221:05:152
26014991614,1cyclictest0-21swapper/220:55:152
26014991614,1cyclictest0-21swapper/219:35:152
26014991614,1cyclictest0-21swapper/219:20:122
26014991614,1cyclictest0-21swapper/200:25:132
26014991614,1cyclictest0-21swapper/200:05:152
26014991613,2cyclictest6375-21apache_processe20:30:112
26014991613,2cyclictest3583-21apache_processe20:25:132
26014991613,2cyclictest25167-21nfsd421:00:182
26014991613,2cyclictest20313-21apt-get23:45:142
2601499160,1cyclictest399-20systemd-journal23:57:502
2601499160,1cyclictest30142-21cpuspeed_turbos23:05:152
2601499160,1cyclictest14040-21grep21:40:132
2601499160,1cyclictest0-21swapper/220:20:132
2601499160,1cyclictest0-21swapper/220:15:162
2601499160,15cyclictest0-21swapper/223:30:172
2601499160,15cyclictest0-21swapper/223:25:112
2601499160,15cyclictest0-21swapper/221:35:132
26010991614,1cyclictest0-21swapper/123:40:151
26010991614,1cyclictest0-21swapper/120:40:131
26010991614,1cyclictest0-21swapper/120:05:171
26010991614,1cyclictest0-21swapper/100:35:111
26010991614,1cyclictest0-21swapper/100:35:101
26010991614,1cyclictest0-21swapper/100:30:111
26010991613,2cyclictest3707-21master19:30:071
26010991613,2cyclictest32420-21cstates21:15:151
2601099160,2cyclictest19617-21cat19:55:151
2601099160,2cyclictest19305-21ntpq20:50:181
2601099160,2cyclictest15497-21ps21:40:191
2601099160,1cyclictest0-21swapper/122:25:141
2601099160,1cyclictest0-21swapper/120:35:131
2601099160,15cyclictest455-21plymouthd22:15:121
2601099160,15cyclictest20632-21expr23:45:151
2601099160,15cyclictest15004-21expr23:35:141
2601099160,15cyclictest0-21swapper/122:20:141
2601099160,15cyclictest0-21swapper/122:00:141
2601099160,15cyclictest0-21swapper/121:30:181
2601099160,15cyclictest0-21swapper/121:30:001
2601099160,15cyclictest0-21swapper/120:25:131
2601099160,15cyclictest0-21swapper/120:20:141
2601099160,15cyclictest0-21swapper/100:10:111
2601099160,15cyclictest0-21swapper/100:00:151
26006991614,1cyclictest30734-21/usr/sbin/munin20:15:150
26006991614,1cyclictest28672-21dpkg00:00:010
26006991614,1cyclictest0-21swapper/022:10:130
26006991614,1cyclictest0-21swapper/021:32:320
26006991614,1cyclictest0-21swapper/020:20:170
26006991614,1cyclictest0-21swapper/019:35:140
26006991614,1cyclictest0-21swapper/019:15:180
26006991614,1cyclictest0-21swapper/019:10:130
26006991613,2cyclictest17342-21sed19:50:150
2600699161,14cyclictest0-21swapper/023:50:190
2600699160,2cyclictest14721-21grep21:40:150
2600699160,2cyclictest14545-21snapd00:30:020
2600699160,1cyclictest4547-21mailstats21:20:210
2600699160,1cyclictest0-21swapper/023:00:130
2600699160,1cyclictest0-21swapper/022:15:120
2600699160,1cyclictest0-21swapper/020:00:130
2600699160,15cyclictest5744-21sshd20:27:150
2600699160,15cyclictest31958-21expr19:20:130
2600699160,15cyclictest31664-21cpu00:05:130
2600699160,15cyclictest20700-21expr23:45:140
2600699160,15cyclictest0-21swapper/023:55:140
2600699160,15cyclictest0-21swapper/023:35:150
2600699160,15cyclictest0-21swapper/021:35:140
2600699160,15cyclictest0-21swapper/020:50:000
2600699160,15cyclictest0-21swapper/020:10:130
2600699160,15cyclictest0-21swapper/019:40:180
2600699160,15cyclictest0-21swapper/000:35:160
2600699160,15cyclictest0-21swapper/000:35:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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