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2026-05-05 - 04:09
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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 100 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
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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