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2026-05-07 - 07:40
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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 Thu May 07, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6039992321,1cyclictest0-21swapper/121:50:201
603899237,15cyclictest0-21swapper/019:47:030
603899230,23cyclictest0-21swapper/021:55:150
604099220,4cyclictest0-21swapper/200:09:572
6040992117,3cyclictest0-21swapper/222:20:322
604099204,15cyclictest0-21swapper/220:20:432
604099201,17cyclictest3058-21rs:main2
604099193,1cyclictest10411-21sessionclean22:08:592
604099192,1cyclictest3987-21H222:10:212
604099192,15cyclictest3987-21H222:10:212
6040991916,2cyclictest21732-21cut21:30:142
604099190,4cyclictest24115-21grep23:30:152
604099190,2cyclictest3987-21H222:10:212
604099190,1cyclictest0-21swapper/220:15:172
604099190,18cyclictest0-21swapper/220:25:132
604099190,16cyclictest3985-21H222:10:212
603999193,15cyclictest21-21ksoftirqd/122:39:131
6039991916,2cyclictest13410-21nfsd421:15:171
6039991915,3cyclictest0-21swapper/121:10:141
603999191,17cyclictest24333-21cat23:30:161
603999190,16cyclictest3985-21H222:10:211
603899192,2cyclictest980-21cat20:55:140
603899192,1cyclictest0-21swapper/023:05:200
6038991916,2cyclictest14672-21sed21:20:010
603899191,3cyclictest24278-21perf22:34:590
603899191,16cyclictest19063-21nvmesmart_nvme023:20:180
6038991911,4cyclictest0-21swapper/000:39:500
603899190,4cyclictest25696-21munin-run19:45:000
603899190,18cyclictest399-20systemd-journal22:44:110
603899190,18cyclictest0-21swapper/023:41:280
6040991815,2cyclictest18861-21nfsd423:20:162
604099181,16cyclictest29898-21cat20:50:012
604099180,3cyclictest12759-21grep23:10:132
604099180,17cyclictest29613-21python320:50:012
604099180,17cyclictest16352-21ps23:15:212
604099180,17cyclictest0-21swapper/200:20:142
603999182,2cyclictest3985-21H222:10:211
6039991816,1cyclictest24243-21grep21:35:141
6039991815,1cyclictest0-21swapper/120:20:191
6039991814,3cyclictest4099-21H222:10:211
6039991814,2cyclictest21097-21grep19:35:141
603999181,2cyclictest7188-21fschecks_time23:00:141
603999181,2cyclictest0-21swapper/120:00:001
603999180,3cyclictest0-21swapper/120:20:011
603999180,2cyclictest4099-21H222:10:211
603999180,2cyclictest3989-21H222:10:211
603999180,2cyclictest3989-21H222:10:211
603999180,17cyclictest3987-21H222:10:211
603999180,17cyclictest29014-21tr19:50:101
603899182,1cyclictest16416-21ubuntu-distro-i00:15:010
6038991815,2cyclictest15350-21mailstats22:15:200
603899181,16cyclictest27661-21nfsd421:40:160
603899180,3cyclictest17356-21python321:25:010
603899180,2cyclictest3991-21H222:10:210
603899180,2cyclictest3991-21H222:10:210
603899180,2cyclictest1890-21cron21:55:010
603899180,17cyclictest6105-21run-parts23:00:000
6040991715,1cyclictest28-21ksoftirqd/222:41:462
6040991715,1cyclictest28-21ksoftirqd/221:54:012
6040991715,1cyclictest0-21swapper/219:10:092
6040991715,1cyclictest0-21swapper/200:35:202
6040991714,2cyclictest6613-21nfsd422:00:182
6040991714,2cyclictest2755-21expr23:50:142
6040991714,2cyclictest16174-21nfsd421:20:172
6040991714,2cyclictest1212-21expr22:50:132
6040991714,2cyclictest11527-21taskset21:11:452
6040991714,2cyclictest0-21swapper/222:46:212
6040991714,2cyclictest0-21swapper/222:38:402
604099171,15cyclictest46492sleep221:56:022
604099171,15cyclictest0-21swapper/219:50:012
604099170,2cyclictest8995-21chrt00:00:162
604099170,2cyclictest6522-21cut23:55:172
604099170,2cyclictest31967-21cstates19:55:142
604099170,2cyclictest26705-21cut00:30:192
604099170,2cyclictest25793-21cat19:45:022
604099170,2cyclictest21390-21latency19:35:172
604099170,2cyclictest19797-21kernelversion20:30:172
604099170,2cyclictest17299-21perf19:30:012
604099170,2cyclictest10579-21missed_timers19:15:162
604099170,1cyclictest0-21swapper/223:00:222
604099170,16cyclictest6266-21nfsd420:05:182
604099170,16cyclictest31328-21chrt21:48:092
604099170,16cyclictest31328-21chrt21:48:082
604099170,16cyclictest25786-21awk20:40:162
604099170,16cyclictest23061-21proc_pri20:35:202
604099170,16cyclictest18754-21fschecks_time21:25:152
604099170,16cyclictest1284-21kerneloops23:42:562
604099170,16cyclictest11800-21cat23:10:012
604099170,16cyclictest0-21swapper/222:25:182
604099170,16cyclictest0-21swapper/219:21:272
604099170,16cyclictest0-21swapper/200:13:572
6039991714,2cyclictest683-21nfsd423:45:171
6039991714,2cyclictest3426-21ls21:55:171
6039991714,2cyclictest32127-21cat20:50:221
6039991714,2cyclictest22647-21cpuspeed_turbos00:25:131
6039991714,2cyclictest18871-21nfsd423:20:171
6039991714,1cyclictest0-21swapper/119:40:301
6039991714,1cyclictest0-21swapper/119:30:191
6039991713,3cyclictest455-21plymouthd20:30:141
6039991713,3cyclictest455-21plymouthd19:30:011
6039991713,3cyclictest3989-21H222:10:211
6039991713,2cyclictest2007-21systemd-journal22:45:191
6039991711,5cyclictest843-21systemd-network22:11:541
603999171,15cyclictest0-21swapper/120:25:131
603999170,2cyclictest8102-21ps21:05:201
603999170,2cyclictest4035-21H222:10:211
603999170,2cyclictest3982-21H222:10:211
603999170,2cyclictest27303-21nfsd419:45:171
603999170,2cyclictest2194-21cut20:00:131
603999170,2cyclictest1888-21needreboot22:50:171
603999170,2cyclictest16624-21sed21:20:201
603999170,2cyclictest16398-21date22:20:011
603999170,2cyclictest11990-21munin-run23:10:011
603999170,2cyclictest10381-21cron00:05:001
603999170,1cyclictest3979-21H222:10:211
603999170,1cyclictest3976-21H222:10:211
603999170,1cyclictest0-21swapper/123:10:121
603999170,1cyclictest0-21swapper/121:45:211
603999170,1cyclictest0-21swapper/121:45:211
603999170,16cyclictest4486-21grep21:00:151
603999170,16cyclictest3987-21H222:10:211
603999170,16cyclictest29242-21sed22:40:191
603999170,16cyclictest21931-21/usr/sbin/munin22:30:111
603999170,16cyclictest20608-21ntp_kernel_pll_22:25:181
603999170,16cyclictest18118-21grep21:25:131
603999170,16cyclictest10462-21cut20:15:011
603999170,16cyclictest0-21swapper/122:02:061
603899172,15cyclictest4099-21H222:10:210
6038991716,1cyclictest9-21ksoftirqd/000:07:560
6038991715,1cyclictest0-21swapper/022:45:090
6038991714,2cyclictest4079-21cut23:50:190
6038991714,2cyclictest3976-21H222:10:210
6038991714,2cyclictest20085-21nfsd420:30:170
6038991714,2cyclictest16622-21threads23:15:220
6038991714,2cyclictest14499-21snapd23:27:580
6038991714,2cyclictest13774-21find19:20:190
6038991714,2cyclictest1377-21lxd22:22:500
6038991713,3cyclictest3989-21H222:10:210
603899171,15cyclictest3983-21H222:10:210
603899171,15cyclictest14636-21nfsd420:20:180
603899170,3cyclictest1114-21lldpd21:02:520
603899170,2cyclictest8909-21/usr/sbin/munin00:00:140
603899170,2cyclictest7908-21grep21:05:180
603899170,2cyclictest6119-21which22:00:170
603899170,2cyclictest332-21nfsd419:55:170
603899170,2cyclictest29978-21cat21:45:150
603899170,2cyclictest29978-21cat21:45:140
603899170,2cyclictest24775-21expr20:40:130
603899170,2cyclictest18636-21latency19:30:170
603899170,1cyclictest0-21swapper/019:16:220
603899170,16cyclictest4631-21munin-run20:05:000
603899170,16cyclictest3979-21H222:10:210
603899170,16cyclictest27740-21cstates20:45:130
603899170,16cyclictest27446-21nfsd423:35:170
603899170,16cyclictest26805-21chrt22:37:490
603899170,16cyclictest24133-21/usr/sbin/munin21:35:140
603899170,16cyclictest14506-21snapd22:07:580
603899170,16cyclictest1377-21lxd20:12:500
603899170,16cyclictest12625-21expr23:10:110
603899170,16cyclictest11211-21expr20:15:140
603899170,16cyclictest0-21swapper/019:39:390
603899170,15cyclictest4099-21H222:10:210
6040991614,1cyclictest0-21swapper/222:30:132
6040991614,1cyclictest0-21swapper/221:35:122
6040991614,1cyclictest0-21swapper/221:00:092
604099160,2cyclictest26807-21expr21:40:132
604099160,2cyclictest22772-21cat00:25:122
604099160,1cyclictest0-21swapper/223:35:122
604099160,15cyclictest12457-21cat21:15:132
604099160,15cyclictest11145-21cpuspeed_turbos22:10:132
604099160,15cyclictest0-21swapper/222:55:122
604099160,15cyclictest0-21swapper/221:05:182
604099160,15cyclictest0-21swapper/220:10:142
604099160,15cyclictest0-21swapper/220:00:132
604099160,15cyclictest0-21swapper/219:50:112
604099160,15cyclictest0-21swapper/219:30:182
6039991614,1cyclictest0-21swapper/119:15:021
6039991614,1cyclictest0-21swapper/119:10:121
603999160,2cyclictest4099-21H222:10:211
603999160,1cyclictest0-21swapper/120:40:131
603999160,15cyclictest25805-21tune2fs00:30:141
603999160,15cyclictest1773-21sort20:55:171
603999160,15cyclictest0-21swapper/123:35:131
603999160,15cyclictest0-21swapper/122:55:141
603999160,15cyclictest0-21swapper/121:40:161
603999160,15cyclictest0-21swapper/120:05:191
6038991614,1cyclictest16677-21expr20:25:140
6038991614,1cyclictest0-21swapper/020:35:140
6038991613,2cyclictest7024-21fschecks_time19:10:140
603899160,2cyclictest6518-21ps20:05:210
603899160,1cyclictest6714-21cpuspeed_turbos23:00:130
603899160,1cyclictest3979-21H222:10:210
603899160,1cyclictest0-21swapper/021:30:120
603899160,15cyclictest29729-21gpgv20:50:000
603899160,15cyclictest15945-21lxd22:10:490
603899160,15cyclictest0-21swapper/022:50:150
603899160,15cyclictest0-21swapper/021:25:180
603899160,15cyclictest0-21swapper/019:29:550
6038991515,0cyclictest0-21swapper/019:50:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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