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2026-09-12 - 00:01
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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 Fri Sep 11, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1547399280,23cyclictest0-21swapper/010:13:280
1547399250,1cyclictest0-21swapper/008:35:130
1547399232,20cyclictest320672sleep012:23:550
1547399230,2cyclictest24805-21cstates12:10:180
1547399230,2cyclictest24805-21cstates12:10:180
1547399230,2cyclictest17020-21gpgv08:10:000
1547399220,2cyclictest30899-21expr09:30:150
1547399220,2cyclictest25109-21apport08:25:010
1547399220,21cyclictest17767-21munin-plugin-st10:05:010
1547399220,1cyclictest3737-21smartctl08:40:160
1547399220,16cyclictest7238-21cat09:45:140
1547399220,16cyclictest12625-21wc11:50:000
1547399220,15cyclictest9752-21netstat08:50:170
15479992118,2cyclictest1577-21cpuspeed_turbos11:30:202
15473992114,6cyclictest29468-21sendmail_mailtr09:25:210
1547399211,2cyclictest13112-21fschecks_time09:55:150
1547399210,2cyclictest4874-21/usr/sbin/munin12:30:260
1547399210,2cyclictest32327-21awk11:25:160
1547399210,20cyclictest0-21swapper/010:20:580
1547399210,1cyclictest0-21swapper/012:00:140
1547399210,1cyclictest0-21swapper/007:45:160
1547399210,1cyclictest0-21swapper/007:20:140
1547399210,1cyclictest0-21swapper/007:20:140
1547399210,16cyclictest21643-21awk08:15:200
1547399210,16cyclictest19367-21chrt08:11:350
1547399210,16cyclictest13047-21sed08:00:210
1547399210,15cyclictest276822chrt11:17:320
1547399210,15cyclictest18636-21hddtemp_smartct10:05:150
1547399210,15cyclictest0-21swapper/011:35:120
1547399210,15cyclictest0-21swapper/009:22:260
1547399210,15cyclictest0-21swapper/008:55:180
1547399210,15cyclictest0-21swapper/007:56:330
1547399210,14cyclictest0-21swapper/008:30:160
15479992014,5cyclictest0-21swapper/207:45:172
1547999200,17cyclictest0-21swapper/212:05:162
15473992014,5cyclictest6795-21/usr/sbin/munin07:50:160
15473992014,5cyclictest24653-21timerandwakeup11:10:200
15473992014,5cyclictest133432sleep010:51:200
15473992014,5cyclictest0-21swapper/011:20:140
15473992014,5cyclictest0-21swapper/009:18:170
15473992013,6cyclictest0-21swapper/010:40:020
15473992012,7cyclictest32593-21apt12:25:110
1547399200,2cyclictest3987-21H222:10:210
1547399200,1cyclictest63532chrt09:42:250
1547399200,1cyclictest15954-21tr07:10:140
1547399200,1cyclictest0-21swapper/011:05:130
1547399200,19cyclictest2212-21/usr/sbin/munin11:30:220
1547399200,19cyclictest0-21swapper/011:55:130
1547399200,19cyclictest0-21swapper/011:50:140
1547399200,19cyclictest0-21swapper/010:56:140
1547399200,19cyclictest0-21swapper/009:05:110
1547399200,19cyclictest0-21swapper/009:05:110
1547399200,19cyclictest0-21swapper/007:40:180
1547399200,16cyclictest0-21swapper/009:10:170
1547399200,15cyclictest31147-21chrt10:27:500
1547399200,15cyclictest0-21swapper/010:30:210
1547399200,15cyclictest0-21swapper/007:35:190
1547399200,14cyclictest0-21swapper/007:30:130
1547999192,2cyclictest7288-21processes08:45:202
15474991917,1cyclictest0-21swapper/111:05:141
15473991914,4cyclictest16968-21expr11:00:140
15473991914,4cyclictest0-21swapper/010:50:010
15473991914,4cyclictest0-21swapper/009:50:210
15473991914,4cyclictest0-21swapper/008:25:110
15473991913,5cyclictest0-21swapper/010:35:160
15473991912,6cyclictest470-21cron09:35:000
15473991912,6cyclictest23960-21munin-run12:09:590
1547399190,1cyclictest0-21swapper/012:15:150
1547399190,1cyclictest0-21swapper/010:15:120
1547399190,18cyclictest0-21swapper/012:35:190
1547399190,18cyclictest0-21swapper/011:40:210
1547999182,15cyclictest3989-21H222:10:212
15479991815,2cyclictest5722-21nfsd411:35:172
15479991815,2cyclictest11307-21plymouth09:50:252
15479991814,3cyclictest4099-21H222:10:212
1547999180,17cyclictest15945-21lxd10:40:432
1547499182,15cyclictest0-21swapper/111:36:271
15474991815,2cyclictest5801-21/usr/sbin/munin08:45:111
15474991814,3cyclictest7402-21systemctl07:50:201
1547499181,1cyclictest0-21swapper/112:34:591
1547499181,16cyclictest0-21swapper/107:49:521
1547499180,2cyclictest3979-21H222:10:211
1547499180,17cyclictest0-21swapper/110:10:331
15473991813,5cyclictest0-21swapper/008:48:460
15479991715,1cyclictest0-21swapper/212:13:152
15479991715,1cyclictest0-21swapper/212:13:152
15479991715,1cyclictest0-21swapper/211:40:132
15479991715,1cyclictest0-21swapper/209:45:242
15479991714,2cyclictest399-20systemd-journal07:28:312
15479991714,2cyclictest28300-21/usr/sbin/munin11:20:162
15479991714,2cyclictest25660-21cpuspeed_turbos11:15:112
15479991714,2cyclictest0-21swapper/209:30:242
1547999171,15cyclictest19291-21taskset08:10:332
1547999171,15cyclictest12053-21if_eno108:55:152
1547999171,15cyclictest0-21swapper/209:35:262
1547999170,2cyclictest853-21pzem_current10:30:202
1547999170,2cyclictest31758-21chrt07:39:002
1547999170,2cyclictest29134-21awk09:25:182
1547999170,2cyclictest2672-21date07:45:002
1547999170,2cyclictest16766-21apt-config08:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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