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2026-07-09 - 18:33
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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 Thu Jul 09, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18338992119,1cyclictest21-21ksoftirqd/109:25:271
1833799213,2cyclictest3987-21H222:10:210
18339992014,4cyclictest0-21swapper/211:50:102
1833999200,15cyclictest0-21swapper/212:15:102
18337992018,1cyclictest9-21ksoftirqd/012:10:100
18337992017,2cyclictest18586-21latency10:00:170
18337992014,3cyclictest0-21swapper/012:20:130
1833999192,16cyclictest28542-21apache208:25:012
1833999190,16cyclictest3985-21H222:10:212
18338991916,2cyclictest25339-21nfsd407:20:181
18338991916,2cyclictest21-21ksoftirqd/109:35:211
1833899191,2cyclictest28450-21cat08:25:001
1833899190,2cyclictest3987-21H222:10:211
1833899190,16cyclictest3979-21H222:10:211
1833799194,1cyclictest9-21ksoftirqd/010:54:240
18337991917,1cyclictest0-21swapper/008:05:020
1833799190,16cyclictest3979-21H222:10:210
1833999182,2cyclictest4035-21H222:10:212
18339991816,1cyclictest0-21swapper/212:04:442
18339991815,2cyclictest3988-21H222:10:212
18339991814,3cyclictest3987-21H222:10:212
18339991814,3cyclictest30423-21switchtime10:20:232
1833999181,16cyclictest23229-21/usr/sbin/munin10:10:132
1833999181,14cyclictest0-21swapper/211:33:322
1833999180,3cyclictest0-21swapper/207:20:182
1833999180,2cyclictest14625-21uname10:50:172
1833999180,17cyclictest3351-21lxd09:26:432
1833999180,16cyclictest0-21swapper/211:25:562
1833899182,1cyclictest0-21swapper/110:30:121
1833899182,15cyclictest7552-21fschecks_time11:35:131
18338991815,1cyclictest0-21swapper/109:46:061
1833899180,3cyclictest28489-21anvil12:16:391
1833899180,2cyclictest4035-21H222:10:211
1833899180,2cyclictest4035-21H222:10:211
1833899180,2cyclictest3989-21H222:10:211
1833899180,2cyclictest16249-21cat10:55:011
1833899180,17cyclictest3983-21H222:10:211
1833899180,17cyclictest3983-21H222:10:211
1833899180,16cyclictest3985-21H222:10:211
18337991816,1cyclictest0-21swapper/012:05:070
18337991816,1cyclictest0-21swapper/010:21:420
18337991815,2cyclictest4099-21H222:10:210
18337991815,2cyclictest28047-21perf08:25:000
18337991814,3cyclictest3987-21H222:10:210
18337991813,3cyclictest5104-21munin-plugin-st12:30:010
1833799180,2cyclictest4035-21H222:10:210
1833799180,2cyclictest3976-21H222:10:210
1833799180,17cyclictest1463-21munin-run10:30:000
1833799180,16cyclictest3983-21H222:10:210
18339991716,1cyclictest28-21ksoftirqd/207:10:222
18339991715,1cyclictest28-21ksoftirqd/211:47:432
18339991715,1cyclictest28-21ksoftirqd/209:20:312
18339991714,2cyclictest6142-21nfsd410:35:192
18339991714,2cyclictest5022-21apt-config08:40:022
18339991714,2cyclictest4035-21H222:10:212
18339991714,2cyclictest3985-21H222:10:212
18339991714,2cyclictest3985-21H222:10:212
18339991714,2cyclictest3976-21H222:10:212
18339991714,2cyclictest29989-21grep08:25:192
18339991714,2cyclictest22500-21cat09:10:142
18339991714,2cyclictest1963-21grep09:30:182
18339991714,2cyclictest18317-21fschecks_time10:00:162
18339991714,2cyclictest17238-21cut10:00:002
18339991714,2cyclictest12233-21nfsd408:50:182
18339991714,2cyclictest10698-21cut11:40:172
18339991714,2cyclictest0-21swapper/209:36:402
18339991713,2cyclictest6969-21nvmesmart_nvme008:40:192
1833999171,1cyclictest0-21swapper/207:55:142
1833999171,15cyclictest3987-21H222:10:212
1833999170,2cyclictest8220-21awk11:35:162
1833999170,2cyclictest4840-21cron12:30:002
1833999170,2cyclictest3991-21H222:10:212
1833999170,2cyclictest3991-21H222:10:212
1833999170,2cyclictest3989-21H222:10:212
1833999170,2cyclictest3989-21H222:10:212
1833999170,2cyclictest3985-21H222:10:212
1833999170,2cyclictest3985-21H222:10:212
1833999170,2cyclictest31985-21sed11:20:202
1833999170,2cyclictest29578-21apache_processe07:30:122
1833999170,2cyclictest17337-21anvil08:05:092
1833999170,2cyclictest12372-21nvmesmart_nvme010:45:192
1833999170,1cyclictest0-21swapper/211:14:332
1833999170,16cyclictest8401-21grep08:45:132
1833999170,16cyclictest4099-21H222:10:212
1833999170,16cyclictest3989-21H222:10:212
1833999170,16cyclictest2436-21anvil07:43:042
1833999170,16cyclictest23131-21latency_hist10:10:012
1833999170,16cyclictest21376-21apt-get07:15:122
1833999170,16cyclictest1377-21lxd12:32:432
1833999170,16cyclictest0-21swapper/208:55:172
1833999170,16cyclictest0-21swapper/208:55:162
18338991715,1cyclictest325292chrt11:24:341
18338991715,1cyclictest0-21swapper/107:14:121
18338991714,2cyclictest6517-21grep12:30:171
18338991714,2cyclictest3985-21H222:10:211
18338991714,2cyclictest25121-21expr11:10:151
18338991714,2cyclictest23838-21threads09:10:211
18338991714,2cyclictest20540-21expr08:10:121
18338991714,2cyclictest14325-21sed08:00:001
18338991714,2cyclictest13297-21cron08:55:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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