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2026-05-06 - 06:37
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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 Wed May 06, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9182992514,1cyclictest0-21swapper/121:13:161
918299230,5cyclictest0-21swapper/121:45:401
918299230,5cyclictest0-21swapper/119:11:081
918299230,18cyclictest0-21swapper/119:53:211
9181992314,0cyclictest0-21swapper/021:13:170
918199230,18cyclictest0-21swapper/020:47:410
918399227,14cyclictest0-21swapper/220:50:182
918399227,14cyclictest0-21swapper/220:50:182
918199220,18cyclictest0-21swapper/021:42:120
9183992116,2cyclictest29644-21nvmesmart_nvme022:35:202
9182992120,0cyclictest0-21swapper/121:15:161
9181992118,2cyclictest27289-21fschecks_count21:35:160
918199210,3cyclictest0-21swapper/021:51:160
918399200,2cyclictest9548-21cstates23:55:132
918199203,16cyclictest0-21swapper/023:50:000
9181992018,1cyclictest0-21swapper/023:25:160
918399191,16cyclictest1655-21grep19:50:192
9182991918,0cyclictest0-21swapper/120:06:241
9182991917,1cyclictest6118-21uname20:55:201
9182991917,1cyclictest0-21swapper/123:20:241
918299190,18cyclictest843-21systemd-network19:38:561
918299190,18cyclictest399-20systemd-journal21:24:561
918299190,18cyclictest20154-21cpuspeed_turbos20:25:131
9181991917,1cyclictest0-21swapper/020:42:370
9181991917,1cyclictest0-21swapper/019:44:390
918199190,18cyclictest0-21swapper/023:03:570
918399182,1cyclictest234242chrt21:29:132
918399181,16cyclictest18299-21latency_hist19:25:012
918399181,16cyclictest15019-21sshd23:08:392
918399180,17cyclictest14496-21snapd22:00:202
9182991816,1cyclictest0-21swapper/122:45:201
918299180,3cyclictest399-20systemd-journal21:52:181
918299180,17cyclictest843-21systemd-network23:50:391
918299180,17cyclictest2040-21apt-config00:40:001
918299180,17cyclictest0-21swapper/122:15:221
918299180,16cyclictest29189-21perf21:40:001
918199183,1cyclictest9-21ksoftirqd/000:27:260
9181991816,1cyclictest11283-21timerandwakeup19:10:230
9181991816,1cyclictest0-21swapper/019:35:010
9181991816,1cyclictest0-21swapper/019:35:010
9181991816,1cyclictest0-21swapper/000:08:290
9181991814,3cyclictest21356-21nfsd422:20:180
9181991813,4cyclictest17126-21cat22:15:010
9181991813,3cyclictest0-21swapper/023:15:140
918199181,16cyclictest15060-21python319:20:020
918199180,17cyclictest8850-21latency_hist20:05:010
918199180,17cyclictest27812-21munin-run22:35:000
918199180,17cyclictest0-21swapper/022:15:220
918399172,1cyclictest282712chrt00:29:572
9183991716,1cyclictest28-21ksoftirqd/220:10:212
9183991715,1cyclictest5977-21taskset23:47:582
9183991715,1cyclictest200612chrt00:14:512
9183991714,2cyclictest774-21expr21:45:142
9183991714,2cyclictest399-20systemd-journal23:00:002
9183991714,2cyclictest3242-21date21:50:012
9183991714,2cyclictest30387-21expr19:45:142
9183991714,2cyclictest30162-21ps00:30:192
9183991714,2cyclictest29575-21cron19:45:002
9183991714,2cyclictest26949-21expr23:30:122
9183991714,2cyclictest25316-21sshd00:21:542
9183991714,2cyclictest18040-21perl20:20:162
9183991714,1cyclictest0-21swapper/221:15:152
918399171,1cyclictest82692chrt21:57:082
918399171,15cyclictest0-21swapper/222:05:142
918399171,15cyclictest0-21swapper/220:43:432
918399170,2cyclictest29537-21https23:35:012
918399170,2cyclictest28743-21sshd21:36:482
918399170,2cyclictest21144-21cut21:25:002
918399170,2cyclictest14495-21snapd23:25:402
918399170,2cyclictest1351-21lxd22:30:492
918399170,2cyclictest13009-21cpu21:10:122
918399170,2cyclictest1300-21lxd22:54:502
918399170,1cyclictest0-21swapper/220:38:302
918399170,17cyclictest0-21swapper/220:06:412
918399170,16cyclictest8613-21nfsd421:00:182
918399170,16cyclictest3414-21master19:58:412
918399170,16cyclictest26557-21python319:40:012
918399170,16cyclictest22302-21expr19:30:182
918399170,16cyclictest22302-21expr19:30:172
918399170,16cyclictest21007-21expr00:15:132
918399170,16cyclictest20636-21df20:25:142
918399170,16cyclictest20257-21threads19:25:212
918399170,16cyclictest13240-21nfsd400:00:182
918399170,15cyclictest0-21swapper/223:24:582
9182991716,0cyclictest0-21swapper/122:33:551
9182991714,2cyclictest7437-21nfsd420:00:181
9182991714,2cyclictest7404-21nfsd421:55:181
9182991714,2cyclictest4890-21nvmesmart_nvme019:55:191
9182991714,2cyclictest29878-21expr21:40:151
9182991714,2cyclictest23998-21awk22:25:191
9182991714,2cyclictest19052-21grep23:15:151
9182991713,3cyclictest4035-21H222:10:211
9182991713,3cyclictest0-21swapper/119:33:341
9182991713,3cyclictest0-21swapper/119:33:331
918299171,1cyclictest0-21swapper/120:45:221
918299171,15cyclictest3976-21H222:10:211
918299170,2cyclictest3058-21rs:main1
918299170,2cyclictest27245-21cut00:25:191
918299170,2cyclictest23546-21latency_hist21:30:001
918299170,2cyclictest15819-21nfsd422:10:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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