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2026-01-10 - 08:45
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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 50 highest latencies:
System rackdslot0.osadl.org (updated Sat Jan 10, 2026 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
597099220,4cyclictest0-21swapper/219:33:492
596199223,16cyclictest30816-21wc22:45:130
597099213,17cyclictest13433-21sed22:15:012
597099210,3cyclictest0-21swapper/219:21:472
5970992016,3cyclictest0-21swapper/220:01:352
596599209,0cyclictest0-21swapper/122:07:081
596599200,17cyclictest0-21swapper/122:55:061
596199203,2cyclictest14425-21idleruntime20:20:150
5961992016,3cyclictest0-21swapper/019:32:180
5961992015,3cyclictest7505-21dpkg22:05:010
5970991917,1cyclictest0-21swapper/221:30:002
597099190,16cyclictest10105-21latency_hist20:15:012
596599190,17cyclictest16858-21anvil21:25:091
596199192,1cyclictest0-21swapper/022:11:310
596199192,16cyclictest24151-21processes00:25:180
596199192,16cyclictest0-21swapper/023:26:130
5961991913,5cyclictest0-21swapper/021:52:170
597099182,1cyclictest296332sleep220:48:092
597099182,15cyclictest105732sleep200:04:072
5970991816,1cyclictest17555-21expr00:15:122
5970991816,1cyclictest114882sleep221:13:082
5970991816,1cyclictest0-21swapper/219:52:312
5970991815,2cyclictest22784-21timerandwakeup23:25:212
5970991814,3cyclictest12330-21nvmesmart_nvme020:15:192
5970991812,5cyclictest0-21swapper/219:40:182
597099181,16cyclictest0-21swapper/223:06:292
596599182,15cyclictest0-21swapper/123:08:591
5965991816,1cyclictest0-21swapper/121:16:471
5965991816,1cyclictest0-21swapper/121:16:461
596599180,3cyclictest399-20systemd-journal20:29:551
596599180,15cyclictest0-21swapper/123:10:361
596199182,15cyclictest9-21ksoftirqd/000:35:190
596199182,15cyclictest4797-21idleruntime22:55:150
596199182,15cyclictest0-21swapper/022:30:130
5961991816,1cyclictest0-21swapper/020:30:140
5961991815,2cyclictest21853-21chrt19:35:340
5961991815,2cyclictest19274-21latency23:20:160
5961991815,2cyclictest17127-21mailstats23:15:220
596199180,3cyclictest1351-21lxd20:56:480
596199180,17cyclictest27918-21http19:50:010
5970991716,1cyclictest0-21swapper/223:12:012
5970991715,1cyclictest0-21swapper/223:00:212
5970991715,1cyclictest0-21swapper/223:00:212
5970991715,1cyclictest0-21swapper/220:35:202
5970991714,2cyclictest434-21sendmail_mailqu21:50:192
5970991714,2cyclictest32767-21tune2fs23:45:142
5970991714,2cyclictest1648-21fschecks_time22:50:152
5970991714,2cyclictest15216-21cut22:15:162
5970991713,2cyclictest25188-21proc_pri23:30:202
597099171,15cyclictest0-21swapper/200:10:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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