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2026-06-14 - 20:20
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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 Sun Jun 14, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26109992117,3cyclictest0-21swapper/209:02:412
26108992018,2cyclictest0-21swapper/109:41:171
26107992014,1cyclictest0-21swapper/011:03:150
2610799200,19cyclictest14505-21snapd09:05:360
2610999192,2cyclictest32328-21sendmail_mailtr08:15:202
2610999190,1cyclictest0-21swapper/212:30:112
2610999190,18cyclictest0-21swapper/212:18:232
2610899193,2cyclictest16765-21cupsd08:20:161
2610899193,15cyclictest0-21swapper/107:11:151
26108991917,1cyclictest8601-21awk08:30:201
26108991917,1cyclictest8601-21awk08:30:201
26108991915,3cyclictest0-21swapper/111:52:341
2610899190,16cyclictest3981-21H222:10:211
2610799190,2cyclictest3981-21H222:10:210
2610999182,15cyclictest0-21swapper/207:30:222
26109991814,3cyclictest32316-21cut09:15:012
26109991812,3cyclictest0-21swapper/209:45:202
2610999181,16cyclictest455-21plymouthd08:14:342
2610999180,3cyclictest26785-21sshd07:10:042
2610999180,3cyclictest15945-21lxd08:20:412
2610999180,17cyclictest3051-21tr10:15:172
2610899182,15cyclictest0-21swapper/108:50:181
26108991816,1cyclictest3987-21H222:10:211
26108991816,1cyclictest13488-21awk09:35:181
26108991816,1cyclictest0-21swapper/110:15:581
2610899181,1cyclictest0-21swapper/111:34:301
2610899181,16cyclictest22498-21nfsd411:45:181
2610899180,3cyclictest4265-21cut07:25:181
2610899180,2cyclictest4035-21H222:10:211
2610899180,17cyclictest0-21swapper/108:35:201
2610899180,15cyclictest3989-21H222:10:211
2610799180,17cyclictest3985-21H222:10:210
2610799180,17cyclictest1829-21systemd-journal12:16:590
26109991715,1cyclictest0-21swapper/211:25:442
26109991715,1cyclictest0-21swapper/207:18:452
26109991714,2cyclictest4035-21H222:10:212
26109991714,2cyclictest3987-21H222:10:212
26109991714,2cyclictest23652-21sendmail-msp09:00:012
26109991714,2cyclictest23652-21sendmail-msp09:00:012
26109991714,2cyclictest21279-21idleruntime09:50:162
26109991714,2cyclictest14002-21missed_timers11:30:152
26109991714,2cyclictest1153-21grep12:05:172
26109991714,1cyclictest0-21swapper/211:40:172
26109991713,3cyclictest5601-21lxd07:22:412
2610999170,2cyclictest4081-21latency12:10:162
2610999170,2cyclictest3976-21H222:10:212
2610999170,2cyclictest24617-21sort11:50:142
2610999170,2cyclictest2007-21systemd-journal08:08:362
2610999170,2cyclictest16666-21systemctl09:40:202
2610999170,1cyclictest0-21swapper/212:03:012
2610999170,16cyclictest9706-21proc_pri10:25:212
2610999170,16cyclictest5648-21cat07:30:012
2610999170,16cyclictest3987-21H222:10:212
2610999170,16cyclictest30682-21chrt10:05:312
2610999170,16cyclictest24236-21latency09:55:182
2610999170,16cyclictest22686-21expr08:00:152
2610999170,16cyclictest21012-21ntp_kernel_err07:55:192
2610999170,16cyclictest17172-21pzem_current11:35:192
2610999170,16cyclictest14499-21snapd10:45:572
2610999170,16cyclictest13898-21kernelversion08:40:152
2610999170,16cyclictest12693-21grep07:40:182
2610999170,16cyclictest10046-21processes07:35:182
2610899172,14cyclictest0-21swapper/110:50:031
26108991715,1cyclictest3987-21H222:10:211
26108991714,2cyclictest22996-21latency_hist09:55:001
26108991714,2cyclictest18953-21expr11:40:131
26108991714,2cyclictest18754-21grep10:40:221
26108991714,2cyclictest16984-21cpu07:50:131
26108991714,2cyclictest14066-21missed_timers08:40:171
26108991714,2cyclictest11334-21munin-run12:25:001
2610899171,15cyclictest0-21swapper/109:11:061
2610899170,2cyclictest8782-21nfsd411:20:171
2610899170,2cyclictest399-20systemd-journal10:40:001
2610899170,2cyclictest399-20systemd-journal09:19:551
2610899170,2cyclictest27985-21nfsd409:05:181
2610899170,2cyclictest21820-21chrt07:58:281
2610899170,2cyclictest2118-21expr11:10:121
2610899170,2cyclictest1523-21lxd12:08:421
2610899170,2cyclictest13467-21munin-plugin-st10:35:001
2610899170,16cyclictest9186-21cut10:25:171
2610899170,16cyclictest863-21avahi-daemon12:00:221
2610899170,16cyclictest7487-21python310:25:011
2610899170,16cyclictest7206-21irqstats09:25:171
2610899170,16cyclictest3987-21H222:10:211
2610899170,16cyclictest3979-21H222:10:211
2610899170,16cyclictest31646-21irqstats08:15:151
2610899170,16cyclictest28282-21cat11:00:001
2610899170,16cyclictest25639-21expr08:05:161
2610899170,16cyclictest0-21swapper/110:03:021
26107991715,1cyclictest0-21swapper/008:50:130
26107991714,2cyclictest8673-21nfsd411:20:160
26107991714,2cyclictest8467-21chrt09:28:290
26107991714,2cyclictest399-20systemd-journal11:40:010
26107991714,2cyclictest32592-21pzem_current11:05:200
26107991714,2cyclictest26694-21dpkg07:10:010
26107991714,2cyclictest14434-21pzem_energy11:30:180
26107991714,2cyclictest1157-21grep07:20:190
26107991714,2cyclictest0-21swapper/012:05:010
26107991713,3cyclictest3981-21H222:10:210
2610799171,1cyclictest0-21swapper/007:50:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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