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2026-08-16 - 11:09
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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 Aug 16, 2026 00:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7569992927,1cyclictest0-21swapper/122:23:001
7569992725,2cyclictest0-21swapper/120:26:191
7569992625,0cyclictest0-21swapper/121:18:551
756999250,1cyclictest0-21swapper/100:00:181
7564992513,6cyclictest0-21swapper/022:05:010
7569992415,9cyclictest0-21swapper/121:29:141
757399230,18cyclictest0-21swapper/222:35:192
7573992221,0cyclictest0-21swapper/220:26:192
757399220,4cyclictest0-21swapper/223:44:042
757399220,21cyclictest0-21swapper/222:23:012
756999220,18cyclictest0-21swapper/122:31:221
756499220,21cyclictest870-21systemd-logind20:58:510
7573992121,0cyclictest0-21swapper/221:18:552
756499212,11cyclictest10117-21latency_hist21:10:010
7573992016,1cyclictest0-21swapper/219:35:192
757399193,15cyclictest0-21swapper/223:01:032
7573991917,1cyclictest0-21swapper/221:05:532
7573991917,1cyclictest0-21swapper/220:58:012
7573991916,2cyclictest17025-21chrt21:20:142
7573991914,4cyclictest9080-21nfsd419:10:192
7573991914,3cyclictest3991-21H222:10:212
757399190,4cyclictest426-21systemd-udevd21:36:522
757399190,4cyclictest0-21swapper/219:29:502
757399190,16cyclictest3976-21H222:10:212
756999192,3cyclictest0-21swapper/100:25:131
7569991917,1cyclictest21-21ksoftirqd/123:26:161
7569991917,1cyclictest21-21ksoftirqd/122:08:071
7569991916,2cyclictest3991-21H222:10:211
756999190,2cyclictest3991-21H222:10:211
756999190,18cyclictest0-21swapper/100:30:011
756999190,16cyclictest29421-21nfsd423:35:191
756999190,16cyclictest29421-21nfsd423:35:181
756999190,16cyclictest0-21swapper/120:30:151
756499193,15cyclictest18318-21cut00:15:000
756499192,3cyclictest0-21swapper/019:55:000
7564991914,4cyclictest426-21systemd-udevd23:20:520
7564991914,4cyclictest399-20systemd-journal22:17:010
756499191,17cyclictest3985-21H222:10:210
756499190,2cyclictest3979-21H222:10:210
756499190,17cyclictest426-21systemd-udevd21:32:510
756499190,16cyclictest4035-21H222:10:210
756499190,16cyclictest3983-21H222:10:210
7573991816,1cyclictest28-21ksoftirqd/223:10:442
7573991816,1cyclictest28-21ksoftirqd/223:10:442
7573991815,2cyclictest7559-21cyclictest19:45:002
7573991814,3cyclictest3976-21H222:10:212
7573991813,4cyclictest0-21swapper/221:50:392
757399181,2cyclictest3983-21H222:10:212
757399181,16cyclictest993-21dbus-daemon22:00:242
757399180,3cyclictest9408-21lxd20:50:522
757399180,3cyclictest426-21systemd-udevd22:26:522
757399180,3cyclictest3989-21H222:10:212
757399180,3cyclictest3989-21H222:10:212
757399180,3cyclictest28023-21grep21:40:112
757399180,2cyclictest3979-21H222:10:212
757399180,2cyclictest3976-21H222:10:212
757399180,17cyclictest3976-21H222:10:212
757399180,17cyclictest2679-21nfsd423:45:172
757399180,16cyclictest7613-21taskset22:55:252
757399180,16cyclictest3983-21H222:10:212
757399180,16cyclictest20113-21nfsd419:30:202
757399180,15cyclictest3983-21H222:10:212
7569991816,1cyclictest21-21ksoftirqd/121:10:011
7569991815,2cyclictest3987-21H222:10:211
7569991815,2cyclictest3206-21JS22:10:211
7569991814,3cyclictest3991-21H222:10:211
7569991814,3cyclictest3985-21H222:10:211
7569991814,3cyclictest3983-21H222:10:211
756999180,2cyclictest4035-21H222:10:211
756999180,2cyclictest4035-21H222:10:211
756999180,1cyclictest0-21swapper/123:01:281
756999180,17cyclictest6030-21munin-run20:05:001
756999180,17cyclictest3991-21H222:10:211
756999180,17cyclictest3976-21H222:10:211
756999180,17cyclictest29996-21cpuspeed_turbos19:50:141
756499182,15cyclictest10175-21idleruntime20:10:160
7564991816,1cyclictest3985-21H222:10:210
7564991816,1cyclictest3983-21H222:10:210
7564991816,1cyclictest0-21swapper/019:59:120
7564991814,3cyclictest3976-21H222:10:210
7564991814,3cyclictest0-21swapper/020:39:010
7564991814,2cyclictest3989-21H222:10:210
756499180,2cyclictest3987-21H222:10:210
756499180,2cyclictest3987-21H222:10:210
756499180,2cyclictest3987-21H222:10:210
756499180,16cyclictest16662-21df19:25:140
757399173,0cyclictest0-21swapper/220:23:212
7573991715,1cyclictest28-21ksoftirqd/222:15:162
7573991715,1cyclictest22628-21/usr/sbin/munin23:25:212
7573991715,1cyclictest0-21swapper/220:30:142
7573991714,2cyclictest6102-21grep21:55:212
7573991714,2cyclictest5713-21munin-run20:05:002
7573991714,2cyclictest4933-21/usr/sbin/munin21:00:142
7573991714,2cyclictest31249-21ntp_kernel_err19:50:192
7573991714,2cyclictest18733-21dpkg00:15:022
757399171,15cyclictest28-21ksoftirqd/219:45:142
757399170,2cyclictest6444-21apt-key20:05:012
757399170,2cyclictest29969-21nfsd420:45:192
757399170,2cyclictest27402-21awk20:40:192
757399170,2cyclictest19664-21expr21:25:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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