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2026-04-27 - 05:33
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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 50 highest latencies:
System rackdslot0.osadl.org (updated Mon Apr 27, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1043499210,20cyclictest0-21swapper/200:38:172
1043299212,16cyclictest0-21swapper/123:21:441
1043299210,18cyclictest0-21swapper/123:40:421
10431992114,4cyclictest0-21swapper/022:35:540
1043299202,17cyclictest31850irq/133-nvme0q219:35:011
1043299200,6cyclictest0-21swapper/119:45:011
1043299200,4cyclictest0-21swapper/122:40:121
1043499192,2cyclictest4099-21H222:10:212
10434991916,2cyclictest20090-21latency_hist23:15:012
10434991916,2cyclictest10863-21missed_timers20:05:172
1043499190,16cyclictest3991-21H222:10:212
1043299193,1cyclictest0-21swapper/121:59:181
1043299191,17cyclictest0-21swapper/122:15:011
10431991916,2cyclictest1859-21chrt21:42:240
1043199190,17cyclictest31668-21https21:40:010
1043499182,15cyclictest28-21ksoftirqd/221:55:192
10434991815,2cyclictest3987-21H222:10:212
1043499181,2cyclictest25334-21smtpd23:22:202
1043499181,1cyclictest0-21swapper/219:37:162
1043499181,16cyclictest3709-21qmgr20:34:322
1043499180,3cyclictest0-21swapper/221:25:212
1043499180,17cyclictest4099-21H222:10:212
1043499180,16cyclictest3991-21H222:10:212
1043499180,16cyclictest3979-21H222:10:212
1043299182,15cyclictest0-21swapper/122:25:131
10432991816,1cyclictest21-21ksoftirqd/119:39:091
10432991815,2cyclictest863-21avahi-daemon22:05:221
10432991815,1cyclictest0-21swapper/120:34:051
10432991814,3cyclictest2838-21cron20:25:001
10432991814,3cyclictest11215-21cut20:05:191
10432991814,3cyclictest0-21swapper/100:16:301
1043299181,2cyclictest5156-21nfsd420:50:191
10432991810,4cyclictest0-21swapper/122:36:191
1043299180,17cyclictest4035-21H222:10:211
1043299180,17cyclictest0-21swapper/120:10:151
1043299180,16cyclictest1829-21systemd-journal21:45:021
1043199182,15cyclictest0-21swapper/021:30:140
10431991815,2cyclictest12471-21proc_pri22:00:200
1043199181,2cyclictest21828-21awk23:15:180
1043199180,2cyclictest3989-21H222:10:210
1043199180,2cyclictest3983-21H222:10:210
1043199180,17cyclictest843-21systemd-network19:38:340
1043199180,15cyclictest27428-21cat00:25:000
10434991715,1cyclictest0-21swapper/223:55:142
10434991715,1cyclictest0-21swapper/223:35:122
10434991714,2cyclictest4225-21processes23:40:202
10434991714,2cyclictest3991-21H222:10:212
10434991714,2cyclictest27424-21pluginstate21:30:202
10434991714,2cyclictest2486-21sendmail_mailtr22:40:212
10434991714,2cyclictest2069-21systemd-udevd00:34:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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