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2026-06-16 - 08:04
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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 rackeslot2.osadl.org (updated Tue Jun 16, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10340382690,1sleep01034036-21ssh22:33:300
11377222300,2sleep11137723-21cron23:45:011
760346992823,1cyclictest8908031systemd-run20:55:020
760347992715,2cyclictest67250irq/126-eno100:00:011
760347992414,2cyclictest67250irq/126-eno122:50:221
760347992414,2cyclictest67250irq/126-eno121:35:021
760346992313,4cyclictest1043480-21irqrtprio22:40:210
760346992219,2cyclictest865918-21apt-key20:35:010
31537912214,3phc2sys0-21swapper/319:10:023
760348992119,1cyclictest0-21swapper/222:05:022
760348992118,1cyclictest0-21swapper/223:45:012
760348992118,1cyclictest0-21swapper/222:25:222
760348992118,1cyclictest0-21swapper/220:30:012
760347992118,2cyclictest1167209-21systemd00:05:011
760347992112,1cyclictest67250irq/126-eno122:49:361
760347992112,1cyclictest67250irq/126-eno122:49:361
76034799210,3cyclictest890336-21apt-get20:55:021
760346992118,2cyclictest0-21swapper/021:10:010
760346992110,6cyclictest1086930-21cpuspeed_turbos23:10:160
760346992110,4cyclictest1128886-21sshd23:35:360
760347992017,2cyclictest660-21dbus-daemon22:20:021
760347992017,2cyclictest1181842-21idleruntime-cro00:15:011
760347992014,2cyclictest492398rtkit-daemon22:33:261
760346992013,6cyclictest1247-21mta-sts-daemon00:19:270
760346992012,7cyclictest0-21swapper/022:05:020
760347991916,2cyclictest660-21dbus-daemon19:15:021
760347991915,3cyclictest1040038-21mailstats22:35:271
76034699197,7cyclictest1209253-21rt-features00:30:240
76034699197,4cyclictest1162125-21cut00:00:220
76034699194,9cyclictest817598-21aten2.4-expect19:55:150
76034699194,9cyclictest1145460-21aten2.4-expect23:50:130
76034699193,3cyclictest844359-21kthreadcore20:15:210
760346991916,2cyclictest0-21swapper/022:20:010
760346991916,2cyclictest0-21swapper/000:10:020
760346991911,7cyclictest926375-21kthreadcore21:20:200
760346991911,7cyclictest693-21systemd-logind21:15:080
760346991910,1cyclictest944688-21ssh21:31:200
760348991816,1cyclictest0-21swapper/221:55:012
760348991816,1cyclictest0-21swapper/200:10:022
760348991815,1cyclictest0-21swapper/223:40:012
760348991815,1cyclictest0-21swapper/221:10:032
760348991811,5cyclictest1160645-21taskset00:00:172
760347991815,2cyclictest1020-21runrttasks23:25:191
760347991815,2cyclictest0-21swapper/121:50:021
76034699187,7cyclictest1200110-21cut00:25:200
76034699186,2cyclictest914269-21latency21:10:230
76034699185,8cyclictest171ktimers/022:39:120
760346991815,2cyclictest804371-21mailstats19:40:230
760346991815,2cyclictest782462-21kthreadcore19:25:210
760346991815,2cyclictest1005091-21sh22:15:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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