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2026-05-01 - 08:55
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackaslot8.osadl.org (updated Fri May 01, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26932292226,21sleep10-21swapper/119:07:541
27282283252,21sleep30-21swapper/319:08:203
27702275244,20sleep20-21swapper/219:08:522
25422270240,19sleep00-21swapper/019:06:170
88182970,0sleep00-21swapper/021:19:460
155322610,0sleep00-21swapper/000:19:500
83882590,0sleep10-21swapper/120:30:181
81042580,0sleep00-21swapper/022:56:450
86172560,0sleep10-21swapper/100:15:181
315132550,0sleep00-21swapper/022:31:430
255192550,0sleep30-21swapper/322:48:043
122792540,0sleep10-21swapper/122:40:131
50322530,0sleep20-21swapper/200:31:332
234392180,0sleep30-21swapper/321:47:373
126912180,0sleep00-21swapper/022:20:180
126912180,0sleep00-21swapper/022:20:180
88472150,0sleep20-21swapper/222:57:202
177342140,0sleep30-21swapper/322:43:223
151942140,0sleep30-21swapper/319:35:123
101472140,0sleep210154-21gltestperf20:35:122
29589997,1cyclictest12-21ksoftirqd/000:00:000
29709980,7cyclictest15876-21ntp_states00:00:183
29679987,1cyclictest28-21ksoftirqd/200:05:012
29679983,3cyclictest674-21lldpd23:12:192
29629983,3cyclictest26156-21munin-run20:00:011
29589986,1cyclictest12-21ksoftirqd/000:10:000
29589986,1cyclictest121ksoftirqd/020:40:010
29589982,1cyclictest141rcu_preempt19:30:120
5589270,0sleep30-21swapper/321:56:113
29709974,2cyclictest22590-21xargs23:05:223
29709973,3cyclictest29142-11brltty23:30:123
29709973,3cyclictest275-21systemd-journal23:29:473
29709972,2cyclictest275-21systemd-journal00:07:563
29709970,6cyclictest20610-21cron23:05:013
29679975,1cyclictest28-21ksoftirqd/220:20:012
29679973,3cyclictest504-21dbus-daemon00:20:012
29679973,3cyclictest275-21systemd-journal20:12:122
29629973,3cyclictest658-21snmpd21:30:121
29629973,3cyclictest275-21systemd-journal23:56:291
29629973,3cyclictest275-21systemd-journal20:26:211
29629973,3cyclictest275-21systemd-journal19:20:241
29629971,5cyclictest18790-21munin-run22:05:011
29589976,1cyclictest12-21ksoftirqd/023:55:000
29589976,1cyclictest121ksoftirqd/023:20:010
29589974,3cyclictest16885-21cron19:40:010
29589974,2cyclictest275-21systemd-journal19:56:460
29589973,3cyclictest658-21snmpd21:10:080
29589973,3cyclictest275-21systemd-journal22:42:390
29589973,1cyclictest141rcu_preempt19:15:010
29589972,3cyclictest275-21systemd-journal22:45:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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