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2026-04-15 - 22:27
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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 100 highest latencies:
System rackaslot8.osadl.org (updated Wed Apr 15, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
57012315285,20sleep20-21swapper/207:09:402
54812299269,20sleep10-21swapper/107:07:061
57262278248,20sleep00-21swapper/007:09:580
55612273239,22sleep30-21swapper/307:07:523
18542620,1sleep10-21swapper/111:51:231
148592580,0sleep10-21swapper/112:19:581
101552570,0sleep20-21swapper/211:36:392
58102550,0sleep00-21swapper/010:35:080
162762550,0sleep10-21swapper/110:01:001
160102530,0sleep00-21swapper/012:00:150
58382200,0sleep30-21swapper/312:14:163
290322200,0sleep10-21swapper/111:28:491
128092200,0chrt22-21ksoftirqd/107:21:281
299492190,0sleep10-21swapper/111:09:431
291392180,0sleep229103-21munin-run08:00:002
289032180,0sleep30-21swapper/309:10:123
225992180,0sleep00-21swapper/009:45:180
264762140,0sleep10-21swapper/111:46:391
71042120,0sleep10-21swapper/110:15:181
584099115,2cyclictest12-21ksoftirqd/008:30:000
5840991110,1cyclictest12-21ksoftirqd/010:00:010
251892110,0sleep30-21swapper/310:46:193
585299108,2cyclictest34-21ksoftirqd/311:20:013
585299108,2cyclictest34-21ksoftirqd/309:55:013
58529998,1cyclictest34-21ksoftirqd/307:40:013
58529997,2cyclictest34-21ksoftirqd/308:10:003
58529997,2cyclictest34-21ksoftirqd/307:15:013
58529992,1cyclictest141rcu_preempt12:15:113
58449996,2cyclictest22-21ksoftirqd/108:00:001
58449990,2cyclictest14555-21/usr/sbin/munin11:00:161
58409998,1cyclictest12-21ksoftirqd/007:15:010
58409997,1cyclictest12-21ksoftirqd/009:00:000
58409995,4cyclictest12-21ksoftirqd/010:30:010
58409994,3cyclictest275-21systemd-journal09:16:110
9703280,0sleep10-21swapper/107:15:151
58529987,1cyclictest34-21ksoftirqd/312:10:013
58529987,1cyclictest34-21ksoftirqd/311:50:003
58529987,1cyclictest34-21ksoftirqd/310:40:013
58529987,1cyclictest34-21ksoftirqd/307:15:023
58529986,1cyclictest34-21ksoftirqd/311:00:013
58529985,2cyclictest34-21ksoftirqd/310:20:023
58529984,3cyclictest275-21systemd-journal11:08:063
58529984,2cyclictest275-21systemd-journal09:02:503
58529983,1cyclictest141rcu_preempt10:50:113
58529983,1cyclictest141rcu_preempt09:30:123
58489983,3cyclictest19316-21awk08:50:002
58489982,3cyclictest12760-21munin-run09:39:592
58449984,3cyclictest275-21systemd-journal09:27:351
58409987,1cyclictest12-21ksoftirqd/012:40:000
58409987,1cyclictest12-21ksoftirqd/012:20:000
58409987,1cyclictest12-21ksoftirqd/012:00:000
58409987,1cyclictest12-21ksoftirqd/011:00:010
58409987,1cyclictest12-21ksoftirqd/009:55:010
58409987,1cyclictest12-21ksoftirqd/009:40:000
58409986,1cyclictest12-21ksoftirqd/008:00:000
58409984,0cyclictest12-21ksoftirqd/011:25:120
58409983,3cyclictest141rcu_preempt09:29:520
58409983,1cyclictest131rcuc/008:10:110
32307280,0sleep10-21swapper/108:05:171
58529976,1cyclictest34-21ksoftirqd/312:30:003
58529976,1cyclictest34-21ksoftirqd/311:05:013
58529976,1cyclictest34-21ksoftirqd/310:15:013
58529976,1cyclictest34-21ksoftirqd/309:50:003
58529976,1cyclictest34-21ksoftirqd/308:55:003
58529974,0cyclictest141rcu_preempt07:25:123
58529973,3cyclictest504-21dbus-daemon10:25:083
58529973,3cyclictest2200-21perl08:10:133
58529973,3cyclictest21548-21tail09:25:133
58529973,3cyclictest21111-21sshd12:23:303
58529973,2cyclictest275-21systemd-journal07:22:343
58529973,0cyclictest34-21ksoftirqd/311:20:163
58529972,1cyclictest141rcu_preempt11:55:113
58529971,5cyclictest7386-21grep11:35:143
58529971,1cyclictest141rcu_preempt08:25:133
58529971,1cyclictest141rcu_preempt07:45:133
58529970,5cyclictest2362-21ssh11:12:083
58489974,2cyclictest5956-21cron10:55:012
58489974,2cyclictest275-21systemd-journal09:54:172
58489973,3cyclictest658-21snmpd09:15:372
58489973,3cyclictest275-21systemd-journal08:52:112
58489973,3cyclictest275-21systemd-journal07:25:012
58449976,1cyclictest28235-21diskmemload09:43:311
58449973,3cyclictest658-21snmpd10:08:521
58449973,3cyclictest504-21dbus-daemon10:53:541
58449973,3cyclictest504-21dbus-daemon10:00:011
58449973,3cyclictest15739-21ntpq11:20:161
58449970,6cyclictest0-21swapper/110:32:001
58409976,1cyclictest12-21ksoftirqd/012:15:000
58409976,1cyclictest12-21ksoftirqd/011:35:000
58409976,1cyclictest12-21ksoftirqd/010:50:010
58409975,2cyclictest12-21ksoftirqd/008:50:000
58409975,1cyclictest26339-21sh11:06:520
58409975,1cyclictest12-21ksoftirqd/007:15:010
58409974,2cyclictest504-21dbus-daemon12:35:000
58409973,3cyclictest7756-21awk11:15:160
58409973,3cyclictest275-21systemd-journal11:13:150
58409973,3cyclictest275-21systemd-journal09:24:150
58409973,3cyclictest17864-11brltty08:21:130
58409973,1cyclictest12-21ksoftirqd/010:15:120
58409973,1cyclictest0-21swapper/009:10:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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