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2025-11-25 - 05:59
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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 Tue Nov 25, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
194732299271,17sleep20-21swapper/219:06:532
196382278244,22sleep10-21swapper/119:08:411
196942275243,20sleep00-21swapper/019:09:240
196852260226,21sleep30-21swapper/319:09:193
51402650,0sleep30-21swapper/300:06:543
71252600,0sleep17128-21unixbench_multi21:00:191
182592570,0sleep30-21swapper/322:21:513
213832550,1sleep10-21swapper/121:40:041
277052190,0sleep10-21swapper/122:05:471
97142180,0sleep30-21swapper/322:39:093
219672180,0sleep30-21swapper/322:25:033
303082160,0sleep10-21swapper/121:45:211
104202150,0sleep20-21swapper/223:25:172
169222130,0sleep00-21swapper/021:36:140
117932130,0sleep30-21swapper/321:33:133
271482120,0sleep20-21swapper/222:05:202
258002120,0sleep30-21swapper/323:35:273
19855991210,1cyclictest34-21ksoftirqd/319:15:013
1984699105,3cyclictest19982-21systemd-journal22:35:181
1984299105,3cyclictest19982-21systemd-journal00:22:070
9692290,0sleep00-21swapper/023:01:520
4947290,1sleep10-21swapper/121:50:181
24824290,0sleep20-21swapper/223:58:112
198509994,3cyclictest19982-21systemd-journal21:33:082
5157280,0sleep20-21swapper/222:13:092
28256280,1sleep20-21swapper/222:51:572
198559984,2cyclictest19982-21systemd-journal22:16:073
198559984,2cyclictest19982-21systemd-journal19:52:433
198559983,3cyclictest19982-21systemd-journal21:07:273
198559983,3cyclictest19982-21systemd-journal20:17:393
198559983,2cyclictest508-21dbus-daemon00:40:003
198559982,4cyclictest34-21ksoftirqd/322:04:303
198509984,3cyclictest508-21dbus-daemon21:54:512
198509984,3cyclictest19116-21gdbus19:20:012
198509983,3cyclictest19982-21systemd-journal21:45:202
198469985,2cyclictest22-21ksoftirqd/121:25:121
198469984,3cyclictest9645-21ntpq19:55:171
198469984,3cyclictest508-21dbus-daemon20:33:541
198469984,3cyclictest21691-21latency_hist22:25:001
198469983,3cyclictest19982-21systemd-journal23:05:211
198469983,3cyclictest19982-21systemd-journal19:31:441
198429984,3cyclictest508-21dbus-daemon19:45:050
198429983,1cyclictest8434-21dump-pmu-power19:55:010
11834280,0sleep20-21swapper/221:10:212
6284270,1sleep30-21swapper/323:00:073
23565270,1sleep10-21swapper/122:49:001
198559974,2cyclictest11736-21in:imuxsock20:40:593
198559973,3cyclictest3694-21sshd21:27:303
198559973,3cyclictest19982-21systemd-journal22:49:303
198559973,3cyclictest0-21swapper/321:45:303
198559973,1cyclictest0-21swapper/323:50:363
198559973,1cyclictest0-21swapper/321:21:563
198559972,4cyclictest51850irq/136-enp4s0-22:10:133
198559972,4cyclictest0-21swapper/300:25:123
198509974,2cyclictest508-21dbus-daemon22:47:252
198509973,3cyclictest24582-21packagekitd20:35:052
198509973,3cyclictest21010-21ntpq19:10:182
198509973,3cyclictest19982-21systemd-journal23:22:022
198509973,3cyclictest19982-21systemd-journal20:52:152
198509973,3cyclictest19982-21systemd-journal19:56:462
198509973,3cyclictest19982-21systemd-journal19:47:422
198509973,3cyclictest0-21swapper/200:16:142
198509973,1cyclictest0-21swapper/222:33:232
198509973,1cyclictest0-21swapper/222:00:072
198509973,1cyclictest0-21swapper/200:11:102
198509972,3cyclictest7661-21lldpd22:20:112
198509972,3cyclictest19982-21systemd-journal19:27:412
198509970,3cyclictest10945-21/usr/sbin/munin21:55:202
198469974,2cyclictest28841-21idleruntime-cro20:40:001
198469974,2cyclictest22-21ksoftirqd/121:35:121
198469974,2cyclictest17444-21cron22:45:001
198469973,3cyclictest5149-21ntpq19:45:161
198469973,3cyclictest508-21dbus-daemon20:28:281
198469973,3cyclictest30654-21snmpd23:26:441
198469973,3cyclictest21266-21cat23:10:151
198469973,3cyclictest19982-21systemd-journal23:33:431
198469973,3cyclictest18728-21cut22:00:141
198469973,3cyclictest0-21swapper/123:59:061
198469973,3cyclictest0-21swapper/100:06:191
198469973,2cyclictest19982-21systemd-journal20:13:521
198469973,1cyclictest0-21swapper/123:37:371
198469973,1cyclictest0-21swapper/123:16:421
198469973,1cyclictest0-21swapper/121:31:311
198469972,4cyclictest30654-21snmpd23:04:341
198469972,3cyclictest7661-21lldpd00:10:121
198469972,3cyclictest19982-21systemd-journal22:12:511
198469970,3cyclictest7661-21lldpd20:04:391
198429974,2cyclictest11736-21in:imuxsock20:09:420
198429973,3cyclictest7661-21lldpd23:36:280
198429973,3cyclictest508-21dbus-daemon00:05:260
198429973,3cyclictest30654-21snmpd20:45:540
198429973,3cyclictest16328-21ntpq20:10:170
198429973,3cyclictest1-21systemd21:06:510
198429973,3cyclictest0-21swapper/023:58:510
198429973,3cyclictest0-21swapper/022:21:140
198429973,3cyclictest0-21swapper/022:14:200
198429973,3cyclictest0-21swapper/021:27:460
198429973,2cyclictest19982-21systemd-journal19:19:200
198429973,2cyclictest19982-21systemd-journal00:36:190
198429972,3cyclictest7661-21lldpd23:07:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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