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2026-03-17 - 06:05
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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 Mar 17, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
51872290264,17sleep10-21swapper/119:06:381
52112279246,19sleep20-21swapper/219:06:512
51722265239,17sleep00-21swapper/019:06:290
53862258228,20sleep30-21swapper/319:08:573
231402620,0sleep10-21swapper/122:05:011
77492590,0sleep10-21swapper/123:12:521
246612580,0sleep20-21swapper/223:42:352
134812580,0sleep10-21swapper/123:35:211
94592550,0sleep00-21swapper/021:17:180
105172550,0sleep00-21swapper/000:13:000
230182540,0sleep30-21swapper/320:55:153
192762540,0sleep30-21swapper/300:18:253
275002530,0sleep10-21swapper/100:04:091
126422530,0sleep20-21swapper/221:19:442
284092370,0sleep00-21swapper/000:24:010
260852250,0sleep20-21swapper/222:06:012
289112200,0sleep20-21swapper/223:05:352
279512200,0sleep30-21swapper/323:45:013
135982200,0sleep00-21swapper/022:18:180
213812180,0sleep30-21swapper/300:39:233
137692180,0sleep30-21swapper/300:34:543
31962170,0sleep122-21ksoftirqd/100:28:111
158462170,1sleep015850-21fschecks_time20:40:140
13622150,0sleep00-21swapper/023:48:150
70422140,0sleep00-21swapper/022:53:010
255752140,0sleep30-21swapper/300:02:383
557999134,8cyclictest658-21snmpd23:27:421
557999134,8cyclictest658-21snmpd23:27:421
293622120,0sleep10-21swapper/122:08:341
121542110,0sleep10-21swapper/123:55:001
557999102,3cyclictest658-21snmpd19:16:321
557999102,1cyclictest0-21swapper/123:45:491
557999100,3cyclictest275-21systemd-journal23:35:001
6284290,0sleep30-21swapper/322:33:223
55869990,8cyclictest7931-21sh00:11:013
55799993,2cyclictest663-21runrttasks21:22:201
55799993,2cyclictest14614-21sh22:38:081
55799993,1cyclictest29753-21rm21:49:291
55799993,1cyclictest22635-21latency00:20:141
55799992,3cyclictest658-21snmpd21:13:211
55799992,2cyclictest658-21snmpd22:53:081
55799992,2cyclictest16776-21ssh22:20:131
55799992,2cyclictest1518-21date22:50:001
55799992,2cyclictest13079-21cron00:15:011
55799991,3cyclictest658-21snmpd23:42:361
23079290,0sleep10-21swapper/123:02:311
55799983,1cyclictest20622-21sh21:43:491
55799982,3cyclictest658-21snmpd19:41:371
55799982,2cyclictest658-21snmpd22:16:381
55799982,2cyclictest5876-21cat21:15:141
55799982,2cyclictest0-21swapper/122:40:051
55799982,1cyclictest0-21swapper/100:14:081
55799981,3cyclictest21772-11brltty20:21:271
55799980,5cyclictest10662-21awk20:30:011
55799980,4cyclictest1157-21sh23:09:121
55799980,3cyclictest275-21systemd-journal21:50:451
55769987,1cyclictest12-21ksoftirqd/020:20:010
55769987,1cyclictest12-21ksoftirqd/000:10:000
55769982,4cyclictest7531-21idleruntime-cro22:15:010
3999280,0sleep30-21swapper/322:12:193
55869974,2cyclictest4078-21grep23:30:153
55869974,2cyclictest275-21systemd-journal22:57:303
55869973,3cyclictest7416-21ntpq20:20:163
55869973,3cyclictest658-21snmpd20:51:293
55869973,3cyclictest29946-21cat21:10:123
55869972,4cyclictest9247-21sh19:15:153
55869970,0cyclictest0-21swapper/322:17:073
55849973,3cyclictest275-21systemd-journal22:55:002
55849973,3cyclictest275-21systemd-journal19:43:062
55849973,3cyclictest16327-11brltty22:46:372
55849972,3cyclictest30471-21dump-pmu-power21:50:012
55849972,3cyclictest275-21systemd-journal23:12:202
55799973,3cyclictest275-21systemd-journal21:57:031
55799973,3cyclictest10303-21sshd21:37:161
55799972,2cyclictest658-21snmpd23:19:301
55769974,2cyclictest491-21systemd-logind23:04:090
55769974,2cyclictest12-21ksoftirqd/000:00:000
55769973,3cyclictest658-21snmpd23:28:420
55769973,3cyclictest658-21snmpd23:28:420
55769973,1cyclictest0-21swapper/021:55:100
55769970,3cyclictest65850snmpd23:09:540
31263270,0sleep00-21swapper/021:10:340
14346270,0sleep10-21swapper/122:57:141
55869963,2cyclictest8966-21gdbus22:40:073
55869963,2cyclictest8422-21cron20:29:553
55869963,2cyclictest658-21snmpd23:50:153
55869963,2cyclictest658-21snmpd20:40:223
55869963,2cyclictest658-21snmpd00:23:113
55869963,2cyclictest3560-21taskset20:13:573
55869963,2cyclictest31641-21sh23:27:103
55869963,2cyclictest31641-21sh23:27:103
55869963,2cyclictest275-21systemd-journal21:26:343
55869963,2cyclictest275-21systemd-journal21:26:343
55869963,2cyclictest26006-21cut22:45:123
55869963,2cyclictest23604-21wc19:45:193
55869963,2cyclictest22499-21sh21:45:073
55869963,2cyclictest21772-11brltty19:41:253
55869963,2cyclictest15630-21ssh23:37:043
55869963,2cyclictest14567-21cat21:40:133
55869963,2cyclictest13614-21ls23:55:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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