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2026-09-20 - 03:18
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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 Sun Sep 20, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
123042276246,20sleep20-21swapper/219:06:382
124852275244,21sleep10-21swapper/119:08:421
123182275213,20sleep00-21swapper/019:06:480
125302259229,19sleep30-21swapper/319:09:183
129302670,0sleep20-21swapper/221:15:242
171742640,0sleep10-21swapper/123:34:011
112862630,0sleep00-21swapper/021:15:130
315862610,0sleep00-21swapper/021:00:210
103822600,0sleep20-21swapper/223:49:282
76042590,0sleep30-21swapper/322:49:513
266932570,0sleep30-21swapper/320:50:143
269682560,0sleep30-21swapper/323:40:013
83172550,0sleep00-21swapper/000:26:150
89032190,0sleep20-21swapper/222:11:072
223192190,0sleep30-21swapper/320:40:183
48142180,0sleep10-21swapper/122:09:221
48142180,0sleep10-21swapper/122:09:221
284922160,0sleep10-21swapper/122:23:181
68452150,0sleep20-21swapper/200:05:592
75802130,0sleep00-21swapper/021:31:430
124582130,1sleep3331rcuc/322:52:113
10352130,0sleep30-21swapper/319:55:013
113772120,0sleep20-21swapper/222:32:012
225512110,0sleep10-21swapper/121:40:221
194812110,0sleep30-21swapper/322:17:493
28422290,1sleep20-21swapper/222:23:162
26589290,3sleep122-21ksoftirqd/100:37:091
11376290,0sleep10-21swapper/123:50:041
127089986,1cyclictest30845-21awk21:45:193
126999981,4cyclictest23229-21dump-pmu-power20:44:591
126969985,2cyclictest12-21ksoftirqd/000:40:000
18327270,0sleep30-21swapper/321:57:413
127089973,3cyclictest275-21systemd-journal00:30:003
127089973,3cyclictest14415-21snmpd23:14:463
127089973,3cyclictest14415-21snmpd21:32:373
127089973,3cyclictest0-21swapper/323:15:253
127089972,4cyclictest14917-21snmpd23:56:283
127089970,1cyclictest0-21swapper/322:13:073
127049975,1cyclictest28-21ksoftirqd/200:00:012
127049974,2cyclictest275-21systemd-journal22:25:252
127049973,3cyclictest275-21systemd-journal21:02:082
127049973,3cyclictest275-21systemd-journal20:18:252
127049973,3cyclictest14415-21snmpd19:54:012
127049970,7cyclictest0-21swapper/221:33:552
126999973,3cyclictest504-21dbus-daemon22:40:001
126999973,3cyclictest275-21systemd-journal19:21:021
126999973,3cyclictest24669-21pluginstate23:00:011
126999973,3cyclictest13480-11brltty22:10:131
126999973,2cyclictest275-21systemd-journal00:02:351
126999973,2cyclictest275-21systemd-journal00:02:351
126999972,3cyclictest3171-21ls20:00:001
126999972,3cyclictest13043-21perf21:55:021
126999972,2cyclictest13308-21apt-get00:29:591
126999970,4cyclictest28930-21awk19:45:001
126969973,3cyclictest14917-21snmpd00:32:360
126969973,3cyclictest14415-21snmpd20:45:300
126969973,2cyclictest275-21systemd-journal22:02:250
126969973,1cyclictest3825-21turbostat00:05:010
126969973,1cyclictest3825-21turbostat00:05:000
126969973,1cyclictest0-21swapper/023:35:120
126969971,3cyclictest30188-21turbostat21:00:000
16644260,0sleep20-21swapper/221:56:252
127089966,0cyclictest0-21swapper/321:11:393
127089966,0cyclictest0-21swapper/319:21:273
127089966,0cyclictest0-21swapper/300:14:513
127089963,2cyclictest9744-21ssh21:52:313
127089963,2cyclictest504-21dbus-daemon23:30:013
127089963,2cyclictest31712-21sh00:01:333
127089963,2cyclictest31712-21sh00:01:333
127089963,2cyclictest28654-21ssh21:25:153
127089963,2cyclictest275-21systemd-journal20:06:243
127089963,2cyclictest275-21systemd-journal19:15:243
127089963,2cyclictest27028-21ssh00:18:383
127089963,2cyclictest2219-21cron21:09:593
127089963,2cyclictest19295-21ssh22:55:583
127089963,2cyclictest16206-21ssh22:35:143
127089963,2cyclictest16013-21ssh23:52:233
127089963,2cyclictest14415-21snmpd21:42:343
127089963,2cyclictest11257-21cat21:15:143
127089963,2cyclictest0-21swapper/322:25:263
127089962,3cyclictest20899-21cat19:25:173
127089962,3cyclictest14917-21snmpd00:05:593
127089962,3cyclictest14415-21snmpd23:41:563
127089962,3cyclictest14415-21snmpd23:22:023
127089962,3cyclictest14415-21snmpd23:06:543
127089962,3cyclictest14415-21snmpd22:21:213
127089962,3cyclictest14415-21snmpd22:02:263
127089962,3cyclictest14415-21snmpd21:37:493
127089962,3cyclictest14415-21snmpd20:46:363
127089962,3cyclictest14415-21snmpd20:35:363
127089962,3cyclictest14415-21snmpd19:48:203
127089962,3cyclictest14415-21snmpd19:40:173
127089962,3cyclictest12878-21seq19:10:053
127089962,3cyclictest0-21swapper/323:00:483
127089962,1cyclictest0-21swapper/322:32:203
127089962,1cyclictest0-21swapper/322:06:223
127089962,1cyclictest0-21swapper/322:06:223
127089961,4cyclictest0-21swapper/323:46:583
127089960,6cyclictest0-21swapper/321:20:113
127089960,6cyclictest0-21swapper/319:58:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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