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2026-08-26 - 08:06
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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 Aug 26, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
218982289256,22sleep10-21swapper/119:09:041
217622288262,17sleep20-21swapper/219:07:202
219392260229,21sleep00-21swapper/019:09:350
219002254221,22sleep30-21swapper/319:09:063
313772600,0sleep20-21swapper/222:39:462
75572590,0sleep10-21swapper/100:02:541
276562590,0sleep10-21swapper/120:30:191
278172530,0sleep00-21swapper/000:35:000
105172190,0sleep30-21swapper/321:05:253
72342180,0sleep20-21swapper/221:45:252
274102140,0sleep10-21swapper/122:56:111
226722130,0sleep30-21swapper/322:34:393
288432100,1sleep30-21swapper/323:16:513
5665290,0sleep20-21swapper/200:21:012
20953290,1sleep020926-21ssh00:30:200
220779984,3cyclictest753-11brltty00:06:083
220779983,3cyclictest275-21systemd-journal22:35:013
220739982,3cyclictest8418-21basename19:50:012
220689985,2cyclictest22-21ksoftirqd/100:00:001
19867280,0sleep20-21swapper/223:11:182
3943270,0sleep00-21swapper/022:22:550
29474270,0sleep10-21swapper/119:25:011
220779974,2cyclictest275-21systemd-journal20:27:003
220779973,3cyclictest30727-21snmpd20:55:123
220779973,3cyclictest30727-21snmpd00:29:213
220779973,3cyclictest19091-21sort00:10:123
220779972,4cyclictest30727-21snmpd23:31:473
220779972,3cyclictest275-21systemd-journal23:50:013
220739973,3cyclictest504-21dbus-daemon23:30:012
220739973,3cyclictest30727-21snmpd23:23:412
220739973,3cyclictest30727-21snmpd20:45:542
220739973,3cyclictest30727-21snmpd19:55:502
220739972,3cyclictest31570-21munin-run19:30:012
220739970,4cyclictest4946-21munin-run21:45:012
220739970,4cyclictest4946-21munin-run21:45:012
220739970,4cyclictest10272-21awk00:05:002
220739970,3cyclictest275-21systemd-journal00:38:022
220689976,1cyclictest22-21ksoftirqd/120:05:011
220689975,1cyclictest22-21ksoftirqd/123:30:011
220689974,2cyclictest275-21systemd-journal21:46:091
220689974,2cyclictest275-21systemd-journal19:17:001
220689973,3cyclictest30727-21snmpd00:28:331
220689973,3cyclictest30727-21snmpd00:19:261
220689973,3cyclictest275-21systemd-journal20:06:591
220679974,2cyclictest30727-21snmpd23:40:320
220679973,3cyclictest30727-21snmpd21:39:580
220679973,2cyclictest275-21systemd-journal23:30:330
220679970,1cyclictest17963-21ssh21:32:470
7616260,0sleep10-21swapper/122:25:161
28775260,1sleep00-21swapper/023:16:480
25060260,0sleep00-21swapper/021:56:120
23411260,2sleep228-21ksoftirqd/220:20:192
220779966,0cyclictest0-21swapper/323:02:243
220779966,0cyclictest0-21swapper/322:42:333
220779966,0cyclictest0-21swapper/321:36:523
220779966,0cyclictest0-21swapper/300:39:133
220779966,0cyclictest0-21swapper/300:01:133
220779964,1cyclictest30194-21head19:25:153
220779963,2cyclictest8141-21ssh00:22:563
220779963,2cyclictest7828-21ssh22:45:033
220779963,2cyclictest5613-21sh23:41:543
220779963,2cyclictest504-21dbus-daemon21:26:043
220779963,2cyclictest29782-11brltty23:07:123
220779963,2cyclictest28757-21ssh23:36:073
220779963,2cyclictest11929-21ssh22:08:243
220779963,2cyclictest0-21swapper/321:20:093
220779962,3cyclictest8198-21sshd21:46:093
220779962,3cyclictest30727-21snmpd22:51:543
220779962,3cyclictest30727-21snmpd22:15:453
220779962,3cyclictest30727-21snmpd20:50:383
220779962,3cyclictest30727-21snmpd20:31:573
220779962,3cyclictest30727-21snmpd20:21:323
220779962,3cyclictest30727-21snmpd20:09:473
220779962,3cyclictest30727-21snmpd19:56:593
220779962,3cyclictest30727-21snmpd19:30:373
220779962,3cyclictest30727-21snmpd19:13:013
220779962,3cyclictest30727-21snmpd00:30:213
220779962,3cyclictest29782-11brltty23:22:133
220779962,3cyclictest15266-21cat21:50:203
220779962,3cyclictest14401-21date20:00:193
220779962,3cyclictest11630-21date23:45:193
220779962,1cyclictest0-21swapper/322:28:383
220779962,1cyclictest0-21swapper/321:40:053
220779962,1cyclictest0-21swapper/321:40:053
220779962,1cyclictest0-21swapper/321:16:133
220779962,1cyclictest0-21swapper/321:10:003
220779961,3cyclictest275-21systemd-journal23:56:373
220779960,6cyclictest0-21swapper/322:20:113
220779960,6cyclictest0-21swapper/319:40:193
220779960,6cyclictest0-21swapper/319:40:193
220779960,5cyclictest29291-21smartctl20:35:153
220779960,3cyclictest10293-21sshd19:50:593
220779960,2cyclictest25551-21grep22:55:173
220739966,0cyclictest0-21swapper/223:16:432
220739966,0cyclictest0-21swapper/200:13:442
220739963,2cyclictest7847-21ssh21:26:212
220739963,2cyclictest504-21dbus-daemon23:09:172
220739963,2cyclictest504-21dbus-daemon00:19:542
220739963,2cyclictest30727-21snmpd20:14:412
220739963,2cyclictest30690-21ssh22:19:562
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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