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2025-11-19 - 00:38
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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 18, 2025 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
267862309281,17sleep20-21swapper/207:08:552
267862309281,17sleep20-21swapper/207:08:552
265622263230,21sleep00-21swapper/007:05:590
265622263230,21sleep00-21swapper/007:05:590
267822260226,21sleep30-21swapper/307:08:523
267822260226,21sleep30-21swapper/307:08:523
267852258224,22sleep10-21swapper/107:08:541
267852258224,22sleep10-21swapper/107:08:531
85812620,0sleep30-21swapper/312:06:273
196492620,0sleep30-21swapper/311:48:563
91512600,0sleep10-21swapper/109:29:431
139782600,0sleep00-21swapper/009:00:150
316692560,0sleep20-21swapper/209:48:072
240402560,0sleep30-21swapper/311:00:153
141672210,2sleep0141rcu_preempt10:51:520
59292160,0sleep20-21swapper/210:19:182
324292160,0sleep00-21swapper/010:40:190
175102160,0sleep00-21swapper/012:13:070
86172150,0sleep20-21swapper/209:29:082
270119996,2cyclictest34-21ksoftirqd/308:35:003
270079990,2cyclictest24649-21ssh10:34:172
270039996,2cyclictest22-21ksoftirqd/111:34:591
270039994,3cyclictest19982-21systemd-journal11:05:551
15736290,0sleep10-21swapper/110:26:061
6176280,0sleep20-21swapper/210:45:172
30921280,3sleep030941-21ssh11:32:170
270119987,1cyclictest34-21ksoftirqd/312:30:003
270119984,2cyclictest34-21ksoftirqd/310:25:023
270119983,3cyclictest7661-21lldpd10:37:493
270119983,3cyclictest19982-21systemd-journal10:20:013
270119983,3cyclictest19982-21systemd-journal10:04:493
270119983,3cyclictest19982-21systemd-journal07:39:483
270119981,4cyclictest19982-21systemd-journal11:35:123
270079984,3cyclictest508-21dbus-daemon11:58:042
270079984,3cyclictest19982-21systemd-journal12:31:002
270079983,4cyclictest508-21dbus-daemon07:17:422
270079983,3cyclictest508-21dbus-daemon07:43:592
270079983,3cyclictest19982-21systemd-journal07:25:012
269999983,3cyclictest19982-21systemd-journal08:54:040
6874270,0sleep00-21swapper/012:26:260
270119977,0cyclictest0-21swapper/307:29:483
270119976,1cyclictest34-21ksoftirqd/311:20:003
270119975,2cyclictest34-21ksoftirqd/308:00:013
270119975,1cyclictest34-21ksoftirqd/309:20:013
270119974,2cyclictest638-21sshd09:49:383
270119974,2cyclictest508-21dbus-daemon08:05:413
270119973,3cyclictest508-21dbus-daemon11:35:003
270119973,3cyclictest508-21dbus-daemon09:09:053
270119973,3cyclictest508-21dbus-daemon08:00:153
270119973,3cyclictest30654-21snmpd08:41:243
270119973,3cyclictest20434-21diskstats12:35:183
270119973,3cyclictest19982-21systemd-journal09:00:453
270119973,3cyclictest19982-21systemd-journal07:49:163
270119973,1cyclictest0-21swapper/311:58:313
270119972,3cyclictest19982-21systemd-journal08:54:543
270119971,4cyclictest19982-21systemd-journal09:30:473
270119971,4cyclictest19982-21systemd-journal08:11:063
270119970,6cyclictest9205-21ntpq11:40:183
270079975,1cyclictest29223-21nin-node07:15:012
270079973,3cyclictest508-21dbus-daemon12:27:412
270079973,3cyclictest508-21dbus-daemon11:15:562
270079973,3cyclictest22882-21sshd10:59:472
270079973,3cyclictest21892-21sed11:25:182
270079973,3cyclictest19982-21systemd-journal12:13:362
270079973,3cyclictest19982-21systemd-journal08:24:022
270079973,3cyclictest0-21swapper/212:00:042
270079973,1cyclictest0-21swapper/211:31:312
270079973,1cyclictest0-21swapper/211:07:462
270079973,1cyclictest0-21swapper/210:12:432
270039975,2cyclictest22-21ksoftirqd/108:55:001
270039974,2cyclictest30654-21snmpd12:14:341
270039973,3cyclictest838-21ntpq07:20:161
270039973,3cyclictest508-21dbus-daemon10:02:551
270039973,3cyclictest508-21dbus-daemon07:55:191
270039973,3cyclictest28521-21wc08:20:161
270039973,3cyclictest21147-21cron09:40:001
270039973,3cyclictest19982-21systemd-journal08:13:111
270039973,3cyclictest0-21swapper/112:17:391
270039973,2cyclictest4350-21idleruntime-cro08:40:011
270039973,2cyclictest19982-21systemd-journal10:35:081
270039973,1cyclictest0-21swapper/111:26:281
270039973,1cyclictest0-21swapper/111:10:141
270039973,1cyclictest0-21swapper/111:02:141
270039973,1cyclictest0-21swapper/110:57:281
270039973,1cyclictest0-21swapper/110:54:161
270039972,4cyclictest0-21swapper/109:10:071
270039972,3cyclictest19982-21systemd-journal12:36:271
270039972,3cyclictest19982-21systemd-journal11:19:451
270039972,1cyclictest0-21swapper/111:53:281
269999976,0cyclictest0-21swapper/009:30:130
269999975,2cyclictest12-21ksoftirqd/011:10:010
269999974,2cyclictest508-21dbus-daemon10:02:050
269999974,2cyclictest19982-21systemd-journal09:49:360
269999973,3cyclictest7661-21lldpd12:06:060
269999973,3cyclictest5079-21cut07:30:140
269999973,3cyclictest30654-21snmpd11:21:440
269999973,3cyclictest29741-11brltty07:35:130
269999973,3cyclictest19982-21systemd-journal09:19:390
269999973,3cyclictest1-21systemd08:46:090
269999973,3cyclictest11908-21df07:45:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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