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2026-05-23 - 05:54
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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 Sat May 23, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234672287255,21sleep00-21swapper/019:05:450
234402285262,15sleep10-21swapper/119:05:301
237722273242,21sleep20-21swapper/219:09:282
236942263232,20sleep30-21swapper/319:08:293
71852630,0sleep10-21swapper/122:21:301
210182610,0sleep00-21swapper/023:28:210
165212610,0sleep10-21swapper/100:24:201
41912590,0sleep00-21swapper/023:18:160
71102580,0sleep30-21swapper/323:00:173
222732580,0sleep10-21swapper/100:27:081
9142570,0sleep10-21swapper/122:56:341
154642570,0sleep10-21swapper/121:48:121
30302550,0sleep10-21swapper/122:19:581
251722180,0sleep00-21swapper/022:13:300
54252160,0sleep20-21swapper/221:23:362
253892160,0sleep20-21swapper/222:13:402
134912130,0sleep10-21swapper/100:02:331
2731280,0sleep20-21swapper/221:40:152
239299987,1cyclictest10561-21lspci21:25:403
239299984,3cyclictest275-21systemd-journal23:13:373
239259986,1cyclictest28-21ksoftirqd/220:20:002
239219986,2cyclictest658-21snmpd00:32:051
239219981,4cyclictest20103-21idleruntime-cro22:30:011
239199980,7cyclictest19253-21sh22:29:240
239299973,3cyclictest491-21systemd-logind00:25:173
239299973,3cyclictest275-21systemd-journal23:40:003
239299973,3cyclictest275-21systemd-journal22:06:063
239299973,3cyclictest275-21systemd-journal21:24:543
239299973,3cyclictest275-21systemd-journal20:50:023
239299972,3cyclictest275-21systemd-journal20:30:003
239259976,1cyclictest28-21ksoftirqd/219:15:012
239259974,2cyclictest275-21systemd-journal23:38:382
239259973,3cyclictest275-21systemd-journal23:52:242
239259973,3cyclictest275-21systemd-journal22:23:062
239259973,3cyclictest26124-21cut21:35:132
239259973,1cyclictest0-21swapper/222:45:122
239219976,1cyclictest12344-21ssh22:44:411
239219973,3cyclictest658-21snmpd23:09:261
239219971,5cyclictest0-21swapper/119:50:011
239199976,1cyclictest12-21ksoftirqd/021:20:000
239199974,2cyclictest491-21systemd-logind21:26:210
239199973,3cyclictest658-21snmpd22:35:410
239199973,3cyclictest658-21snmpd20:59:540
239199973,3cyclictest527-21gdbus22:30:430
239199973,3cyclictest275-21systemd-journal21:56:190
239199973,3cyclictest275-21systemd-journal19:55:190
239199970,5cyclictest9519-21idleruntime-cro21:45:010
15763270,0sleep20-21swapper/200:23:442
239299966,0cyclictest0-21swapper/323:43:523
239299966,0cyclictest0-21swapper/323:24:013
239299963,2cyclictest8372-21sh22:03:273
239299963,2cyclictest8052-21sh22:22:113
239299963,2cyclictest658-21snmpd20:56:583
239299963,2cyclictest658-21snmpd00:20:523
239299963,2cyclictest5656-21sed19:40:013
239299963,2cyclictest504-21dbus-daemon21:48:243
239299963,2cyclictest504-21dbus-daemon20:19:563
239299963,2cyclictest29923-21cat19:20:163
239299963,2cyclictest29265-21ssh22:54:523
239299963,2cyclictest28747-11brltty19:40:183
239299963,2cyclictest16105-21sh23:45:063
239299963,2cyclictest14925-21ssh22:26:033
239299963,1cyclictest0-21swapper/323:25:173
239299963,1cyclictest0-21swapper/300:35:523
239299962,3cyclictest658-21snmpd23:50:373
239299962,3cyclictest658-21snmpd23:05:143
239299962,3cyclictest658-21snmpd22:41:223
239299962,3cyclictest658-21snmpd22:18:253
239299962,3cyclictest658-21snmpd21:14:323
239299962,3cyclictest658-21snmpd21:09:583
239299962,3cyclictest658-21snmpd19:51:403
239299962,3cyclictest658-21snmpd19:32:353
239299962,3cyclictest658-21snmpd19:26:563
239299962,3cyclictest623-21expr20:40:113
239299962,3cyclictest527-21gdbus22:36:483
239299962,3cyclictest28747-11brltty20:23:163
239299962,3cyclictest25680-21taskset22:13:533
239299962,3cyclictest19380-21ntp_offset21:50:183
239299962,1cyclictest0-21swapper/322:57:243
239299962,1cyclictest0-21swapper/322:34:203
239299962,1cyclictest0-21swapper/321:15:513
239299962,1cyclictest0-21swapper/300:31:133
239299962,1cyclictest0-21swapper/300:06:063
239299960,6cyclictest13756-21diskmemload00:04:413
239299960,6cyclictest0-21swapper/323:55:113
239299960,6cyclictest0-21swapper/323:31:073
239299960,6cyclictest0-21swapper/321:41:533
239299960,6cyclictest0-21swapper/300:15:163
239299960,5cyclictest17263-21/usr/sbin/munin21:30:193
239299960,1cyclictest0-21swapper/319:15:203
239259966,0cyclictest0-21swapper/222:38:032
239259966,0cyclictest0-21swapper/221:46:062
239259966,0cyclictest0-21swapper/219:45:182
239259966,0cyclictest0-21swapper/219:35:122
239259966,0cyclictest0-21swapper/200:00:272
239259965,1cyclictest0-21swapper/200:11:012
239259963,2cyclictest6679-21ntpq19:40:172
239259963,2cyclictest658-21snmpd21:26:402
239259963,2cyclictest5061-21sshd20:50:072
239259963,2cyclictest29383-21ssh23:33:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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