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2026-03-25 - 09:31
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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 Mar 25, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20982322292,20sleep20-21swapper/219:09:502
17792286253,22sleep10-21swapper/119:05:591
17812258231,18sleep30-21swapper/319:06:003
20072254221,22sleep00-21swapper/019:08:390
17342660,0sleep20-21swapper/222:15:122
67582610,0sleep10-21swapper/119:15:211
153362610,0sleep00-21swapper/022:23:220
326962580,0sleep10-21swapper/122:14:191
12212580,0sleep30-21swapper/321:15:143
284782560,0sleep30-21swapper/321:11:583
133662560,0sleep20-21swapper/221:22:422
158602550,0sleep20-21swapper/222:43:152
263932530,0sleep10-21swapper/121:50:171
108012210,0sleep00-21swapper/023:59:170
91422190,0sleep30-21swapper/322:19:583
139182160,0sleep10-21swapper/122:02:341
51022150,0sleep00-21swapper/021:57:040
247372150,0sleep10-21swapper/121:30:021
20752130,0sleep10-21swapper/122:35:131
202222130,0sleep10-21swapper/100:25:011
202222130,0sleep10-21swapper/100:25:001
222399129,2cyclictest34-21ksoftirqd/300:00:003
323282110,0sleep20-21swapper/223:32:282
221999118,2cyclictest28-21ksoftirqd/222:00:012
97102100,0sleep20-21swapper/222:59:092
222399109,1cyclictest34-21ksoftirqd/323:40:003
22159994,3cyclictest275-21systemd-journal00:30:591
7720280,0sleep10-21swapper/122:18:521
22239986,2cyclictest34-21ksoftirqd/321:35:003
22239983,3cyclictest275-21systemd-journal23:41:543
22199982,4cyclictest9503-21idleruntime-cro19:25:012
22199980,7cyclictest5586-21ssh21:18:022
22159982,3cyclictest3769-21munin-run00:15:001
20516280,0sleep00-21swapper/000:25:120
29683270,2chrt29681-21grep20:10:010
27087270,0sleep10-21swapper/123:29:431
22239976,1cyclictest34-21ksoftirqd/300:25:013
22239976,1cyclictest34-21ksoftirqd/300:25:013
22239975,2cyclictest34-21ksoftirqd/322:40:023
22239975,2cyclictest331rcuc/320:45:113
22239973,3cyclictest658-21snmpd21:23:553
22239973,3cyclictest504-21dbus-daemon21:09:593
22239973,3cyclictest275-21systemd-journal23:15:003
22239972,1cyclictest0-21swapper/322:00:113
22239970,1cyclictest0-21swapper/300:17:403
22199976,1cyclictest28-21ksoftirqd/222:25:012
22199973,3cyclictest658-21snmpd23:12:352
22199973,3cyclictest275-21systemd-journal21:08:372
22199973,3cyclictest275-21systemd-journal20:13:342
22199971,3cyclictest24889-21munin-run21:50:002
22199970,1cyclictest11948-21ssh21:41:142
22159973,3cyclictest658-21snmpd21:43:351
22159973,3cyclictest504-21dbus-daemon21:19:271
22159972,3cyclictest2935-21basename23:15:001
22159970,7cyclictest0-21swapper/100:03:581
22159970,1cyclictest8336-21ssh00:17:121
22119974,2cyclictest13454-21ntpq00:20:170
22119974,2cyclictest13454-21ntpq00:20:170
22119973,3cyclictest658-21snmpd20:32:260
22119973,3cyclictest275-21systemd-journal23:50:000
22119973,3cyclictest275-21systemd-journal21:35:180
22119973,3cyclictest275-21systemd-journal20:17:230
22119973,3cyclictest25718-21cat21:10:170
22119972,3cyclictest275-21systemd-journal21:20:000
14258270,0sleep30-21swapper/323:21:043
22239966,0cyclictest0-21swapper/322:21:163
22239966,0cyclictest0-21swapper/320:05:193
22239965,1cyclictest34-21ksoftirqd/320:40:013
22239965,1cyclictest34-21ksoftirqd/319:20:013
22239964,2cyclictest34-21ksoftirqd/322:10:013
22239964,2cyclictest34-21ksoftirqd/320:20:013
22239963,2cyclictest5663-21ssh22:37:003
22239963,2cyclictest504-21dbus-daemon19:27:133
22239963,2cyclictest25399-21ssh00:27:483
22239963,2cyclictest2203-21rm21:35:193
22239963,2cyclictest18369-21sh21:45:193
22239963,2cyclictest18143-21chrt19:42:053
22239963,2cyclictest16383-21ssh23:03:013
22239963,2cyclictest13488-21ssh21:42:253
22239963,1cyclictest0-21swapper/323:30:053
22239963,1cyclictest0-21swapper/300:31:063
22239963,0cyclictest34-21ksoftirqd/323:15:113
22239962,3cyclictest658-21snmpd23:05:233
22239962,3cyclictest658-21snmpd22:56:403
22239962,3cyclictest658-21snmpd22:47:493
22239962,3cyclictest658-21snmpd21:56:323
22239962,3cyclictest658-21snmpd20:27:003
22239962,3cyclictest658-21snmpd20:13:183
22239962,3cyclictest658-21snmpd19:59:233
22239962,3cyclictest658-21snmpd19:23:373
22239962,3cyclictest658-21snmpd19:12:553
22239962,3cyclictest4483-21expr00:35:123
22239962,3cyclictest27518-21ls22:30:213
22239962,3cyclictest25435-21ls20:00:133
22239962,3cyclictest21790-21ntpq19:50:173
22239962,3cyclictest18894-21expr19:45:123
22239962,3cyclictest18519-21ntp_states22:05:193
22239962,3cyclictest12638-21cat19:30:153
22239962,1cyclictest0-21swapper/322:28:093
22239962,1cyclictest0-21swapper/300:12:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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