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2024-03-03 - 16:45
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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
Characteristics of the 50 highest latencies:
System rackdslot1.osadl.org (updated Sun Mar 03, 2024 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1176911720,16ptp4l216-21systemd-journal07:08:170
2929121370,8sleep12763299cyclictest10:38:271
1176911270,8ptp4l0-21swapper/107:09:061
1176911160,8ptp4l0-21swapper/307:05:173
1176911120,13ptp4l4815-21rs:main2
297702920,9sleep32763499cyclictest10:40:233
117691890,4ptp4l1185-21lldpd07:20:323
117691890,2ptp4l0-21swapper/208:22:172
117691770,9ptp4l0-21swapper/211:12:512
117691770,4ptp4l216-21systemd-journal07:44:182
117691740,5ptp4l1185-21lldpd08:51:430
117691740,22ptp4l1159-21snmpd08:27:361
244312730,8sleep04815-21rs:main0
117691730,2ptp4l0-21swapper/210:33:412
117691730,2ptp4l0-21swapper/008:15:220
117691730,21ptp4l1185-21lldpd11:07:392
117691720,4ptp4l1185-21lldpd11:33:172
117691720,2ptp4l0-21swapper/211:45:482
117691700,6ptp4l1185-21lldpd09:38:590
117691700,6ptp4l1185-21lldpd09:38:590
117691700,2ptp4l0-21swapper/211:59:092
117691700,2ptp4l0-21swapper/010:45:350
117691680,5ptp4l0-21swapper/207:55:092
117691680,4ptp4l4815-21rs:main3
117691680,4ptp4l1185-21lldpd11:35:262
117691680,21ptp4l4815-21rs:main3
117691680,20ptp4l1185-21lldpd08:00:330
117691670,8ptp4l1185-21lldpd08:48:572
117691670,4ptp4l1159-21snmpd09:08:580
117691670,4ptp4l0-21swapper/209:35:392
117691670,4ptp4l0-21swapper/209:35:392
117691670,2ptp4l0-21swapper/311:09:203
117691670,22ptp4l1185-21lldpd08:54:042
279472660,2sleep20-21swapper/210:35:272
117691660,6ptp4l311rcuc/208:38:302
117691660,6ptp4l311rcuc/208:38:302
117691660,5ptp4l1159-21snmpd12:06:503
117691660,5ptp4l1159-21snmpd08:57:283
117691660,4ptp4l1185-21lldpd09:25:560
117691660,2ptp4l0-21swapper/012:34:420
117691660,24ptp4l1159-21snmpd10:27:391
117691660,23ptp4l4813-21in:imuxsock10:07:462
117691660,23ptp4l216-21systemd-journal10:15:322
117691660,20ptp4l1185-21lldpd08:09:132
117691660,19ptp4l1185-21lldpd08:05:400
117691650,5ptp4l216-21systemd-journal10:26:452
117691650,5ptp4l1185-21lldpd09:20:082
117691650,5ptp4l1159-21snmpd07:33:250
117691650,5ptp4l1159-21snmpd07:10:593
117691650,4ptp4l1185-21lldpd09:12:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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