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2023-09-28 - 13:47
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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 100 highest latencies:
System rackdslot1.osadl.org (updated Thu Sep 28, 2023 00:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
876121710,7sleep0840199cyclictest20:20:370
1176911590,8ptp4l0-21swapper/119:05:551
1176911530,46ptp4l0-21swapper/019:09:050
1176911070,10ptp4l0-21swapper/319:09:003
1176911040,9ptp4l0-21swapper/219:07:292
117691890,6ptp4l1159-21snmpd23:03:430
34612830,3sleep30-21swapper/323:35:403
117691790,16ptp4l1159-21snmpd22:15:530
117691790,16ptp4l1159-21snmpd22:15:520
117691770,4ptp4l1185-21lldpd23:05:330
117691760,29ptp4l9-21ksoftirqd/000:00:410
117691720,2ptp4l0-21swapper/021:02:140
117691710,15ptp4l1159-21snmpd21:56:110
117691700,22ptp4l1185-21lldpd00:32:270
117691680,5ptp4l1185-21lldpd00:37:540
117691680,4ptp4l216-21systemd-journal20:02:170
117691680,33ptp4l9-21ksoftirqd/019:30:400
117691680,2ptp4l0-21swapper/022:52:520
117691680,21ptp4l1185-21lldpd19:10:390
117691670,6ptp4l1185-21lldpd19:58:350
117691670,5ptp4l1159-21snmpd20:48:350
117691670,4ptp4l1185-21lldpd00:28:480
135422660,3sleep3401ktimersoftd/321:40:273
117691660,5ptp4l1159-21snmpd22:09:320
117691660,4ptp4l1185-21lldpd21:47:420
117691660,3ptp4l1185-21lldpd21:33:300
8402996521,15cyclictest1185-21lldpd22:20:401
117691650,5ptp4l1159-21snmpd22:35:510
117691650,4ptp4l1185-21lldpd23:23:330
117691650,4ptp4l1185-21lldpd21:15:210
117691650,3ptp4l1159-21snmpd19:40:200
117691640,5ptp4l1185-21lldpd20:05:130
117691640,5ptp4l1159-21snmpd20:27:450
117691640,4ptp4l1185-21lldpd23:33:320
117691640,1ptp4l0-21swapper/020:32:150
117691630,5ptp4l1185-21lldpd20:37:430
117691630,5ptp4l1159-21snmpd23:56:320
117691630,5ptp4l1159-21snmpd22:56:470
117691630,4ptp4l1185-21lldpd22:43:050
117691630,4ptp4l1185-21lldpd22:24:530
117691630,4ptp4l1185-21lldpd19:53:030
117691630,2ptp4l0-21swapper/122:10:311
117691630,10ptp4l0-21swapper/019:22:170
117691620,6ptp4l1159-21snmpd23:36:411
117691620,5ptp4l4813-21in:imuxsock21:46:291
117691620,5ptp4l1159-21snmpd20:19:400
117691620,4ptp4l1185-21lldpd19:55:011
117691620,2ptp4l0-21swapper/023:14:370
117691620,2ptp4l0-21swapper/000:10:000
117691610,5ptp4l1185-21lldpd23:16:571
117691610,5ptp4l1185-21lldpd23:16:561
117691610,5ptp4l1185-21lldpd22:50:071
117691610,5ptp4l1185-21lldpd22:04:561
117691610,5ptp4l1185-21lldpd21:54:091
117691610,5ptp4l1185-21lldpd21:09:471
117691610,5ptp4l1185-21lldpd20:37:291
117691610,5ptp4l1185-21lldpd19:17:591
117691610,5ptp4l1159-21snmpd23:52:280
117691610,4ptp4l216-21systemd-journal22:07:471
117691610,4ptp4l1185-21lldpd23:42:330
117691610,4ptp4l1185-21lldpd22:12:160
117691610,4ptp4l1185-21lldpd20:46:431
117691610,4ptp4l1185-21lldpd20:03:071
117691610,4ptp4l1185-21lldpd19:38:510
117691610,4ptp4l1185-21lldpd00:05:321
117691610,4ptp4l1159-21snmpd21:22:080
117691610,3ptp4l1185-21lldpd22:56:161
117691610,3ptp4l1159-21snmpd22:34:500
117691610,2ptp4l0-21swapper/021:12:140
117691610,2ptp4l0-21swapper/021:12:130
117691600,5ptp4l1185-21lldpd21:44:371
117691600,4ptp4l1185-21lldpd22:29:121
117691600,4ptp4l1185-21lldpd21:59:341
117691600,4ptp4l1185-21lldpd20:56:001
117691600,4ptp4l1185-21lldpd20:34:221
117691600,4ptp4l1185-21lldpd19:26:291
117691600,4ptp4l1185-21lldpd00:26:311
117691600,4ptp4l1159-21snmpd22:00:260
117691600,4ptp4l1159-21snmpd20:44:311
117691600,2ptp4l0-21swapper/123:10:171
117691600,2ptp4l0-21swapper/119:21:421
117691600,15ptp4l1185-21lldpd20:50:240
117691590,5ptp4l1159-21snmpd19:41:261
117691590,4ptp4l1185-21lldpd23:54:501
117691590,4ptp4l1185-21lldpd22:44:251
117691590,4ptp4l1185-21lldpd20:23:531
117691590,4ptp4l1185-21lldpd19:47:330
117691590,4ptp4l1159-21snmpd23:23:391
117691590,4ptp4l1159-21snmpd21:17:081
117691590,4ptp4l1159-21snmpd20:15:101
117691590,2ptp4l0-21swapper/100:02:271
117691590,2ptp4l0-21swapper/020:10:400
117691580,4ptp4l1185-21lldpd21:27:551
117691580,4ptp4l1185-21lldpd20:50:571
117691580,4ptp4l1185-21lldpd00:32:061
117691580,4ptp4l1159-21snmpd21:03:081
117691580,4ptp4l1159-21snmpd00:20:221
117691580,4ptp4l1159-21snmpd00:20:221
117691580,4ptp4l1159-21snmpd00:16:170
117691580,3ptp4l1159-21snmpd22:47:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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