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2023-12-10 - 19:01
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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 50 highest latencies:
System rack0slot4.osadl.org (updated Sun Dec 10, 2023 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2179762366359,4sleep90-21swapper/919:05:4215
2173242351345,3sleep50-21swapper/519:05:3811
2182252346309,10sleep100-21swapper/1019:08:242
2183122341322,10sleep150-21swapper/1519:09:337
2182562339319,11sleep140-21swapper/1419:08:436
2183502338320,10sleep40-21swapper/419:09:5510
2180422337317,11sleep20-21swapper/219:05:518
2147732337319,10sleep80-21swapper/819:05:0914
2183492336316,11sleep30-21swapper/319:09:549
2182742336317,10sleep120-21swapper/1219:08:584
2182212336315,11sleep60-21swapper/619:08:2012
2182592334316,10sleep00-21swapper/019:08:460
2182352333315,10sleep10-21swapper/119:08:311
2182672332312,11sleep70-21swapper/719:08:5313
2147782332314,10sleep130-21swapper/1319:05:145
2182902330312,10sleep110-21swapper/1119:09:133
218735993413,21cyclictest0-21swapper/121:16:431
21877599220,22cyclictest0-21swapper/1200:14:374
21877599220,11cyclictest571743-21ntpq00:25:374
218764992010,10cyclictest0-21swapper/921:05:5915
21876499200,17cyclictest0-21swapper/921:59:0615
21876199200,17cyclictest0-21swapper/822:09:0314
21875999200,17cyclictest0-21swapper/720:28:1213
21875999200,17cyclictest0-21swapper/720:28:1213
21875099200,20cyclictest0-21swapper/519:10:2811
21873199201,0cyclictest0-21swapper/019:10:280
218780991918,1cyclictest71959-21kworker/13:219:10:285
21877399190,16cyclictest0-21swapper/1120:19:243
21877399190,16cyclictest0-21swapper/1120:19:243
21874099190,16cyclictest0-21swapper/222:36:138
21878899180,16cyclictest0-21swapper/1521:35:597
21878899180,15cyclictest0-21swapper/1500:33:077
21877599180,15cyclictest450735-21diskstats22:50:224
21877399180,18cyclictest0-21swapper/1123:11:423
21876999180,15cyclictest0-21swapper/1022:47:162
128699180,0ntpd81-21ksoftirqd/922:16:4015
21878899170,17cyclictest0-21swapper/1523:18:357
21878899170,17cyclictest0-21swapper/1521:48:327
21878899170,15cyclictest0-21swapper/1520:00:207
21878899170,14cyclictest0-21swapper/1521:42:477
21878899170,0cyclictest0-21swapper/1521:32:567
218783991716,1cyclictest1704-21snmpd22:23:246
21878099170,16cyclictest0-21swapper/1323:21:265
21878099170,14cyclictest0-21swapper/1322:52:345
21878099170,0cyclictest0-21swapper/1300:16:465
21877599170,14cyclictest0-21swapper/1221:27:504
218773991716,1cyclictest247791-21cat19:40:253
21877399170,14cyclictest0-21swapper/1120:22:033
21877399170,14cyclictest0-21swapper/1120:22:033
21877399170,0cyclictest0-21swapper/1121:16:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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