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2024-07-27 - 03:18
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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 rack4slot6.osadl.org (updated Sat Jul 27, 2024 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1633652970,89pltrace0-21swapper/719:09:317
1621828649,10sleep60-21swapper/619:08:006
1610227460,10sleep30-21swapper/319:06:213
1623527360,9sleep50-21swapper/519:08:155
1621427056,10sleep20-21swapper/219:07:572
1635426741,5sleep40-21swapper/419:09:344
1618226248,10sleep00-21swapper/019:07:310
1609126147,10sleep10-21swapper/119:06:121
2389852250,2pltrace0-21swapper/120:19:541
1661899230,16cyclictest0-21swapper/323:26:083
1660699231,15cyclictest0-21swapper/020:17:510
1662399220,16cyclictest0-21swapper/423:35:574
16614992016,2cyclictest0-21swapper/220:38:192
1490152200,5pltrace0-21swapper/722:02:267
91852180,11pltrace2765-21cut21:35:176
16614991815,2cyclictest0-21swapper/222:58:242
436452170,11pltrace7016-21chrt19:47:463
312752170,12pltrace54-21ksoftirqd/423:35:004
16630991712,3cyclictest0-21swapper/519:11:275
16630991711,5cyclictest0-21swapper/523:51:135
16630991711,3cyclictest0-21swapper/519:31:165
1663099171,8cyclictest0-21swapper/521:23:025
1663099171,15cyclictest0-21swapper/523:20:125
1663099170,15cyclictest0-21swapper/522:56:105
1660699171,4cyclictest0-21swapper/019:43:110
1552952170,1pltrace0-21swapper/120:04:251
2839252160,10pltrace54-21ksoftirqd/419:34:174
16638991611,4cyclictest0-21swapper/723:10:007
16638991611,3cyclictest0-21swapper/721:36:027
1663899161,3cyclictest0-21swapper/719:49:327
1663899160,4cyclictest0-21swapper/722:39:237
16630991610,5cyclictest0-21swapper/521:46:545
16630991610,5cyclictest0-21swapper/521:46:535
16630991610,5cyclictest0-21swapper/521:11:115
16630991610,3cyclictest0-21swapper/520:12:265
1663099161,8cyclictest0-21swapper/520:29:155
1663099160,8cyclictest0-21swapper/500:22:365
16623991612,2cyclictest0-21swapper/423:57:434
16623991612,2cyclictest0-21swapper/421:01:494
16623991611,3cyclictest0-21swapper/421:56:184
16623991611,3cyclictest0-21swapper/421:29:264
1662399161,7cyclictest0-21swapper/420:28:454
1661899161,7cyclictest0-21swapper/300:04:133
1661899161,4cyclictest0-21swapper/319:58:593
1661899160,4cyclictest0-21swapper/322:31:183
16614991612,2cyclictest0-21swapper/200:32:142
16614991610,3cyclictest0-21swapper/200:01:482
1661499160,8cyclictest0-21swapper/222:47:102
1661499160,4cyclictest0-21swapper/220:58:542
1661499160,15cyclictest0-21swapper/223:50:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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