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2024-04-18 - 04:18
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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 Thu Apr 18, 2024 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19356521180,55pltrace0-21swapper/719:05:157
22163521010,85pltrace0-21swapper/619:09:306
850152920,0pltrace0-21swapper/620:35:366
1935652890,84pltrace0-21swapper/519:05:145
2214028547,11sleep30-21swapper/319:05:333
2216352800,75pltrace0-21swapper/119:08:421
2233127056,10sleep20-21swapper/219:07:572
2228726240,17sleep40-21swapper/419:07:184
2238526046,10sleep00-21swapper/019:08:430
1627152350,1pltrace16275-21pltrace-run22:45:367
2865252330,6pltrace0-21swapper/719:20:237
3085552300,2pltrace0-21swapper/721:15:527
1458352270,0pltrace0-21swapper/723:45:127
900252240,0pltrace0-21swapper/723:31:117
2266699230,12cyclictest0-21swapper/321:23:233
57352220,4pltrace0-21swapper/723:17:107
2267499210,20cyclictest0-21swapper/519:15:295
1856052200,0pltrace0-21swapper/720:00:227
2856152190,4pltrace0-21swapper/700:10:197
1348552190,6pltrace78-21ksoftirqd/722:43:097
2356252180,3pltrace0-21swapper/722:00:537
2015852180,14pltrace20351-21chrt23:53:070
2416952170,0pltrace0-21swapper/720:08:057
2356252170,3pltrace0-21swapper/622:04:576
2268399171,15cyclictest0-21swapper/722:08:547
2267899171,15cyclictest0-21swapper/621:19:326
22674991711,3cyclictest0-21swapper/523:30:305
2267499170,2cyclictest0-21swapper/520:45:465
22670991711,5cyclictest0-21swapper/421:18:024
22662991715,1cyclictest0-21swapper/220:33:152
2915752160,10pltrace29422-21taskset22:14:182
22683991611,3cyclictest0-21swapper/721:45:417
22683991610,5cyclictest0-21swapper/700:06:277
22683991610,3cyclictest0-21swapper/720:49:017
2268399160,15cyclictest0-21swapper/723:37:027
22678991615,1cyclictest0-21swapper/622:54:596
22678991613,2cyclictest0-21swapper/619:18:586
2267899161,4cyclictest0-21swapper/620:24:306
2267899160,15cyclictest0-21swapper/622:11:246
22674991611,3cyclictest0-21swapper/522:16:185
22674991611,3cyclictest0-21swapper/521:02:445
22670991611,4cyclictest0-21swapper/400:26:234
22670991611,3cyclictest0-21swapper/422:27:244
22670991611,3cyclictest0-21swapper/419:25:494
22670991611,3cyclictest0-21swapper/419:16:534
22670991611,3cyclictest0-21swapper/400:12:134
22670991610,3cyclictest0-21swapper/423:05:084
2267099161,8cyclictest0-21swapper/423:24:184
2267099161,4cyclictest0-21swapper/421:41:184
2267099161,4cyclictest0-21swapper/421:41:184
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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