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2024-07-16 - 08:27
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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 Tue Jul 16, 2024 00:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18679521220,113pltrace0-21swapper/119:05:291
21466521120,109pltrace0-21swapper/319:08:463
21466521010,93pltrace0-21swapper/719:07:377
1656921010,1sleep2361rcuc/222:50:132
1867952980,82pltrace0-21swapper/519:06:525
320402800,0sleep70-21swapper/720:25:007
2150127547,10sleep20-21swapper/219:07:572
2132727142,10sleep40-21swapper/419:05:494
2144226754,9sleep60-21swapper/619:07:296
2156426652,10sleep00-21swapper/019:08:510
312122340,1sleep40-21swapper/422:16:184
2795852340,1pltrace0-21swapper/319:17:323
118152280,0pltrace0-21swapper/700:20:327
118152280,0pltrace0-21swapper/700:20:327
21837992013,3cyclictest78-21ksoftirqd/722:55:307
2181899200,19cyclictest0-21swapper/323:55:163
1895752200,3pltrace54-21ksoftirqd/421:02:264
896652190,13pltrace54-21ksoftirqd/421:40:014
950152180,0pltrace0-21swapper/719:45:277
677752180,0pltrace0-21swapper/700:31:467
566852180,11pltrace7677-21open_files23:30:251
2795852180,10pltrace54-21ksoftirqd/419:21:304
3074552170,2pltrace0-21swapper/719:25:387
21837991714,2cyclictest30903-21sshd00:13:477
21830991711,5cyclictest0-21swapper/522:55:255
21826991711,5cyclictest0-21swapper/400:25:074
2181899174,12cyclictest0-21swapper/300:34:513
21818991712,4cyclictest0-21swapper/322:50:353
2180999171,15cyclictest0-21swapper/120:43:091
2146652170,12pltrace1132-21snmpd19:12:171
223152160,11pltrace54-21ksoftirqd/420:29:114
21830991611,3cyclictest0-21swapper/523:44:565
21830991611,3cyclictest0-21swapper/523:05:435
21826991610,5cyclictest0-21swapper/422:43:554
2182699160,15cyclictest0-21swapper/420:14:524
2181899167,8cyclictest1132-21snmpd22:30:333
2181899166,9cyclictest23659-21crond20:10:003
2181899164,9cyclictest1166-21runrttasks20:16:023
21818991611,4cyclictest0-21swapper/319:10:293
21818991610,5cyclictest17010-21crond23:50:003
2181899160,1cyclictest0-21swapper/320:47:083
21813991614,1cyclictest31183-21latency_hist19:25:002
21809991611,4cyclictest0-21swapper/121:19:371
21809991611,4cyclictest0-21swapper/121:19:371
2180999160,4cyclictest0-21swapper/123:00:431
2180999160,2cyclictest0-21swapper/120:30:051
2180999160,10cyclictest0-21swapper/119:40:001
21804991610,5cyclictest0-21swapper/023:04:430
21804991610,5cyclictest0-21swapper/019:16:240
2180499161,4cyclictest0-21swapper/023:07:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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