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2024-07-27 - 08:04
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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 rackcslot4.osadl.org (updated Sat Jul 27, 2024 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12745502261183,28sleep00-21swapper/019:06:080
12746422240197,29sleep10-21swapper/119:07:071
14339192670,4sleep10-21swapper/123:40:011
159199540,3rtkit-daemon1590-21rtkit-daemon19:38:030
159199530,4rtkit-daemon1590-21rtkit-daemon21:06:051
13175182530,3sleep01317511-21sort20:55:130
127504199533,9cyclictest1323737-21apt-get21:10:110
159199520,4rtkit-daemon1590-21rtkit-daemon22:10:130
14139542520,4sleep00-21swapper/023:11:140
14069222520,5sleep00-21swapper/023:01:280
159199490,4rtkit-daemon1590-21rtkit-daemon23:09:200
159199460,4rtkit-daemon1590-21rtkit-daemon22:57:171
159199420,4rtkit-daemon1590-21rtkit-daemon20:36:131
127504199412,14cyclictest1338940-21apt-get21:30:170
159199400,3rtkit-daemon0-21swapper/120:13:491
159199390,6rtkit-daemon1422501-21ssh23:24:131
159199390,4rtkit-daemon1371623-21http22:15:460
14693392390,2sleep11469314-21apt-get00:30:121
159199380,3rtkit-daemon1590-21rtkit-daemon20:02:071
159199370,5rtkit-daemon1590-21rtkit-daemon22:00:110
159199370,4rtkit-daemon0-21swapper/121:43:300
159199370,4rtkit-daemon0-21swapper/121:15:351
159199370,3rtkit-daemon1590-21rtkit-daemon23:41:210
159199370,3rtkit-daemon0-21swapper/121:50:031
14393152370,1sleep10-21swapper/123:46:181
14393152370,1sleep10-21swapper/123:46:171
159199360,4rtkit-daemon1590-21rtkit-daemon22:20:101
159199360,3rtkit-daemon0-21swapper/119:55:070
13349402360,4sleep00-21swapper/021:24:250
159199350,3rtkit-daemon0-21swapper/121:41:281
159199350,3rtkit-daemon0-21swapper/000:05:181
159199340,4rtkit-daemon1590-21rtkit-daemon23:54:441
159199340,4rtkit-daemon1590-21rtkit-daemon22:36:351
159199340,4rtkit-daemon1590-21rtkit-daemon00:11:281
159199340,3rtkit-daemon0-21swapper/120:36:420
159199340,3rtkit-daemon0-21swapper/120:27:341
127504199342,8cyclictest1461876-21apt-get00:20:100
159199330,4rtkit-daemon1590-21rtkit-daemon23:46:170
159199330,4rtkit-daemon1590-21rtkit-daemon23:46:160
159199330,4rtkit-daemon1590-21rtkit-daemon22:08:301
159199330,3rtkit-daemon1590-21rtkit-daemon21:57:281
159199330,3rtkit-daemon0-21swapper/122:04:191
159199330,3rtkit-daemon0-21swapper/119:51:091
159199330,3rtkit-daemon0-21swapper/100:28:160
159199320,4rtkit-daemon1590-21rtkit-daemon23:16:010
159199320,4rtkit-daemon1590-21rtkit-daemon20:45:010
159199320,3rtkit-daemon1590-21rtkit-daemon23:06:431
159199320,3rtkit-daemon1590-21rtkit-daemon00:21:491
159199320,3rtkit-daemon0-21swapper/121:58:110
159199320,3rtkit-daemon0-21swapper/121:53:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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