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2023-06-11 - 02:24

x86 Intel Atom E3845 @1915 MHz, Linux 4.19.37-rt20 (Profile)

Latency plot of system in rack #b, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rackbslot6.osadl.org (updated Sat Jun 10, 2023 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1522911570,5ptp4l391rcuc/307:59:223
152291840,2ptp4l391rcuc/312:33:483
152291830,2ptp4l391rcuc/311:53:383
152291830,2ptp4l391rcuc/308:38:243
152291830,1ptp4l391rcuc/311:38:353
152291810,1ptp4l391rcuc/311:08:283
152291800,2ptp4l391rcuc/312:18:433
152291800,2ptp4l391rcuc/311:03:023
152291800,1ptp4l391rcuc/308:27:593
152291790,2ptp4l391rcuc/308:18:243
152291790,1ptp4l391rcuc/313:18:323
152291790,1ptp4l391rcuc/310:18:503
152291790,1ptp4l391rcuc/310:08:493
152291780,1ptp4l391rcuc/312:10:363
152291780,1ptp4l391rcuc/312:04:283
152291780,1ptp4l391rcuc/311:43:283
152291780,1ptp4l391rcuc/311:33:303
152291780,1ptp4l391rcuc/310:38:303
152291770,2ptp4l391rcuc/310:48:413
152291770,1ptp4l391rcuc/313:29:093
152291770,1ptp4l391rcuc/309:58:423
152291760,2ptp4l391rcuc/313:12:083
152291760,2ptp4l391rcuc/312:28:433
152291760,1ptp4l391rcuc/312:38:473
152291760,1ptp4l391rcuc/312:38:473
152291760,1ptp4l391rcuc/312:23:353
152291760,1ptp4l391rcuc/310:43:493
152291760,1ptp4l391rcuc/310:23:253
152291760,1ptp4l391rcuc/310:13:553
152291760,1ptp4l391rcuc/308:33:223
152291750,1ptp4l391rcuc/313:23:333
152291750,1ptp4l391rcuc/311:48:343
152291750,1ptp4l391rcuc/311:26:263
152291750,1ptp4l391rcuc/311:04:113
152291750,1ptp4l391rcuc/309:53:253
152291750,1ptp4l391rcuc/309:48:293
152291750,1ptp4l391rcuc/309:43:363
152291740,2ptp4l391rcuc/313:03:473
152291740,2ptp4l391rcuc/312:43:363
152291740,1ptp4l391rcuc/313:15:503
152291740,1ptp4l391rcuc/312:16:583
152291740,1ptp4l391rcuc/311:58:373
152291740,1ptp4l391rcuc/311:28:463
152291740,1ptp4l391rcuc/311:16:233
152291740,1ptp4l391rcuc/310:31:263
152291740,1ptp4l391rcuc/309:38:393
152291740,1ptp4l391rcuc/308:43:323
152291740,1ptp4l391rcuc/308:13:293
152291740,1ptp4l391rcuc/308:03:313
152291730,4ptp4l391rcuc/310:33:503
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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