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2021-11-28 - 00:31

Intel(R) Atom(TM) CPU E3845 @ 1.91GHz, 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 Nov 27, 2021 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
91191930,34ptp4l401ktimersoftd/307:36:123
91191740,1ptp4l401ktimersoftd/311:44:053
91191740,1ptp4l401ktimersoftd/311:44:053
91191710,9ptp4l401ktimersoftd/311:54:403
123672700,4sleep1231rcuc/112:25:051
91191690,10ptp4l401ktimersoftd/310:43:423
164592694,9sleep00-21swapper/007:35:120
91191680,1ptp4l401ktimersoftd/310:06:473
192712660,2sleep20-21swapper/211:59:562
91191550,1ptp4l401ktimersoftd/310:03:593
251872540,1sleep10-21swapper/112:38:381
147142540,2sleep10-21swapper/110:49:441
91191510,1ptp4l401ktimersoftd/312:33:293
324112510,3sleep3391rcuc/308:10:023
91191420,1ptp4l401ktimersoftd/309:08:043
1647624218,12sleep233-21ksoftirqd/207:35:262
91191410,1ptp4l401ktimersoftd/312:02:013
91191410,1ptp4l401ktimersoftd/310:18:593
91191400,1ptp4l401ktimersoftd/310:38:523
91191400,1ptp4l401ktimersoftd/309:49:543
91191390,1ptp4l401ktimersoftd/312:56:273
91191390,1ptp4l401ktimersoftd/312:28:143
91191390,1ptp4l401ktimersoftd/311:05:583
91191390,1ptp4l401ktimersoftd/311:01:463
91191390,1ptp4l401ktimersoftd/310:30:343
91191390,1ptp4l401ktimersoftd/310:25:413
91191390,1ptp4l401ktimersoftd/310:25:413
91191390,1ptp4l401ktimersoftd/309:44:473
91191390,0ptp4l401ktimersoftd/311:25:273
91191380,1ptp4l401ktimersoftd/313:03:483
91191380,1ptp4l401ktimersoftd/312:49:563
91191380,1ptp4l401ktimersoftd/312:48:213
91191380,1ptp4l401ktimersoftd/312:43:363
91191380,1ptp4l401ktimersoftd/311:48:313
91191380,1ptp4l401ktimersoftd/311:48:313
91191380,1ptp4l401ktimersoftd/311:32:423
91191380,1ptp4l401ktimersoftd/311:18:193
91191380,1ptp4l401ktimersoftd/311:10:063
91191380,1ptp4l401ktimersoftd/310:49:503
91191380,1ptp4l401ktimersoftd/309:44:283
91191380,1ptp4l401ktimersoftd/307:57:343
59012380,3sleep00-21swapper/010:40:030
91191370,1ptp4l401ktimersoftd/310:59:253
91191370,1ptp4l401ktimersoftd/310:47:143
91191360,1ptp4l401ktimersoftd/311:20:053
91191360,1ptp4l401ktimersoftd/310:23:513
91191360,1ptp4l401ktimersoftd/310:23:513
91191360,0ptp4l401ktimersoftd/312:17:093
91191350,2ptp4l28093-21kworker/3:213:07:273
91191350,2ptp4l14425-21kworker/3:209:16:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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