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2021-09-28 - 08:50

Intel(R) Xeon(R) CPU E3-1270 V2 @ 3.50GHz, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #0, slot #1
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 20 highest latencies:
System rack0slot1.osadl.org (updated Tue Sep 28, 2021 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190727959,6sleep70-21swapper/719:02:007
466527569,3sleep00-21swapper/019:04:010
9622710,1sleep50-21swapper/522:25:455
47422700,0sleep60-21swapper/623:20:496
168412700,1sleep33870-21runrttasks21:51:463
45182690,0sleep30-21swapper/321:06:123
94952650,0sleep50-21swapper/520:34:495
3184626558,2sleep30-21swapper/319:00:523
137032650,0sleep50-21swapper/519:43:225
309226458,3sleep40-21swapper/419:02:454
126432600,0sleep40-21swapper/419:42:494
489225550,2sleep50-21swapper/519:04:065
424825448,3sleep10-21swapper/119:03:221
7009995048,1cyclictest9-21ksoftirqd/023:12:080
269362500,0sleep10-21swapper/121:42:391
65322490,1sleep014502-21qtp538777354-6022:54:550
7011994442,1cyclictest34-21ksoftirqd/221:27:112
297252430,0sleep30-21swapper/320:27:183
267923624,7sleep20-21swapper/219:02:192
7014993532,2cyclictest61-21ksoftirqd/500:15:185
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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