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2022-05-26 - 18:54

x86 Intel Xeon E3-1220L V2 @2300 MHz, 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 Thu May 26, 2022 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
617421440,4sleep70-21swapper/707:00:207
1973321180,0sleep00-21swapper/011:41:540
87922800,2sleep38790-21check_snmp11:37:253
242772770,0sleep40-21swapper/407:47:434
307172720,3sleep51119099cyclictest10:38:555
276352710,0sleep20-21swapper/211:31:312
276352710,0sleep20-21swapper/211:31:312
290892690,0sleep40-21swapper/409:03:454
214732670,0sleep10-21swapper/109:14:001
188692660,1sleep28408-21QueuingRrdStrat12:08:482
150762650,0sleep50-21swapper/510:32:225
215912630,0sleep00-21swapper/010:08:220
65122600,2sleep21118799cyclictest09:21:062
283702590,0sleep40-21swapper/411:18:434
289272570,0sleep50-21swapper/511:04:355
106982570,6sleep0182050irq/25-eth010:03:410
194242560,0sleep10-21swapper/111:01:021
270792530,0sleep20-21swapper/208:43:572
565725023,8sleep30-21swapper/306:59:373
285282440,0sleep30-21swapper/310:24:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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