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2022-05-28 - 15:54

ARM Broadcom BCM2711 @1500 MHz, Linux 5.10.52-rt47-v7l (Profile)

Latency plot of system in rack #4, 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 rack4slot1.osadl.org (updated Sat May 28, 2022 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1743321050,2sleep20-21swapper/207:25:212
123962900,4sleep20-21swapper/211:36:132
123962900,4sleep20-21swapper/211:36:132
164282880,2sleep10-21swapper/109:23:341
164282880,2sleep10-21swapper/109:23:341
72572760,3sleep10-21swapper/109:56:371
72572760,3sleep10-21swapper/109:56:371
22612750,4sleep10-21swapper/112:08:101
22612750,4sleep10-21swapper/112:08:101
210952730,2sleep20-21swapper/211:02:212
210952730,2sleep20-21swapper/211:02:212
218542720,2sleep30-21swapper/310:17:253
218542720,2sleep30-21swapper/310:17:253
72532670,2sleep17290-21cat12:15:191
72532670,2sleep17290-21cat12:15:191
211132590,4sleep20-21swapper/212:35:122
211132590,4sleep20-21swapper/212:35:122
209842580,2chrt0-21swapper/207:35:182
78932570,3chrt0-21swapper/209:57:352
78932570,3chrt0-21swapper/209:57:352
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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