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2023-05-28 - 17:56

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 10 highest latencies:
System rack4slot1.osadl.org (updated Sun May 28, 2023 12:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2492521660,2sleep00-21swapper/009:47:440
2492521660,2sleep00-21swapper/009:47:440
645021240,2chrt5641-21/usr/sbin/munin08:26:141
645021240,2chrt5641-21/usr/sbin/munin08:26:141
856021020,3sleep2261rcuc/211:13:112
856021020,3sleep2261rcuc/211:13:112
593421020,3sleep30-21swapper/310:36:103
593421020,3sleep30-21swapper/310:36:103
1943621020,3sleep20-21swapper/210:51:002
1943621020,3sleep20-21swapper/210:51:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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