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2022-08-20 - 03:32

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 100, highest latencies:
System rack4slot1.osadl.org (updated Fri Aug 19, 2022 19:30:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
297572860,4sleep229756-21tune2fs19:12:032
297572860,4sleep229756-21tune2fs19:12:032
10502550,3sleep30-21swapper/319:22:093
10502550,3sleep30-21swapper/319:22:093
293312520,3sleep029272-21ls19:11:500
322112410,3sleep20-21swapper/219:17:102
321212390,2sleep032160-21ntp_states19:17:090
311422350,1sleep131143-21sshd19:15:571
311422350,1sleep131143-21sshd19:15:571
8332310,2sleep30-21swapper/319:21:493
291832316,19sleep10-21swapper/119:11:021
289522316,19sleep20-21swapper/219:08:212
278472319,14sleep30-21swapper/319:07:053
2950799277,3cyclictest21-21ksoftirqd/119:17:001
2950899251,6cyclictest2044-21find19:22:232
2950899251,6cyclictest2044-21find19:22:232
29500992310,6cyclictest12-21ksoftirqd/019:22:230
29500992310,6cyclictest12-21ksoftirqd/019:22:230
2950799226,7cyclictest21-21ksoftirqd/119:22:231
2950799226,7cyclictest21-21ksoftirqd/119:22:231
2950799217,6cyclictest3904-21xargs19:27:151
2950799217,6cyclictest3904-21xargs19:27:151
2950899201,17cyclictest3903-21find19:27:152
2950899201,17cyclictest3903-21find19:27:152
2950099201,3cyclictest131rcu_preempt19:12:080
2950099201,3cyclictest131rcu_preempt19:12:080
2950099183,4cyclictest3749-21grep19:27:120
2950099183,4cyclictest3749-21grep19:27:120
2950999164,7cyclictest0-21swapper/319:27:013
2950999164,7cyclictest0-21swapper/319:27:013
2950999153,9cyclictest295652sleep319:12:013
2950999153,9cyclictest295652sleep319:12:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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