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2023-06-09 - 00:02

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 Thu Jun 08, 2023 12:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
639321320,3sleep30-21swapper/308:40:323
639321320,3sleep30-21swapper/308:40:323
1749421160,3chrt0-21swapper/010:19:110
1749421160,3chrt0-21swapper/010:19:110
145632920,2sleep00-21swapper/007:35:270
145632920,2sleep00-21swapper/007:35:270
5020997731,35cyclictest45750irq/56-eth010:20:200
5020997731,35cyclictest45750irq/56-eth010:20:200
217252740,2sleep30-21swapper/307:55:113
156372680,2sleep20-21swapper/212:32:232
156372680,2sleep20-21swapper/212:32:232
62632670,3sleep00-21swapper/008:40:290
62632670,3sleep00-21swapper/008:40:290
265742670,4sleep30-21swapper/308:05:563
265742670,4sleep30-21swapper/308:05:563
45922640,1sleep1131rcu_preempt11:13:171
45922640,1sleep1131rcu_preempt11:13:171
306752640,3chrt0-21swapper/308:19:143
5021996226,28cyclictest131rcu_preempt07:40:181
5021996226,28cyclictest131rcu_preempt07:40:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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