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2022-07-06 - 09:35

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #5

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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  Eltec

PowerPC Freescale QorIQ-2020 @1200 MHz, Linux 3.2.34-rt51-babq2 (Profile)

Latency plot of shadow in rack #3, slot #5
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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack3slot5s.osadl.org (updated Wed Jul 06, 2022 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121650ksoftirqd/11488950irq/29-eth0_g0_21:13:320
1489050500irq/30-eth0_g0_14888-21kworker/1:023:50:541
1489050480irq/30-eth0_g0_14888-21kworker/1:000:22:071
1489050470irq/30-eth0_g0_121ksoftirqd/121:49:201
1489050470irq/30-eth0_g0_121ksoftirqd/121:49:201
121470ksoftirqd/12014299cyclictest23:19:201
121470ksoftirqd/11489050irq/30-eth0_g0_00:17:551
121460ksoftirqd/11489050irq/30-eth0_g0_23:47:521
121460ksoftirqd/11489050irq/30-eth0_g0_23:47:521
1489050450irq/30-eth0_g0_121ksoftirqd/123:59:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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