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2023-06-05 - 03:03

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 20 highest latencies:
System rack3slot5s.osadl.org (updated Thu Apr 20, 2023 00:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121740ksoftirqd/1752350irq/30-eth0_g0_23:53:061
142982670sleep0752250irq/29-eth0_g0_22:43:070
250532590sleep0752350irq/30-eth0_g0_00:28:530
128142520sleep1752350irq/30-eth0_g0_22:28:351
121500ksoftirqd/1752350irq/30-eth0_g0_21:14:121
121490ksoftirqd/1752250irq/29-eth0_g0_22:57:411
121480ksoftirqd/1752250irq/29-eth0_g0_21:44:311
121470ksoftirqd/1752250irq/29-eth0_g0_22:41:281
121450ksoftirqd/1752250irq/29-eth0_g0_23:29:001
121450ksoftirqd/1752250irq/29-eth0_g0_23:29:001
121450ksoftirqd/1752250irq/29-eth0_g0_22:07:311
121450ksoftirqd/1752250irq/29-eth0_g0_22:07:311
752250440irq/29-eth0_g0_470-21kworker/1:122:55:511
752350430irq/30-eth0_g0_13-21kworker/0:123:10:200
752350430irq/30-eth0_g0_13-21kworker/0:123:10:200
752250430irq/29-eth0_g0_249252sleep100:27:271
121430ksoftirqd/1752350irq/30-eth0_g0_22:19:051
121430ksoftirqd/1752350irq/30-eth0_g0_21:33:511
121430ksoftirqd/1752250irq/29-eth0_g0_23:48:201
117450430irq/72-mmc00-21swapper/121:24:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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