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2024-11-25 - 14:49

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 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 Mon Nov 25, 2024 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
793721470sleep0121550irq/29-eth0_g0_10:41:170
1062121150sleep0121550irq/29-eth0_g0_10:54:010
90032820chrt121650irq/30-eth0_g0_10:45:071
119092790sleep0121550irq/29-eth0_g0_10:59:440
189142770sleep0121550irq/29-eth0_g0_11:25:430
6762750sleep0121650irq/30-eth0_g0_12:25:000
207062690sleep1121650irq/30-eth0_g0_11:34:571
142112690sleep0121550irq/29-eth0_g0_11:08:000
179702640sleep1121550irq/29-eth0_g0_11:24:031
121610ksoftirqd/1121650irq/30-eth0_g0_10:37:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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