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2024-12-01 - 22:27

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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  Eltec
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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 20 highest latencies:
System rack3slot5s.osadl.org (updated Sun Dec 01, 2024 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2109821590sleep1121650irq/29-eth0_g0_10:20:151
2636721350sleep0121650irq/29-eth0_g0_10:44:480
1988421290sleep1121650irq/29-eth0_g0_10:15:221
612121120sleep1121650irq/29-eth0_g0_09:17:351
82442780sleep0121750irq/30-eth0_g0_11:40:220
121730ksoftirqd/1121750irq/30-eth0_g0_09:35:101
142892710sleep1121750irq/30-eth0_g0_09:50:171
121690ksoftirqd/1121750irq/30-eth0_g0_09:20:051
121620ksoftirqd/1121650irq/29-eth0_g0_11:25:091
72592590sleep1121650irq/29-eth0_g0_11:38:091
218192580sleep1121750irq/30-eth0_g0_10:25:021
48652560sleep0121650irq/29-eth0_g0_09:12:120
50422540sleep0121750irq/30-eth0_g0_11:29:560
50422540sleep0121750irq/30-eth0_g0_11:29:560
44862520sleep1121750irq/30-eth0_g0_09:10:121
311312520sleep0121650irq/29-eth0_g0_11:03:200
121520ksoftirqd/1121750irq/30-eth0_g0_11:03:301
322922510sleep1121650irq/29-eth0_g0_11:07:361
196182490sleep0121750irq/30-eth0_g0_12:29:350
169912490sleep0121750irq/30-eth0_g0_10:00:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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