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2025-02-09 - 09:45

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 50 highest latencies:
System rack3slot5s.osadl.org (updated Sun Feb 09, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
925121680sleep1121650irq/29-eth0_g0_23:31:081
925121680sleep1121650irq/29-eth0_g0_23:31:081
658721500sleep1121750irq/30-eth0_g0_23:19:301
2205621480sleep1121650irq/29-eth0_g0_00:34:191
808221360sleep1121650irq/29-eth0_g0_23:26:451
808221360sleep1121650irq/29-eth0_g0_23:26:451
2004721270sleep1121650irq/29-eth0_g0_00:21:031
1364321130sleep0121750irq/30-eth0_g0_23:53:380
320772850sleep0121650irq/29-eth0_g0_22:45:520
151452810sleep0121650irq/29-eth0_g0_21:24:060
51482650sleep0121650irq/29-eth0_g0_23:11:590
205612650chrt121650irq/29-eth0_g0_00:26:091
155792640sleep0121650irq/29-eth0_g0_21:28:160
301662630sleep0121650irq/29-eth0_g0_22:35:200
121550ksoftirqd/1121750irq/30-eth0_g0_00:17:171
292952540sleep0121750irq/30-eth0_g0_22:32:490
121520ksoftirqd/1121750irq/30-eth0_g0_23:59:401
82582510sleep0121650irq/29-eth0_g0_23:28:480
82582510sleep0121650irq/29-eth0_g0_23:28:480
121500ksoftirqd/1121650irq/29-eth0_g0_22:32:251
264512490sleep1121650irq/29-eth0_g0_22:19:031
121490ksoftirqd/1121750irq/30-eth0_g0_21:43:121
38132480sleep0121650irq/29-eth0_g0_23:05:410
121480ksoftirqd/1121750irq/30-eth0_g0_23:03:161
121480ksoftirqd/1121750irq/30-eth0_g0_21:49:151
121470ksoftirqd/1121650irq/29-eth0_g0_21:20:281
121460ksoftirqd/1121650irq/29-eth0_g0_22:35:421
121460ksoftirqd/1121650irq/29-eth0_g0_20:25:081
121460ksoftirqd/1121650irq/29-eth0_g0_19:57:001
121450ksoftirqd/1121750irq/30-eth0_g0_23:06:341
121450ksoftirqd/1121750irq/30-eth0_g0_21:26:411
121450ksoftirqd/1121650irq/29-eth0_g0_22:29:530
121650440irq/29-eth0_g0_14110-21unixbench_multi19:05:190
121440ksoftirqd/1121650irq/29-eth0_g0_22:54:491
121440ksoftirqd/1121650irq/29-eth0_g0_19:21:161
121750430irq/30-eth0_g0_1219-21kworker/1:221:38:391
121650430irq/29-eth0_g0_2010-21runrttasks23:42:140
121650430irq/29-eth0_g0_0-21swapper/022:57:420
121430ksoftirqd/1121750irq/30-eth0_g0_23:12:131
121430ksoftirqd/1121750irq/30-eth0_g0_21:55:400
121430ksoftirqd/1121750irq/30-eth0_g0_21:51:500
264562420sleep0121650irq/29-eth0_g0_22:19:070
151462420sleep0121650irq/29-eth0_g0_00:00:110
121750420irq/30-eth0_g0_1219-21kworker/1:223:40:191
121650420irq/29-eth0_g0_2010-21runrttasks22:20:100
121650420irq/29-eth0_g0_121ksoftirqd/123:58:500
121650420irq/29-eth0_g0_121ksoftirqd/121:15:470
317582410sleep0121750irq/30-eth0_g0_22:43:030
200112410sleep0121650irq/29-eth0_g0_00:20:370
1459799419cyclictest121750irq/30-eth0_g0_22:45:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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