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2025-07-01 - 04:25

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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Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 100 highest latencies:
System rack3slot5s.osadl.org (updated Tue Jul 01, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1178221350sleep02288650irq/29-eth0_g0_22:25:530
156402800sleep12288650irq/29-eth0_g0_22:42:561
226242700sleep02288650irq/29-eth0_g0_23:08:350
121620ksoftirqd/12288650irq/29-eth0_g0_22:18:341
33572610sleep12288750irq/30-eth0_g0_00:07:541
121600ksoftirqd/12288650irq/29-eth0_g0_21:08:301
289932590sleep12288650irq/29-eth0_g0_19:13:081
121530ksoftirqd/12288650irq/29-eth0_g0_21:58:221
121500ksoftirqd/12288750irq/30-eth0_g0_21:27:400
121500ksoftirqd/12288750irq/30-eth0_g0_19:48:281
121500ksoftirqd/12288650irq/29-eth0_g0_21:18:121
121490ksoftirqd/12288650irq/29-eth0_g0_23:01:351
121490ksoftirqd/12288650irq/29-eth0_g0_23:01:351
121480ksoftirqd/12288750irq/30-eth0_g0_21:38:291
121480ksoftirqd/12288750irq/30-eth0_g0_21:37:221
91852470sleep12288750irq/30-eth0_g0_22:14:111
121470ksoftirqd/12288750irq/30-eth0_g0_21:48:300
121470ksoftirqd/12288650irq/29-eth0_g0_23:48:311
121460ksoftirqd/12288750irq/30-eth0_g0_22:43:141
121460ksoftirqd/12288750irq/30-eth0_g0_21:45:210
121460ksoftirqd/12288750irq/30-eth0_g0_00:27:201
2288650450irq/29-eth0_g0_470-21kworker/1:123:20:121
2288650450irq/29-eth0_g0_470-21kworker/1:121:28:431
121450ksoftirqd/12288650irq/29-eth0_g0_22:56:271
121450ksoftirqd/12288650irq/29-eth0_g0_21:46:011
2288650440irq/29-eth0_g0_470-21kworker/1:122:06:261
217762440chrt2288650irq/29-eth0_g0_23:07:580
217762440chrt2288650irq/29-eth0_g0_23:07:580
121440ksoftirqd/12288750irq/30-eth0_g0_22:52:380
121440ksoftirqd/12288750irq/30-eth0_g0_22:52:380
121440ksoftirqd/12288650irq/29-eth0_g0_21:13:231
121440ksoftirqd/12288650irq/29-eth0_g0_19:38:271
2288750430irq/30-eth0_g0_31ksoftirqd/021:23:020
2288650430irq/29-eth0_g0_121ksoftirqd/123:23:251
2288650430irq/29-eth0_g0_121ksoftirqd/100:15:221
2288650430irq/29-eth0_g0_104732sleep100:35:051
121430ksoftirqd/12288750irq/30-eth0_g0_00:16:420
121430ksoftirqd/12288650irq/29-eth0_g0_20:38:291
121430ksoftirqd/12288650irq/29-eth0_g0_19:23:211
2288750420irq/30-eth0_g0_22885-21kworker/0:222:54:230
2288750410irq/30-eth0_g0_31ksoftirqd/023:55:580
2288750410irq/30-eth0_g0_22885-21kworker/0:222:10:320
2288750410irq/30-eth0_g0_22885-21kworker/0:222:04:300
2288750410irq/30-eth0_g0_121ksoftirqd/122:14:010
2288650410irq/29-eth0_g0_470-21kworker/1:123:53:281
121410ksoftirqd/12288750irq/30-eth0_g0_23:08:561
121410ksoftirqd/12288650irq/29-eth0_g0_22:36:311
121410ksoftirqd/12288650irq/29-eth0_g0_19:31:221
276872400sleep12288650irq/29-eth0_g0_23:30:211
2288750400irq/30-eth0_g0_31647-21df_abs19:23:210
2288750400irq/30-eth0_g0_31ksoftirqd/023:41:510
2288750400irq/30-eth0_g0_31ksoftirqd/023:31:020
2288750400irq/30-eth0_g0_22885-21kworker/0:223:52:510
2288750400irq/30-eth0_g0_22885-21kworker/0:223:34:560
2288750400irq/30-eth0_g0_22885-21kworker/0:223:01:500
2288750400irq/30-eth0_g0_22885-21kworker/0:223:01:500
2288750400irq/30-eth0_g0_22885-21kworker/0:200:29:280
2288750400irq/30-eth0_g0_22885-21kworker/0:200:09:090
2288750400irq/30-eth0_g0_0-21swapper/023:23:390
121400ksoftirqd/12288750irq/30-eth0_g0_23:44:401
121400ksoftirqd/12288650irq/29-eth0_g0_23:13:291
121400ksoftirqd/12288650irq/29-eth0_g0_21:08:270
121400ksoftirqd/12288650irq/29-eth0_g0_21:03:581
2288750390irq/30-eth0_g0_31219-21taskset23:43:350
2288750390irq/30-eth0_g0_22885-21kworker/0:222:44:300
2288750390irq/30-eth0_g0_22885-21kworker/0:222:31:010
2288750390irq/30-eth0_g0_22885-21kworker/0:222:19:190
2288750390irq/30-eth0_g0_22885-21kworker/0:222:01:590
2288750390irq/30-eth0_g0_22885-21kworker/0:221:17:370
2288750390irq/30-eth0_g0_22885-21kworker/0:200:18:150
2288650390irq/29-eth0_g0_470-21kworker/1:123:58:231
2288650390irq/29-eth0_g0_470-21kworker/1:122:08:291
2288650390irq/29-eth0_g0_470-21kworker/1:100:32:461
2288650390irq/29-eth0_g0_2021-21runrttasks19:04:311
2288650390irq/29-eth0_g0_121ksoftirqd/123:37:161
2288650390irq/29-eth0_g0_121ksoftirqd/122:30:001
121390ksoftirqd/12288750irq/30-eth0_g0_23:16:000
121390ksoftirqd/12288650irq/29-eth0_g0_22:24:511
121390ksoftirqd/12288650irq/29-eth0_g0_20:23:241
121390ksoftirqd/12288650irq/29-eth0_g0_20:14:021
121390ksoftirqd/12288650irq/29-eth0_g0_19:59:541
121390ksoftirqd/12288650irq/29-eth0_g0_19:36:571
121390ksoftirqd/12288650irq/29-eth0_g0_19:19:371
121390ksoftirqd/12288650irq/29-eth0_g0_00:21:381
2288750380irq/30-eth0_g0_31ksoftirqd/021:31:310
2288750380irq/30-eth0_g0_22885-21kworker/0:223:19:210
2288750380irq/30-eth0_g0_22885-21kworker/0:222:34:380
2288750380irq/30-eth0_g0_22885-21kworker/0:221:54:410
2288750380irq/30-eth0_g0_22885-21kworker/0:221:39:420
2288750380irq/30-eth0_g0_121ksoftirqd/120:48:241
2288650380irq/29-eth0_g0_470-21kworker/1:123:03:521
2288650380irq/29-eth0_g0_470-21kworker/1:123:03:521
2288650380irq/29-eth0_g0_470-21kworker/1:121:23:171
2288650380irq/29-eth0_g0_16272-21/usr/sbin/munin20:33:231
2288650380irq/29-eth0_g0_121ksoftirqd/123:38:301
121380ksoftirqd/12288750irq/30-eth0_g0_20:44:250
121380ksoftirqd/12288650irq/29-eth0_g0_21:00:281
2288750370irq/30-eth0_g0_31ksoftirqd/021:36:160
2288750370irq/30-eth0_g0_31ksoftirqd/000:04:110
2288750370irq/30-eth0_g0_28392-21/usr/sbin/munin19:08:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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