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2026-05-08 - 10:43

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 highest latencies:
System rack3slot5s.osadl.org (updated Fri May 08, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2292821430sleep1121450irq/29-eth0_g0_21:31:561
937121090sleep0121550irq/30-eth0_g0_19:19:100
121600ksoftirqd/1121450irq/29-eth0_g0_00:16:541
121590ksoftirqd/1121550irq/30-eth0_g0_21:43:441
281282570sleep0121550irq/30-eth0_g0_22:23:270
121560ksoftirqd/1121450irq/29-eth0_g0_23:25:231
121550ksoftirqd/186622chrt00:30:190
121550ksoftirqd/1121450irq/29-eth0_g0_00:00:350
121520ksoftirqd/1121550irq/30-eth0_g0_22:42:031
121520ksoftirqd/1121550irq/30-eth0_g0_21:27:331
121510ksoftirqd/1121550irq/30-eth0_g0_23:33:291
121510ksoftirqd/1121550irq/30-eth0_g0_22:06:031
121510ksoftirqd/1121450irq/29-eth0_g0_23:09:040
121500ksoftirqd/1121550irq/30-eth0_g0_23:22:251
121500ksoftirqd/1121550irq/30-eth0_g0_21:47:401
121500ksoftirqd/1121550irq/30-eth0_g0_21:14:441
121500ksoftirqd/1121450irq/29-eth0_g0_22:00:461
121490ksoftirqd/1121550irq/30-eth0_g0_21:57:300
121490ksoftirqd/1121550irq/30-eth0_g0_00:36:271
121490ksoftirqd/1121550irq/30-eth0_g0_00:07:221
121490ksoftirqd/1121550irq/30-eth0_g0_00:07:221
121480ksoftirqd/1121550irq/30-eth0_g0_21:35:260
121470ksoftirqd/1121550irq/30-eth0_g0_21:55:001
121450450irq/29-eth0_g0_31ksoftirqd/023:36:530
121450ksoftirqd/1121550irq/30-eth0_g0_22:48:161
247602440sleep0121550irq/30-eth0_g0_21:49:390
121550440irq/30-eth0_g0_1221-21kworker/1:222:56:361
121550440irq/30-eth0_g0_1221-21kworker/1:200:24:371
121450440irq/29-eth0_g0_31ksoftirqd/022:00:340
121440ksoftirqd/1121550irq/30-eth0_g0_23:05:381
121440ksoftirqd/1121550irq/30-eth0_g0_22:50:341
121440ksoftirqd/1121550irq/30-eth0_g0_21:50:341
121440ksoftirqd/1121450irq/29-eth0_g0_00:37:560
8350994311cyclictest19123-21seq20:54:101
121450430irq/29-eth0_g0_13-21kworker/0:123:19:190
121430ksoftirqd/1121550irq/30-eth0_g0_23:12:171
121430ksoftirqd/1121450irq/29-eth0_g0_22:17:131
121430ksoftirqd/1121450irq/29-eth0_g0_22:09:360
121550420irq/30-eth0_g0_1221-21kworker/1:222:31:441
121450420irq/29-eth0_g0_307162sleep022:49:090
121450420irq/29-eth0_g0_31ksoftirqd/022:14:190
121450420irq/29-eth0_g0_31ksoftirqd/000:12:300
121450420irq/29-eth0_g0_13-21kworker/0:122:38:530
121450420irq/29-eth0_g0_13-21kworker/0:121:10:020
121420ksoftirqd/1121550irq/30-eth0_g0_23:30:440
87692410sleep1121450irq/29-eth0_g0_00:31:341
121550410irq/30-eth0_g0_121ksoftirqd/100:04:540
121550410irq/30-eth0_g0_121ksoftirqd/100:04:540
121450410irq/29-eth0_g0_7495-21latency_hist00:19:090
121450410irq/29-eth0_g0_1911-21runrttasks19:04:180
121450410irq/29-eth0_g0_13-21kworker/0:123:50:310
121450410irq/29-eth0_g0_13-21kworker/0:122:04:120
121450410irq/29-eth0_g0_13-21kworker/0:121:44:430
121450410irq/29-eth0_g0_13-21kworker/0:121:26:350
835099402cyclictest10388-21munin-run19:29:101
121550400irq/30-eth0_g0_31ksoftirqd/021:17:010
121550400irq/30-eth0_g0_1221-21kworker/1:223:40:391
121550400irq/30-eth0_g0_1221-21kworker/1:222:12:041
121450400irq/29-eth0_g0_4044-21seq23:44:560
121400ksoftirqd/1121550irq/30-eth0_g0_23:54:510
121400ksoftirqd/1121550irq/30-eth0_g0_22:52:540
835099391cyclictest20581-21diskmemload22:24:101
835099391cyclictest0-21swapper/119:52:191
121550390irq/30-eth0_g0_1221-21kworker/1:223:47:511
121550390irq/30-eth0_g0_1221-21kworker/1:200:22:561
121450390irq/29-eth0_g0_1911-21runrttasks19:39:060
121450390irq/29-eth0_g0_13-21kworker/0:123:41:000
121450390irq/29-eth0_g0_13-21kworker/0:123:02:300
121450390irq/29-eth0_g0_13-21kworker/0:122:29:570
121450390irq/29-eth0_g0_13-21kworker/0:122:26:170
121450390irq/29-eth0_g0_13-21kworker/0:121:30:150
121450390irq/29-eth0_g0_121ksoftirqd/123:26:250
121550380irq/30-eth0_g0_121ksoftirqd/123:36:181
121450380irq/29-eth0_g0_24133-21munin-run21:44:090
121450380irq/29-eth0_g0_13-21kworker/0:123:13:210
121450380irq/29-eth0_g0_13-21kworker/0:121:20:140
121450380irq/29-eth0_g0_13-21kworker/0:100:26:190
121450380irq/29-eth0_g0_0-21swapper/023:16:060
835099371cyclictest1911-21runrttasks21:23:071
121550370irq/30-eth0_g0_1221-21kworker/1:221:37:401
121550370irq/30-eth0_g0_1221-21kworker/1:200:10:061
121550370irq/30-eth0_g0_12088-21sshd19:45:151
121550370irq/30-eth0_g0_121ksoftirqd/121:12:121
121550370irq/30-eth0_g0_0-21swapper/123:03:281
121450370irq/29-eth0_g0_1911-21runrttasks20:36:120
121450370irq/29-eth0_g0_121ksoftirqd/123:58:491
835099361cyclictest14012-21grep20:04:111
121550360irq/30-eth0_g0_1221-21kworker/1:223:49:321
121550360irq/30-eth0_g0_1221-21kworker/1:223:17:391
121550360irq/30-eth0_g0_121ksoftirqd/122:34:121
121450360irq/29-eth0_g0_1911-21runrttasks00:19:150
121450360irq/29-eth0_g0_13-21kworker/0:122:39:320
8350993531cyclictest0-21swapper/120:48:151
835099352cyclictest0-21swapper/120:07:161
835099351cyclictest9431-21latency_hist19:19:101
835099351cyclictest20579-21latency_hist21:09:091
835099351cyclictest0-21swapper/120:15:281
835099351cyclictest0-21swapper/120:15:281
835099351cyclictest0-21swapper/119:39:101
121550350irq/30-eth0_g0_1221-21kworker/1:222:24:341
121450350irq/29-eth0_g0_20635-21latency_hist21:09:100
121450350irq/29-eth0_g0_1911-21runrttasks20:24:020
121450350irq/29-eth0_g0_1911-21runrttasks20:24:020
121450350irq/29-eth0_g0_1911-21runrttasks19:59:310
121450350irq/29-eth0_g0_1911-21runrttasks19:33:180
121450350irq/29-eth0_g0_1911-21runrttasks19:09:560
121450350irq/29-eth0_g0_13-21kworker/0:122:57:050
121550340irq/30-eth0_g0_1221-21kworker/1:200:01:031
121450340irq/29-eth0_g0_834999cyclictest19:44:460
121450340irq/29-eth0_g0_7962-21runrttasks19:04:471
121450340irq/29-eth0_g0_1911-21runrttasks20:39:590
121450340irq/29-eth0_g0_1911-21runrttasks20:07:120
835099331cyclictest0-21swapper/119:54:281
835099330cyclictest0-21swapper/121:00:341
835099330cyclictest0-21swapper/120:40:301
835099330cyclictest0-21swapper/120:35:091
835099330cyclictest0-21swapper/120:33:411
835099330cyclictest0-21swapper/120:24:461
835099330cyclictest0-21swapper/120:21:211
835099330cyclictest0-21swapper/120:21:211
835099330cyclictest0-21swapper/120:12:061
835099330cyclictest0-21swapper/120:12:061
835099330cyclictest0-21swapper/119:39:541
835099330cyclictest0-21swapper/119:29:481
835099330cyclictest0-21swapper/119:23:231
835099330cyclictest0-21swapper/119:10:261
121450330irq/29-eth0_g0_9879-21munin-run19:24:100
121450330irq/29-eth0_g0_1911-21runrttasks21:00:520
121450330irq/29-eth0_g0_1911-21runrttasks20:47:130
121450330irq/29-eth0_g0_1911-21runrttasks20:29:270
121450330irq/29-eth0_g0_1911-21runrttasks20:26:240
121450330irq/29-eth0_g0_1911-21runrttasks19:55:070
121450330irq/29-eth0_g0_15269-21taskset20:16:420
121450330irq/29-eth0_g0_15269-21taskset20:16:420
835099320cyclictest0-21swapper/120:55:411
121450320irq/29-eth0_g0_1911-21runrttasks20:54:380
121450320irq/29-eth0_g0_1911-21runrttasks20:49:520
121450320irq/29-eth0_g0_1911-21runrttasks20:10:170
121450320irq/29-eth0_g0_1911-21runrttasks20:10:170
121450320irq/29-eth0_g0_1911-21runrttasks19:50:230
121450320irq/29-eth0_g0_1911-21runrttasks19:41:180
121450310irq/29-eth0_g0_1911-21runrttasks19:25:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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