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2026-07-15 - 03:33

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 Wed Jul 15, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1041321290sleep0121650irq/29-eth0_g0_22:17:560
1041321290sleep0121650irq/29-eth0_g0_22:17:560
158521250chrt121650irq/29-eth0_g0_21:41:101
626521070sleep1121650irq/29-eth0_g0_21:58:221
121990ksoftirqd/1121750irq/30-eth0_g0_21:50:101
121990ksoftirqd/1121750irq/30-eth0_g0_21:50:101
121830ksoftirqd/1121650irq/29-eth0_g0_21:14:050
121800ksoftirqd/1121750irq/30-eth0_g0_22:08:111
274102570sleep0121650irq/29-eth0_g0_23:27:070
121530ksoftirqd/1121750irq/30-eth0_g0_19:18:371
121480ksoftirqd/1121750irq/30-eth0_g0_23:08:441
121470ksoftirqd/1121750irq/30-eth0_g0_23:17:480
121470ksoftirqd/1121750irq/30-eth0_g0_23:16:251
121470ksoftirqd/1121650irq/29-eth0_g0_22:41:141
121460ksoftirqd/1121650irq/29-eth0_g0_20:49:001
121460ksoftirqd/1121650irq/29-eth0_g0_00:34:401
121650450irq/29-eth0_g0_28023-21awk19:03:160
121450ksoftirqd/1121750irq/30-eth0_g0_22:31:391
121450ksoftirqd/1121750irq/30-eth0_g0_21:12:081
121450ksoftirqd/1121650irq/29-eth0_g0_22:20:471
121450ksoftirqd/1121650irq/29-eth0_g0_22:20:471
324252440sleep0121750irq/30-eth0_g0_19:23:050
121650440irq/29-eth0_g0_31ksoftirqd/000:27:540
303692430sleep0121650irq/29-eth0_g0_21:26:240
121650430irq/29-eth0_g0_31ksoftirqd/023:02:540
121650430irq/29-eth0_g0_31ksoftirqd/022:08:140
121650430irq/29-eth0_g0_15228-21munin-run22:37:530
121430ksoftirqd/1121750irq/30-eth0_g0_22:37:221
121430ksoftirqd/1121650irq/29-eth0_g0_23:18:151
49392420sleep1121650irq/29-eth0_g0_00:07:531
121750420irq/30-eth0_g0_81712sleep100:18:361
121750420irq/30-eth0_g0_121ksoftirqd/123:35:381
121650420irq/29-eth0_g0_121ksoftirqd/121:20:181
121420ksoftirqd/1121650irq/29-eth0_g0_00:27:441
121420ksoftirqd/1121650irq/29-eth0_g0_00:13:381
121750410irq/30-eth0_g0_1219-21kworker/1:222:05:461
121750410irq/30-eth0_g0_121ksoftirqd/122:44:301
121650410irq/29-eth0_g0_25379-21latency23:18:090
121650410irq/29-eth0_g0_1964-21runrttasks20:32:040
121650410irq/29-eth0_g0_15851-21find22:38:140
121650410irq/29-eth0_g0_13-21kworker/0:123:03:160
121650410irq/29-eth0_g0_13-21kworker/0:121:29:080
121650410irq/29-eth0_g0_121ksoftirqd/121:43:141
121410ksoftirqd/1121650irq/29-eth0_g0_23:31:300
121750400irq/30-eth0_g0_31ksoftirqd/023:57:180
121750400irq/30-eth0_g0_121ksoftirqd/123:52:521
121650400irq/29-eth0_g0_13-21kworker/0:122:48:470
121650400irq/29-eth0_g0_13-21kworker/0:121:44:580
121650400irq/29-eth0_g0_13-21kworker/0:121:41:360
121650400irq/29-eth0_g0_121ksoftirqd/123:34:220
121400ksoftirqd/1121750irq/30-eth0_g0_20:58:100
2859199391cyclictest18233-21wc22:48:131
2859199391cyclictest17539-21/usr/sbin/munin20:33:131
121750390irq/30-eth0_g0_121ksoftirqd/123:53:131
121750390irq/30-eth0_g0_121ksoftirqd/122:15:471
121750390irq/30-eth0_g0_121ksoftirqd/122:15:471
121750390irq/30-eth0_g0_0-21swapper/123:04:341
121650390irq/29-eth0_g0_31ksoftirqd/000:03:140
121650390irq/29-eth0_g0_31ksoftirqd/000:03:140
121650390irq/29-eth0_g0_31ksoftirqd/000:02:130
121650390irq/29-eth0_g0_13-21kworker/0:122:53:050
121650390irq/29-eth0_g0_13-21kworker/0:121:53:420
121650390irq/29-eth0_g0_13-21kworker/0:121:37:500
121650390irq/29-eth0_g0_13-21kworker/0:100:37:190
121390ksoftirqd/1121750irq/30-eth0_g0_23:49:240
121390ksoftirqd/1121750irq/30-eth0_g0_23:43:370
121390ksoftirqd/1121750irq/30-eth0_g0_23:38:540
121390ksoftirqd/1121750irq/30-eth0_g0_22:23:500
121390ksoftirqd/1121750irq/30-eth0_g0_21:50:110
121390ksoftirqd/1121750irq/30-eth0_g0_21:50:110
121390ksoftirqd/1121750irq/30-eth0_g0_21:20:380
121390ksoftirqd/1121750irq/30-eth0_g0_20:37:110
121390ksoftirqd/1121750irq/30-eth0_g0_20:18:260
121390ksoftirqd/1121750irq/30-eth0_g0_20:02:490
121390ksoftirqd/1121750irq/30-eth0_g0_00:18:410
121390ksoftirqd/1121750irq/30-eth0_g0_00:11:380
121390ksoftirqd/1121650irq/29-eth0_g0_22:25:401
121390ksoftirqd/1121650irq/29-eth0_g0_21:37:041
121390ksoftirqd/1121650irq/29-eth0_g0_20:55:481
121390ksoftirqd/1121650irq/29-eth0_g0_20:55:481
2859199382cyclictest28259-21grep23:28:171
2859199381cyclictest23694-21wc20:58:141
121750380irq/30-eth0_g0_3539-21taskset00:01:451
121750380irq/30-eth0_g0_1219-21kworker/1:223:26:181
121750380irq/30-eth0_g0_1219-21kworker/1:221:17:281
121750380irq/30-eth0_g0_121ksoftirqd/123:44:341
121750380irq/30-eth0_g0_121ksoftirqd/121:23:061
121650380irq/29-eth0_g0_6619-21pluginstate00:13:140
121650380irq/29-eth0_g0_2859099cyclictest22:46:500
121650380irq/29-eth0_g0_26125-21chrt21:08:120
121650380irq/29-eth0_g0_1964-21runrttasks20:40:470
121650380irq/29-eth0_g0_13-21kworker/0:122:31:480
121650380irq/29-eth0_g0_13-21kworker/0:100:32:450
121650380irq/29-eth0_g0_0-21swapper/023:08:120
121380ksoftirqd/1121750irq/30-eth0_g0_20:03:050
121380ksoftirqd/1121650irq/29-eth0_g0_20:22:231
121380ksoftirqd/1121650irq/29-eth0_g0_19:53:321
121380ksoftirqd/1121650irq/29-eth0_g0_00:30:211
2859199372cyclictest16270-21ntp_states20:28:111
2859199372cyclictest12897-21grep20:13:161
2859199371cyclictest9996-21sort20:03:071
2859199371cyclictest6705-21unixbench_multi19:48:151
2859199371cyclictest5145-21sort19:43:101
2859199371cyclictest4949-21grep21:53:161
2859199371cyclictest18999-21grep20:38:161
121750370irq/30-eth0_g0_1219-21kworker/1:222:59:081
121750370irq/30-eth0_g0_1219-21kworker/1:222:55:111
121750370irq/30-eth0_g0_121ksoftirqd/100:06:561
121750370irq/30-eth0_g0_121ksoftirqd/100:06:561
121650370irq/29-eth0_g0_5374-21sendmail_mailqu19:43:140
121650370irq/29-eth0_g0_31ksoftirqd/019:08:160
121650370irq/29-eth0_g0_2859099cyclictest21:58:300
121650370irq/29-eth0_g0_1964-21runrttasks22:13:180
121650370irq/29-eth0_g0_1964-21runrttasks22:13:180
121650370irq/29-eth0_g0_1964-21runrttasks21:06:060
121650370irq/29-eth0_g0_1964-21runrttasks20:52:390
121650370irq/29-eth0_g0_1964-21runrttasks19:53:290
121650370irq/29-eth0_g0_1964-21runrttasks19:15:170
121650370irq/29-eth0_g0_13-21kworker/0:122:07:130
121370ksoftirqd/1121650irq/29-eth0_g0_23:38:021
2859199361cyclictest3676-21df_abs19:38:041
2859199361cyclictest3080-21grep19:33:161
2859199361cyclictest0-21swapper/121:05:221
121650360irq/29-eth0_g0_28330-21runrttasks19:04:591
121650360irq/29-eth0_g0_1964-21runrttasks20:23:420
121650360irq/29-eth0_g0_121ksoftirqd/121:32:321
121360ksoftirqd/1121750irq/30-eth0_g0_20:16:490
121360ksoftirqd/1121750irq/30-eth0_g0_19:35:330
121360ksoftirqd/1121650irq/29-eth0_g0_20:23:411
121360ksoftirqd/1121650irq/29-eth0_g0_19:58:111
2859199353cyclictest0-21swapper/119:24:081
2859199351cyclictest1668-21/usr/sbin/munin19:28:121
2859199351cyclictest11295-21missed_timers20:08:101
2859199351cyclictest11295-21missed_timers20:08:101
121650350irq/29-eth0_g0_19787-21irqstats20:43:080
121650350irq/29-eth0_g0_1964-21runrttasks19:52:010
121650350irq/29-eth0_g0_1508-21netstat19:28:090
121650350irq/29-eth0_g0_0-21swapper/019:18:170
121350ksoftirqd/1121750irq/30-eth0_g0_20:07:590
121350ksoftirqd/1121750irq/30-eth0_g0_20:07:590
2859199341cyclictest30561-21unixbench_multi19:13:151
121750340irq/30-eth0_g0_28911-21interrupts19:08:081
121650340irq/29-eth0_g0_4239-21unixbench_multi19:38:130
121340ksoftirqd/1121750irq/30-eth0_g0_20:54:540
121340ksoftirqd/1121750irq/30-eth0_g0_20:54:540
2859199320cyclictest0-21swapper/120:43:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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