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2025-12-30 - 17:59

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 Tue Dec 30, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
414721350sleep0121650irq/29-eth0_g0_11:23:260
121760ksoftirqd/187382chrt09:30:110
146612690chrt121750irq/30-eth0_g0_09:54:571
316032610sleep0121750irq/30-eth0_g0_11:02:520
176752600sleep1121750irq/30-eth0_g0_12:18:461
121570ksoftirqd/1121750irq/30-eth0_g0_11:35:171
121560ksoftirqd/1121750irq/30-eth0_g0_07:30:191
121560ksoftirqd/1121750irq/30-eth0_g0_07:30:191
121550ksoftirqd/1121750irq/30-eth0_g0_10:20:171
121650530irq/29-eth0_g0_653199cyclictest11:25:131
121650520irq/29-eth0_g0_653199cyclictest12:35:011
121510ksoftirqd/1121750irq/30-eth0_g0_12:30:181
121510ksoftirqd/1121650irq/29-eth0_g0_11:28:500
121750500irq/30-eth0_g0_653199cyclictest10:05:191
121650500irq/29-eth0_g0_26986-21vmstat08:30:190
121500ksoftirqd/1121750irq/30-eth0_g0_11:44:260
121490ksoftirqd/1121750irq/30-eth0_g0_12:28:301
121490ksoftirqd/1121750irq/30-eth0_g0_12:24:120
121490ksoftirqd/1121750irq/30-eth0_g0_10:59:170
6531994832cyclictest0-21swapper/107:40:431
27792480sleep1121750irq/30-eth0_g0_11:16:491
121750480irq/30-eth0_g0_653199cyclictest09:12:041
653199471cyclictest9532-21proc_pri07:20:141
653199471cyclictest31940-21df_abs11:05:091
121750470irq/30-eth0_g0_653199cyclictest12:02:201
121750470irq/30-eth0_g0_653199cyclictest12:02:201
121470ksoftirqd/1653199cyclictest08:50:001
121470ksoftirqd/1121750irq/30-eth0_g0_12:35:470
121470ksoftirqd/1121750irq/30-eth0_g0_12:32:290
121470ksoftirqd/1121750irq/30-eth0_g0_12:26:540
121470ksoftirqd/1121750irq/30-eth0_g0_10:13:120
112542470sleep0121750irq/30-eth0_g0_11:50:270
108032470sleep1121650irq/29-eth0_g0_09:38:301
653199466cyclictest16307-21ntp_kernel_err10:00:141
6531994618cyclictest0-21swapper/107:50:111
6531994520cyclictest8964-21ntp_offset09:30:161
6531994519cyclictest7125-21runrttasks09:23:311
6531994519cyclictest7125-21runrttasks09:23:311
6531994517cyclictest21145-21runrttasks08:08:421
6531994517cyclictest21145-21runrttasks08:08:421
6531994517cyclictest17869-21runrttasks12:20:071
6531994516cyclictest7759-21runrttasks07:14:571
653199451cyclictest0-21swapper/111:55:121
121750450irq/30-eth0_g0_653199cyclictest10:36:111
121650450irq/29-eth0_g0_653199cyclictest10:42:501
121650450irq/29-eth0_g0_653199cyclictest09:57:331
121650450irq/29-eth0_g0_0-21swapper/011:09:570
121450ksoftirqd/1121750irq/30-eth0_g0_09:05:111
6531994420cyclictest3895-21runrttasks11:20:301
6531994419cyclictest8472-21runrttasks09:29:551
6531994419cyclictest18966-21cat10:10:201
6531994418cyclictest30541-21runrttasks10:59:481
6531994418cyclictest2206-21runrttasks09:03:291
6531994414cyclictest10885-21/usr/sbin/munin11:50:131
6531994410cyclictest121750irq/30-eth0_g0_08:43:521
192762440sleep0121750irq/30-eth0_g0_08:00:150
121750440irq/30-eth0_g0_121ksoftirqd/111:48:311
121650440irq/29-eth0_g0_653199cyclictest09:19:231
6531994331cyclictest1904-21runrttasks10:25:011
6531994323cyclictest0-21swapper/110:50:191
6531994319cyclictest12639-21ntp_offset09:45:131
6531994314cyclictest15784-21/usr/sbin/munin07:45:191
653199431cyclictest0-21swapper/110:15:101
653199431cyclictest0-21swapper/107:55:171
121750430irq/30-eth0_g0_121ksoftirqd/111:04:051
121750430irq/30-eth0_g0_121ksoftirqd/109:40:011
121750430irq/30-eth0_g0_0-21swapper/107:15:111
121650430irq/29-eth0_g0_6061-21unixbench_singl07:05:190
121430ksoftirqd/1653199cyclictest10:45:121
121430ksoftirqd/1121750irq/30-eth0_g0_11:30:141
121430ksoftirqd/1121750irq/30-eth0_g0_09:57:490
121430ksoftirqd/1121650irq/29-eth0_g0_12:10:411
653199422cyclictest27906-21runrttasks08:35:171
653199422cyclictest25904-21runrttasks08:26:581
6531994218cyclictest6528-21cyclictest08:58:171
6531994218cyclictest23750-21/usr/sbin/munin10:30:161
6531994218cyclictest23385-21runrttasks08:16:131
6531994218cyclictest23385-21runrttasks08:16:131
6531994217cyclictest27204-21runrttasks08:32:491
6531994211cyclictest22341-21runrttasks08:13:221
6531994211cyclictest22341-21runrttasks08:13:221
121750420irq/30-eth0_g0_121ksoftirqd/111:40:451
121650420irq/29-eth0_g0_13-21kworker/0:112:15:160
121650420irq/29-eth0_g0_13-21kworker/0:109:10:090
121650420irq/29-eth0_g0_0-21swapper/010:53:450
653199412cyclictest29995-21/usr/sbin/munin08:45:091
6531994117cyclictest1578-21runrttasks11:12:211
6531994117cyclictest1578-21runrttasks11:12:211
6531994117cyclictest0-21swapper/107:29:541
6531994117cyclictest0-21swapper/107:29:541
653199411cyclictest14896-21grep12:05:201
653199411cyclictest14896-21grep12:05:201
653199411cyclictest13428-21grep07:35:191
121650410irq/29-eth0_g0_13-21kworker/0:111:35:460
121650410irq/29-eth0_g0_13-21kworker/0:111:31:120
121650410irq/29-eth0_g0_13-21kworker/0:111:14:090
121650410irq/29-eth0_g0_13-21kworker/0:111:14:090
121650410irq/29-eth0_g0_13-21kworker/0:110:01:590
121650410irq/29-eth0_g0_13-21kworker/0:109:51:180
6531994017cyclictest0-21swapper/108:20:181
6531994017cyclictest0-21swapper/108:20:181
653199401cyclictest0-21swapper/108:00:131
121650400irq/29-eth0_g0_653099cyclictest12:01:540
121650400irq/29-eth0_g0_653099cyclictest12:01:540
121650400irq/29-eth0_g0_19830-21interrupts10:15:090
121650400irq/29-eth0_g0_13-21kworker/0:111:59:260
6531993918cyclictest0-21swapper/107:09:571
121650390irq/29-eth0_g0_25672-21latency_hist10:39:570
121650390irq/29-eth0_g0_1904-21runrttasks08:12:070
121650390irq/29-eth0_g0_1904-21runrttasks08:12:070
121650390irq/29-eth0_g0_1904-21runrttasks07:28:100
121650390irq/29-eth0_g0_1904-21runrttasks07:28:100
121650390irq/29-eth0_g0_1904-21runrttasks07:17:510
121650390irq/29-eth0_g0_13-21kworker/0:110:34:060
121650390irq/29-eth0_g0_13-21kworker/0:110:29:030
121650390irq/29-eth0_g0_13-21kworker/0:109:47:370
121650390irq/29-eth0_g0_11776-21latency07:30:130
121650390irq/29-eth0_g0_11776-21latency07:30:130
121650390irq/29-eth0_g0_10484-21sed09:35:190
121650380irq/29-eth0_g0_26121-21ntpdc10:40:150
121650380irq/29-eth0_g0_20506-21awk08:05:170
121650380irq/29-eth0_g0_20506-21awk08:05:170
121650380irq/29-eth0_g0_1904-21runrttasks09:07:550
121650380irq/29-eth0_g0_1904-21runrttasks08:43:000
121650380irq/29-eth0_g0_1904-21runrttasks08:37:330
121650380irq/29-eth0_g0_1904-21runrttasks08:26:580
121650380irq/29-eth0_g0_13-21kworker/0:112:07:180
121650380irq/29-eth0_g0_13-21kworker/0:112:07:180
121650380irq/29-eth0_g0_13-21kworker/0:110:45:260
121650380irq/29-eth0_g0_0-21swapper/009:19:150
121750370irq/30-eth0_g0_31458-21memory08:50:140
121750370irq/30-eth0_g0_1904-21runrttasks09:01:100
121750370irq/30-eth0_g0_13444-21sed07:35:190
121650370irq/29-eth0_g0_9676-21ls07:20:160
121650370irq/29-eth0_g0_21487-21unixbench_multi10:20:180
121650370irq/29-eth0_g0_1904-21runrttasks08:49:100
121650370irq/29-eth0_g0_1904-21runrttasks07:40:430
121650370irq/29-eth0_g0_0-21swapper/010:07:040
121370ksoftirqd/1121750irq/30-eth0_g0_11:15:120
121750360irq/30-eth0_g0_1904-21runrttasks12:12:510
121750360irq/30-eth0_g0_13-21kworker/0:111:45:340
121650360irq/29-eth0_g0_6648-21grep09:20:180
121650360irq/29-eth0_g0_6648-21grep09:20:180
121650360irq/29-eth0_g0_23983-21if_err_eth008:20:100
121650360irq/29-eth0_g0_23983-21if_err_eth008:20:100
121650360irq/29-eth0_g0_15864-21unixbench_multi07:45:190
121650360irq/29-eth0_g0_13-21kworker/0:109:40:540
121360ksoftirqd/1121650irq/29-eth0_g0_08:57:560
121650350irq/29-eth0_g0_17010-21swap07:50:170
121650350irq/29-eth0_g0_0-21swapper/009:25:500
121650340irq/29-eth0_g0_7256-21unixbench_multi07:10:180
121650340irq/29-eth0_g0_22647-21df_abs08:15:100
121650340irq/29-eth0_g0_22647-21df_abs08:15:100
121650340irq/29-eth0_g0_0-21swapper/007:55:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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