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2026-06-15 - 15:32

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
Click here to display the system's profile data or here to proceed to next system.
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 all highest latencies:
System rack3slot5s.osadl.org (updated Mon Jun 15, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40212900sleep1121650irq/29-eth0_g0_09:49:061
225792830sleep1121750irq/30-eth0_g0_11:13:351
71532670sleep1121650irq/29-eth0_g0_10:06:061
71532670sleep1121650irq/29-eth0_g0_10:06:061
121630ksoftirqd/1121650irq/29-eth0_g0_07:04:271
326042530sleep1121650irq/29-eth0_g0_09:25:441
121650530irq/29-eth0_g0_3243099cyclictest07:24:230
70372520chrt121650irq/29-eth0_g0_12:20:091
121750520irq/30-eth0_g0_3243099cyclictest07:19:260
121650520irq/29-eth0_g0_3243099cyclictest11:04:180
121650500irq/29-eth0_g0_3243099cyclictest09:14:240
121650500irq/29-eth0_g0_3243099cyclictest09:14:240
121500ksoftirqd/1121750irq/30-eth0_g0_11:40:511
121500ksoftirqd/1121750irq/30-eth0_g0_11:16:481
121500ksoftirqd/1121650irq/29-eth0_g0_09:24:040
121650490irq/29-eth0_g0_3243099cyclictest11:11:140
121650490irq/29-eth0_g0_3243099cyclictest10:50:170
121650490irq/29-eth0_g0_3243099cyclictest10:15:370
121650490irq/29-eth0_g0_3243099cyclictest07:09:160
121490ksoftirqd/1121750irq/30-eth0_g0_10:40:290
121490ksoftirqd/1121750irq/30-eth0_g0_07:28:221
121750480irq/30-eth0_g0_3243099cyclictest08:14:160
121650480irq/29-eth0_g0_3243099cyclictest12:32:110
121650480irq/29-eth0_g0_3243099cyclictest10:55:200
121650480irq/29-eth0_g0_3243099cyclictest07:45:360
32430994710cyclictest121650irq/29-eth0_g0_09:05:060
3243099471cyclictest6918-21unixbench_singl07:34:290
121650470irq/29-eth0_g0_3243099cyclictest12:35:040
121650470irq/29-eth0_g0_3243099cyclictest12:26:260
121650470irq/29-eth0_g0_3243099cyclictest11:40:360
121650470irq/29-eth0_g0_3243099cyclictest10:27:160
121650470irq/29-eth0_g0_3243099cyclictest10:10:070
121650470irq/29-eth0_g0_3243099cyclictest10:02:080
121650470irq/29-eth0_g0_3243099cyclictest09:47:160
121650470irq/29-eth0_g0_3243099cyclictest09:09:110
3243099465cyclictest6957-21unixbench_singl10:04:270
3243099465cyclictest6957-21unixbench_singl10:04:270
3243099464cyclictest121650irq/29-eth0_g0_07:42:340
3243099461cyclictest22297-21runrttasks08:39:180
3243099461cyclictest121650irq/29-eth0_g0_08:32:250
121650460irq/29-eth0_g0_3243099cyclictest11:25:200
121650460irq/29-eth0_g0_3243099cyclictest11:19:410
121650460irq/29-eth0_g0_3243099cyclictest11:01:000
121650460irq/29-eth0_g0_3243099cyclictest10:23:310
121650460irq/29-eth0_g0_3243099cyclictest09:38:290
121650460irq/29-eth0_g0_3243099cyclictest08:24:050
121460ksoftirqd/1121750irq/30-eth0_g0_11:39:021
3243099456cyclictest0-21swapper/008:49:550
121750450irq/30-eth0_g0_3243099cyclictest09:30:050
121650450irq/29-eth0_g0_3243099cyclictest09:54:420
121450ksoftirqd/1121750irq/30-eth0_g0_10:58:151
3243099442cyclictest121650irq/29-eth0_g0_08:26:520
3243099442cyclictest11861-21vmstat07:54:280
3243099441cyclictest1964-21runrttasks07:09:060
121750440irq/30-eth0_g0_3243099cyclictest12:01:290
121650440irq/29-eth0_g0_3243099cyclictest12:19:040
121650440irq/29-eth0_g0_3243099cyclictest12:19:040
121650440irq/29-eth0_g0_3243099cyclictest11:54:160
121440ksoftirqd/1121650irq/29-eth0_g0_11:49:261
3243099438cyclictest0-21swapper/008:09:220
3243099436cyclictest0-21swapper/008:59:060
3243099431cyclictest4314-21/usr/sbin/munin12:09:240
3243099431cyclictest30719-21grep11:44:260
121750430irq/30-eth0_g0_1219-21kworker/1:212:34:581
121650430irq/29-eth0_g0_3243099cyclictest08:44:190
121650430irq/29-eth0_g0_3243099cyclictest07:14:060
121430ksoftirqd/1121750irq/30-eth0_g0_09:57:491
121430ksoftirqd/1121650irq/29-eth0_g0_11:48:221
121430ksoftirqd/1121650irq/29-eth0_g0_09:09:051
121430ksoftirqd/1121650irq/29-eth0_g0_08:13:101
32430994215cyclictest12610-21latency07:59:200
121750420irq/30-eth0_g0_3243099cyclictest12:22:470
121750420irq/30-eth0_g0_3243099cyclictest11:49:070
121750420irq/30-eth0_g0_3243099cyclictest09:40:570
121750420irq/30-eth0_g0_1219-21kworker/1:212:00:301
121750420irq/30-eth0_g0_1219-21kworker/1:211:56:251
121750420irq/30-eth0_g0_1219-21kworker/1:210:36:061
121750420irq/30-eth0_g0_1219-21kworker/1:210:29:171
121750420irq/30-eth0_g0_1219-21kworker/1:210:11:161
121650420irq/29-eth0_g0_3243099cyclictest11:34:270
121420ksoftirqd/1121650irq/29-eth0_g0_10:51:091
3243099415cyclictest32429-21cyclictest07:49:170
3243099413cyclictest22000-21runrttasks08:38:240
121750410irq/30-eth0_g0_3243099cyclictest09:25:160
121750410irq/30-eth0_g0_2630-21df12:04:171
121750410irq/30-eth0_g0_1964-21runrttasks10:01:161
121750410irq/30-eth0_g0_1219-21kworker/1:209:31:011
121650410irq/29-eth0_g0_3243099cyclictest10:30:540
121410ksoftirqd/1121650irq/29-eth0_g0_12:17:021
121410ksoftirqd/1121650irq/29-eth0_g0_12:17:021
121410ksoftirqd/1121650irq/29-eth0_g0_09:49:051
32430994016cyclictest22717-21/usr/sbin/munin11:14:160
32430994015cyclictest2568-21/usr/sbin/munin12:04:240
32430994010cyclictest13960-21/usr/sbin/munin08:04:230
3243099401cyclictest26244-21open_files08:54:220
121750400irq/30-eth0_g0_1219-21kworker/1:212:10:201
121750400irq/30-eth0_g0_1219-21kworker/1:210:44:511
121750400irq/30-eth0_g0_1219-21kworker/1:209:39:101
121400ksoftirqd/1121750irq/30-eth0_g0_10:59:551
121400ksoftirqd/1121750irq/30-eth0_g0_10:44:250
3243199392cyclictest22156-21/usr/sbin/munin08:39:281
32430993913cyclictest0-21swapper/007:32:450
3243099391cyclictest0-21swapper/010:34:200
121750390irq/30-eth0_g0_8557-21sshd12:28:351
121750390irq/30-eth0_g0_1219-21kworker/1:211:08:331
121750390irq/30-eth0_g0_1219-21kworker/1:209:20:311
121650390irq/29-eth0_g0_3243099cyclictest11:29:480
121390ksoftirqd/1121650irq/29-eth0_g0_10:41:361
121390ksoftirqd/1121650irq/29-eth0_g0_09:13:471
3243199389cyclictest0-21swapper/111:20:341
121750380irq/30-eth0_g0_3243099cyclictest09:53:130
121750380irq/30-eth0_g0_0-21swapper/111:30:291
121750370irq/30-eth0_g0_1964-21runrttasks07:32:451
121750370irq/30-eth0_g0_1219-21kworker/1:211:26:371
121750370irq/30-eth0_g0_1219-21kworker/1:210:14:311
121370ksoftirqd/1121650irq/29-eth0_g0_08:19:261
3243199361cyclictest13951-21netstat08:04:221
121750360irq/30-eth0_g0_27501-21/usr/sbin/munin08:59:251
121750360irq/30-eth0_g0_16028-21/usr/sbin/munin08:14:221
121750360irq/30-eth0_g0_1219-21kworker/1:212:29:431
121750360irq/30-eth0_g0_1219-21kworker/1:210:20:361
3243199351cyclictest10638-21vmstat07:49:291
121750350irq/30-eth0_g0_1219-21kworker/1:209:15:561
121750350irq/30-eth0_g0_1219-21kworker/1:209:15:561
121650350irq/29-eth0_g0_24048-21head08:44:251
121350ksoftirqd/1121650irq/29-eth0_g0_10:25:281
3243199341cyclictest699-21unixbench_multi07:09:261
3243199341cyclictest20383-21unixbench_singl08:29:281
3243199341cyclictest1854-21wc07:14:251
3243199341cyclictest11790-21tail07:54:271
121650340irq/29-eth0_g0_1964-21runrttasks08:50:031
121750330irq/30-eth0_g0_1219-21kworker/1:209:35:391
121330ksoftirqd/1121650irq/29-eth0_g0_07:44:271
3243199321cyclictest1964-21runrttasks07:43:111
121750320irq/30-eth0_g0_1964-21runrttasks08:38:391
121650320irq/29-eth0_g0_0-21swapper/107:59:071
121320ksoftirqd/1121650irq/29-eth0_g0_08:57:151
121320ksoftirqd/1121650irq/29-eth0_g0_08:24:211
121320ksoftirqd/1121650irq/29-eth0_g0_07:23:201
121750310irq/30-eth0_g0_6961-21vmstat07:34:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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