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2025-11-27 - 20:35

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 376 highest latencies:
System rack3slot5s.osadl.org (updated Thu Nov 27, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
833321510sleep0121850irq/30-eth0_g0_12:13:020
489821440sleep1121850irq/30-eth0_g0_09:25:521
489821440sleep1121850irq/30-eth0_g0_09:25:521
114221270sleep1121750irq/29-eth0_g0_09:17:231
2404221210sleep1121850irq/30-eth0_g0_07:35:141
1211140ksoftirqd/1121850irq/30-eth0_g0_11:48:111
1211090ksoftirqd/1121850irq/30-eth0_g0_09:12:261
1211090ksoftirqd/1121850irq/30-eth0_g0_08:48:341
1211070ksoftirqd/1121850irq/30-eth0_g0_11:02:421
1211070ksoftirqd/1121850irq/30-eth0_g0_09:54:161
1211050ksoftirqd/1121850irq/30-eth0_g0_11:40:201
1211030ksoftirqd/1121850irq/30-eth0_g0_07:56:441
350621020sleep0121850irq/30-eth0_g0_12:00:190
1211020ksoftirqd/1121850irq/30-eth0_g0_10:11:391
1211020ksoftirqd/1121850irq/30-eth0_g0_10:11:391
1211010ksoftirqd/1121850irq/30-eth0_g0_08:15:021
1211000ksoftirqd/1121850irq/30-eth0_g0_11:21:271
1211000ksoftirqd/1121850irq/30-eth0_g0_10:01:431
121990ksoftirqd/1121850irq/30-eth0_g0_08:05:081
121970ksoftirqd/1121850irq/30-eth0_g0_07:18:201
121920ksoftirqd/1121750irq/29-eth0_g0_10:48:371
311002900sleep0121850irq/30-eth0_g0_09:10:380
121880ksoftirqd/1121750irq/29-eth0_g0_11:45:120
121870ksoftirqd/1121750irq/29-eth0_g0_12:18:560
121870ksoftirqd/1121750irq/29-eth0_g0_10:38:280
121860ksoftirqd/1121750irq/29-eth0_g0_08:34:470
121850ksoftirqd/1121750irq/29-eth0_g0_11:23:120
121840ksoftirqd/1245632sleep007:35:540
117622830sleep1121850irq/30-eth0_g0_09:43:451
88902810sleep1121850irq/30-eth0_g0_10:55:161
121800ksoftirqd/1121850irq/30-eth0_g0_09:31:491
59312790sleep1121750irq/29-eth0_g0_08:10:141
252722790sleep1121850irq/30-eth0_g0_10:15:251
95702770sleep1121850irq/30-eth0_g0_12:15:211
303382770sleep1121850irq/30-eth0_g0_10:29:121
279222770sleep1121750irq/29-eth0_g0_10:22:441
73082740sleep1121850irq/30-eth0_g0_12:10:171
3802740sleep1121850irq/30-eth0_g0_11:54:191
205952740sleep1121850irq/30-eth0_g0_07:26:261
58292730sleep0121850irq/30-eth0_g0_10:47:580
121730ksoftirqd/1121850irq/30-eth0_g0_09:35:551
261912720sleep0121750irq/29-eth0_g0_11:37:200
41912710sleep1121850irq/30-eth0_g0_12:02:531
34502690sleep1121850irq/30-eth0_g0_10:41:391
121690ksoftirqd/1121850irq/30-eth0_g0_12:39:590
127362680sleep1121850irq/30-eth0_g0_12:24:131
226702670sleep1121850irq/30-eth0_g0_11:29:401
121670ksoftirqd/1297472sleep010:26:510
121640ksoftirqd/1262472sleep010:19:130
165222630sleep0121850irq/30-eth0_g0_11:14:420
165222630sleep0121850irq/30-eth0_g0_11:14:420
121610ksoftirqd/123342sleep008:00:350
28282590chrt121850irq/30-eth0_g0_09:20:471
177492590sleep1121850irq/30-eth0_g0_08:39:461
121590ksoftirqd/193652sleep008:19:040
121590ksoftirqd/1297502sleep009:08:270
121590ksoftirqd/1121850irq/30-eth0_g0_08:14:280
121580ksoftirqd/1242412sleep011:32:440
154172570sleep1121850irq/30-eth0_g0_11:10:231
154172570sleep1121850irq/30-eth0_g0_11:10:231
121570ksoftirqd/1121850irq/30-eth0_g0_07:11:220
121550ksoftirqd/1227512chrt07:31:500
121550ksoftirqd/1121850irq/30-eth0_g0_07:34:041
121540ksoftirqd/141222sleep008:05:190
80492530sleep1121850irq/30-eth0_g0_10:53:401
11512530sleep0121750irq/29-eth0_g0_09:17:250
25862510sleep1121850irq/30-eth0_g0_08:01:341
121510ksoftirqd/1121850irq/30-eth0_g0_11:17:340
249802490sleep0121750irq/29-eth0_g0_08:55:500
121490ksoftirqd/1121850irq/30-eth0_g0_11:50:100
121480ksoftirqd/151132sleep009:26:440
121480ksoftirqd/151132sleep009:26:440
121470ksoftirqd/1141872sleep012:26:480
121470ksoftirqd/1121850irq/30-eth0_g0_12:30:001
239082460sleep1121850irq/30-eth0_g0_08:54:451
121850460irq/30-eth0_g0_30137-21diskmemload12:37:511
121460ksoftirqd/1121750irq/29-eth0_g0_11:05:350
121460ksoftirqd/1121750irq/29-eth0_g0_10:05:200
225652450sleep0121750irq/29-eth0_g0_11:29:140
181332450chrt121850irq/30-eth0_g0_09:59:360
121750450irq/29-eth0_g0_121ksoftirqd/108:40:091
121450ksoftirqd/1121850irq/30-eth0_g0_10:32:561
121450ksoftirqd/1121850irq/30-eth0_g0_10:02:190
121450ksoftirqd/1121850irq/30-eth0_g0_09:59:401
121850440irq/30-eth0_g0_470-21kworker/1:109:45:171
121750440irq/29-eth0_g0_28342taskset09:20:480
121750440irq/29-eth0_g0_11775-21taskset07:05:200
281042430sleep0121850irq/30-eth0_g0_10:23:280
121750430irq/29-eth0_g0_121ksoftirqd/110:14:440
121750430irq/29-eth0_g0_121ksoftirqd/110:14:440
121750430irq/29-eth0_g0_0-21swapper/011:41:440
121430ksoftirqd/1101972sleep010:59:040
1328799422cyclictest29023-21sshd09:05:341
121750420irq/29-eth0_g0_193782sleep007:24:450
121420ksoftirqd/1228572sleep008:50:330
62152410sleep0121750irq/29-eth0_g0_09:30:130
307142410sleep0121750irq/29-eth0_g0_10:30:090
1328799412cyclictest23375-21processes11:30:191
121750410irq/29-eth0_g0_30137-21diskmemload09:35:240
121750410irq/29-eth0_g0_2175-21runrttasks07:55:250
121750410irq/29-eth0_g0_16527-21sed08:35:180
121750410irq/29-eth0_g0_121ksoftirqd/109:46:390
121410ksoftirqd/1121850irq/30-eth0_g0_10:43:040
121410ksoftirqd/1121750irq/29-eth0_g0_11:05:021
1328799401cyclictest106102sleep108:20:511
121850400irq/30-eth0_g0_25708-21runrttasks08:58:441
121850400irq/30-eth0_g0_0-21swapper/111:59:491
121750400irq/29-eth0_g0_31ksoftirqd/009:50:100
121750400irq/29-eth0_g0_13-21kworker/0:112:20:480
121750400irq/29-eth0_g0_121ksoftirqd/112:06:200
121400ksoftirqd/111526-21/usr/sbin/munin07:05:151
22722390chrt121850irq/30-eth0_g0_11:58:280
1328799391cyclictest6783-21latency_hist12:09:591
1328799391cyclictest17574-21taskset07:20:111
121850390irq/30-eth0_g0_470-21kworker/1:112:27:021
121850390irq/30-eth0_g0_470-21kworker/1:111:19:131
121750390irq/29-eth0_g0_29701-21runrttasks07:49:590
121750390irq/29-eth0_g0_26119-21ntpdc07:40:180
121750390irq/29-eth0_g0_1932-21runrttasks08:23:460
121750390irq/29-eth0_g0_13-21kworker/0:112:31:030
1328799382cyclictest26212-21grep07:40:201
1328799382cyclictest0-21swapper/110:05:341
1328799381cyclictest28367-21cat07:45:191
1328799381cyclictest149232sleep107:13:211
1328799381cyclictest14500-21grep08:30:211
121750380irq/29-eth0_g0_13-21kworker/0:110:51:030
206682370sleep0121750irq/29-eth0_g0_08:45:240
1328799371cyclictest1932-21runrttasks07:52:301
121850370irq/30-eth0_g0_470-21kworker/1:111:35:171
121850370irq/30-eth0_g0_1278-21chrt10:36:171
121750370irq/29-eth0_g0_2175-21runrttasks11:02:000
121750370irq/29-eth0_g0_19811-21latency07:25:120
1328799362cyclictest11943-21/usr/sbin/munin08:25:101
1328799362cyclictest11943-21/usr/sbin/munin08:25:101
1328799361cyclictest26689-21chrt09:00:171
121750360irq/29-eth0_g0_31018-21runrttasks07:52:040
121750360irq/29-eth0_g0_2615-21lldpd07:19:390
121750360irq/29-eth0_g0_2566-21runrttasks09:43:430
121750360irq/29-eth0_g0_1932-21runrttasks09:00:310
121750360irq/29-eth0_g0_12167-21runrttasks08:25:150
121750360irq/29-eth0_g0_12167-21runrttasks08:25:150
121750350irq/29-eth0_g0_1328699cyclictest08:40:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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