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2025-11-29 - 21:47

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 Sat Nov 29, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
845821530sleep1121750irq/29-eth0_g0_12:10:411
1903821470sleep0121750irq/29-eth0_g0_10:00:000
773421240sleep1121750irq/29-eth0_g0_09:31:131
1196221070sleep0121850irq/30-eth0_g0_09:41:430
1889921030sleep0121750irq/29-eth0_g0_11:18:070
1211000ksoftirqd/1121850irq/30-eth0_g0_08:21:061
155492990sleep1121850irq/30-eth0_g0_08:31:231
121970ksoftirqd/1121850irq/30-eth0_g0_11:48:031
121930ksoftirqd/1121850irq/30-eth0_g0_07:07:501
130472870sleep1121850irq/30-eth0_g0_11:04:161
121870ksoftirqd/1121850irq/30-eth0_g0_07:35:101
20552850sleep1121850irq/30-eth0_g0_10:36:221
121840ksoftirqd/1121750irq/29-eth0_g0_11:53:580
121840ksoftirqd/1121750irq/29-eth0_g0_11:53:580
121830ksoftirqd/1121850irq/30-eth0_g0_12:25:121
197842820sleep1121850irq/30-eth0_g0_07:23:341
197842820sleep1121850irq/30-eth0_g0_07:23:341
158822800sleep1121850irq/30-eth0_g0_07:14:231
121790ksoftirqd/1121850irq/30-eth0_g0_10:58:491
121780ksoftirqd/1121850irq/30-eth0_g0_09:02:431
143472770sleep1121850irq/30-eth0_g0_08:29:461
98882760sleep1121850irq/30-eth0_g0_09:36:381
66102760sleep0121850irq/30-eth0_g0_09:29:540
225322750sleep1121850irq/30-eth0_g0_10:07:531
145162750sleep1121750irq/29-eth0_g0_09:48:421
121750ksoftirqd/1121850irq/30-eth0_g0_08:14:521
43232740chrt121750irq/29-eth0_g0_12:00:341
260142740sleep1121850irq/30-eth0_g0_11:35:121
20122720sleep0121750irq/29-eth0_g0_09:18:000
325242710sleep1121850irq/30-eth0_g0_07:54:571
247332690sleep1121850irq/30-eth0_g0_11:31:521
175392690sleep1121750irq/29-eth0_g0_12:34:071
121690ksoftirqd/1202362sleep007:25:030
122722670sleep0121750irq/29-eth0_g0_11:01:110
121650ksoftirqd/1121750irq/29-eth0_g0_11:14:020
274502640sleep1121850irq/30-eth0_g0_07:41:241
274502640sleep1121850irq/30-eth0_g0_07:41:241
32112630sleep1121850irq/30-eth0_g0_11:59:191
221242630sleep1121850irq/30-eth0_g0_08:48:041
73472620chrt121850irq/30-eth0_g0_10:50:091
121610ksoftirqd/1311922sleep011:48:020
310012600sleep0121750irq/29-eth0_g0_10:28:540
121600ksoftirqd/190242sleep010:54:350
121600ksoftirqd/1155422sleep007:13:020
121600ksoftirqd/1121850irq/30-eth0_g0_09:20:121
121590ksoftirqd/1103312sleep009:38:240
121570ksoftirqd/1137672sleep008:27:280
121570ksoftirqd/1116612sleep008:22:150
148382560sleep0121750irq/29-eth0_g0_11:08:130
121560ksoftirqd/1121850irq/30-eth0_g0_11:39:020
253362540sleep0121750irq/29-eth0_g0_11:34:160
159402530sleep1121850irq/30-eth0_g0_11:10:171
205362520chrt121750irq/29-eth0_g0_11:21:280
205362520chrt121750irq/29-eth0_g0_11:21:280
139672510sleep0121850irq/30-eth0_g0_07:09:550
36942500sleep1121850irq/30-eth0_g0_08:03:131
29142500sleep0121750irq/29-eth0_g0_09:20:100
121500ksoftirqd/1121850irq/30-eth0_g0_12:20:380
246242490sleep1121750irq/29-eth0_g0_10:13:031
65932480sleep1121850irq/30-eth0_g0_09:29:511
290782480sleep0121750irq/29-eth0_g0_11:42:480
4902460sleep1121850irq/30-eth0_g0_09:14:571
157392460sleep0121750irq/29-eth0_g0_09:50:220
121460ksoftirqd/1121850irq/30-eth0_g0_08:55:131
121460ksoftirqd/1121850irq/30-eth0_g0_08:46:050
10392460sleep0121750irq/29-eth0_g0_07:55:570
21482450sleep0121750irq/29-eth0_g0_10:36:440
121750450irq/29-eth0_g0_13-21kworker/0:110:48:330
121450ksoftirqd/1121750irq/29-eth0_g0_08:40:420
121450ksoftirqd/1121750irq/29-eth0_g0_08:06:301
174112440sleep0121750irq/29-eth0_g0_09:55:140
146932440sleep0121750irq/29-eth0_g0_09:49:230
1396599441cyclictest15678-21grep09:50:181
121850440irq/30-eth0_g0_470-21kworker/1:110:42:121
121440ksoftirqd/1274862sleep007:41:320
121440ksoftirqd/1274862sleep007:41:320
121440ksoftirqd/1121850irq/30-eth0_g0_12:15:521
121440ksoftirqd/1121850irq/30-eth0_g0_10:21:531
281402430sleep0121850irq/30-eth0_g0_10:20:420
121750430irq/29-eth0_g0_5441-21latency_hist12:04:540
121750430irq/29-eth0_g0_13-21kworker/0:110:33:330
121430ksoftirqd/1298692sleep007:47:530
121430ksoftirqd/1121850irq/30-eth0_g0_07:50:160
121430ksoftirqd/1121750irq/29-eth0_g0_10:45:251
121430ksoftirqd/1121750irq/29-eth0_g0_10:04:381
121750420irq/29-eth0_g0_2620-21chrt08:00:140
121750420irq/29-eth0_g0_2175-21runrttasks11:59:040
121420ksoftirqd/1121850irq/30-eth0_g0_12:37:270
121420ksoftirqd/1121750irq/29-eth0_g0_10:15:590
121420ksoftirqd/1121750irq/29-eth0_g0_10:15:590
121420ksoftirqd/1121750irq/29-eth0_g0_09:40:161
208112410sleep1121850irq/30-eth0_g0_11:22:341
208112410sleep1121850irq/30-eth0_g0_11:22:341
1396599411cyclictest30316-21runrttasks09:07:591
1396599411cyclictest30316-21runrttasks09:07:591
121850410irq/30-eth0_g0_470-21kworker/1:111:05:061
121750410irq/29-eth0_g0_21761-21interrupts11:25:110
121750410irq/29-eth0_g0_13-21kworker/0:112:15:590
121750410irq/29-eth0_g0_121ksoftirqd/112:06:060
121410ksoftirqd/1121750irq/29-eth0_g0_08:41:261
1396599401cyclictest22739-21taskset11:27:061
1396599401cyclictest16789-21interrupts08:35:091
121750400irq/29-eth0_g0_1932-21runrttasks12:25:030
121750400irq/29-eth0_g0_13-21kworker/0:112:30:390
121750400irq/29-eth0_g0_13-21kworker/0:110:40:330
121750400irq/29-eth0_g0_13-21kworker/0:110:13:250
121750400irq/29-eth0_g0_13-21kworker/0:109:10:310
121850390irq/30-eth0_g0_470-21kworker/1:111:16:131
121850390irq/30-eth0_g0_470-21kworker/1:110:29:581
121850390irq/30-eth0_g0_470-21kworker/1:110:26:381
121850390irq/30-eth0_g0_31ksoftirqd/010:58:470
121850390irq/30-eth0_g0_29474-21seq07:46:181
121750390irq/29-eth0_g0_87832sleep012:11:580
121750390irq/29-eth0_g0_5229-21seq08:06:110
121750390irq/29-eth0_g0_31ksoftirqd/008:38:110
121750390irq/29-eth0_g0_18110-21latency_hist07:19:550
121390ksoftirqd/1121750irq/29-eth0_g0_12:08:411
121390ksoftirqd/1121750irq/29-eth0_g0_08:53:071
121390ksoftirqd/1121750irq/29-eth0_g0_07:52:161
1396599382cyclictest8545-21/usr/sbin/munin08:15:081
1396599382cyclictest8545-21/usr/sbin/munin08:15:081
1396599382cyclictest27748-21/usr/sbin/munin11:40:091
121850380irq/30-eth0_g0_470-21kworker/1:109:14:201
121750380irq/29-eth0_g0_31ksoftirqd/008:55:470
121750380irq/29-eth0_g0_20195-21seq07:24:560
121750380irq/29-eth0_g0_20195-21seq07:24:560
121750380irq/29-eth0_g0_121ksoftirqd/110:18:521
121750380irq/29-eth0_g0_121ksoftirqd/110:18:521
121380ksoftirqd/1121750irq/29-eth0_g0_12:21:041
121380ksoftirqd/1121750irq/29-eth0_g0_11:50:071
121380ksoftirqd/1121750irq/29-eth0_g0_11:50:071
121380ksoftirqd/1121750irq/29-eth0_g0_09:59:411
1396599371cyclictest18151-21sort12:35:101
121750370irq/29-eth0_g0_31ksoftirqd/010:04:590
121750370irq/29-eth0_g0_2566-21runrttasks07:36:260
121750370irq/29-eth0_g0_14486-21taskset08:30:000
121750370irq/29-eth0_g0_13-21kworker/0:109:34:280
1396599361cyclictest23900-21taskset07:33:371
121750360irq/29-eth0_g0_9584-21runrttasks08:17:100
121750360irq/29-eth0_g0_9584-21runrttasks08:17:100
121750360irq/29-eth0_g0_6831-21chrt08:10:170
121750360irq/29-eth0_g0_2566-21runrttasks09:06:120
121750360irq/29-eth0_g0_2566-21runrttasks09:06:120
121750360irq/29-eth0_g0_2566-21runrttasks09:02:310
121750360irq/29-eth0_g0_2566-21runrttasks08:50:380
121750360irq/29-eth0_g0_23066-21vmstat07:30:170
1396599352cyclictest16356-21if_eth007:15:081
1396599351cyclictest20642-21seq07:25:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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