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2025-12-06 - 13:46

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 792 highest latencies:
System rack3slot5s.osadl.org (updated Sat Dec 06, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121910ksoftirqd/1121650irq/29-eth0_g0_23:46:040
21992710sleep1121750irq/30-eth0_g0_23:03:471
121690ksoftirqd/1121750irq/30-eth0_g0_21:38:131
121530ksoftirqd/1121750irq/30-eth0_g0_21:41:451
274652500sleep1121650irq/29-eth0_g0_21:53:201
121490ksoftirqd/1121750irq/30-eth0_g0_22:56:261
121480ksoftirqd/1121750irq/30-eth0_g0_23:49:511
121480ksoftirqd/1121750irq/30-eth0_g0_19:54:161
76322470sleep1121650irq/29-eth0_g0_23:56:591
121460ksoftirqd/1121750irq/30-eth0_g0_21:47:191
121460ksoftirqd/1121650irq/29-eth0_g0_22:04:031
121460ksoftirqd/1121650irq/29-eth0_g0_00:27:551
111842460sleep1121750irq/30-eth0_g0_00:31:531
121750450irq/30-eth0_g0_121ksoftirqd/122:15:021
121450ksoftirqd/1121750irq/30-eth0_g0_20:15:010
121450ksoftirqd/1121650irq/29-eth0_g0_23:32:591
121450ksoftirqd/1121650irq/29-eth0_g0_21:19:201
121650440irq/29-eth0_g0_13-21kworker/0:122:38:200
121650440irq/29-eth0_g0_13-21kworker/0:121:41:060
121440ksoftirqd/11085999cyclictest21:59:251
273212430sleep0121650irq/29-eth0_g0_21:51:360
121650430irq/29-eth0_g0_31ksoftirqd/023:09:110
121650430irq/29-eth0_g0_31ksoftirqd/000:06:220
121430ksoftirqd/1121750irq/30-eth0_g0_22:42:031
121430ksoftirqd/1121750irq/30-eth0_g0_00:21:471
8262420sleep0121650irq/29-eth0_g0_22:50:040
8262420sleep0121650irq/29-eth0_g0_22:50:040
121750420irq/30-eth0_g0_1219-21kworker/1:200:12:101
121650420irq/29-eth0_g0_10857-21cyclictest19:10:000
121750410irq/30-eth0_g0_121ksoftirqd/123:36:091
121650410irq/29-eth0_g0_31ksoftirqd/021:28:300
121650410irq/29-eth0_g0_31ksoftirqd/021:11:510
121650410irq/29-eth0_g0_13-21kworker/0:123:24:370
121650410irq/29-eth0_g0_13-21kworker/0:121:57:200
121650410irq/29-eth0_g0_0-21swapper/023:12:540
121410ksoftirqd/1121750irq/30-eth0_g0_22:07:040
121410ksoftirqd/1121650irq/29-eth0_g0_00:38:431
121410ksoftirqd/1121650irq/29-eth0_g0_00:06:151
121750400irq/30-eth0_g0_31ksoftirqd/022:01:260
121750400irq/30-eth0_g0_121ksoftirqd/123:28:181
121750400irq/30-eth0_g0_121ksoftirqd/123:09:531
121650400irq/29-eth0_g0_31ksoftirqd/023:56:390
121650400irq/29-eth0_g0_31ksoftirqd/021:16:490
121650400irq/29-eth0_g0_13-21kworker/0:123:43:050
121650400irq/29-eth0_g0_13-21kworker/0:123:00:300
121650400irq/29-eth0_g0_13-21kworker/0:122:23:400
121650400irq/29-eth0_g0_13-21kworker/0:122:19:250
121650400irq/29-eth0_g0_13-21kworker/0:122:14:210
121650400irq/29-eth0_g0_13-21kworker/0:100:12:230
121650400irq/29-eth0_g0_13-21kworker/0:100:03:260
121400ksoftirqd/1121650irq/29-eth0_g0_22:31:281
1085999402cyclictest2027-21lldpd19:47:441
121750390irq/30-eth0_g0_1219-21kworker/1:223:20:461
121750390irq/30-eth0_g0_1219-21kworker/1:221:12:161
121750390irq/30-eth0_g0_121ksoftirqd/123:42:181
121750390irq/30-eth0_g0_121ksoftirqd/122:45:241
121750390irq/30-eth0_g0_121ksoftirqd/122:05:401
121650390irq/29-eth0_g0_31ksoftirqd/022:46:080
121650390irq/29-eth0_g0_13-21kworker/0:123:53:570
121650390irq/29-eth0_g0_13-21kworker/0:123:15:320
121650390irq/29-eth0_g0_13-21kworker/0:121:36:470
121650390irq/29-eth0_g0_13-21kworker/0:121:30:320
121650390irq/29-eth0_g0_13-21kworker/0:121:20:070
121650390irq/29-eth0_g0_13-21kworker/0:100:21:070
121650390irq/29-eth0_g0_121ksoftirqd/122:57:550
121750380irq/30-eth0_g0_1219-21kworker/1:222:27:001
121750380irq/30-eth0_g0_121ksoftirqd/123:13:171
121750380irq/30-eth0_g0_121ksoftirqd/121:30:501
121650380irq/29-eth0_g0_31ksoftirqd/022:41:150
121650380irq/29-eth0_g0_31ksoftirqd/000:15:340
121650380irq/29-eth0_g0_13-21kworker/0:123:28:160
121650380irq/29-eth0_g0_13-21kworker/0:100:37:350
121650380irq/29-eth0_g0_0-21swapper/020:18:590
121380ksoftirqd/1121650irq/29-eth0_g0_22:35:021
121380ksoftirqd/1121650irq/29-eth0_g0_22:13:331
121380ksoftirqd/1121650irq/29-eth0_g0_20:13:421
121380ksoftirqd/1121650irq/29-eth0_g0_19:55:531
121380ksoftirqd/1121650irq/29-eth0_g0_19:20:011
121750370irq/30-eth0_g0_1219-21kworker/1:222:21:081
121650370irq/29-eth0_g0_1966-21runrttasks19:52:460
121650370irq/29-eth0_g0_13-21kworker/0:123:39:120
121650370irq/29-eth0_g0_13-21kworker/0:123:32:080
121650370irq/29-eth0_g0_13-21kworker/0:122:30:150
121650370irq/29-eth0_g0_13-21kworker/0:100:31:480
1085999378cyclictest0-21swapper/123:16:491
1499360watchdog/1107552sleep119:08:551
121750360irq/30-eth0_g0_9816-21seq00:18:451
121750360irq/30-eth0_g0_0-21swapper/121:21:571
121650360irq/29-eth0_g0_31ksoftirqd/000:25:300
121650360irq/29-eth0_g0_1966-21runrttasks19:56:130
121650360irq/29-eth0_g0_13142-21seq19:32:010
121650360irq/29-eth0_g0_13142-21seq19:32:010
121650360irq/29-eth0_g0_13-21kworker/0:122:25:130
121650360irq/29-eth0_g0_0-21swapper/021:45:370
1085999362cyclictest73882sleep123:55:001
1085999361cyclictest0-21swapper/121:25:181
1085999361cyclictest0-21swapper/121:01:371
121750350irq/30-eth0_g0_1085999cyclictest00:03:061
121750350irq/30-eth0_g0_0-21swapper/120:07:341
121650350irq/29-eth0_g0_1966-21runrttasks20:25:010
121650350irq/29-eth0_g0_0-21swapper/020:50:070
121350ksoftirqd/1121750irq/30-eth0_g0_20:05:560
121350ksoftirqd/1121650irq/29-eth0_g0_20:33:031
121350ksoftirqd/1121650irq/29-eth0_g0_20:33:031
1085999351cyclictest179702sleep120:20:001
1085999351cyclictest0-21swapper/121:05:141
121750340irq/30-eth0_g0_1219-21kworker/1:222:50:181
121750340irq/30-eth0_g0_1219-21kworker/1:222:50:181
121650340irq/29-eth0_g0_1966-21runrttasks20:39:150
121650340irq/29-eth0_g0_1966-21runrttasks19:46:350
121650340irq/29-eth0_g0_1966-21runrttasks19:29:290
121650340irq/29-eth0_g0_11368-21munin-run19:15:000
121650340irq/29-eth0_g0_0-21swapper/021:10:000
121650340irq/29-eth0_g0_0-21swapper/020:40:500
121650340irq/29-eth0_g0_0-21swapper/020:30:050
121650340irq/29-eth0_g0_0-21swapper/020:30:050
121650340irq/29-eth0_g0_0-21swapper/019:38:140
121650340irq/29-eth0_g0_0-21swapper/019:21:340
1085999341cyclictest0-21swapper/119:32:511
1085999341cyclictest0-21swapper/119:32:511
121650330irq/29-eth0_g0_1966-21runrttasks21:01:320
121330ksoftirqd/1121750irq/30-eth0_g0_20:55:530
121330ksoftirqd/1121650irq/29-eth0_g0_20:50:071
1085999331cyclictest0-21swapper/120:29:391
1085999331cyclictest0-21swapper/120:29:391
1085999331cyclictest0-21swapper/119:10:371
121750320irq/30-eth0_g0_0-21swapper/119:39:581
121650320irq/29-eth0_g0_1966-21runrttasks20:00:460
121650320irq/29-eth0_g0_1966-21runrttasks19:43:260
121650320irq/29-eth0_g0_0-21swapper/020:25:370
121650320irq/29-eth0_g0_0-21swapper/020:25:370
121650320irq/29-eth0_g0_0-21swapper/019:18:470
121320ksoftirqd/116310-21taskset20:03:261
1085999321cyclictest0-21swapper/120:58:351
1085999321cyclictest0-21swapper/120:40:021
1085999321cyclictest0-21swapper/119:20:571
1085999320cyclictest0-21swapper/120:50:001
121750310irq/30-eth0_g0_1085999cyclictest20:39:371
121750310irq/30-eth0_g0_0-21swapper/119:43:151
1085999311cyclictest0-21swapper/119:28:131
121650300irq/29-eth0_g0_0-21swapper/020:50:000
121750270irq/30-eth0_g0_0-21swapper/120:20:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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