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2026-05-02 - 17:42

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 the 376 highest latencies:
System rack3slot5s.osadl.org (updated Sat May 02, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1035221460sleep1121450irq/29-eth0_g0_12:03:231
2536221140sleep0121450irq/29-eth0_g0_09:11:430
2536221140sleep0121450irq/29-eth0_g0_09:11:430
121790ksoftirqd/1121550irq/30-eth0_g0_12:38:171
121750ksoftirqd/1121550irq/30-eth0_g0_09:03:221
121720ksoftirqd/1121550irq/30-eth0_g0_09:36:481
121720ksoftirqd/1121550irq/30-eth0_g0_09:27:501
121700ksoftirqd/1121450irq/29-eth0_g0_11:38:041
16112690sleep1121550irq/30-eth0_g0_10:37:191
121640ksoftirqd/1121550irq/30-eth0_g0_10:21:211
107332630sleep1121550irq/30-eth0_g0_12:06:541
258212590sleep1121550irq/30-eth0_g0_09:16:091
121570ksoftirqd/1121550irq/30-eth0_g0_12:15:441
92792480sleep1121450irq/29-eth0_g0_11:52:431
121480ksoftirqd/1121450irq/29-eth0_g0_10:19:030
121480ksoftirqd/1121450irq/29-eth0_g0_10:19:030
300382470sleep0121450irq/29-eth0_g0_09:57:580
121470ksoftirqd/1121550irq/30-eth0_g0_10:42:501
121460ksoftirqd/1121550irq/30-eth0_g0_11:40:230
121450ksoftirqd/1121450irq/29-eth0_g0_10:11:491
121440ksoftirqd/1121550irq/30-eth0_g0_11:03:561
121440ksoftirqd/1121550irq/30-eth0_g0_11:03:561
121440ksoftirqd/1121450irq/29-eth0_g0_11:17:011
59732430sleep0121550irq/30-eth0_g0_11:19:400
121430ksoftirqd/1121550irq/30-eth0_g0_11:34:460
119472430sleep0121550irq/30-eth0_g0_12:19:160
121550420irq/30-eth0_g0_1221-21kworker/1:211:05:201
121550420irq/30-eth0_g0_1221-21kworker/1:210:29:301
121550420irq/30-eth0_g0_1221-21kworker/1:209:57:551
121550420irq/30-eth0_g0_1221-21kworker/1:209:11:291
121550420irq/30-eth0_g0_1221-21kworker/1:209:11:291
121450420irq/29-eth0_g0_121ksoftirqd/110:56:210
121420ksoftirqd/1121450irq/29-eth0_g0_10:27:491
121550410irq/30-eth0_g0_0-21swapper/112:25:201
121450410irq/29-eth0_g0_13-21kworker/0:111:10:510
121410ksoftirqd/1121450irq/29-eth0_g0_10:06:020
121550400irq/30-eth0_g0_26447-21chrt09:22:331
121450400irq/29-eth0_g0_121ksoftirqd/111:27:050
121400ksoftirqd/1121450irq/29-eth0_g0_09:29:261
121450390irq/29-eth0_g0_5122sleep010:26:330
121450390irq/29-eth0_g0_13-21kworker/0:112:12:320
121450390irq/29-eth0_g0_13-21kworker/0:111:00:430
121450390irq/29-eth0_g0_13-21kworker/0:111:00:430
121450390irq/29-eth0_g0_13-21kworker/0:109:48:590
121450390irq/29-eth0_g0_13-21kworker/0:109:17:070
121390ksoftirqd/1121450irq/29-eth0_g0_11:47:061
121390ksoftirqd/1121450irq/29-eth0_g0_09:52:231
121390ksoftirqd/1121450irq/29-eth0_g0_08:39:311
121390ksoftirqd/1121450irq/29-eth0_g0_07:29:231
103252390sleep0121450irq/29-eth0_g0_12:03:040
121550380irq/30-eth0_g0_1221-21kworker/1:212:30:571
121550380irq/30-eth0_g0_1221-21kworker/1:210:44:231
121550380irq/30-eth0_g0_1221-21kworker/1:209:41:171
121550380irq/30-eth0_g0_121ksoftirqd/110:04:261
121450380irq/29-eth0_g0_13-21kworker/0:110:51:060
121450380irq/29-eth0_g0_13-21kworker/0:110:36:240
121450380irq/29-eth0_g0_13-21kworker/0:110:09:260
121450380irq/29-eth0_g0_13-21kworker/0:109:52:330
121450380irq/29-eth0_g0_13-21kworker/0:109:29:190
121450380irq/29-eth0_g0_121ksoftirqd/111:55:260
121450380irq/29-eth0_g0_121ksoftirqd/111:55:260
121380ksoftirqd/1121550irq/30-eth0_g0_12:22:010
121380ksoftirqd/1121450irq/29-eth0_g0_12:09:271
121380ksoftirqd/1121450irq/29-eth0_g0_08:37:591
1287699377cyclictest121550irq/30-eth0_g0_11:32:271
121550370irq/30-eth0_g0_1221-21kworker/1:212:21:451
121550370irq/30-eth0_g0_1221-21kworker/1:211:27:091
121550370irq/30-eth0_g0_1221-21kworker/1:211:10:101
121550370irq/30-eth0_g0_1221-21kworker/1:210:56:501
121550370irq/30-eth0_g0_0-21swapper/108:33:361
121450370irq/29-eth0_g0_19033-21latency_hist08:09:230
121450370irq/29-eth0_g0_13-21kworker/0:109:42:000
121450370irq/29-eth0_g0_121ksoftirqd/112:05:180
121450370irq/29-eth0_g0_121ksoftirqd/111:54:070
121450370irq/29-eth0_g0_121ksoftirqd/111:32:390
121450370irq/29-eth0_g0_121ksoftirqd/110:47:130
121370ksoftirqd/1121450irq/29-eth0_g0_11:56:131
121370ksoftirqd/1121450irq/29-eth0_g0_11:56:131
121370ksoftirqd/1121450irq/29-eth0_g0_08:56:561
1287699361cyclictest0-21swapper/108:04:381
121550360irq/30-eth0_g0_1221-21kworker/1:211:22:491
121550360irq/30-eth0_g0_1221-21kworker/1:210:04:181
121550360irq/30-eth0_g0_1221-21kworker/1:209:44:251
121450360irq/29-eth0_g0_1911-21runrttasks07:53:400
121450360irq/29-eth0_g0_13-21kworker/0:111:46:180
121450360irq/29-eth0_g0_13-21kworker/0:111:16:010
121450360irq/29-eth0_g0_13-21kworker/0:111:08:470
121450360irq/29-eth0_g0_13-21kworker/0:110:02:400
121450360irq/29-eth0_g0_1287599cyclictest12:33:070
121450360irq/29-eth0_g0_0-21swapper/012:25:530
121450360irq/29-eth0_g0_0-21swapper/007:06:310
1287699355cyclictest121550irq/30-eth0_g0_10:17:511
1287699355cyclictest121550irq/30-eth0_g0_10:17:511
1287699352cyclictest13892-21munin-run07:19:231
1287699351cyclictest23583-21latency_hist08:54:231
1287699351cyclictest23070-21cat08:49:231
121550350irq/30-eth0_g0_1911-21runrttasks08:04:011
121550350irq/30-eth0_g0_1221-21kworker/1:210:49:371
121450350irq/29-eth0_g0_31ksoftirqd/010:33:430
121450350irq/29-eth0_g0_1911-21runrttasks08:35:530
121450350irq/29-eth0_g0_1287599cyclictest12:35:090
121450350irq/29-eth0_g0_12759-21runrttasks07:08:111
1287699342cyclictest13385-21seq07:14:231
1287699341cyclictest20029-21taskset08:19:231
1287699341cyclictest17452-21taskset07:54:221
121550340irq/30-eth0_g0_21068-21latency_hist08:29:231
121550340irq/30-eth0_g0_0-21swapper/111:44:131
121450340irq/29-eth0_g0_25084-21diskmemload09:35:180
121450340irq/29-eth0_g0_121ksoftirqd/110:22:520
121340ksoftirqd/116663-21taskset07:46:111
1287699331cyclictest151422sleep107:31:161
1287699331cyclictest14403-21latency_hist07:24:231
121450330irq/29-eth0_g0_23614-21latency_hist08:54:230
121450330irq/29-eth0_g0_1911-21runrttasks10:41:480
121450330irq/29-eth0_g0_14458-21latency_hist07:24:230
121450330irq/29-eth0_g0_13-21kworker/0:109:31:090
121450330irq/29-eth0_g0_13-21kworker/0:109:20:490
121330ksoftirqd/1121550irq/30-eth0_g0_08:19:230
1287699322cyclictest20531-21cat08:24:231
1287699322cyclictest1972-21lldpd07:40:221
121450320irq/29-eth0_g0_19206-21runrttasks08:11:120
121450320irq/29-eth0_g0_18463-21runrttasks08:04:210
121450320irq/29-eth0_g0_0-21swapper/009:09:230
121450320irq/29-eth0_g0_0-21swapper/008:29:160
1287699311cyclictest17989-21cat07:59:231
1287699311cyclictest0-21swapper/108:13:031
121550310irq/30-eth0_g0_1911-21runrttasks07:42:540
121450310irq/29-eth0_g0_0-21swapper/007:11:240
1287699301cyclictest25084-21diskmemload09:09:221
121450300irq/29-eth0_g0_1911-21runrttasks07:26:430
121450300irq/29-eth0_g0_16966-21cat07:49:230
121450300irq/29-eth0_g0_0-21swapper/009:03:580
121450300irq/29-eth0_g0_0-21swapper/008:47:500
121450300irq/29-eth0_g0_0-21swapper/008:29:230
121450300irq/29-eth0_g0_0-21swapper/007:57:400
121450300irq/29-eth0_g0_0-21swapper/007:34:330
121300ksoftirqd/1121550irq/30-eth0_g0_07:31:210
1287699290cyclictest0-21swapper/107:39:221
121450290irq/29-eth0_g0_0-21swapper/008:54:480
121450290irq/29-eth0_g0_0-21swapper/008:40:010
121450290irq/29-eth0_g0_0-21swapper/008:21:590
121450290irq/29-eth0_g0_0-21swapper/007:15:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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