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2026-05-11 - 09:14

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 May 11, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1446221270sleep0121550irq/30-eth0_g0_23:27:150
1172021060sleep0121450irq/29-eth0_g0_22:59:470
195752990chrt121450irq/29-eth0_g0_00:17:501
121870ksoftirqd/1121550irq/30-eth0_g0_21:49:191
121870ksoftirqd/1121550irq/30-eth0_g0_19:10:271
184812720sleep1121450irq/29-eth0_g0_00:06:541
184812720sleep1121450irq/29-eth0_g0_00:06:541
27262670sleep1121450irq/29-eth0_g0_21:31:081
121570ksoftirqd/1121550irq/30-eth0_g0_20:29:141
121550ksoftirqd/1121450irq/29-eth0_g0_22:00:220
121490ksoftirqd/1121450irq/29-eth0_g0_22:06:401
121480ksoftirqd/1121550irq/30-eth0_g0_23:14:421
121470ksoftirqd/1121550irq/30-eth0_g0_23:53:061
121460ksoftirqd/1121550irq/30-eth0_g0_21:41:451
121550450irq/30-eth0_g0_1221-21kworker/1:223:13:411
121550440irq/30-eth0_g0_1221-21kworker/1:222:47:591
121440ksoftirqd/1121550irq/30-eth0_g0_23:56:081
121550430irq/30-eth0_g0_1221-21kworker/1:222:18:351
121550430irq/30-eth0_g0_1221-21kworker/1:222:18:351
121450430irq/29-eth0_g0_1911-21runrttasks22:20:360
121430ksoftirqd/1121550irq/30-eth0_g0_23:08:060
121430ksoftirqd/1121550irq/30-eth0_g0_21:48:301
2075199428cyclictest6053-21latency_hist22:04:031
195272420sleep0121450irq/29-eth0_g0_00:17:170
121550420irq/30-eth0_g0_8702-21chrt22:30:021
121550420irq/30-eth0_g0_1221-21kworker/1:221:15:571
121550420irq/30-eth0_g0_1221-21kworker/1:221:15:571
121550420irq/30-eth0_g0_121ksoftirqd/121:27:381
121420ksoftirqd/1121550irq/30-eth0_g0_20:07:410
121420ksoftirqd/1121550irq/30-eth0_g0_20:07:410
180752410sleep0121450irq/29-eth0_g0_00:03:040
121450410irq/29-eth0_g0_1911-21runrttasks19:08:120
121450410irq/29-eth0_g0_13-21kworker/0:123:42:010
121450410irq/29-eth0_g0_13-21kworker/0:122:46:230
121450410irq/29-eth0_g0_13-21kworker/0:121:30:220
121450410irq/29-eth0_g0_121ksoftirqd/121:13:210
121410ksoftirqd/1121550irq/30-eth0_g0_21:45:570
121550400irq/30-eth0_g0_31ksoftirqd/022:27:170
121550400irq/30-eth0_g0_1221-21kworker/1:200:31:241
121550400irq/30-eth0_g0_121ksoftirqd/123:20:431
121450400irq/29-eth0_g0_31ksoftirqd/000:34:540
121450400irq/29-eth0_g0_31ksoftirqd/000:34:540
121450400irq/29-eth0_g0_13-21kworker/0:122:39:350
121450400irq/29-eth0_g0_13-21kworker/0:122:34:520
121450400irq/29-eth0_g0_13-21kworker/0:121:26:550
121450400irq/29-eth0_g0_13-21kworker/0:121:22:420
121450400irq/29-eth0_g0_13-21kworker/0:100:26:000
121400ksoftirqd/1121550irq/30-eth0_g0_23:46:150
121400ksoftirqd/1121550irq/30-eth0_g0_22:57:450
121400ksoftirqd/1121450irq/29-eth0_g0_20:07:331
121400ksoftirqd/1121450irq/29-eth0_g0_20:07:331
121400ksoftirqd/1121450irq/29-eth0_g0_19:54:391
121400ksoftirqd/1121450irq/29-eth0_g0_00:11:201
121550390irq/30-eth0_g0_1221-21kworker/1:223:34:011
121550390irq/30-eth0_g0_1221-21kworker/1:222:57:281
121550390irq/30-eth0_g0_1221-21kworker/1:222:34:561
121550390irq/30-eth0_g0_1221-21kworker/1:200:36:131
121550390irq/30-eth0_g0_1221-21kworker/1:200:36:131
121550390irq/30-eth0_g0_121ksoftirqd/123:26:411
121550390irq/30-eth0_g0_121ksoftirqd/123:00:411
121550390irq/30-eth0_g0_121ksoftirqd/122:49:341
121550390irq/30-eth0_g0_121ksoftirqd/121:37:171
121550390irq/30-eth0_g0_0-21swapper/100:22:381
121450390irq/29-eth0_g0_14815-21runrttasks23:30:300
121450390irq/29-eth0_g0_13-21kworker/0:123:36:250
121450390irq/29-eth0_g0_13-21kworker/0:123:15:460
121450390irq/29-eth0_g0_13-21kworker/0:122:15:170
121450390irq/29-eth0_g0_13-21kworker/0:122:15:170
121450390irq/29-eth0_g0_13-21kworker/0:122:11:510
121450390irq/29-eth0_g0_13-21kworker/0:122:05:560
121450390irq/29-eth0_g0_13-21kworker/0:121:58:240
121450390irq/29-eth0_g0_13-21kworker/0:121:40:370
121450390irq/29-eth0_g0_13-21kworker/0:100:07:100
121450390irq/29-eth0_g0_13-21kworker/0:100:07:100
121390ksoftirqd/1121550irq/30-eth0_g0_23:19:460
121390ksoftirqd/1121550irq/30-eth0_g0_23:13:560
121390ksoftirqd/1121550irq/30-eth0_g0_21:01:160
121390ksoftirqd/1121550irq/30-eth0_g0_20:00:320
121390ksoftirqd/1121550irq/30-eth0_g0_19:31:040
121390ksoftirqd/1121550irq/30-eth0_g0_00:31:190
121390ksoftirqd/1121450irq/29-eth0_g0_23:35:431
121390ksoftirqd/1121450irq/29-eth0_g0_23:07:511
121390ksoftirqd/1121450irq/29-eth0_g0_21:58:001
121390ksoftirqd/1121450irq/29-eth0_g0_21:10:221
121390ksoftirqd/1121450irq/29-eth0_g0_20:40:481
121390ksoftirqd/1121450irq/29-eth0_g0_19:39:221
121550380irq/30-eth0_g0_24561-21taskset19:46:201
121550380irq/30-eth0_g0_202942sleep100:24:271
121450380irq/29-eth0_g0_28901-21cut20:29:030
121450380irq/29-eth0_g0_1911-21runrttasks21:38:050
121450380irq/29-eth0_g0_1510-21runrttasks21:19:030
121450380irq/29-eth0_g0_13-21kworker/0:123:54:500
121450380irq/29-eth0_g0_13-21kworker/0:122:49:090
121450380irq/29-eth0_g0_13-21kworker/0:121:51:240
121450380irq/29-eth0_g0_13-21kworker/0:100:21:150
121450380irq/29-eth0_g0_13-21kworker/0:100:11:470
121380ksoftirqd/1121550irq/30-eth0_g0_20:53:520
121380ksoftirqd/1121450irq/29-eth0_g0_22:28:061
121380ksoftirqd/1121450irq/29-eth0_g0_22:22:311
121380ksoftirqd/1121450irq/29-eth0_g0_21:19:111
121380ksoftirqd/1121450irq/29-eth0_g0_21:05:131
121380ksoftirqd/1121450irq/29-eth0_g0_20:14:161
121380ksoftirqd/1121450irq/29-eth0_g0_20:02:011
121380ksoftirqd/1121450irq/29-eth0_g0_19:51:241
121380ksoftirqd/1121450irq/29-eth0_g0_00:01:531
2075199371cyclictest21778-21chrt19:19:031
2075199371cyclictest0-21swapper/119:21:021
121550370irq/30-eth0_g0_20748-21munin-run19:09:021
121550370irq/30-eth0_g0_1221-21kworker/1:222:42:131
121450370irq/29-eth0_g0_31ksoftirqd/021:16:280
121450370irq/29-eth0_g0_1911-21runrttasks22:31:210
121450370irq/29-eth0_g0_1911-21runrttasks19:28:130
121450370irq/29-eth0_g0_13-21kworker/0:123:53:310
121370ksoftirqd/1121450irq/29-eth0_g0_20:23:351
121370ksoftirqd/1121450irq/29-eth0_g0_19:27:121
121550360irq/30-eth0_g0_23497-21taskset19:35:381
121550360irq/30-eth0_g0_1221-21kworker/1:223:40:051
121550360irq/30-eth0_g0_121ksoftirqd/123:44:431
121450360irq/29-eth0_g0_29192-21sshd20:32:280
2075199351cyclictest0-21swapper/120:50:211
121550350irq/30-eth0_g0_1221-21kworker/1:222:10:361
121450350irq/29-eth0_g0_1911-21runrttasks20:20:240
121450350irq/29-eth0_g0_1911-21runrttasks20:17:280
121450350irq/29-eth0_g0_1911-21runrttasks20:13:280
121450350irq/29-eth0_g0_1911-21runrttasks19:55:590
121450350irq/29-eth0_g0_1911-21runrttasks19:45:020
121450350irq/29-eth0_g0_1911-21runrttasks19:41:280
121450350irq/29-eth0_g0_1911-21runrttasks19:38:350
2075199341cyclictest318452sleep120:59:031
121450340irq/29-eth0_g0_1911-21runrttasks21:06:440
121450340irq/29-eth0_g0_1911-21runrttasks20:44:000
121450340irq/29-eth0_g0_1911-21runrttasks19:52:460
2075199331cyclictest0-21swapper/121:04:031
2075199331cyclictest0-21swapper/120:10:421
121450330irq/29-eth0_g0_1911-21runrttasks20:34:560
121450330irq/29-eth0_g0_0-21swapper/019:09:550
2075199321cyclictest0-21swapper/120:49:031
2075199321cyclictest0-21swapper/120:35:291
2075199321cyclictest0-21swapper/120:26:201
121450320irq/29-eth0_g0_21578-21runrttasks19:16:530
121450320irq/29-eth0_g0_1911-21runrttasks20:54:130
121450320irq/29-eth0_g0_0-21swapper/020:46:000
121450320irq/29-eth0_g0_0-21swapper/019:19:370
2075199311cyclictest0-21swapper/119:31:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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