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2026-05-10 - 21:09

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 Sun May 10, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2594621340sleep0121450irq/29-eth0_g0_10:54:070
324821260sleep1121450irq/29-eth0_g0_12:30:341
1769621170sleep1121450irq/29-eth0_g0_09:33:121
1822721050sleep0121550irq/30-eth0_g0_09:38:290
121950ksoftirqd/1121550irq/30-eth0_g0_08:36:181
185712920sleep0121450irq/29-eth0_g0_09:41:340
211362900sleep0121450irq/29-eth0_g0_10:07:000
121740ksoftirqd/1121550irq/30-eth0_g0_12:29:180
289892580sleep0121550irq/30-eth0_g0_11:24:200
121580ksoftirqd/169682chrt07:46:490
121490ksoftirqd/1121550irq/30-eth0_g0_09:53:531
295052480sleep0121450irq/29-eth0_g0_11:29:300
121480ksoftirqd/1121550irq/30-eth0_g0_11:16:101
121460ksoftirqd/1121550irq/30-eth0_g0_11:33:491
121550450irq/30-eth0_g0_0-21swapper/112:25:121
121450ksoftirqd/1121550irq/30-eth0_g0_11:24:041
121450ksoftirqd/1121550irq/30-eth0_g0_10:00:061
121450ksoftirqd/1121450irq/29-eth0_g0_10:50:131
121450440irq/29-eth0_g0_13-21kworker/0:111:09:400
121440ksoftirqd/1121450irq/29-eth0_g0_11:53:260
121440ksoftirqd/1121450irq/29-eth0_g0_11:53:260
121550430irq/30-eth0_g0_1221-21kworker/1:210:18:241
121550430irq/30-eth0_g0_1221-21kworker/1:209:43:301
121430ksoftirqd/1121450irq/29-eth0_g0_09:16:490
121550420irq/30-eth0_g0_25152sleep112:23:551
121550420irq/30-eth0_g0_1221-21kworker/1:212:12:421
121450420irq/29-eth0_g0_31ksoftirqd/011:23:510
121550410irq/30-eth0_g0_1221-21kworker/1:211:55:551
121550410irq/30-eth0_g0_1221-21kworker/1:210:54:481
121550410irq/30-eth0_g0_1221-21kworker/1:209:14:581
121550410irq/30-eth0_g0_121ksoftirqd/112:04:151
121450410irq/29-eth0_g0_121ksoftirqd/112:11:380
121450410irq/29-eth0_g0_121ksoftirqd/110:41:510
121450410irq/29-eth0_g0_121ksoftirqd/110:41:510
121410ksoftirqd/1121550irq/30-eth0_g0_10:36:030
121410ksoftirqd/1121450irq/29-eth0_g0_10:59:151
19262400sleep1121550irq/30-eth0_g0_12:17:591
121550400irq/30-eth0_g0_121ksoftirqd/111:44:111
121450400irq/29-eth0_g0_13-21kworker/0:109:10:300
312899391cyclictest11244-21sort08:29:051
121550390irq/30-eth0_g0_1221-21kworker/1:211:11:021
121550390irq/30-eth0_g0_1221-21kworker/1:209:54:271
121550390irq/30-eth0_g0_1221-21kworker/1:209:12:281
121550390irq/30-eth0_g0_121ksoftirqd/110:46:381
121450390irq/29-eth0_g0_31ksoftirqd/010:31:370
121450390irq/29-eth0_g0_2758-21runrttasks07:04:551
121450390irq/29-eth0_g0_22940-21taskset10:24:260
121450390irq/29-eth0_g0_13-21kworker/0:110:03:410
121450390irq/29-eth0_g0_13-21kworker/0:109:54:260
121450390irq/29-eth0_g0_13-21kworker/0:109:50:100
121450390irq/29-eth0_g0_13-21kworker/0:109:44:190
121450390irq/29-eth0_g0_121ksoftirqd/110:18:180
121450390irq/29-eth0_g0_0-21swapper/012:05:230
121390ksoftirqd/1121550irq/30-eth0_g0_11:45:080
121390ksoftirqd/1121550irq/30-eth0_g0_11:41:380
121390ksoftirqd/1121550irq/30-eth0_g0_11:16:200
121390ksoftirqd/1121550irq/30-eth0_g0_11:08:400
121390ksoftirqd/1121550irq/30-eth0_g0_10:48:350
121390ksoftirqd/1121550irq/30-eth0_g0_10:23:140
121390ksoftirqd/1121550irq/30-eth0_g0_09:20:040
121390ksoftirqd/1121550irq/30-eth0_g0_08:35:280
121390ksoftirqd/1121550irq/30-eth0_g0_08:32:350
121390ksoftirqd/1121550irq/30-eth0_g0_08:04:460
121390ksoftirqd/1121550irq/30-eth0_g0_07:32:140
121390ksoftirqd/1121450irq/29-eth0_g0_10:10:180
121390ksoftirqd/1121450irq/29-eth0_g0_09:26:411
312899381cyclictest0-21swapper/108:00:051
121550380irq/30-eth0_g0_1221-21kworker/1:211:05:471
121550380irq/30-eth0_g0_121ksoftirqd/111:38:351
121550380irq/30-eth0_g0_121ksoftirqd/110:35:361
121550380irq/30-eth0_g0_0-21swapper/112:37:451
121550380irq/30-eth0_g0_0-21swapper/111:28:331
121550380irq/30-eth0_g0_0-21swapper/110:09:261
121450380irq/29-eth0_g0_31ksoftirqd/012:19:140
121450380irq/29-eth0_g0_13-21kworker/0:112:36:470
121450380irq/29-eth0_g0_13-21kworker/0:111:36:140
121450380irq/29-eth0_g0_13-21kworker/0:110:59:430
121450380irq/29-eth0_g0_13-21kworker/0:109:31:030
121380ksoftirqd/1121550irq/30-eth0_g0_12:24:570
121380ksoftirqd/1121550irq/30-eth0_g0_12:00:270
121380ksoftirqd/1121550irq/30-eth0_g0_09:24:440
121380ksoftirqd/1121550irq/30-eth0_g0_08:28:040
312899371cyclictest6209-21cat07:39:041
121550370irq/30-eth0_g0_1221-21kworker/1:211:49:101
121550370irq/30-eth0_g0_1221-21kworker/1:211:49:101
121550370irq/30-eth0_g0_1221-21kworker/1:210:04:491
121550370irq/30-eth0_g0_121ksoftirqd/111:42:201
121550370irq/30-eth0_g0_121ksoftirqd/109:19:061
121550370irq/30-eth0_g0_0-21swapper/110:26:391
121450370irq/29-eth0_g0_32202-21chrt11:56:320
121370ksoftirqd/1121450irq/29-eth0_g0_07:51:081
121550360irq/30-eth0_g0_1221-21kworker/1:209:34:501
121550360irq/30-eth0_g0_121ksoftirqd/107:48:541
121450360irq/29-eth0_g0_7698-21latency_hist07:54:050
121450360irq/29-eth0_g0_13-21kworker/0:112:14:150
121450360irq/29-eth0_g0_13-21kworker/0:110:50:450
121450360irq/29-eth0_g0_0-21swapper/007:07:290
312899352cyclictest1972-21lldpd07:42:121
312899352cyclictest1868-21sshd08:29:291
312899351cyclictest234782sleep110:29:501
312899351cyclictest226762sleep110:22:161
312899351cyclictest10207-21cat08:19:041
312899351cyclictest0-21swapper/107:24:041
121550350irq/30-eth0_g0_1221-21kworker/1:210:41:041
121550350irq/30-eth0_g0_1221-21kworker/1:210:41:041
121450350irq/29-eth0_g0_1911-21runrttasks08:55:120
121450350irq/29-eth0_g0_1911-21runrttasks08:55:120
121450350irq/29-eth0_g0_1911-21runrttasks08:45:400
121450350irq/29-eth0_g0_1911-21runrttasks08:14:310
121450350irq/29-eth0_g0_1911-21runrttasks07:43:060
312899341cyclictest15249-21diskmemload09:49:041
312899341cyclictest137342sleep108:54:031
312899341cyclictest0-21swapper/107:57:491
312899341cyclictest0-21swapper/107:24:101
312899340cyclictest0-21swapper/112:02:051
121450340irq/29-eth0_g0_1911-21runrttasks09:02:570
121450340irq/29-eth0_g0_1911-21runrttasks09:02:570
121450340irq/29-eth0_g0_1911-21runrttasks08:10:170
121450340irq/29-eth0_g0_1911-21runrttasks07:38:100
121450340irq/29-eth0_g0_1911-21runrttasks07:14:000
121450340irq/29-eth0_g0_1911-21runrttasks07:14:000
121450340irq/29-eth0_g0_10712-21cat08:24:040
312899331cyclictest146952sleep109:03:301
312899331cyclictest146952sleep109:03:301
312899331cyclictest0-21swapper/108:05:261
312899331cyclictest0-21swapper/107:19:031
121450330irq/29-eth0_g0_4649-21sort07:24:040
121450330irq/29-eth0_g0_1911-21runrttasks07:58:280
121450330irq/29-eth0_g0_1911-21runrttasks07:26:000
121550320irq/30-eth0_g0_1911-21runrttasks07:14:090
121450320irq/29-eth0_g0_1911-21runrttasks08:49:250
121450320irq/29-eth0_g0_1911-21runrttasks08:42:120
121450320irq/29-eth0_g0_1911-21runrttasks08:02:200
121450320irq/29-eth0_g0_13017-21runrttasks08:46:371
121450320irq/29-eth0_g0_0-21swapper/108:41:481
121550310irq/30-eth0_g0_9754-21latency_hist08:14:041
121550310irq/30-eth0_g0_0-21swapper/107:12:541
121550310irq/30-eth0_g0_0-21swapper/107:12:541
121450310irq/29-eth0_g0_5554-21runrttasks07:33:011
121450310irq/29-eth0_g0_0-21swapper/009:08:420
121310ksoftirqd/1121550irq/30-eth0_g0_08:57:331
121310ksoftirqd/1121550irq/30-eth0_g0_08:57:331
3128992918cyclictest0-21swapper/109:06:421
121550290irq/30-eth0_g0_0-21swapper/108:20:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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