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2025-12-01 - 22:13

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 376 highest latencies:
System rack3slot5s.osadl.org (updated Mon Dec 01, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1211390ksoftirqd/1289522sleep008:35:470
1211260ksoftirqd/1121850irq/30-eth0_g0_10:13:161
1211200ksoftirqd/1121850irq/30-eth0_g0_11:04:501
1211180ksoftirqd/1121850irq/30-eth0_g0_10:57:011
828121160sleep1121750irq/29-eth0_g0_10:24:231
1211090ksoftirqd/1121850irq/30-eth0_g0_07:42:160
1211080ksoftirqd/1121850irq/30-eth0_g0_10:00:330
1211020ksoftirqd/1121850irq/30-eth0_g0_11:18:031
1211020ksoftirqd/1121850irq/30-eth0_g0_09:37:351
1211020ksoftirqd/1121850irq/30-eth0_g0_08:11:191
1211010ksoftirqd/1121850irq/30-eth0_g0_07:40:271
121970ksoftirqd/1121850irq/30-eth0_g0_10:45:171
121930ksoftirqd/1121850irq/30-eth0_g0_11:11:581
121890ksoftirqd/1121850irq/30-eth0_g0_09:22:050
121890ksoftirqd/1121850irq/30-eth0_g0_09:22:050
217332840sleep0121850irq/30-eth0_g0_08:19:490
121840ksoftirqd/1121850irq/30-eth0_g0_12:31:510
121800ksoftirqd/1121850irq/30-eth0_g0_10:57:540
121790ksoftirqd/1121850irq/30-eth0_g0_12:07:340
121790ksoftirqd/1121850irq/30-eth0_g0_12:07:340
305382780sleep0121850irq/30-eth0_g0_11:17:520
71662760sleep0121850irq/30-eth0_g0_10:20:140
157582750sleep0121850irq/30-eth0_g0_10:41:220
201282730sleep0121850irq/30-eth0_g0_12:10:160
178072730chrt121850irq/30-eth0_g0_08:10:010
121720ksoftirqd/1237162sleep009:42:250
295992690sleep0121850irq/30-eth0_g0_09:56:130
277222690sleep1121850irq/30-eth0_g0_09:51:561
121690ksoftirqd/142262sleep011:32:330
121680ksoftirqd/1312682chrt08:41:490
5522670sleep1121750irq/29-eth0_g0_10:05:081
121660ksoftirqd/1259552sleep011:06:000
121660ksoftirqd/1259552sleep011:06:000
89042650sleep0121850irq/30-eth0_g0_09:05:490
28562630sleep1121850irq/30-eth0_g0_11:29:581
12902620sleep0121850irq/30-eth0_g0_08:48:230
121620ksoftirqd/1218352chrt12:15:090
108192620sleep0121850irq/30-eth0_g0_11:49:100
108192620sleep0121850irq/30-eth0_g0_11:49:100
216892610sleep0121850irq/30-eth0_g0_09:37:330
221952570sleep1121850irq/30-eth0_g0_08:20:071
181692570sleep0121750irq/29-eth0_g0_10:47:470
136122570sleep0121850irq/30-eth0_g0_11:55:080
121850570irq/30-eth0_g0_2533699cyclictest08:55:120
121850570irq/30-eth0_g0_2533699cyclictest08:55:120
121550ksoftirqd/1121850irq/30-eth0_g0_11:43:461
121550ksoftirqd/1121850irq/30-eth0_g0_10:35:081
121550ksoftirqd/1121750irq/29-eth0_g0_10:06:010
121540ksoftirqd/1121850irq/30-eth0_g0_10:33:561
121540ksoftirqd/1121850irq/30-eth0_g0_07:38:091
62312510sleep0121850irq/30-eth0_g0_09:00:050
25336995119cyclictest30252-21grep07:20:110
121750510irq/29-eth0_g0_2533699cyclictest11:11:040
121750510irq/29-eth0_g0_2533699cyclictest08:01:240
121750510irq/29-eth0_g0_2533699cyclictest08:01:240
121750500irq/29-eth0_g0_2533699cyclictest11:25:080
121500ksoftirqd/1121850irq/30-eth0_g0_07:17:401
270962490chrt121850irq/30-eth0_g0_08:31:350
121490ksoftirqd/1121850irq/30-eth0_g0_11:52:061
310242480sleep0121850irq/30-eth0_g0_12:37:360
2533699481cyclictest1932-21runrttasks11:21:130
121850480irq/30-eth0_g0_2533699cyclictest11:43:130
121750480irq/29-eth0_g0_2533699cyclictest12:23:250
121750480irq/29-eth0_g0_2533699cyclictest09:30:000
121750480irq/29-eth0_g0_2533699cyclictest09:25:040
121750480irq/29-eth0_g0_2533699cyclictest08:51:280
121850470irq/30-eth0_g0_2533699cyclictest07:39:500
121470ksoftirqd/1121750irq/29-eth0_g0_12:04:101
121470ksoftirqd/1121750irq/29-eth0_g0_10:44:221
25336994625cyclictest0-21swapper/009:13:570
185682460sleep1121750irq/29-eth0_g0_09:30:041
134482460chrt121850irq/30-eth0_g0_07:59:361
121850460irq/30-eth0_g0_2533699cyclictest07:12:240
121750460irq/29-eth0_g0_2533699cyclictest09:18:270
121750460irq/29-eth0_g0_25334-21cyclictest07:09:500
121460ksoftirqd/1121750irq/29-eth0_g0_11:47:021
121460ksoftirqd/1121750irq/29-eth0_g0_11:47:021
121460ksoftirqd/1121750irq/29-eth0_g0_07:26:471
121460ksoftirqd/1121750irq/29-eth0_g0_07:26:471
111152460sleep1121750irq/29-eth0_g0_09:11:241
2533699459cyclictest32360-21unixbench_singl07:25:140
2533699459cyclictest32360-21unixbench_singl07:25:140
121850450irq/30-eth0_g0_2533699cyclictest10:14:070
121750450irq/29-eth0_g0_2533699cyclictest12:28:010
121750450irq/29-eth0_g0_2533699cyclictest11:50:420
121750450irq/29-eth0_g0_2533699cyclictest10:53:090
121750450irq/29-eth0_g0_2533699cyclictest07:57:300
121750450irq/29-eth0_g0_2533699cyclictest07:51:160
121450ksoftirqd/12533699cyclictest10:35:060
121450ksoftirqd/1121750irq/29-eth0_g0_11:56:121
121850440irq/30-eth0_g0_470-21kworker/1:110:18:061
121850440irq/30-eth0_g0_2533699cyclictest09:48:030
121750440irq/29-eth0_g0_2533699cyclictest10:32:060
121440ksoftirqd/12533799cyclictest10:50:551
121440ksoftirqd/1121850irq/30-eth0_g0_11:21:361
121440ksoftirqd/1121850irq/30-eth0_g0_09:17:201
121440ksoftirqd/1121750irq/29-eth0_g0_12:31:281
121440ksoftirqd/1121750irq/29-eth0_g0_12:19:071
121850430irq/30-eth0_g0_2533699cyclictest12:00:240
121750430irq/29-eth0_g0_2533699cyclictest11:00:470
121750430irq/29-eth0_g0_2533699cyclictest10:15:110
121430ksoftirqd/12533699cyclictest10:28:450
121430ksoftirqd/12533699cyclictest08:19:570
121850420irq/30-eth0_g0_470-21kworker/1:112:08:361
121850420irq/30-eth0_g0_470-21kworker/1:112:08:361
121420ksoftirqd/12533699cyclictest07:15:080
298192410sleep1121850irq/30-eth0_g0_09:57:061
121850410irq/30-eth0_g0_470-21kworker/1:109:22:541
121850410irq/30-eth0_g0_470-21kworker/1:109:22:541
121410ksoftirqd/12533699cyclictest11:39:260
121410ksoftirqd/12533699cyclictest08:25:060
121410ksoftirqd/12533699cyclictest07:47:100
121410ksoftirqd/1121750irq/29-eth0_g0_09:25:131
2533799402cyclictest26287-21memory08:30:061
121400ksoftirqd/12533699cyclictest08:08:220
121400ksoftirqd/1121850irq/30-eth0_g0_09:50:020
121400ksoftirqd/1121750irq/29-eth0_g0_11:04:541
121400ksoftirqd/1121750irq/29-eth0_g0_11:04:541
121400ksoftirqd/1121750irq/29-eth0_g0_08:58:021
121400ksoftirqd/1121750irq/29-eth0_g0_08:58:021
2533799391cyclictest9921-21diskmemload12:29:501
121850390irq/30-eth0_g0_31211-21seq07:23:391
121390ksoftirqd/1121750irq/29-eth0_g0_12:37:351
121390ksoftirqd/1121750irq/29-eth0_g0_09:46:411
121390ksoftirqd/1121750irq/29-eth0_g0_09:40:101
121390ksoftirqd/1121750irq/29-eth0_g0_08:49:361
121390ksoftirqd/1121750irq/29-eth0_g0_08:39:451
2533799381cyclictest30758-21unixbench_multi08:40:131
121850380irq/30-eth0_g0_470-21kworker/1:111:36:261
121850380irq/30-eth0_g0_23468-21runrttasks07:05:041
121380ksoftirqd/1121750irq/29-eth0_g0_10:28:251
2533799372cyclictest9825-21memory07:50:061
2533799371cyclictest88142sleep107:47:321
2533799371cyclictest24013-21/usr/sbin/munin12:20:101
121850370irq/30-eth0_g0_470-21kworker/1:112:10:541
121850370irq/30-eth0_g0_470-21kworker/1:111:29:341
2533799362cyclictest2051-21lldpd08:18:161
2533799361cyclictest270742sleep107:13:351
2533799361cyclictest1784-21/usr/sbin/munin08:50:041
2533799361cyclictest15632sleep107:30:061
2533799360cyclictest0-21swapper/110:03:491
121850360irq/30-eth0_g0_24593-21unixbench_multi08:25:121
121750360irq/29-eth0_g0_0-21swapper/109:05:071
121360ksoftirqd/1121750irq/29-eth0_g0_08:05:121
2533799351cyclictest13893-21latency08:00:031
2533799351cyclictest13893-21latency08:00:031
121750350irq/29-eth0_g0_2566-21runrttasks09:03:411
121300ksoftirqd/1121850irq/30-eth0_g0_07:30:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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