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2026-08-17 - 04:43

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 Aug 17, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
131721090sleep1121650irq/29-eth0_g0_23:50:481
285692830chrt121750irq/30-eth0_g0_23:27:270
300812760chrt121750irq/30-eth0_g0_23:35:490
121740ksoftirqd/1121750irq/30-eth0_g0_00:21:591
121730ksoftirqd/1321352chrt19:17:040
21392690sleep1121750irq/30-eth0_g0_21:41:461
121520ksoftirqd/1121750irq/30-eth0_g0_22:52:041
121490ksoftirqd/1121650irq/29-eth0_g0_23:36:510
121750480irq/30-eth0_g0_28846-21munin-run19:06:341
121470ksoftirqd/1121750irq/30-eth0_g0_22:47:531
121470ksoftirqd/1121650irq/29-eth0_g0_21:07:061
23332460sleep0121650irq/29-eth0_g0_23:53:070
121460ksoftirqd/1121750irq/30-eth0_g0_22:59:441
121460ksoftirqd/1121650irq/29-eth0_g0_21:39:051
121460ksoftirqd/1121650irq/29-eth0_g0_21:39:051
121460ksoftirqd/1121650irq/29-eth0_g0_20:43:101
121460ksoftirqd/1121650irq/29-eth0_g0_20:43:101
121460ksoftirqd/1121650irq/29-eth0_g0_19:52:121
121460ksoftirqd/1121650irq/29-eth0_g0_19:23:341
121460ksoftirqd/1121650irq/29-eth0_g0_19:19:271
121460ksoftirqd/1121650irq/29-eth0_g0_19:14:121
121460ksoftirqd/1121650irq/29-eth0_g0_00:35:330
153422450sleep0121650irq/29-eth0_g0_22:35:190
121750450irq/30-eth0_g0_1219-21kworker/1:222:31:291
121750450irq/30-eth0_g0_1219-21kworker/1:222:31:291
121650450irq/29-eth0_g0_121ksoftirqd/120:16:551
121450ksoftirqd/1121750irq/30-eth0_g0_23:31:131
121450ksoftirqd/1121750irq/30-eth0_g0_21:33:521
121450ksoftirqd/1121650irq/29-eth0_g0_21:21:011
121440ksoftirqd/1121750irq/30-eth0_g0_22:36:561
121440ksoftirqd/1121650irq/29-eth0_g0_22:47:200
121440ksoftirqd/1121650irq/29-eth0_g0_22:17:371
121440ksoftirqd/1121650irq/29-eth0_g0_22:14:460
121650430irq/29-eth0_g0_31729-21ls23:41:470
121430ksoftirqd/1121750irq/30-eth0_g0_21:51:540
121430ksoftirqd/1121750irq/30-eth0_g0_00:12:360
121430ksoftirqd/1121650irq/29-eth0_g0_22:58:360
121430ksoftirqd/1121650irq/29-eth0_g0_21:28:311
121430ksoftirqd/1121650irq/29-eth0_g0_21:06:161
2884999429cyclictest121750irq/30-eth0_g0_23:09:351
2884999422cyclictest3325-21grep19:31:551
121750420irq/30-eth0_g0_1219-21kworker/1:200:26:441
121650420irq/29-eth0_g0_199592sleep022:52:050
121650420irq/29-eth0_g0_1964-21runrttasks20:22:590
121420ksoftirqd/1121750irq/30-eth0_g0_21:15:441
2884999411cyclictest25769-21/usr/sbin/munin23:16:511
121750410irq/30-eth0_g0_1219-21kworker/1:223:58:411
121750410irq/30-eth0_g0_1219-21kworker/1:221:58:501
121750410irq/30-eth0_g0_1219-21kworker/1:200:31:511
121750410irq/30-eth0_g0_1219-21kworker/1:200:09:531
121650410irq/29-eth0_g0_31ksoftirqd/021:12:180
121650410irq/29-eth0_g0_31ksoftirqd/021:08:120
121650410irq/29-eth0_g0_31ksoftirqd/000:08:010
121650410irq/29-eth0_g0_1964-21runrttasks20:12:290
121650410irq/29-eth0_g0_1964-21runrttasks19:49:050
121650410irq/29-eth0_g0_1964-21runrttasks19:03:100
121650410irq/29-eth0_g0_13-21kworker/0:121:20:400
121410ksoftirqd/1121750irq/30-eth0_g0_21:56:460
121410ksoftirqd/1121650irq/29-eth0_g0_00:06:211
2884999401cyclictest25822-21diskmemload21:21:501
121750400irq/30-eth0_g0_1219-21kworker/1:222:32:461
121750400irq/30-eth0_g0_10835-21if_err_eth022:16:480
121750400irq/30-eth0_g0_0-21swapper/122:46:321
121650400irq/29-eth0_g0_2884899cyclictest22:29:490
121650400irq/29-eth0_g0_2884899cyclictest22:29:490
121650400irq/29-eth0_g0_1964-21runrttasks23:47:320
121650400irq/29-eth0_g0_13-21kworker/0:123:59:520
121650400irq/29-eth0_g0_13-21kworker/0:123:23:430
121650400irq/29-eth0_g0_13-21kworker/0:122:43:150
121650400irq/29-eth0_g0_13-21kworker/0:122:40:070
121650400irq/29-eth0_g0_13-21kworker/0:100:30:410
121650400irq/29-eth0_g0_13-21kworker/0:100:23:340
121650400irq/29-eth0_g0_0-21swapper/021:41:550
121400ksoftirqd/1121750irq/30-eth0_g0_00:17:340
291472390sleep1121650irq/29-eth0_g0_23:31:471
2884999392cyclictest5227-21unixbench_singl21:51:561
121750390irq/30-eth0_g0_31ksoftirqd/021:21:430
121750390irq/30-eth0_g0_121ksoftirqd/123:16:111
121750390irq/30-eth0_g0_121ksoftirqd/123:16:111
121750390irq/30-eth0_g0_121ksoftirqd/100:12:141
121750390irq/30-eth0_g0_0-21swapper/122:04:101
121650390irq/29-eth0_g0_31ksoftirqd/020:41:490
121650390irq/29-eth0_g0_31ksoftirqd/020:41:490
121650390irq/29-eth0_g0_13-21kworker/0:122:26:050
121390ksoftirqd/1121750irq/30-eth0_g0_23:10:090
121390ksoftirqd/1121750irq/30-eth0_g0_21:46:430
121390ksoftirqd/1121750irq/30-eth0_g0_21:35:210
121390ksoftirqd/1121750irq/30-eth0_g0_21:27:130
121390ksoftirqd/1121750irq/30-eth0_g0_20:59:450
121390ksoftirqd/1121750irq/30-eth0_g0_19:51:460
121390ksoftirqd/1121750irq/30-eth0_g0_19:27:420
121390ksoftirqd/1121650irq/29-eth0_g0_23:12:220
121390ksoftirqd/1121650irq/29-eth0_g0_23:12:220
2884999381cyclictest12983-21find20:11:541
121750380irq/30-eth0_g0_121ksoftirqd/123:40:071
121750380irq/30-eth0_g0_121ksoftirqd/122:24:351
121750380irq/30-eth0_g0_0-21swapper/123:43:401
121750380irq/30-eth0_g0_0-21swapper/123:02:431
121750380irq/30-eth0_g0_0-21swapper/100:19:251
121650380irq/29-eth0_g0_9454-21unixbench_singl19:56:590
121650380irq/29-eth0_g0_1986-21cat21:41:340
121650380irq/29-eth0_g0_1986-21cat21:41:340
121650380irq/29-eth0_g0_1964-21runrttasks00:02:320
121650380irq/29-eth0_g0_13-21kworker/0:123:04:200
121650380irq/29-eth0_g0_11627-21ntp_states20:06:530
121380ksoftirqd/1121750irq/30-eth0_g0_23:20:010
121380ksoftirqd/1121750irq/30-eth0_g0_22:10:290
121380ksoftirqd/1121750irq/30-eth0_g0_22:10:290
121380ksoftirqd/1121750irq/30-eth0_g0_22:03:000
2884999372cyclictest9914-21cat20:01:341
2884999371cyclictest51632sleep119:41:471
2884999371cyclictest25822-21diskmemload22:06:531
2884999371cyclictest25822-21diskmemload22:06:531
121750370irq/30-eth0_g0_3571-21ls21:46:491
121750370irq/30-eth0_g0_17800-21proc_pri20:31:541
121750370irq/30-eth0_g0_1219-21kworker/1:223:24:531
121650370irq/29-eth0_g0_32615-21/usr/sbin/munin19:21:540
121650370irq/29-eth0_g0_30322-21/usr/sbin/munin19:11:450
121650370irq/29-eth0_g0_14302-21grep20:16:570
2884999361cyclictest4511-21tail19:36:561
2884999361cyclictest15219-21missed_timers20:21:511
2884999361cyclictest11455-21chrt20:06:491
2884999360cyclictest0-21swapper/122:11:531
121750360irq/30-eth0_g0_1219-21kworker/1:223:51:491
121650360irq/29-eth0_g0_3046-21taskset19:31:500
121650360irq/29-eth0_g0_22343-21df_abs20:51:470
121650360irq/29-eth0_g0_21479-21proc_pri20:46:520
121650360irq/29-eth0_g0_1964-21runrttasks21:06:020
2884999351cyclictest7531-21date19:51:351
2884999351cyclictest171112sleep120:30:021
2884999351cyclictest10639-21tail20:01:561
121650350irq/29-eth0_g0_31ksoftirqd/020:01:510
121650350irq/29-eth0_g0_1964-21runrttasks19:39:190
121650350irq/29-eth0_g0_1964-21runrttasks19:09:330
121650350irq/29-eth0_g0_16815-21unixbench_singl20:26:570
121350ksoftirqd/1121750irq/30-eth0_g0_19:43:020
2884999341cyclictest0-21swapper/120:50:241
121650340irq/29-eth0_g0_17590-21sort20:31:490
121340ksoftirqd/1121750irq/30-eth0_g0_19:31:341
2884999331cyclictest19159-21taskset20:36:561
2884999331cyclictest0-21swapper/120:56:571
121750330irq/30-eth0_g0_2884999cyclictest20:51:571
121650330irq/29-eth0_g0_0-21swapper/020:36:560
121750320irq/30-eth0_g0_0-21swapper/119:07:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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