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2025-05-09 - 07:21

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 Fri May 09, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
182612580sleep1121750irq/30-eth0_g0_19:49:231
249142500chrt121650irq/29-eth0_g0_22:27:421
121650500irq/29-eth0_g0_31ksoftirqd/000:09:440
121650490irq/29-eth0_g0_31ksoftirqd/022:40:200
175282470sleep0121650irq/29-eth0_g0_21:57:160
121650470irq/29-eth0_g0_31ksoftirqd/023:27:450
121650470irq/29-eth0_g0_1893-21runrttasks20:41:590
121650470irq/29-eth0_g0_1893-21runrttasks20:41:590
121650470irq/29-eth0_g0_13-21kworker/0:121:14:090
121470ksoftirqd/1121750irq/30-eth0_g0_21:40:291
121470ksoftirqd/1121750irq/30-eth0_g0_21:40:291
121470ksoftirqd/1121750irq/30-eth0_g0_19:19:400
121460ksoftirqd/1121650irq/29-eth0_g0_21:36:021
121460ksoftirqd/1121650irq/29-eth0_g0_00:38:451
121650450irq/29-eth0_g0_1893-21runrttasks19:08:040
121650450irq/29-eth0_g0_13-21kworker/0:123:10:220
121750440irq/30-eth0_g0_23024-21runrttasks00:31:261
121650440irq/29-eth0_g0_31ksoftirqd/022:54:370
121650440irq/29-eth0_g0_31ksoftirqd/022:21:020
121650440irq/29-eth0_g0_13-21kworker/0:123:57:020
121650440irq/29-eth0_g0_13-21kworker/0:122:54:090
121650430irq/29-eth0_g0_31ksoftirqd/021:20:270
121650430irq/29-eth0_g0_13-21kworker/0:122:47:490
121650430irq/29-eth0_g0_0-21swapper/022:04:400
121430ksoftirqd/1121750irq/30-eth0_g0_21:11:371
121750420irq/30-eth0_g0_121ksoftirqd/123:58:301
121650420irq/29-eth0_g0_31ksoftirqd/023:44:410
121650420irq/29-eth0_g0_31ksoftirqd/023:14:380
121650420irq/29-eth0_g0_31ksoftirqd/022:35:240
121650420irq/29-eth0_g0_31ksoftirqd/000:32:590
121650420irq/29-eth0_g0_13-21kworker/0:122:28:560
121650420irq/29-eth0_g0_13-21kworker/0:121:42:050
121650420irq/29-eth0_g0_13-21kworker/0:121:42:050
121650420irq/29-eth0_g0_121ksoftirqd/121:48:010
121650420irq/29-eth0_g0_121ksoftirqd/121:48:010
121650420irq/29-eth0_g0_0-21swapper/022:29:460
121750410irq/30-eth0_g0_1219-21kworker/1:222:11:441
121650410irq/29-eth0_g0_13-21kworker/0:123:22:330
121650410irq/29-eth0_g0_13-21kworker/0:122:03:560
121650410irq/29-eth0_g0_13-21kworker/0:121:35:030
121410ksoftirqd/1121650irq/29-eth0_g0_23:48:021
166892400sleep016703-21unixbench_singl00:04:450
121650400irq/29-eth0_g0_13-21kworker/0:123:30:300
121650400irq/29-eth0_g0_13-21kworker/0:121:26:170
121400ksoftirqd/1121650irq/29-eth0_g0_23:09:421
121400ksoftirqd/1121650irq/29-eth0_g0_22:43:181
121750390irq/30-eth0_g0_26065-21sshd22:31:501
121750390irq/30-eth0_g0_1219-21kworker/1:222:47:481
121650390irq/29-eth0_g0_5454-21diskmemload21:30:170
121650390irq/29-eth0_g0_5454-21diskmemload21:30:170
121650390irq/29-eth0_g0_31ksoftirqd/022:19:230
121650390irq/29-eth0_g0_31ksoftirqd/021:15:010
121650390irq/29-eth0_g0_26226-21zcat20:19:390
121650390irq/29-eth0_g0_13-21kworker/0:123:50:170
121650390irq/29-eth0_g0_13-21kworker/0:123:42:410
121650390irq/29-eth0_g0_13-21kworker/0:123:35:320
121650390irq/29-eth0_g0_13-21kworker/0:123:00:270
121650390irq/29-eth0_g0_13-21kworker/0:100:16:100
121750380irq/30-eth0_g0_25511-21taskset20:18:121
121750380irq/30-eth0_g0_1219-21kworker/1:222:59:341
121750380irq/30-eth0_g0_1219-21kworker/1:221:48:101
121750380irq/30-eth0_g0_1219-21kworker/1:221:48:101
121750380irq/30-eth0_g0_1219-21kworker/1:200:27:441
121750380irq/30-eth0_g0_1219-21kworker/1:200:16:321
121750380irq/30-eth0_g0_0-21swapper/122:08:051
121750380irq/30-eth0_g0_0-21swapper/121:19:591
121650380irq/29-eth0_g0_9175-21unixbench_multi19:09:420
121650380irq/29-eth0_g0_31ksoftirqd/021:09:230
121650380irq/29-eth0_g0_29924-21mailstats20:34:400
121650380irq/29-eth0_g0_1893-21runrttasks20:03:390
121650380irq/29-eth0_g0_15068-21ls23:59:400
121650380irq/29-eth0_g0_13-21kworker/0:123:05:430
121650380irq/29-eth0_g0_0-21swapper/019:48:500
121380ksoftirqd/1121650irq/29-eth0_g0_23:34:451
320662370sleep11889-21crond22:55:221
121750370irq/30-eth0_g0_7981-21unixbench_singl19:04:421
121750370irq/30-eth0_g0_13992-21sendmail_mailst19:29:421
121750370irq/30-eth0_g0_13477-21munin-run23:54:221
121750370irq/30-eth0_g0_12920-21grep19:24:451
121750370irq/30-eth0_g0_1219-21kworker/1:221:57:271
121750370irq/30-eth0_g0_1219-21kworker/1:200:23:501
121750370irq/30-eth0_g0_0-21swapper/123:33:131
121650370irq/29-eth0_g0_983-21ntpdc20:49:370
121650370irq/29-eth0_g0_31ksoftirqd/000:34:370
121650370irq/29-eth0_g0_21477-21mailstats00:24:440
121650370irq/29-eth0_g0_2053-21lldpd20:55:030
121650370irq/29-eth0_g0_16356-21proc_pri19:39:390
121650370irq/29-eth0_g0_13-21kworker/0:122:10:160
121650370irq/29-eth0_g0_13-21kworker/0:121:53:400
121370ksoftirqd/1121750irq/30-eth0_g0_00:04:011
121750360irq/30-eth0_g0_1219-21kworker/1:223:22:321
121750360irq/30-eth0_g0_1219-21kworker/1:223:17:331
121750360irq/30-eth0_g0_1219-21kworker/1:222:19:361
121750360irq/30-eth0_g0_1219-21kworker/1:222:14:451
121750360irq/30-eth0_g0_1219-21kworker/1:222:03:071
121750360irq/30-eth0_g0_1219-21kworker/1:221:53:311
121750360irq/30-eth0_g0_1219-21kworker/1:221:32:541
121750360irq/30-eth0_g0_1219-21kworker/1:221:32:541
121750360irq/30-eth0_g0_1219-21kworker/1:221:16:111
121650360irq/29-eth0_g0_28288-21df20:29:350
121650360irq/29-eth0_g0_25104-21unixbench_multi20:14:420
121650360irq/29-eth0_g0_1893-21runrttasks20:59:280
121650360irq/29-eth0_g0_1893-21runrttasks20:45:170
121650360irq/29-eth0_g0_1893-21runrttasks20:27:510
121650360irq/29-eth0_g0_1893-21runrttasks19:26:000
121650360irq/29-eth0_g0_13455-21cpu19:29:340
121650360irq/29-eth0_g0_13-21kworker/0:100:19:330
121650360irq/29-eth0_g0_10072-21missed_timers19:14:380
121750350irq/30-eth0_g0_603-21/usr/sbin/munin20:49:321
121750350irq/30-eth0_g0_30577-21ps22:49:431
121750350irq/30-eth0_g0_1219-21kworker/1:223:43:481
121750350irq/30-eth0_g0_1219-21kworker/1:223:04:481
121750350irq/30-eth0_g0_1219-21kworker/1:221:24:431
121750350irq/30-eth0_g0_1219-21kworker/1:200:07:301
121650350irq/29-eth0_g0_23262-21cpu20:09:350
121650350irq/29-eth0_g0_1893-21runrttasks20:05:590
121650350irq/29-eth0_g0_1893-21runrttasks19:50:180
121650350irq/29-eth0_g0_14942-21latency19:34:380
121650350irq/29-eth0_g0_1219-21kworker/1:200:12:461
121750340irq/30-eth0_g0_26933-21/usr/sbin/munin20:24:351
121650340irq/29-eth0_g0_0-21swapper/019:54:360
121340ksoftirqd/1121650irq/29-eth0_g0_23:24:471
121340ksoftirqd/1121650irq/29-eth0_g0_19:59:421
8455993327cyclictest9837-21df_abs19:14:351
121750320irq/30-eth0_g0_27511-21munin-run22:39:231
121750320irq/30-eth0_g0_22709-21unixbench_singl20:04:441
121750320irq/30-eth0_g0_15231-21sendmail_mailtr19:34:431
121750320irq/30-eth0_g0_1219-21kworker/1:221:01:551
121750320irq/30-eth0_g0_0-21swapper/120:32:331
121320ksoftirqd/119202-21taskset19:51:061
845599311cyclictest4788-21ps21:04:441
121750310irq/30-eth0_g0_16440-21sendmail_mailst19:39:411
121750310irq/30-eth0_g0_0-21swapper/120:44:181
121750310irq/30-eth0_g0_0-21swapper/120:44:181
121750310irq/30-eth0_g0_0-21swapper/120:12:431
121650310irq/29-eth0_g0_32677-21runrttasks20:46:021
121650310irq/29-eth0_g0_30046-21taskset20:34:411
121650310irq/29-eth0_g0_11393-21runrttasks19:19:361
121310ksoftirqd/12823-21taskset20:57:191
121310ksoftirqd/1121650irq/29-eth0_g0_19:54:341
121750300irq/30-eth0_g0_9148-21sort19:09:421
8455992822cyclictest25828-21df_abs20:19:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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