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2025-11-11 - 16:55

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 all highest latencies:
System rack3slot5s.osadl.org (updated Tue Nov 11, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2840421050sleep1451850irq/30-eth0_g0_10:18:261
121880ksoftirqd/1451750irq/29-eth0_g0_09:19:450
137212560sleep0451850irq/30-eth0_g0_09:18:590
137212560sleep0451850irq/30-eth0_g0_09:18:590
121550ksoftirqd/1451850irq/30-eth0_g0_10:29:441
121540ksoftirqd/1451850irq/30-eth0_g0_11:43:231
121540ksoftirqd/1451850irq/30-eth0_g0_07:19:511
121510ksoftirqd/1451750irq/29-eth0_g0_07:41:401
142272500sleep0451850irq/30-eth0_g0_11:31:260
217042480sleep0451850irq/30-eth0_g0_12:02:430
221012460sleep1451750irq/29-eth0_g0_09:51:291
121460ksoftirqd/1451850irq/30-eth0_g0_09:59:420
121450ksoftirqd/1451750irq/29-eth0_g0_10:59:541
121440ksoftirqd/1451850irq/30-eth0_g0_09:09:420
121440ksoftirqd/1451750irq/29-eth0_g0_12:24:401
121440ksoftirqd/1451750irq/29-eth0_g0_12:04:021
121440ksoftirqd/1451750irq/29-eth0_g0_09:28:411
121440ksoftirqd/1451750irq/29-eth0_g0_07:24:521
451850430irq/30-eth0_g0_13-21kworker/0:110:39:560
451850430irq/30-eth0_g0_13-21kworker/0:110:25:090
451850430irq/30-eth0_g0_121ksoftirqd/111:19:270
146652430sleep1451750irq/29-eth0_g0_09:20:371
121430ksoftirqd/1451750irq/29-eth0_g0_07:49:421
451850420irq/30-eth0_g0_15948-21sed11:39:420
451850420irq/30-eth0_g0_13-21kworker/0:112:13:430
451850420irq/30-eth0_g0_13-21kworker/0:110:50:050
451850420irq/30-eth0_g0_13-21kworker/0:110:05:030
451850420irq/30-eth0_g0_13-21kworker/0:109:58:240
451850420irq/30-eth0_g0_0-21swapper/008:04:490
451750420irq/29-eth0_g0_10871-21unixbench_singl09:04:511
121420ksoftirqd/1451850irq/30-eth0_g0_11:50:170
451850410irq/30-eth0_g0_31ksoftirqd/011:55:110
451850410irq/30-eth0_g0_31ksoftirqd/009:36:300
451850410irq/30-eth0_g0_13-21kworker/0:112:37:360
451850410irq/30-eth0_g0_13-21kworker/0:112:23:280
451850410irq/30-eth0_g0_13-21kworker/0:111:28:450
451850410irq/30-eth0_g0_13-21kworker/0:111:05:400
451850410irq/30-eth0_g0_13-21kworker/0:110:38:510
451850410irq/30-eth0_g0_13-21kworker/0:110:13:320
451850410irq/30-eth0_g0_13-21kworker/0:110:13:320
451850410irq/30-eth0_g0_13-21kworker/0:109:45:200
451850410irq/30-eth0_g0_121ksoftirqd/110:16:100
451750410irq/29-eth0_g0_470-21kworker/1:109:12:521
451750410irq/29-eth0_g0_31ksoftirqd/009:25:580
451750410irq/29-eth0_g0_29987-21forks10:24:431
451750410irq/29-eth0_g0_13167-21cpu07:04:411
451750410irq/29-eth0_g0_13167-21cpu07:04:411
451750410irq/29-eth0_g0_121ksoftirqd/111:45:570
121410ksoftirqd/1451850irq/30-eth0_g0_12:19:280
451850400irq/30-eth0_g0_31ksoftirqd/009:39:490
451850400irq/30-eth0_g0_13-21kworker/0:112:31:200
451850400irq/30-eth0_g0_13-21kworker/0:112:28:310
451850400irq/30-eth0_g0_13-21kworker/0:111:23:530
451850400irq/30-eth0_g0_13-21kworker/0:111:10:330
451850400irq/30-eth0_g0_13-21kworker/0:111:10:330
451850400irq/30-eth0_g0_13-21kworker/0:109:50:550
451750400irq/29-eth0_g0_470-21kworker/1:112:18:361
451750400irq/29-eth0_g0_31ksoftirqd/009:32:260
451750400irq/29-eth0_g0_13650-21sendmail_mailqu07:04:490
451750400irq/29-eth0_g0_13650-21sendmail_mailqu07:04:490
451750400irq/29-eth0_g0_13-21kworker/0:111:37:480
121400ksoftirqd/1451750irq/29-eth0_g0_09:39:501
451850390irq/30-eth0_g0_13-21kworker/0:112:05:190
451850390irq/30-eth0_g0_13-21kworker/0:112:05:190
451850390irq/30-eth0_g0_13-21kworker/0:110:59:590
451850390irq/30-eth0_g0_13-21kworker/0:110:44:490
451750390irq/29-eth0_g0_13-21kworker/0:110:20:290
451750390irq/29-eth0_g0_0-21swapper/111:57:231
121390ksoftirqd/1451750irq/29-eth0_g0_08:10:081
451850380irq/30-eth0_g0_13-21kworker/0:110:57:420
451850380irq/30-eth0_g0_13-21kworker/0:110:30:430
451750380irq/29-eth0_g0_470-21kworker/1:112:21:111
451750380irq/29-eth0_g0_470-21kworker/1:109:58:451
451750380irq/29-eth0_g0_470-21kworker/1:109:30:101
451750380irq/29-eth0_g0_29022-21latency_hist08:09:281
451750380irq/29-eth0_g0_23576-21ntpq12:09:461
451750380irq/29-eth0_g0_2034-21ps08:29:491
451750380irq/29-eth0_g0_1927-21sshd10:56:091
451750380irq/29-eth0_g0_0-21swapper/112:06:381
451750380irq/29-eth0_g0_0-21swapper/112:06:381
451750380irq/29-eth0_g0_0-21swapper/111:29:151
121380ksoftirqd/1451750irq/29-eth0_g0_11:35:491
121380ksoftirqd/1451750irq/29-eth0_g0_10:36:461
121380ksoftirqd/1451750irq/29-eth0_g0_10:04:361
121380ksoftirqd/1451750irq/29-eth0_g0_07:15:031
451750370irq/29-eth0_g0_8910-21latency_hist08:59:291
451750370irq/29-eth0_g0_5976-21unixbench_singl08:44:541
451750370irq/29-eth0_g0_470-21kworker/1:112:31:391
451750370irq/29-eth0_g0_470-21kworker/1:111:15:181
451750370irq/29-eth0_g0_470-21kworker/1:109:14:431
451750370irq/29-eth0_g0_470-21kworker/1:109:14:431
451750370irq/29-eth0_g0_32178-21grep08:19:501
451750370irq/29-eth0_g0_20608-21df_abs07:34:411
451750370irq/29-eth0_g0_0-21swapper/111:29:561
121370ksoftirqd/1451750irq/29-eth0_g0_08:49:431
451850360irq/30-eth0_g0_4355-21ls08:39:440
451750360irq/29-eth0_g0_3502-21unixbench_singl08:34:501
451750360irq/29-eth0_g0_30962-21grep08:14:511
451750360irq/29-eth0_g0_29715-21ntp_states12:34:481
451750360irq/29-eth0_g0_28836-21latency10:19:441
451750360irq/29-eth0_g0_23646-21unixbench_singl07:44:521
451750360irq/29-eth0_g0_18184-21unixbench_multi09:34:521
451750360irq/29-eth0_g0_14722-21netstat07:09:451
451750360irq/29-eth0_g0_0-21swapper/111:52:381
451750360irq/29-eth0_g0_0-21swapper/111:46:001
451750360irq/29-eth0_g0_0-21swapper/110:50:421
451750360irq/29-eth0_g0_0-21swapper/110:11:451
451750360irq/29-eth0_g0_0-21swapper/110:11:451
121360ksoftirqd/1451850irq/30-eth0_g0_08:23:550
451750350irq/29-eth0_g0_9648-21unixbench_singl08:59:531
451750350irq/29-eth0_g0_4558-21awk08:39:481
451750350irq/29-eth0_g0_2684-21seq10:44:461
451750350irq/29-eth0_g0_23920-21irqstats09:59:451
451750350irq/29-eth0_g0_19805-21taskset07:29:501
451750350irq/29-eth0_g0_1955-21runrttasks08:29:180
451750350irq/29-eth0_g0_1955-21runrttasks07:37:080
451750350irq/29-eth0_g0_1955-21runrttasks07:28:190
451750350irq/29-eth0_g0_1362-21missed_timers10:39:461
451750350irq/29-eth0_g0_0-21swapper/111:21:481
451750350irq/29-eth0_g0_0-21swapper/108:02:481
121350ksoftirqd/1451750irq/29-eth0_g0_09:44:571
451750340irq/29-eth0_g0_1955-21runrttasks07:21:180
451750340irq/29-eth0_g0_0-21swapper/111:11:131
451750340irq/29-eth0_g0_0-21swapper/111:11:131
451850330irq/30-eth0_g0_0-21swapper/008:34:460
451750330irq/29-eth0_g0_525-21if_eth008:24:441
451750330irq/29-eth0_g0_26572-21ls07:59:291
451750330irq/29-eth0_g0_25788-21ntpdc07:54:490
451750330irq/29-eth0_g0_1955-21runrttasks08:48:350
451750330irq/29-eth0_g0_1955-21runrttasks08:14:120
451750330irq/29-eth0_g0_1955-21runrttasks08:04:000
451750330irq/29-eth0_g0_1955-21runrttasks07:17:350
451750330irq/29-eth0_g0_11312-21diskmemload11:05:341
451850320irq/30-eth0_g0_30380-21df08:14:410
451850320irq/30-eth0_g0_10175-21/usr/sbin/munin09:04:470
451850320irq/30-eth0_g0_0-21swapper/007:09:390
451750320irq/29-eth0_g0_1955-21runrttasks07:50:540
451750310irq/29-eth0_g0_1955-21runrttasks09:00:140
451750310irq/29-eth0_g0_1955-21runrttasks08:52:360
451750310irq/29-eth0_g0_1955-21runrttasks08:31:290
451750310irq/29-eth0_g0_1955-21runrttasks07:31:180
14263993125cyclictest22950-21/usr/sbin/munin07:44:540
451850300irq/30-eth0_g0_8887-21latency_hist08:59:290
451750300irq/29-eth0_g0_0-21swapper/007:39:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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