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2026-09-20 - 17:55

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
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 Sep 20, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2287921540sleep1121650irq/29-eth0_g0_11:31:311
1211030ksoftirqd/1121750irq/30-eth0_g0_10:30:281
184112780sleep1121750irq/30-eth0_g0_09:00:361
184112780sleep1121750irq/30-eth0_g0_09:00:361
259692750sleep0121650irq/29-eth0_g0_09:32:130
257262720sleep0121650irq/29-eth0_g0_11:45:170
121720ksoftirqd/1121650irq/29-eth0_g0_09:35:361
143142670sleep1121750irq/30-eth0_g0_08:45:281
61282610sleep1121750irq/30-eth0_g0_08:10:351
121570ksoftirqd/1273942sleep009:39:310
108492570chrt121750irq/30-eth0_g0_10:44:021
121540ksoftirqd/1121750irq/30-eth0_g0_10:50:371
73642480sleep0121650irq/29-eth0_g0_10:30:180
121480ksoftirqd/1228242sleep011:30:510
121750470irq/30-eth0_g0_21984-21ls11:30:131
121460ksoftirqd/1121750irq/30-eth0_g0_12:15:581
121650450irq/29-eth0_g0_31ksoftirqd/011:40:350
121650450irq/29-eth0_g0_20951-21forks07:00:290
121450ksoftirqd/1121650irq/29-eth0_g0_11:56:351
121440ksoftirqd/1121750irq/30-eth0_g0_10:25:101
121440ksoftirqd/1121750irq/30-eth0_g0_10:25:101
121750430irq/30-eth0_g0_1219-21kworker/1:210:55:271
121750430irq/30-eth0_g0_1219-21kworker/1:210:05:341
121750430irq/30-eth0_g0_121ksoftirqd/111:45:291
121650430irq/29-eth0_g0_31ksoftirqd/009:55:280
121430ksoftirqd/1121750irq/30-eth0_g0_10:15:581
121430ksoftirqd/1121650irq/29-eth0_g0_12:05:400
254912420sleep1121650irq/29-eth0_g0_11:43:291
2192099421cyclictest7183-21ps08:15:311
121750420irq/30-eth0_g0_1219-21kworker/1:212:30:061
121750420irq/30-eth0_g0_1219-21kworker/1:209:32:351
121750420irq/30-eth0_g0_1219-21kworker/1:209:22:391
121650420irq/29-eth0_g0_31ksoftirqd/010:00:320
121650420irq/29-eth0_g0_1964-21runrttasks08:25:520
121650420irq/29-eth0_g0_1964-21runrttasks07:58:430
121650420irq/29-eth0_g0_13-21kworker/0:111:11:070
121650420irq/29-eth0_g0_13-21kworker/0:109:47:170
121420ksoftirqd/1121650irq/29-eth0_g0_09:19:131
121750410irq/30-eth0_g0_23237-21taskset07:10:241
121750410irq/30-eth0_g0_1219-21kworker/1:211:09:461
121750410irq/30-eth0_g0_1219-21kworker/1:211:09:461
121650410irq/29-eth0_g0_30599-21timerandwakeup09:50:330
121650410irq/29-eth0_g0_13-21kworker/0:110:25:340
121650410irq/29-eth0_g0_121ksoftirqd/112:01:261
121650410irq/29-eth0_g0_121ksoftirqd/112:01:261
2192099401cyclictest691-21grep10:00:351
121750400irq/30-eth0_g0_20248-21egrep09:10:251
121750400irq/30-eth0_g0_121ksoftirqd/112:05:231
121750400irq/30-eth0_g0_121ksoftirqd/110:15:131
121650400irq/29-eth0_g0_31ksoftirqd/009:05:120
121650400irq/29-eth0_g0_31ksoftirqd/009:05:120
121650400irq/29-eth0_g0_13-21kworker/0:110:46:310
121650400irq/29-eth0_g0_13-21kworker/0:110:44:250
34332390sleep0121650irq/29-eth0_g0_10:13:130
2192099391cyclictest15840-21awk08:50:341
2192099391cyclictest11490-21proc_pri10:45:321
121750390irq/30-eth0_g0_31ksoftirqd/010:23:090
121750390irq/30-eth0_g0_31ksoftirqd/010:23:090
121750390irq/30-eth0_g0_31ksoftirqd/009:22:340
121750390irq/30-eth0_g0_1219-21kworker/1:209:50:181
121750390irq/30-eth0_g0_1219-21kworker/1:209:48:081
121750390irq/30-eth0_g0_121ksoftirqd/112:15:041
121750390irq/30-eth0_g0_0-21swapper/111:16:361
121750390irq/30-eth0_g0_0-21swapper/110:35:141
121650390irq/29-eth0_g0_31ksoftirqd/009:05:330
121650390irq/29-eth0_g0_2191999cyclictest11:30:080
121650390irq/29-eth0_g0_1964-21runrttasks12:31:570
121650390irq/29-eth0_g0_1330-21sed12:15:340
121650390irq/29-eth0_g0_13-21kworker/0:112:00:540
121650390irq/29-eth0_g0_13-21kworker/0:112:00:540
121650390irq/29-eth0_g0_13-21kworker/0:111:55:340
121650390irq/29-eth0_g0_13-21kworker/0:111:53:200
121650390irq/29-eth0_g0_13-21kworker/0:111:06:130
121650390irq/29-eth0_g0_13-21kworker/0:111:06:130
121650390irq/29-eth0_g0_13-21kworker/0:110:51:510
121650390irq/29-eth0_g0_13-21kworker/0:110:35:180
121650390irq/29-eth0_g0_13-21kworker/0:109:12:370
121650390irq/29-eth0_g0_0-21swapper/011:00:340
121390ksoftirqd/1121750irq/30-eth0_g0_12:28:550
121390ksoftirqd/1121750irq/30-eth0_g0_08:46:470
121390ksoftirqd/1121650irq/29-eth0_g0_09:27:061
121390ksoftirqd/1121650irq/29-eth0_g0_09:06:301
121390ksoftirqd/1121650irq/29-eth0_g0_07:52:271
2192099381cyclictest8350-21chrt08:20:321
2192099381cyclictest8350-21chrt08:20:321
2192099381cyclictest25596-21taskset07:20:131
121750380irq/30-eth0_g0_1219-21kworker/1:212:23:081
121750380irq/30-eth0_g0_121ksoftirqd/112:32:591
121750380irq/30-eth0_g0_0-21swapper/109:41:001
121650380irq/29-eth0_g0_7010-21/usr/sbin/munin08:15:280
121650380irq/29-eth0_g0_4167-21proc_pri10:15:320
121650380irq/29-eth0_g0_31ksoftirqd/011:19:070
121650380irq/29-eth0_g0_31ksoftirqd/010:55:250
121650380irq/29-eth0_g0_20031-21runrttasks11:20:310
121650380irq/29-eth0_g0_17041-21zcat08:55:330
121650380irq/29-eth0_g0_13-21kworker/0:109:25:240
121650380irq/29-eth0_g0_13-21kworker/0:109:15:390
121380ksoftirqd/1121650irq/29-eth0_g0_11:00:261
121380ksoftirqd/1121650irq/29-eth0_g0_09:59:581
121380ksoftirqd/1121650irq/29-eth0_g0_08:31:141
121380ksoftirqd/1121650irq/29-eth0_g0_07:09:291
2192099372cyclictest4822-21taskset08:05:351
2192099371cyclictest29359-21wc07:35:241
2192099371cyclictest26363-21grep07:20:351
2192099371cyclictest23421-21df_abs11:35:251
121750370irq/30-eth0_g0_1219-21kworker/1:210:26:421
121750370irq/30-eth0_g0_0-21swapper/111:54:031
121750370irq/30-eth0_g0_0-21swapper/111:23:321
121750370irq/30-eth0_g0_0-21swapper/111:14:521
121650370irq/29-eth0_g0_22687-21unixbench_singl07:05:360
121650370irq/29-eth0_g0_1964-21runrttasks07:40:320
121650370irq/29-eth0_g0_15963-21unixbench_singl08:50:350
121650370irq/29-eth0_g0_13-21kworker/0:112:11:550
121650370irq/29-eth0_g0_13-21kworker/0:111:39:590
121650370irq/29-eth0_g0_13-21kworker/0:110:07:120
121650370irq/29-eth0_g0_13-21kworker/0:109:40:200
121650370irq/29-eth0_g0_12843-21/usr/sbin/munin08:40:240
2192099361cyclictest32496-21grep07:45:351
2192099361cyclictest32496-21grep07:45:351
2192099361cyclictest28839-21head07:30:361
2192099361cyclictest16586-21df_abs08:55:261
2192099361cyclictest13540-21grep08:40:361
2192099361cyclictest103012sleep108:30:131
121750360irq/30-eth0_g0_0-21swapper/107:00:381
121650360irq/29-eth0_g0_32368-21swap07:45:340
121650360irq/29-eth0_g0_32368-21swap07:45:340
121650360irq/29-eth0_g0_23507-21sort07:10:280
121650360irq/29-eth0_g0_1964-21runrttasks08:23:290
121650360irq/29-eth0_g0_1964-21runrttasks08:23:290
121650360irq/29-eth0_g0_1964-21runrttasks07:23:000
121650360irq/29-eth0_g0_1875-21/usr/sbin/munin12:20:280
2192099351cyclictest26894-21date07:25:141
121750350irq/30-eth0_g0_4237-21latency_hist08:05:131
121650350irq/29-eth0_g0_861-21memory07:50:290
121650350irq/29-eth0_g0_6138-21unixbench_multi08:10:350
121650350irq/29-eth0_g0_4870-21cat08:05:350
121650350irq/29-eth0_g0_24982-21ps07:15:330
121650350irq/29-eth0_g0_1964-21runrttasks07:28:250
121650350irq/29-eth0_g0_11912-21memory08:35:300
121650350irq/29-eth0_g0_10547-21df_inode08:30:260
2192099341cyclictest2986-21cat08:00:131
121650340irq/29-eth0_g0_28817-21unixbench_singl07:30:360
121650340irq/29-eth0_g0_13-21kworker/0:107:35:230
121650340irq/29-eth0_g0_0-21swapper/008:00:250
121750330irq/30-eth0_g0_12154-21sendmail_mailqu08:35:351
21920993116cyclictest30963-21ntp_offset07:40:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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