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2026-05-23 - 20:46

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 Sat May 23, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72721160sleep0121650irq/29-eth0_g0_11:31:270
1211040ksoftirqd/1121750irq/30-eth0_g0_09:11:261
1211020ksoftirqd/1121750irq/30-eth0_g0_08:20:301
121960ksoftirqd/1121750irq/30-eth0_g0_09:28:261
250032850sleep0121650irq/29-eth0_g0_10:55:560
277292840sleep1121650irq/29-eth0_g0_11:09:111
56332760sleep0121750irq/30-eth0_g0_11:51:090
32342760sleep0121650irq/29-eth0_g0_09:28:470
241242730sleep1121750irq/30-eth0_g0_10:54:591
177182720sleep0121650irq/29-eth0_g0_10:26:310
140202620sleep1121750irq/30-eth0_g0_10:11:111
121560ksoftirqd/1121750irq/30-eth0_g0_12:27:340
90712530chrt121750irq/30-eth0_g0_09:50:311
121520ksoftirqd/1121750irq/30-eth0_g0_10:56:571
121520ksoftirqd/1121750irq/30-eth0_g0_08:10:200
81362490sleep0121650irq/29-eth0_g0_12:01:520
121490ksoftirqd/1121750irq/30-eth0_g0_11:15:131
45252480sleep0121650irq/29-eth0_g0_09:34:330
121470ksoftirqd/1121750irq/30-eth0_g0_11:03:451
121470ksoftirqd/1121750irq/30-eth0_g0_10:16:551
121470ksoftirqd/1121650irq/29-eth0_g0_11:07:060
204552460sleep0121650irq/29-eth0_g0_10:39:560
20182460sleep0121750irq/30-eth0_g0_11:36:520
121750460irq/30-eth0_g0_1219-21kworker/1:211:29:371
121460ksoftirqd/1121750irq/30-eth0_g0_10:11:400
121750450irq/30-eth0_g0_0-21swapper/112:10:191
121450ksoftirqd/1121650irq/29-eth0_g0_12:23:541
121450ksoftirqd/1121650irq/29-eth0_g0_11:51:581
121450ksoftirqd/1121650irq/29-eth0_g0_08:04:511
121750440irq/30-eth0_g0_121ksoftirqd/111:30:121
121750440irq/30-eth0_g0_0-21swapper/110:05:101
121750440irq/30-eth0_g0_0-21swapper/110:05:101
121440ksoftirqd/1121650irq/29-eth0_g0_08:15:001
121650430irq/29-eth0_g0_31ksoftirqd/007:25:220
121650430irq/29-eth0_g0_1653-21unixbench_multi07:05:190
121430ksoftirqd/1121750irq/30-eth0_g0_10:44:411
121430ksoftirqd/1121750irq/30-eth0_g0_10:15:340
121430ksoftirqd/1121750irq/30-eth0_g0_09:47:261
121430ksoftirqd/1121650irq/29-eth0_g0_10:39:491
121650420irq/29-eth0_g0_121ksoftirqd/112:36:410
121650420irq/29-eth0_g0_121ksoftirqd/112:36:410
121650420irq/29-eth0_g0_121ksoftirqd/111:35:161
121420ksoftirqd/1121750irq/30-eth0_g0_11:20:120
121420ksoftirqd/1121650irq/29-eth0_g0_12:00:201
218499411cyclictest129962sleep107:55:161
121750410irq/30-eth0_g0_14304-21runrttasks12:27:341
121750410irq/30-eth0_g0_1219-21kworker/1:210:23:501
121650410irq/29-eth0_g0_31ksoftirqd/011:29:080
121650410irq/29-eth0_g0_22419-21grep10:45:220
121650410irq/29-eth0_g0_21247-21unixbench_singl10:40:230
121650410irq/29-eth0_g0_13-21kworker/0:109:58:250
121650410irq/29-eth0_g0_13-21kworker/0:109:20:010
121650410irq/29-eth0_g0_13-21kworker/0:109:20:010
218499401cyclictest35212sleep111:44:591
218499401cyclictest163612sleep112:35:191
218499401cyclictest163612sleep112:35:191
121750400irq/30-eth0_g0_1219-21kworker/1:209:40:101
121750400irq/30-eth0_g0_121ksoftirqd/110:25:591
121650400irq/29-eth0_g0_13-21kworker/0:112:21:110
121650400irq/29-eth0_g0_13-21kworker/0:112:15:040
121650400irq/29-eth0_g0_13-21kworker/0:112:05:510
121650400irq/29-eth0_g0_13-21kworker/0:111:55:470
121650400irq/29-eth0_g0_13-21kworker/0:110:01:530
121400ksoftirqd/1121750irq/30-eth0_g0_12:32:150
121400ksoftirqd/1121750irq/30-eth0_g0_11:17:070
121400ksoftirqd/1121750irq/30-eth0_g0_10:31:290
121400ksoftirqd/1121750irq/30-eth0_g0_10:06:480
121400ksoftirqd/1121750irq/30-eth0_g0_10:06:480
121400ksoftirqd/1121750irq/30-eth0_g0_09:41:460
121400ksoftirqd/1121750irq/30-eth0_g0_09:11:220
121400ksoftirqd/1121650irq/29-eth0_g0_12:05:201
121400ksoftirqd/1121650irq/29-eth0_g0_09:39:291
218499391cyclictest30858-21diskmemload09:55:161
218499391cyclictest11691-21ls07:50:151
121750390irq/30-eth0_g0_1219-21kworker/1:211:10:011
121650390irq/29-eth0_g0_13-21kworker/0:111:48:260
121650390irq/29-eth0_g0_13-21kworker/0:109:37:380
121650390irq/29-eth0_g0_13-21kworker/0:109:16:220
121390ksoftirqd/1121750irq/30-eth0_g0_11:40:540
121390ksoftirqd/1121750irq/30-eth0_g0_11:10:090
121390ksoftirqd/1121750irq/30-eth0_g0_10:23:070
121390ksoftirqd/1121750irq/30-eth0_g0_09:51:250
121390ksoftirqd/1121750irq/30-eth0_g0_09:48:580
121390ksoftirqd/1121750irq/30-eth0_g0_08:53:010
121390ksoftirqd/1121750irq/30-eth0_g0_07:34:390
121390ksoftirqd/1121750irq/30-eth0_g0_07:22:100
121390ksoftirqd/1121650irq/29-eth0_g0_10:04:261
218499381cyclictest22355-21cat10:45:211
121750380irq/30-eth0_g0_31ksoftirqd/010:50:040
121750380irq/30-eth0_g0_1219-21kworker/1:209:16:491
121750380irq/30-eth0_g0_0-21swapper/111:24:251
121650380irq/29-eth0_g0_13192-21timerandwakeup07:55:200
121650380irq/29-eth0_g0_10108-21ntp_offset12:10:140
121380ksoftirqd/1121750irq/30-eth0_g0_09:07:190
218499372cyclictest7546-21ntp_states07:30:161
218499372cyclictest3826-21grep09:30:151
218499372cyclictest2919-21tail07:10:211
218499372cyclictest2919-21tail07:10:211
218499372cyclictest23125-21vmstat08:35:231
218499371cyclictest30012-21load09:05:131
218499371cyclictest27744-21wc08:55:191
218499371cyclictest26590-21/usr/sbin/munin08:50:181
218499371cyclictest15291-21sed12:30:211
218499371cyclictest12102-21latency_hist12:19:591
121750370irq/30-eth0_g0_1219-21kworker/1:211:59:221
121750370irq/30-eth0_g0_0-21swapper/111:49:361
121650370irq/29-eth0_g0_20604-21unixbench_multi08:25:210
121650370irq/29-eth0_g0_20604-21unixbench_multi08:25:210
121650370irq/29-eth0_g0_1964-21runrttasks08:46:190
121650370irq/29-eth0_g0_1964-21runrttasks08:19:040
121650370irq/29-eth0_g0_1964-21runrttasks08:09:380
121650370irq/29-eth0_g0_13-21kworker/0:111:00:130
218499362cyclictest35552sleep107:15:111
218499362cyclictest1611-21tail09:20:221
218499362cyclictest1611-21tail09:20:221
218499361cyclictest88402sleep107:39:591
218499361cyclictest23931-21cat08:40:151
218499361cyclictest20343-21grep08:25:171
218499361cyclictest20343-21grep08:25:171
121750360irq/30-eth0_g0_1964-21runrttasks07:23:571
121650360irq/29-eth0_g0_1964-21runrttasks09:03:380
121650360irq/29-eth0_g0_1964-21runrttasks08:42:560
121650360irq/29-eth0_g0_1964-21runrttasks07:42:070
121650360irq/29-eth0_g0_19342-21chrt08:20:190
121650360irq/29-eth0_g0_14394-21sendmail_mailtr08:00:210
121650360irq/29-eth0_g0_11923-21sendmail_mailqu07:50:190
218499351cyclictest28758-21taskset09:00:131
218499351cyclictest21490-21cat08:30:151
218499351cyclictest101482sleep107:45:021
121750350irq/30-eth0_g0_1219-21kworker/1:210:31:101
121650350irq/29-eth0_g0_4616-21munin-run07:19:590
121650350irq/29-eth0_g0_27942-21unixbench_multi08:55:210
121650350irq/29-eth0_g0_1549-21/usr/sbin/munin07:05:181
121650350irq/29-eth0_g0_0-21swapper/008:30:190
218499341cyclictest90012sleep107:40:121
121750340irq/30-eth0_g0_15457-21ntp_states08:05:181
121650340irq/29-eth0_g0_2331-21/usr/sbin/munin07:10:100
121650340irq/29-eth0_g0_2331-21/usr/sbin/munin07:10:100
121650340irq/29-eth0_g0_1964-21runrttasks08:35:320
121650340irq/29-eth0_g0_1964-21runrttasks07:37:150
121340ksoftirqd/1121650irq/29-eth0_g0_08:15:141
218499331cyclictest25227-21ntp_offset08:45:161
218499331cyclictest1964-21runrttasks07:25:451
121650330irq/29-eth0_g0_0-21swapper/007:45:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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