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2026-05-25 - 11:31

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 May 25, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2610321330sleep0121650irq/29-eth0_g0_21:41:410
1578521190sleep1121650irq/29-eth0_g0_23:12:141
1578521190sleep1121650irq/29-eth0_g0_23:12:141
211942690sleep1121750irq/30-eth0_g0_21:21:341
206332680sleep1121750irq/30-eth0_g0_23:31:391
190182630sleep1121750irq/30-eth0_g0_21:14:501
213732580sleep0121750irq/30-eth0_g0_21:23:380
33792560sleep1121650irq/29-eth0_g0_22:20:241
121500ksoftirqd/1121750irq/30-eth0_g0_00:36:091
121500ksoftirqd/1121650irq/29-eth0_g0_19:12:331
202562490sleep0121750irq/30-eth0_g0_21:19:560
236622470sleep1121750irq/30-eth0_g0_23:45:081
121460ksoftirqd/1121750irq/30-eth0_g0_23:41:581
121460ksoftirqd/1121750irq/30-eth0_g0_23:41:581
121460ksoftirqd/1121650irq/29-eth0_g0_21:08:441
121460ksoftirqd/1121650irq/29-eth0_g0_20:18:201
121460ksoftirqd/1121650irq/29-eth0_g0_19:59:521
121650450irq/29-eth0_g0_13-21kworker/0:122:52:300
121450ksoftirqd/1121650irq/29-eth0_g0_20:09:351
121450ksoftirqd/1121650irq/29-eth0_g0_00:14:431
47172440sleep0121750irq/30-eth0_g0_22:26:430
20822440sleep1121750irq/30-eth0_g0_22:15:171
121440ksoftirqd/1121750irq/30-eth0_g0_21:19:001
73582430sleep0121650irq/29-eth0_g0_22:38:550
249172430sleep1121750irq/30-eth0_g0_21:37:091
121750430irq/30-eth0_g0_31ksoftirqd/023:45:150
121750430irq/30-eth0_g0_1219-21kworker/1:222:59:081
121750430irq/30-eth0_g0_1219-21kworker/1:221:46:131
121750430irq/30-eth0_g0_121ksoftirqd/122:01:581
121750430irq/30-eth0_g0_121ksoftirqd/122:01:581
121650430irq/29-eth0_g0_1964-21runrttasks22:18:240
121430ksoftirqd/128012sleep022:20:080
121430ksoftirqd/1121750irq/30-eth0_g0_21:53:220
121430ksoftirqd/1121750irq/30-eth0_g0_19:05:140
121430ksoftirqd/1121650irq/29-eth0_g0_00:20:161
121750420irq/30-eth0_g0_1219-21kworker/1:221:50:161
121650420irq/29-eth0_g0_31ksoftirqd/021:25:350
121650420irq/29-eth0_g0_31ksoftirqd/021:25:350
121650420irq/29-eth0_g0_31ksoftirqd/000:08:390
121650420irq/29-eth0_g0_13-21kworker/0:123:36:380
121650420irq/29-eth0_g0_13-21kworker/0:122:49:350
121650420irq/29-eth0_g0_13-21kworker/0:122:00:450
121650420irq/29-eth0_g0_13-21kworker/0:122:00:450
2082099412cyclictest19186-21grep23:25:171
2082099411cyclictest17802-21diskmemload21:30:131
121650410irq/29-eth0_g0_31ksoftirqd/023:03:590
121650410irq/29-eth0_g0_13-21kworker/0:123:26:110
121650410irq/29-eth0_g0_13-21kworker/0:122:40:250
121650410irq/29-eth0_g0_13-21kworker/0:122:09:240
121650410irq/29-eth0_g0_13-21kworker/0:121:37:440
121650410irq/29-eth0_g0_13-21kworker/0:100:14:030
121650410irq/29-eth0_g0_121ksoftirqd/123:12:170
121650410irq/29-eth0_g0_121ksoftirqd/123:12:170
121650410irq/29-eth0_g0_121ksoftirqd/100:35:520
2082099401cyclictest7545-21head20:25:171
2082099401cyclictest7545-21head20:25:171
2082099401cyclictest6947-21grep22:35:171
121750400irq/30-eth0_g0_1219-21kworker/1:221:28:071
121750400irq/30-eth0_g0_1219-21kworker/1:221:28:071
121750400irq/30-eth0_g0_1219-21kworker/1:200:08:421
121750400irq/30-eth0_g0_10227-21/usr/sbin/munin22:50:111
121750400irq/30-eth0_g0_0-21swapper/122:49:101
121650400irq/29-eth0_g0_29667-21if_eth019:45:080
121650400irq/29-eth0_g0_29667-21if_eth019:45:080
121650400irq/29-eth0_g0_1964-21runrttasks19:28:560
121650400irq/29-eth0_g0_13-21kworker/0:123:59:310
121650400irq/29-eth0_g0_13-21kworker/0:123:32:220
121650400irq/29-eth0_g0_13-21kworker/0:121:45:580
121650400irq/29-eth0_g0_13-21kworker/0:121:31:270
121650400irq/29-eth0_g0_13-21kworker/0:100:26:580
121650400irq/29-eth0_g0_13-21kworker/0:100:22:150
121650400irq/29-eth0_g0_121ksoftirqd/122:33:430
121400ksoftirqd/1121750irq/30-eth0_g0_21:10:420
20820993910cyclictest0-21swapper/122:41:181
2082099391cyclictest29562-21grep21:55:171
2082099391cyclictest1206-21ntpdc00:25:101
121750390irq/30-eth0_g0_17971-21unixbench_multi23:20:161
121750390irq/30-eth0_g0_121ksoftirqd/123:54:301
121750390irq/30-eth0_g0_0-21swapper/122:06:491
121750390irq/30-eth0_g0_0-21swapper/100:17:201
121650390irq/29-eth0_g0_31ksoftirqd/020:45:100
121650390irq/29-eth0_g0_27739-21grep19:35:190
121650390irq/29-eth0_g0_13-21kworker/0:123:21:180
121650390irq/29-eth0_g0_13-21kworker/0:122:56:100
121650390irq/29-eth0_g0_13-21kworker/0:100:32:140
121650390irq/29-eth0_g0_13-21kworker/0:100:16:300
121650390irq/29-eth0_g0_121ksoftirqd/123:41:530
121650390irq/29-eth0_g0_121ksoftirqd/123:41:530
121390ksoftirqd/1121650irq/29-eth0_g0_23:00:101
121390ksoftirqd/1121650irq/29-eth0_g0_19:33:561
121390ksoftirqd/1121650irq/29-eth0_g0_19:18:381
2082099385cyclictest31000-21missed_timers19:50:121
2082099382cyclictest11700-21cat20:44:561
2082099381cyclictest669-21awk22:10:151
2082099381cyclictest27140-21chrt00:00:071
2082099381cyclictest0-21swapper/123:05:091
2082099381cyclictest0-21swapper/119:20:221
121750380irq/30-eth0_g0_1219-21kworker/1:222:31:491
121750380irq/30-eth0_g0_1219-21kworker/1:200:34:251
121750380irq/30-eth0_g0_121ksoftirqd/123:37:151
121750380irq/30-eth0_g0_121ksoftirqd/122:26:461
121750380irq/30-eth0_g0_0-21swapper/123:55:531
121650380irq/29-eth0_g0_300052sleep021:59:190
121650380irq/29-eth0_g0_25300-21timerandwakeup23:50:160
121650380irq/29-eth0_g0_21629-21uptime19:10:200
121650380irq/29-eth0_g0_13-21kworker/0:123:15:070
121650380irq/29-eth0_g0_13-21kworker/0:123:05:180
121650380irq/29-eth0_g0_13-21kworker/0:122:10:570
121650380irq/29-eth0_g0_121ksoftirqd/123:59:590
121380ksoftirqd/1121650irq/29-eth0_g0_21:41:001
121380ksoftirqd/1121650irq/29-eth0_g0_19:28:401
2082099371cyclictest28951-21grep19:40:161
121750370irq/30-eth0_g0_19922-21latency19:05:111
121650370irq/29-eth0_g0_9772-21ps20:35:150
121650370irq/29-eth0_g0_23888-21sendmail_mailqu19:20:150
121650370irq/29-eth0_g0_2257-21memory20:05:110
121650370irq/29-eth0_g0_1964-21runrttasks21:04:060
121650370irq/29-eth0_g0_1964-21runrttasks20:11:170
121650370irq/29-eth0_g0_1964-21runrttasks19:16:160
121650370irq/29-eth0_g0_1245-21rt-features20:00:141
121370ksoftirqd/1121650irq/29-eth0_g0_21:03:431
2082099361cyclictest29746-21sort19:45:091
2082099361cyclictest29746-21sort19:45:091
121750360irq/30-eth0_g0_3581-21ntp_offset20:10:121
121750360irq/30-eth0_g0_1219-21kworker/1:223:19:301
121650360irq/29-eth0_g0_7244-21/usr/sbin/munin20:25:120
121650360irq/29-eth0_g0_7244-21/usr/sbin/munin20:25:120
121650360irq/29-eth0_g0_26454-21unixbench_multi19:30:170
121650360irq/29-eth0_g0_1964-21runrttasks20:53:300
121650360irq/29-eth0_g0_1964-21runrttasks20:53:300
121650360irq/29-eth0_g0_1964-21runrttasks20:03:400
121360ksoftirqd/1121650irq/29-eth0_g0_20:36:391
121360ksoftirqd/1121650irq/29-eth0_g0_19:36:011
2082099351cyclictest8736-21grep20:30:161
2082099351cyclictest14679-21ps20:55:141
121650350irq/29-eth0_g0_6799-21latency_hist20:24:560
121650350irq/29-eth0_g0_6799-21latency_hist20:24:560
121650350irq/29-eth0_g0_1964-21runrttasks20:41:320
121650350irq/29-eth0_g0_1964-21runrttasks20:31:110
121650350irq/29-eth0_g0_1964-21runrttasks20:19:180
121650350irq/29-eth0_g0_1964-21runrttasks19:44:060
121650350irq/29-eth0_g0_17022-21netstat21:05:120
121650350irq/29-eth0_g0_0-21swapper/019:55:110
121650350irq/29-eth0_g0_0-21swapper/019:52:330
121350ksoftirqd/1121650irq/29-eth0_g0_20:47:191
121650340irq/29-eth0_g0_0-21swapper/020:55:110
2082099331cyclictest0-21swapper/120:51:341
2082099331cyclictest0-21swapper/120:51:341
121750320irq/30-eth0_g0_0-21swapper/120:22:271
121750320irq/30-eth0_g0_0-21swapper/120:22:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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