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2026-07-15 - 00:55

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 Tue Jul 14, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2985221440sleep1121750irq/30-eth0_g0_12:24:481
80532790sleep0121750irq/30-eth0_g0_08:43:160
60042750sleep1121750irq/30-eth0_g0_10:48:111
301122750sleep1121750irq/30-eth0_g0_08:02:561
204102700sleep1121750irq/30-eth0_g0_09:33:161
121690ksoftirqd/1121650irq/29-eth0_g0_10:28:111
121650ksoftirqd/11661099cyclictest07:56:121
205652590sleep1121750irq/30-eth0_g0_11:48:071
121540ksoftirqd/1121750irq/30-eth0_g0_10:17:461
121510ksoftirqd/1121650irq/29-eth0_g0_10:58:120
121500ksoftirqd/1121750irq/30-eth0_g0_09:42:481
157192490sleep0121750irq/30-eth0_g0_09:14:410
121480ksoftirqd/1121750irq/30-eth0_g0_12:20:481
121480ksoftirqd/1121750irq/30-eth0_g0_11:17:221
121460ksoftirqd/1121750irq/30-eth0_g0_12:32:011
121460ksoftirqd/1121750irq/30-eth0_g0_10:59:141
121460ksoftirqd/1121650irq/29-eth0_g0_11:10:110
121460ksoftirqd/1121650irq/29-eth0_g0_07:42:371
263452450sleep0121650irq/29-eth0_g0_12:11:460
121650450irq/29-eth0_g0_121ksoftirqd/110:35:510
121650450irq/29-eth0_g0_121ksoftirqd/110:35:510
121450ksoftirqd/1121750irq/30-eth0_g0_10:26:071
121450ksoftirqd/1121750irq/30-eth0_g0_09:29:141
121450ksoftirqd/1121650irq/29-eth0_g0_12:37:341
121650440irq/29-eth0_g0_31ksoftirqd/012:33:170
121650440irq/29-eth0_g0_31ksoftirqd/009:10:380
121440ksoftirqd/1121650irq/29-eth0_g0_10:20:061
121440ksoftirqd/1121650irq/29-eth0_g0_09:50:320
121750430irq/30-eth0_g0_1219-21kworker/1:210:11:571
121650430irq/29-eth0_g0_4912sleep010:25:400
121650430irq/29-eth0_g0_31ksoftirqd/009:34:490
121430ksoftirqd/1121650irq/29-eth0_g0_10:50:060
121430ksoftirqd/1121650irq/29-eth0_g0_07:07:561
121430ksoftirqd/1121650irq/29-eth0_g0_07:07:561
121750420irq/30-eth0_g0_1219-21kworker/1:210:46:501
121650420irq/29-eth0_g0_16106-21grep07:03:140
121650420irq/29-eth0_g0_16106-21grep07:03:140
121420ksoftirqd/1121750irq/30-eth0_g0_10:53:571
121420ksoftirqd/1121650irq/29-eth0_g0_09:21:331
121750410irq/30-eth0_g0_254322sleep109:53:481
121750410irq/30-eth0_g0_1219-21kworker/1:209:24:061
121650410irq/29-eth0_g0_31ksoftirqd/011:48:590
1661099401cyclictest26146-21latency09:58:091
121750400irq/30-eth0_g0_13-21kworker/0:109:22:110
121750400irq/30-eth0_g0_1219-21kworker/1:211:21:431
121750400irq/30-eth0_g0_1219-21kworker/1:209:11:221
121750400irq/30-eth0_g0_121ksoftirqd/112:03:451
121650400irq/29-eth0_g0_31472-21unixbench_singl10:18:160
121650400irq/29-eth0_g0_31ksoftirqd/012:14:510
121650400irq/29-eth0_g0_13-21kworker/0:112:27:290
121650400irq/29-eth0_g0_13-21kworker/0:111:35:060
121650400irq/29-eth0_g0_13-21kworker/0:110:43:460
121650400irq/29-eth0_g0_13-21kworker/0:110:40:400
121650400irq/29-eth0_g0_13-21kworker/0:109:23:270
121650400irq/29-eth0_g0_121ksoftirqd/112:20:550
121650400irq/29-eth0_g0_121ksoftirqd/112:06:390
121400ksoftirqd/115039-21chrt09:13:071
121400ksoftirqd/1121750irq/30-eth0_g0_11:03:350
121400ksoftirqd/1121750irq/30-eth0_g0_09:54:380
121400ksoftirqd/1121650irq/29-eth0_g0_10:42:281
1661099392cyclictest2109-21lldpd08:21:481
1661099391cyclictest23959-21zcat09:48:131
121750390irq/30-eth0_g0_1219-21kworker/1:212:02:481
121750390irq/30-eth0_g0_1219-21kworker/1:212:02:481
121750390irq/30-eth0_g0_0-21swapper/109:02:111
121650390irq/29-eth0_g0_31ksoftirqd/011:43:150
121650390irq/29-eth0_g0_13-21kworker/0:111:38:050
121650390irq/29-eth0_g0_13-21kworker/0:111:14:080
121650390irq/29-eth0_g0_13-21kworker/0:110:30:460
121650390irq/29-eth0_g0_13-21kworker/0:110:05:060
121390ksoftirqd/1121750irq/30-eth0_g0_11:23:560
121390ksoftirqd/1121750irq/30-eth0_g0_11:20:200
121390ksoftirqd/1121750irq/30-eth0_g0_10:55:250
121390ksoftirqd/1121750irq/30-eth0_g0_10:17:300
121390ksoftirqd/1121750irq/30-eth0_g0_10:11:250
121390ksoftirqd/1121750irq/30-eth0_g0_09:45:200
121390ksoftirqd/1121750irq/30-eth0_g0_09:39:230
121390ksoftirqd/1121750irq/30-eth0_g0_09:32:500
121390ksoftirqd/1121750irq/30-eth0_g0_08:38:260
121390ksoftirqd/1121750irq/30-eth0_g0_08:36:230
121390ksoftirqd/1121750irq/30-eth0_g0_08:03:530
121390ksoftirqd/1121750irq/30-eth0_g0_08:03:530
121390ksoftirqd/1121750irq/30-eth0_g0_07:55:220
121390ksoftirqd/1121750irq/30-eth0_g0_07:31:440
121390ksoftirqd/1121750irq/30-eth0_g0_07:13:190
121390ksoftirqd/1121750irq/30-eth0_g0_07:09:490
121390ksoftirqd/1121650irq/29-eth0_g0_09:46:311
121750380irq/30-eth0_g0_121ksoftirqd/111:38:471
121750380irq/30-eth0_g0_0-21swapper/112:10:101
121750380irq/30-eth0_g0_0-21swapper/111:31:591
121650380irq/29-eth0_g0_24729-21grep07:38:160
121650380irq/29-eth0_g0_1964-21runrttasks08:52:320
121650380irq/29-eth0_g0_13-21kworker/0:111:54:000
121650380irq/29-eth0_g0_13-21kworker/0:109:58:490
121650380irq/29-eth0_g0_11320-21df_abs08:58:060
121650380irq/29-eth0_g0_0-21swapper/008:23:090
121380ksoftirqd/1121750irq/30-eth0_g0_12:28:040
121380ksoftirqd/1121650irq/29-eth0_g0_11:44:561
1661099372cyclictest6585-21memory08:38:101
1661099372cyclictest20599-21irqstats07:23:101
1661099371cyclictest5392sleep108:13:131
1661099371cyclictest18250-21taskset07:13:101
1661099371cyclictest13058-21unixbench_multi09:03:171
1661099371cyclictest0-21swapper/112:13:171
121750370irq/30-eth0_g0_1219-21kworker/1:211:23:121
121750370irq/30-eth0_g0_121ksoftirqd/111:09:301
121750370irq/30-eth0_g0_0-21swapper/111:33:561
121650370irq/29-eth0_g0_1964-21runrttasks07:33:160
121650370irq/29-eth0_g0_13-21kworker/0:111:58:520
121650370irq/29-eth0_g0_13-21kworker/0:111:58:520
121650370irq/29-eth0_g0_13-21kworker/0:111:28:550
1661099361cyclictest9205-21wc08:48:141
1661099361cyclictest4552-21head08:28:171
1661099361cyclictest10618-21unixbench_multi08:53:171
1661099361cyclictest10618-21unixbench_multi08:53:171
121750360irq/30-eth0_g0_1219-21kworker/1:210:33:401
121750360irq/30-eth0_g0_1219-21kworker/1:210:33:401
121750360irq/30-eth0_g0_1219-21kworker/1:210:05:301
121650360irq/29-eth0_g0_791-21grep08:13:170
121650360irq/29-eth0_g0_1964-21runrttasks08:31:000
121650360irq/29-eth0_g0_1964-21runrttasks08:10:510
121650360irq/29-eth0_g0_1964-21runrttasks08:10:510
121650360irq/29-eth0_g0_1964-21runrttasks07:20:220
1661099351cyclictest8046-21rt-features08:43:161
1661099351cyclictest30827-21grep08:03:171
1661099351cyclictest30827-21grep08:03:171
1661099351cyclictest21897-21latency11:53:101
1661099351cyclictest17255-21sendmail_mailtr07:08:141
121750350irq/30-eth0_g0_1219-21kworker/1:211:03:421
121650350irq/29-eth0_g0_27160-21unixbench_singl07:48:180
121650350irq/29-eth0_g0_2608-21seq08:22:550
121650350irq/29-eth0_g0_25858-21cat07:43:170
121650350irq/29-eth0_g0_1964-21runrttasks09:03:570
121650350irq/29-eth0_g0_1964-21runrttasks08:00:130
121650350irq/29-eth0_g0_10192-21iostat08:53:090
121650350irq/29-eth0_g0_10192-21iostat08:53:090
121350ksoftirqd/1121650irq/29-eth0_g0_07:33:111
1661099341cyclictest26619-21df_abs07:48:081
1661099341cyclictest0-21swapper/108:11:301
1661099341cyclictest0-21swapper/108:11:301
121750340irq/30-eth0_g0_19718-21swap07:18:161
121650340irq/29-eth0_g0_21057-21unixbench_singl07:23:190
1661099331cyclictest5290-21chrt08:33:071
1661099331cyclictest3029-21ntp_states08:23:141
1661099331cyclictest0-21swapper/107:27:591
121750330irq/30-eth0_g0_25410-21df_inode07:43:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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