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2026-05-24 - 02:12

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 the highest latencies:
System rack3slot5s.osadl.org (updated Sun May 24, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1513021710sleep1121650irq/29-eth0_g0_21:21:231
121800ksoftirqd/1121750irq/30-eth0_g0_21:10:200
121530ksoftirqd/1121650irq/29-eth0_g0_23:29:230
206922490sleep1121650irq/29-eth0_g0_23:56:551
121490ksoftirqd/1121650irq/29-eth0_g0_22:41:380
121490ksoftirqd/1121650irq/29-eth0_g0_21:35:590
121480ksoftirqd/1121750irq/30-eth0_g0_23:07:131
121480ksoftirqd/1121750irq/30-eth0_g0_00:37:431
121480ksoftirqd/1121650irq/29-eth0_g0_22:39:480
121470ksoftirqd/1121650irq/29-eth0_g0_23:28:201
121460ksoftirqd/1121650irq/29-eth0_g0_22:02:300
121460ksoftirqd/1121650irq/29-eth0_g0_21:34:091
153952450sleep0121650irq/29-eth0_g0_21:24:300
121450ksoftirqd/1121750irq/30-eth0_g0_22:18:031
121450ksoftirqd/1121650irq/29-eth0_g0_21:38:271
121450ksoftirqd/1121650irq/29-eth0_g0_21:29:581
121450ksoftirqd/1121650irq/29-eth0_g0_19:58:151
121440ksoftirqd/1121750irq/30-eth0_g0_22:40:401
121440ksoftirqd/1121750irq/30-eth0_g0_22:10:450
121440ksoftirqd/1121650irq/29-eth0_g0_20:00:201
121440ksoftirqd/1121650irq/29-eth0_g0_20:00:201
121750430irq/30-eth0_g0_1219-21kworker/1:222:55:581
121430ksoftirqd/1121750irq/30-eth0_g0_22:14:391
121430ksoftirqd/1121650irq/29-eth0_g0_19:25:191
121750420irq/30-eth0_g0_31ksoftirqd/019:05:110
121750420irq/30-eth0_g0_31ksoftirqd/019:05:110
121750420irq/30-eth0_g0_255252sleep100:16:101
121750420irq/30-eth0_g0_1219-21kworker/1:222:26:581
121750420irq/30-eth0_g0_1219-21kworker/1:221:51:101
121750420irq/30-eth0_g0_1219-21kworker/1:200:02:141
121750420irq/30-eth0_g0_121ksoftirqd/123:45:160
121750420irq/30-eth0_g0_0-21swapper/019:40:100
121650420irq/29-eth0_g0_5518-21awk22:55:160
121650420irq/29-eth0_g0_29403-21taskset00:33:390
121420ksoftirqd/1121650irq/29-eth0_g0_00:32:031
14881994136cyclictest6309-21/usr/sbin/munin20:45:191
121750410irq/30-eth0_g0_1964-21runrttasks23:12:591
121750410irq/30-eth0_g0_121ksoftirqd/123:40:021
121650410irq/29-eth0_g0_13-21kworker/0:123:55:030
121410ksoftirqd/1121650irq/29-eth0_g0_23:20:151
1488199401cyclictest4497-21sort20:39:581
1488199401cyclictest11762-21diskmemload22:45:151
1488199401cyclictest10688-21grep23:15:221
121750400irq/30-eth0_g0_1219-21kworker/1:221:46:251
121750400irq/30-eth0_g0_121ksoftirqd/120:10:081
121750400irq/30-eth0_g0_0-21swapper/121:10:081
121650400irq/29-eth0_g0_13-21kworker/0:123:09:360
121650400irq/29-eth0_g0_13-21kworker/0:122:06:370
121650400irq/29-eth0_g0_13-21kworker/0:121:33:450
121650400irq/29-eth0_g0_13-21kworker/0:121:18:500
121400ksoftirqd/1121750irq/30-eth0_g0_23:33:300
121400ksoftirqd/1121650irq/29-eth0_g0_22:36:221
1488199391cyclictest13362-21seq21:15:141
121750390irq/30-eth0_g0_16186-21/usr/sbin/munin19:15:141
121750390irq/30-eth0_g0_1219-21kworker/1:223:50:171
121750390irq/30-eth0_g0_121ksoftirqd/123:02:121
121750390irq/30-eth0_g0_121ksoftirqd/123:02:121
121750390irq/30-eth0_g0_121ksoftirqd/122:50:191
121750390irq/30-eth0_g0_0-21swapper/122:08:271
121650390irq/29-eth0_g0_31ksoftirqd/000:26:340
121650390irq/29-eth0_g0_23962-21proc_pri00:10:180
121650390irq/29-eth0_g0_1964-21runrttasks23:20:410
121650390irq/29-eth0_g0_1964-21runrttasks22:34:310
121650390irq/29-eth0_g0_13-21kworker/0:121:50:180
121650390irq/29-eth0_g0_13-21kworker/0:100:38:150
121390ksoftirqd/1121750irq/30-eth0_g0_23:00:340
121390ksoftirqd/1121750irq/30-eth0_g0_23:00:340
121390ksoftirqd/1121750irq/30-eth0_g0_22:20:560
121390ksoftirqd/1121750irq/30-eth0_g0_20:33:210
121390ksoftirqd/1121750irq/30-eth0_g0_20:21:300
121390ksoftirqd/1121750irq/30-eth0_g0_00:16:530
121390ksoftirqd/1121750irq/30-eth0_g0_00:07:150
1488199381cyclictest9481-21df21:00:081
1488199381cyclictest5078-21/usr/sbin/munin20:40:201
1488199381cyclictest32303-21latency20:20:131
1488199381cyclictest14412-21grep23:30:221
121750380irq/30-eth0_g0_1219-21kworker/1:221:56:101
121750380irq/30-eth0_g0_1219-21kworker/1:200:20:351
121750380irq/30-eth0_g0_121ksoftirqd/123:45:341
121750380irq/30-eth0_g0_121ksoftirqd/122:30:191
121750380irq/30-eth0_g0_121ksoftirqd/122:20:411
121750380irq/30-eth0_g0_121ksoftirqd/121:42:141
121750380irq/30-eth0_g0_0-21swapper/100:11:301
121650380irq/29-eth0_g0_27172-21/usr/sbin/munin20:00:200
121650380irq/29-eth0_g0_27172-21/usr/sbin/munin20:00:200
121650380irq/29-eth0_g0_1964-21runrttasks20:41:460
121650380irq/29-eth0_g0_1958-21crond21:09:570
121650380irq/29-eth0_g0_1958-21crond21:09:570
121650380irq/29-eth0_g0_16447-21memory23:40:130
121650380irq/29-eth0_g0_13-21kworker/0:123:16:230
121650380irq/29-eth0_g0_13-21kworker/0:123:12:090
121650380irq/29-eth0_g0_13-21kworker/0:122:45:490
121650380irq/29-eth0_g0_13-21kworker/0:122:18:490
121650380irq/29-eth0_g0_13-21kworker/0:121:25:560
121650380irq/29-eth0_g0_13-21kworker/0:100:02:530
121380ksoftirqd/1121750irq/30-eth0_g0_21:42:170
121380ksoftirqd/1121750irq/30-eth0_g0_20:35:320
121380ksoftirqd/1121750irq/30-eth0_g0_19:52:130
121380ksoftirqd/1121650irq/29-eth0_g0_20:50:161
1488199372cyclictest27739-21taskset00:25:191
1488199371cyclictest14994-21seq23:35:091
1488199371cyclictest14994-21seq23:35:091
1488199371cyclictest10839-21ethtool21:05:121
1488199371cyclictest10839-21ethtool21:05:121
121750370irq/30-eth0_g0_1219-21kworker/1:222:02:031
121750370irq/30-eth0_g0_1219-21kworker/1:200:05:441
121650370irq/29-eth0_g0_31155-21cat20:15:150
121650370irq/29-eth0_g0_1964-21runrttasks22:27:560
121650370irq/29-eth0_g0_1964-21runrttasks21:57:210
121650370irq/29-eth0_g0_13-21kworker/0:123:49:590
121650370irq/29-eth0_g0_13-21kworker/0:100:20:030
121650370irq/29-eth0_g0_0-21swapper/020:48:270
121370ksoftirqd/113736-21/usr/sbin/munin19:05:141
121370ksoftirqd/113736-21/usr/sbin/munin19:05:141
121370ksoftirqd/1121650irq/29-eth0_g0_23:35:370
121370ksoftirqd/1121650irq/29-eth0_g0_23:35:370
1488199361cyclictest8651-21ps20:55:161
1488199361cyclictest31996-21grep20:19:581
1488199361cyclictest29031-21grep20:05:201
1488199361cyclictest25120-21/usr/sbin/munin19:50:161
1488199361cyclictest23492-21taskset19:44:591
121650360irq/29-eth0_g0_24173-21grep19:45:200
121650360irq/29-eth0_g0_1964-21runrttasks21:47:590
121650360irq/29-eth0_g0_1964-21runrttasks20:10:530
121650360irq/29-eth0_g0_19013-21ntpdc19:25:150
121650360irq/29-eth0_g0_13-21kworker/0:122:50:430
121650360irq/29-eth0_g0_10335-21seq21:02:370
1488199351cyclictest24482sleep120:30:131
121750350irq/30-eth0_g0_21243-21seq19:35:111
121650350irq/29-eth0_g0_21542-21proc_pri19:35:170
121650350irq/29-eth0_g0_20105-21latency19:30:120
121650350irq/29-eth0_g0_1964-21runrttasks20:51:440
121650350irq/29-eth0_g0_1964-21runrttasks19:15:550
121650350irq/29-eth0_g0_1536-21unixbench_singl20:25:190
1488199341cyclictest153452sleep119:10:131
1488199341cyclictest153452sleep119:10:131
1488199341cyclictest0-21swapper/119:45:181
121750340irq/30-eth0_g0_17615-21if_eth019:20:110
121650340irq/29-eth0_g0_15072-21sed19:10:090
121650340irq/29-eth0_g0_15072-21sed19:10:090
121340ksoftirqd/1121650irq/29-eth0_g0_19:20:201
1488199331cyclictest19853-21/usr/sbin/munin19:30:161
121650330irq/29-eth0_g0_8402-21/usr/sbin/munin20:55:100
121650330irq/29-eth0_g0_29020-21unixbench_multi20:05:200
121650330irq/29-eth0_g0_1964-21runrttasks19:57:350
1488199321cyclictest0-21swapper/120:29:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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