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2026-05-20 - 02:05

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 the highest latencies:
System rack3slot5s.osadl.org (updated Wed May 20, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
199892590sleep1121450irq/29-eth0_g0_22:18:131
121530ksoftirqd/1121550irq/30-eth0_g0_00:05:391
121520ksoftirqd/1121550irq/30-eth0_g0_21:36:351
121510ksoftirqd/1121550irq/30-eth0_g0_00:30:481
121510ksoftirqd/1121550irq/30-eth0_g0_00:30:481
279752500sleep0121550irq/30-eth0_g0_23:36:460
279752500sleep0121550irq/30-eth0_g0_23:36:460
121500ksoftirqd/1121550irq/30-eth0_g0_00:27:161
121490ksoftirqd/1121550irq/30-eth0_g0_00:18:281
121470ksoftirqd/1121550irq/30-eth0_g0_21:54:501
121450460irq/29-eth0_g0_31ksoftirqd/023:31:370
121460ksoftirqd/1121550irq/30-eth0_g0_23:59:521
121450ksoftirqd/1121550irq/30-eth0_g0_22:29:251
121440ksoftirqd/1121450irq/29-eth0_g0_21:36:260
121550430irq/30-eth0_g0_1221-21kworker/1:221:27:551
121430ksoftirqd/1121550irq/30-eth0_g0_00:37:161
121430ksoftirqd/1121450irq/29-eth0_g0_21:29:261
121550420irq/30-eth0_g0_1221-21kworker/1:223:14:181
121550420irq/30-eth0_g0_121ksoftirqd/121:59:191
121550410irq/30-eth0_g0_268592sleep123:25:341
121550410irq/30-eth0_g0_1221-21kworker/1:222:46:371
121450410irq/29-eth0_g0_13-21kworker/0:123:57:430
121450410irq/29-eth0_g0_13-21kworker/0:123:15:350
121450410irq/29-eth0_g0_13-21kworker/0:123:00:490
121450410irq/29-eth0_g0_0-21swapper/019:05:210
121410ksoftirqd/1121550irq/30-eth0_g0_23:39:581
121410ksoftirqd/1121550irq/30-eth0_g0_23:36:581
121410ksoftirqd/1121550irq/30-eth0_g0_23:36:581
121410ksoftirqd/1121550irq/30-eth0_g0_00:13:500
213372400sleep0121550irq/30-eth0_g0_22:31:130
121550400irq/30-eth0_g0_31ksoftirqd/022:34:310
121550400irq/30-eth0_g0_297562sleep123:53:521
121550400irq/30-eth0_g0_1221-21kworker/1:221:13:241
121550400irq/30-eth0_g0_1221-21kworker/1:200:10:271
121550400irq/30-eth0_g0_0-21swapper/121:43:191
121450400irq/29-eth0_g0_3304-21latency_hist19:33:430
121450400irq/29-eth0_g0_1982-21lldpd23:23:270
121450400irq/29-eth0_g0_1911-21runrttasks19:36:210
121450400irq/29-eth0_g0_13-21kworker/0:122:55:080
121450400irq/29-eth0_g0_13-21kworker/0:121:51:260
121450400irq/29-eth0_g0_13-21kworker/0:100:20:340
121400ksoftirqd/1121550irq/30-eth0_g0_21:17:440
121400ksoftirqd/1121550irq/30-eth0_g0_21:10:220
121400ksoftirqd/1121550irq/30-eth0_g0_00:09:550
121550390irq/30-eth0_g0_1221-21kworker/1:223:05:311
121550390irq/30-eth0_g0_1221-21kworker/1:222:49:451
121550390irq/30-eth0_g0_1221-21kworker/1:222:10:411
121550390irq/30-eth0_g0_1221-21kworker/1:221:50:021
121450390irq/29-eth0_g0_31ksoftirqd/021:42:220
121450390irq/29-eth0_g0_31ksoftirqd/000:35:330
121450390irq/29-eth0_g0_23393-21taskset22:51:330
121450390irq/29-eth0_g0_13-21kworker/0:122:15:010
121450390irq/29-eth0_g0_13-21kworker/0:121:27:120
121390ksoftirqd/1121550irq/30-eth0_g0_23:12:440
121390ksoftirqd/1121550irq/30-eth0_g0_23:12:440
121390ksoftirqd/1121550irq/30-eth0_g0_20:48:310
121390ksoftirqd/1121550irq/30-eth0_g0_20:27:360
121390ksoftirqd/1121550irq/30-eth0_g0_20:21:310
121390ksoftirqd/1121550irq/30-eth0_g0_19:54:100
121390ksoftirqd/1121550irq/30-eth0_g0_00:25:540
121390ksoftirqd/1121450irq/29-eth0_g0_23:20:481
121390ksoftirqd/1121450irq/29-eth0_g0_20:01:051
72399381cyclictest21045-21taskset22:28:421
72399381cyclictest0-21swapper/122:34:281
121550380irq/30-eth0_g0_1221-21kworker/1:223:52:081
121550380irq/30-eth0_g0_1221-21kworker/1:223:46:101
121550380irq/30-eth0_g0_1221-21kworker/1:222:40:241
121550380irq/30-eth0_g0_121ksoftirqd/123:30:451
121550380irq/30-eth0_g0_0-21swapper/122:06:251
121450380irq/29-eth0_g0_1911-21runrttasks23:07:490
121450380irq/29-eth0_g0_13-21kworker/0:123:25:250
121450380irq/29-eth0_g0_13-21kworker/0:122:42:140
121450380irq/29-eth0_g0_13-21kworker/0:122:25:030
121450380irq/29-eth0_g0_13-21kworker/0:122:09:490
121450380irq/29-eth0_g0_13-21kworker/0:121:44:490
121450380irq/29-eth0_g0_13-21kworker/0:121:29:590
121450380irq/29-eth0_g0_13-21kworker/0:100:06:400
121450380irq/29-eth0_g0_121ksoftirqd/123:09:011
121450380irq/29-eth0_g0_121ksoftirqd/123:09:011
121380ksoftirqd/1121550irq/30-eth0_g0_23:51:240
121380ksoftirqd/1121550irq/30-eth0_g0_20:06:290
121380ksoftirqd/1121550irq/30-eth0_g0_20:06:290
121380ksoftirqd/1121550irq/30-eth0_g0_19:45:460
72399371cyclictest12457-21cat21:03:431
121550370irq/30-eth0_g0_1221-21kworker/1:222:57:361
121550370irq/30-eth0_g0_1221-21kworker/1:222:21:171
121550370irq/30-eth0_g0_0-21swapper/100:19:401
121450370irq/29-eth0_g0_72299cyclictest00:32:160
121450370irq/29-eth0_g0_72299cyclictest00:32:160
121450370irq/29-eth0_g0_31ksoftirqd/021:20:400
121450370irq/29-eth0_g0_1911-21runrttasks20:52:140
121450370irq/29-eth0_g0_13-21kworker/0:123:44:130
121450370irq/29-eth0_g0_13-21kworker/0:123:40:590
121450370irq/29-eth0_g0_13-21kworker/0:122:00:250
121450370irq/29-eth0_g0_13-21kworker/0:121:56:510
121450370irq/29-eth0_g0_13-21kworker/0:100:00:320
121450370irq/29-eth0_g0_12489-21cat21:03:430
121370ksoftirqd/1121550irq/30-eth0_g0_21:19:011
121370ksoftirqd/1121450irq/29-eth0_g0_19:12:491
72399362cyclictest1892-21syslogd21:08:421
72399362cyclictest10903-21munin-run20:48:431
72399361cyclictest0-21swapper/120:16:551
65772360sleep11221-21kworker/1:220:05:331
65772360sleep11221-21kworker/1:220:05:331
121550360irq/30-eth0_g0_1221-21kworker/1:223:01:421
121550360irq/30-eth0_g0_0-21swapper/121:45:301
121450360irq/29-eth0_g0_31ksoftirqd/022:06:270
121450360irq/29-eth0_g0_1911-21runrttasks20:58:190
121450360irq/29-eth0_g0_1911-21runrttasks20:01:360
121450360irq/29-eth0_g0_13-21kworker/0:122:44:000
121450360irq/29-eth0_g0_13-21kworker/0:122:20:420
121450360irq/29-eth0_g0_121ksoftirqd/121:17:171
72399351cyclictest7363-21sort20:13:421
72399351cyclictest0-21swapper/120:22:241
121450350irq/29-eth0_g0_7012-21sshd20:09:440
121450350irq/29-eth0_g0_2789-21/usr/sbin/munin19:28:430
121450350irq/29-eth0_g0_1911-21runrttasks20:35:060
121450350irq/29-eth0_g0_1911-21runrttasks19:19:540
72399341cyclictest9415-21grep20:33:431
72399341cyclictest0-21swapper/120:53:001
72399341cyclictest0-21swapper/119:55:341
72399341cyclictest0-21swapper/119:46:481
72399341cyclictest0-21swapper/119:43:401
72399341cyclictest0-21swapper/119:27:271
121450340irq/29-eth0_g0_9380-21chrt20:33:420
121450340irq/29-eth0_g0_1911-21runrttasks20:42:350
121450340irq/29-eth0_g0_1911-21runrttasks20:17:260
121450340irq/29-eth0_g0_1911-21runrttasks19:52:400
121450340irq/29-eth0_g0_1911-21runrttasks19:39:280
72399332cyclictest1972-21lldpd19:32:351
72399331cyclictest0-21swapper/119:50:271
72399330cyclictest0-21swapper/119:36:341
72399330cyclictest0-21swapper/119:17:121
121450330irq/29-eth0_g0_1911-21runrttasks19:13:400
121450330irq/29-eth0_g0_1911-21runrttasks19:04:451
72399321cyclictest0-21swapper/120:55:111
72399321cyclictest0-21swapper/120:33:461
72399320cyclictest0-21swapper/119:20:141
121450320irq/29-eth0_g0_1972-21lldpd19:17:350
121450320irq/29-eth0_g0_1911-21runrttasks21:04:150
72399311cyclictest0-21swapper/120:25:231
121450300irq/29-eth0_g0_10244-21runrttasks20:41:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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