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2026-03-07 - 15:43

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 100 highest latencies:
System rack3slot5s.osadl.org (updated Sat Mar 07, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3163221480sleep0121550irq/30-eth0_g0_12:09:420
1427421280sleep1121450irq/29-eth0_g0_10:57:071
1311321240sleep1121450irq/29-eth0_g0_10:52:511
121930ksoftirqd/1121550irq/30-eth0_g0_11:41:451
121880ksoftirqd/1121550irq/30-eth0_g0_10:15:441
121880ksoftirqd/1121550irq/30-eth0_g0_10:15:441
121530ksoftirqd/1121550irq/30-eth0_g0_10:36:361
26962520chrt121550irq/30-eth0_g0_12:22:271
121520ksoftirqd/1121550irq/30-eth0_g0_09:55:080
121510ksoftirqd/1121450irq/29-eth0_g0_10:26:570
121490ksoftirqd/1121550irq/30-eth0_g0_11:21:411
121490ksoftirqd/1121550irq/30-eth0_g0_09:32:491
121490ksoftirqd/1121450irq/29-eth0_g0_12:00:260
121480ksoftirqd/1121550irq/30-eth0_g0_11:25:241
121480ksoftirqd/1121550irq/30-eth0_g0_10:47:041
121480ksoftirqd/1121550irq/30-eth0_g0_10:47:041
121450470irq/29-eth0_g0_4898-21unixbench_singl12:30:090
121450ksoftirqd/1121550irq/30-eth0_g0_10:55:080
121450ksoftirqd/1121450irq/29-eth0_g0_12:23:510
121550440irq/30-eth0_g0_17106-21/usr/sbin/munin11:09:571
121550440irq/30-eth0_g0_1227-21kworker/1:212:08:561
121550440irq/30-eth0_g0_1227-21kworker/1:211:07:291
121440ksoftirqd/1121450irq/29-eth0_g0_12:12:270
121440ksoftirqd/1121450irq/29-eth0_g0_12:12:270
121440ksoftirqd/1121450irq/29-eth0_g0_10:34:431
121440ksoftirqd/1121450irq/29-eth0_g0_10:13:050
121440ksoftirqd/1121450irq/29-eth0_g0_09:45:211
121550430irq/30-eth0_g0_190602sleep111:15:521
121450430irq/29-eth0_g0_23238-21unixbench_singl07:05:080
121430ksoftirqd/1162662sleep011:05:140
121430ksoftirqd/1121450irq/29-eth0_g0_10:29:331
318042420sleep11227-21kworker/1:209:54:571
121550420irq/30-eth0_g0_1227-21kworker/1:212:19:081
121450420irq/29-eth0_g0_31ksoftirqd/011:46:110
121420ksoftirqd/1121550irq/30-eth0_g0_10:19:580
121420ksoftirqd/1121450irq/29-eth0_g0_10:40:451
2370199411cyclictest176522sleep108:55:081
2370199411cyclictest176522sleep108:55:081
121550410irq/30-eth0_g0_1227-21kworker/1:212:31:101
121450410irq/29-eth0_g0_31ksoftirqd/010:09:470
121450410irq/29-eth0_g0_13-21kworker/0:111:25:030
121450410irq/29-eth0_g0_13-21kworker/0:109:14:140
2370199401cyclictest5544-21unixbench_singl08:05:091
121550400irq/30-eth0_g0_13-21kworker/0:110:53:420
121550400irq/30-eth0_g0_1227-21kworker/1:209:35:131
121550400irq/30-eth0_g0_121ksoftirqd/112:00:001
121550400irq/30-eth0_g0_121ksoftirqd/109:24:161
121550400irq/30-eth0_g0_121ksoftirqd/109:24:161
121450400irq/29-eth0_g0_23567-21ntpdc09:20:030
121450400irq/29-eth0_g0_23567-21ntpdc09:20:030
121450400irq/29-eth0_g0_13-21kworker/0:109:26:550
121450400irq/29-eth0_g0_121ksoftirqd/110:01:030
121400ksoftirqd/1121550irq/30-eth0_g0_11:57:350
121400ksoftirqd/1121550irq/30-eth0_g0_11:49:540
121400ksoftirqd/1121550irq/30-eth0_g0_11:43:000
121400ksoftirqd/1121550irq/30-eth0_g0_11:15:430
121400ksoftirqd/1121550irq/30-eth0_g0_11:10:330
121400ksoftirqd/1121550irq/30-eth0_g0_11:01:350
121400ksoftirqd/1121550irq/30-eth0_g0_09:53:590
121400ksoftirqd/1121550irq/30-eth0_g0_09:31:480
121400ksoftirqd/1121550irq/30-eth0_g0_09:15:330
121400ksoftirqd/1121550irq/30-eth0_g0_07:28:340
121400ksoftirqd/1121450irq/29-eth0_g0_12:36:281
4592390sleep1467-21latency_hist12:14:461
4592390sleep1467-21latency_hist12:14:461
121550390irq/30-eth0_g0_23305-21runrttasks07:05:221
121550390irq/30-eth0_g0_1227-21kworker/1:209:29:311
121550390irq/30-eth0_g0_1227-21kworker/1:209:10:461
121450390irq/29-eth0_g0_4456-21interrupts10:14:590
121450390irq/29-eth0_g0_4456-21interrupts10:14:590
121450390irq/29-eth0_g0_31ksoftirqd/012:26:100
121450390irq/29-eth0_g0_13-21kworker/0:110:40:550
121450390irq/29-eth0_g0_121ksoftirqd/110:07:191
121390ksoftirqd/1121550irq/30-eth0_g0_12:39:120
121390ksoftirqd/1121550irq/30-eth0_g0_11:38:560
121390ksoftirqd/1121550irq/30-eth0_g0_11:33:190
121390ksoftirqd/1121550irq/30-eth0_g0_11:19:520
121390ksoftirqd/1121550irq/30-eth0_g0_10:39:260
121390ksoftirqd/1121550irq/30-eth0_g0_10:34:240
121390ksoftirqd/1121550irq/30-eth0_g0_09:46:090
121390ksoftirqd/1121550irq/30-eth0_g0_09:40:240
121390ksoftirqd/1121550irq/30-eth0_g0_09:39:190
121390ksoftirqd/1121550irq/30-eth0_g0_07:21:420
121390ksoftirqd/1121550irq/30-eth0_g0_07:21:420
121390ksoftirqd/1121450irq/29-eth0_g0_12:14:480
2370199381cyclictest24048-21latency07:10:011
121550380irq/30-eth0_g0_1227-21kworker/1:211:52:331
121550380irq/30-eth0_g0_1227-21kworker/1:209:53:561
121550380irq/30-eth0_g0_1227-21kworker/1:209:16:251
121550380irq/30-eth0_g0_121ksoftirqd/110:01:211
121550380irq/30-eth0_g0_0-21swapper/111:58:241
121450380irq/29-eth0_g0_19801-21/usr/sbin/munin09:05:020
121450380irq/29-eth0_g0_121ksoftirqd/111:46:071
121380ksoftirqd/1121450irq/29-eth0_g0_12:25:021
121380ksoftirqd/1121450irq/29-eth0_g0_07:31:151
2370199372cyclictest4159-21wc08:00:071
2370199371cyclictest76732sleep108:15:031
2370199371cyclictest31471-21cat07:40:021
2370199371cyclictest15230-21grep11:00:081
121550370irq/30-eth0_g0_1227-21kworker/1:210:10:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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