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2026-05-05 - 18:13

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 Tue May 05, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1211230ksoftirqd/1121550irq/30-eth0_g0_12:28:121
2991121080sleep0121550irq/30-eth0_g0_10:54:200
1211060ksoftirqd/1121550irq/30-eth0_g0_10:29:241
42742880sleep0121450irq/29-eth0_g0_12:01:590
42742880sleep0121450irq/29-eth0_g0_12:01:590
121840ksoftirqd/1121550irq/30-eth0_g0_12:32:411
121820ksoftirqd/1121550irq/30-eth0_g0_10:03:010
121800ksoftirqd/1121550irq/30-eth0_g0_10:27:171
247722680sleep1121550irq/30-eth0_g0_10:04:151
42402630sleep1121550irq/30-eth0_g0_12:01:361
42402630sleep1121550irq/30-eth0_g0_12:01:361
268812630sleep0121550irq/30-eth0_g0_10:24:200
11382580sleep0121450irq/29-eth0_g0_11:30:590
121550ksoftirqd/1121550irq/30-eth0_g0_09:29:171
121520ksoftirqd/1121550irq/30-eth0_g0_11:03:371
121510ksoftirqd/1121550irq/30-eth0_g0_12:15:531
121510ksoftirqd/1121550irq/30-eth0_g0_09:36:521
121510ksoftirqd/1121550irq/30-eth0_g0_09:12:511
121490ksoftirqd/1121550irq/30-eth0_g0_09:39:331
121470ksoftirqd/1121550irq/30-eth0_g0_12:34:221
296132450sleep1121450irq/29-eth0_g0_10:51:451
121550450irq/30-eth0_g0_1221-21kworker/1:210:21:151
26172440sleep1121450irq/29-eth0_g0_11:45:201
121440ksoftirqd/1121450irq/29-eth0_g0_11:57:210
121440ksoftirqd/1121450irq/29-eth0_g0_08:59:381
121550430irq/30-eth0_g0_1221-21kworker/1:211:23:001
121430ksoftirqd/1121550irq/30-eth0_g0_10:46:490
121450420irq/29-eth0_g0_20724-21munin-run09:24:150
121450420irq/29-eth0_g0_13-21kworker/0:110:53:000
121450420irq/29-eth0_g0_121ksoftirqd/111:15:560
121450420irq/29-eth0_g0_121ksoftirqd/111:15:560
121450420irq/29-eth0_g0_121ksoftirqd/107:16:411
121450420irq/29-eth0_g0_121ksoftirqd/107:16:411
121450410irq/29-eth0_g0_1911-21runrttasks07:07:140
121450410irq/29-eth0_g0_13-21kworker/0:111:43:070
121410ksoftirqd/1121550irq/30-eth0_g0_11:46:010
121410ksoftirqd/1121450irq/29-eth0_g0_11:29:461
121410ksoftirqd/1121450irq/29-eth0_g0_09:39:430
121550400irq/30-eth0_g0_1221-21kworker/1:211:17:301
121550400irq/30-eth0_g0_1221-21kworker/1:211:17:301
121550400irq/30-eth0_g0_1221-21kworker/1:209:45:481
121550400irq/30-eth0_g0_1221-21kworker/1:209:20:391
121450400irq/29-eth0_g0_13-21kworker/0:112:30:120
121450400irq/29-eth0_g0_13-21kworker/0:111:50:310
121450400irq/29-eth0_g0_13-21kworker/0:111:26:140
121450400irq/29-eth0_g0_13-21kworker/0:110:30:550
121450400irq/29-eth0_g0_13-21kworker/0:110:12:420
121450400irq/29-eth0_g0_13-21kworker/0:109:14:400
121400ksoftirqd/1121550irq/30-eth0_g0_10:35:260
121400ksoftirqd/1121550irq/30-eth0_g0_09:14:000
121400ksoftirqd/1121550irq/30-eth0_g0_07:38:220
121400ksoftirqd/1121450irq/29-eth0_g0_10:42:291
234422390chrt121450irq/29-eth0_g0_09:50:360
234422390chrt121450irq/29-eth0_g0_09:50:360
121550390irq/30-eth0_g0_1221-21kworker/1:211:41:121
121550390irq/30-eth0_g0_121ksoftirqd/112:13:491
121550390irq/30-eth0_g0_121ksoftirqd/111:50:461
121550390irq/30-eth0_g0_121ksoftirqd/111:29:011
121550390irq/30-eth0_g0_121ksoftirqd/109:55:101
121550390irq/30-eth0_g0_121ksoftirqd/109:49:401
121550390irq/30-eth0_g0_121ksoftirqd/109:49:401
121450390irq/29-eth0_g0_31ksoftirqd/012:23:240
121450390irq/29-eth0_g0_13-21kworker/0:111:39:110
121450390irq/29-eth0_g0_13-21kworker/0:110:17:500
121390ksoftirqd/1121550irq/30-eth0_g0_12:14:280
121390ksoftirqd/1121550irq/30-eth0_g0_12:08:190
121390ksoftirqd/1121550irq/30-eth0_g0_11:13:550
121390ksoftirqd/1121550irq/30-eth0_g0_11:03:590
121390ksoftirqd/1121550irq/30-eth0_g0_10:40:500
121390ksoftirqd/1121550irq/30-eth0_g0_10:04:450
121390ksoftirqd/1121550irq/30-eth0_g0_09:33:110
121390ksoftirqd/1121550irq/30-eth0_g0_09:25:020
121390ksoftirqd/1121550irq/30-eth0_g0_08:52:240
121390ksoftirqd/1121550irq/30-eth0_g0_08:47:130
121390ksoftirqd/1121550irq/30-eth0_g0_08:19:500
121390ksoftirqd/1121550irq/30-eth0_g0_08:18:470
121390ksoftirqd/1121550irq/30-eth0_g0_07:59:100
121390ksoftirqd/1121550irq/30-eth0_g0_07:44:030
121390ksoftirqd/1121550irq/30-eth0_g0_07:19:260
121390ksoftirqd/1121550irq/30-eth0_g0_07:15:290
121390ksoftirqd/1121550irq/30-eth0_g0_07:15:290
121390ksoftirqd/1121550irq/30-eth0_g0_07:11:290
121390ksoftirqd/1121550irq/30-eth0_g0_07:11:290
121390ksoftirqd/1121450irq/29-eth0_g0_09:15:101
121390ksoftirqd/1121450irq/29-eth0_g0_07:42:431
121390ksoftirqd/1121450irq/29-eth0_g0_07:36:311
121550380irq/30-eth0_g0_1911-21runrttasks07:05:271
121550380irq/30-eth0_g0_0-21swapper/110:11:291
121450380irq/29-eth0_g0_31ksoftirqd/011:22:490
121450380irq/29-eth0_g0_31ksoftirqd/010:22:480
121450380irq/29-eth0_g0_23932-21taskset09:55:230
121450380irq/29-eth0_g0_13-21kworker/0:112:35:460
121450380irq/29-eth0_g0_13-21kworker/0:112:25:440
121450380irq/29-eth0_g0_13-21kworker/0:111:05:570
121450380irq/29-eth0_g0_13-21kworker/0:109:45:290
121450380irq/29-eth0_g0_13-21kworker/0:109:35:220
121380ksoftirqd/1121550irq/30-eth0_g0_12:10:160
121380ksoftirqd/1121550irq/30-eth0_g0_09:00:560
121380ksoftirqd/1121550irq/30-eth0_g0_08:58:450
121380ksoftirqd/1121450irq/29-eth0_g0_10:35:481
121380ksoftirqd/1121450irq/29-eth0_g0_07:51:551
7092993732cyclictest16706-21latency_hist08:44:161
709299371cyclictest25226-21taskset10:08:401
121550370irq/30-eth0_g0_1221-21kworker/1:212:07:101
121550370irq/30-eth0_g0_1221-21kworker/1:211:13:351
121550370irq/30-eth0_g0_1221-21kworker/1:210:46:481
121550370irq/30-eth0_g0_121ksoftirqd/112:20:331
121550370irq/30-eth0_g0_121ksoftirqd/111:59:071
121550370irq/30-eth0_g0_121ksoftirqd/111:38:551
121550370irq/30-eth0_g0_121ksoftirqd/110:18:241
121550370irq/30-eth0_g0_0-21swapper/111:05:331
709299361cyclictest9627-21cat07:34:161
709299361cyclictest11177-21chrt07:49:151
121550360irq/30-eth0_g0_1221-21kworker/1:210:54:541
121450360irq/29-eth0_g0_1911-21runrttasks08:30:210
121450360irq/29-eth0_g0_1911-21runrttasks08:26:080
121450360irq/29-eth0_g0_1911-21runrttasks08:05:030
121450360irq/29-eth0_g0_1911-21runrttasks07:46:520
121450360irq/29-eth0_g0_1911-21runrttasks07:33:350
121450360irq/29-eth0_g0_16226-21latency_hist08:39:160
121450360irq/29-eth0_g0_12651-21latency_hist08:04:150
121450360irq/29-eth0_g0_121ksoftirqd/109:24:481
121550350irq/30-eth0_g0_0-21swapper/107:59:161
709299341cyclictest0-21swapper/108:27:231
121550340irq/30-eth0_g0_19209-21munin-run09:09:151
121450340irq/29-eth0_g0_1911-21runrttasks09:04:390
121450340irq/29-eth0_g0_1911-21runrttasks08:11:550
709299331cyclictest8385-21taskset07:21:411
709299331cyclictest141512sleep108:19:151
709299331cyclictest0-21swapper/108:32:131
709299331cyclictest0-21swapper/107:28:261
121450330irq/29-eth0_g0_1911-21runrttasks08:41:340
121450330irq/29-eth0_g0_1911-21runrttasks07:49:370
121330ksoftirqd/114709-21taskset08:24:161
709299321cyclictest0-21swapper/108:35:231
709299321cyclictest0-21swapper/107:12:241
709299321cyclictest0-21swapper/107:12:241
121550320irq/30-eth0_g0_709299cyclictest08:51:241
121450320irq/29-eth0_g0_16956-21runrttasks08:46:401
121450310irq/29-eth0_g0_13426-21runrttasks08:11:401
121450310irq/29-eth0_g0_0-21swapper/007:28:350
709299301cyclictest0-21swapper/108:55:211
709299301cyclictest0-21swapper/108:06:131
121550300irq/30-eth0_g0_0-21swapper/108:01:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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