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2026-01-09 - 14:35
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #3, slot #4

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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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, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack3slot4.osadl.org (updated Fri Jan 09, 2026 12:46:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
3427867232363209,18sleep50-21swapper/507:05:325
3427867232363209,18sleep50-21swapper/507:05:325
342892999142105,28cyclictest69050irq/528-eth0-Tx12:05:330
342892999141110,25cyclictest210-21kswapd010:00:000
34289299912697,25cyclictest210-21kswapd012:00:160
34289299912697,25cyclictest210-21kswapd012:00:150
34289299912591,26cyclictest3498787-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		09:44:560
34289299912496,23cyclictest210-21kswapd012:30:260
34289339912396,9cyclictest210-21kswapd010:40:111
34289299912174,33cyclictest0-21swapper/011:55:390
34289299912083,29cyclictest3605709-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		11:35:120
34289299912073,33cyclictest3580965-21ssh10:38:130
34289299912068,37cyclictest0-21swapper/010:10:370
34289299912068,37cyclictest0-21swapper/010:10:370
34289299911778,30cyclictest0-21swapper/007:55:170
34289299911778,30cyclictest0-21swapper/007:55:160
34289299911768,32cyclictest0-21swapper/012:25:300
3428929991171,103cyclictest0-21swapper/010:52:230
34289299911672,35cyclictest68950irq/527-eth0-Tx11:00:330
34289299911672,35cyclictest68950irq/527-eth0-Tx11:00:330
3428929991162,103cyclictest0-21swapper/009:10:010
34289299911572,30cyclictest0-21swapper/009:13:130
3428929991152,98cyclictest0-21swapper/009:52:120
3428929991152,104cyclictest0-21swapper/007:40:280
3428929991152,104cyclictest0-21swapper/007:40:280
3428929991152,102cyclictest3500634-21ps09:30:410
34289299911468,32cyclictest3472598-21cat08:55:410
3428929991141,101cyclictest0-21swapper/011:10:210
342893899113101,5cyclictest3464798-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		08:59:482
34289299911360,40cyclictest3483029-21ntpq09:15:360
34289299911359,39cyclictest0-21swapper/007:50:350
34289299911356,41cyclictest0-21swapper/008:10:360
342894299112100,7cyclictest210-21kswapd011:45:113
34289389911298,7cyclictest3518382-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		09:59:582
34289299911272,31cyclictest68950irq/527-eth0-Tx09:25:280
34289299911261,38cyclictest0-21swapper/008:30:330
34289299911261,38cyclictest0-21swapper/008:30:320
3428929991121,89cyclictest0-21swapper/010:00:090
3428929991121,89cyclictest0-21swapper/010:00:090
342894799111101,5cyclictest3716967-21ssh12:30:224
34289299911172,30cyclictest0-21swapper/007:15:200
3428929991112,97cyclictest0-21swapper/007:25:330
3428929991112,96cyclictest0-21swapper/010:48:270
3428929991111,99cyclictest0-21swapper/009:46:110
3428929991111,96cyclictest0-21swapper/010:18:030
3428929991111,96cyclictest0-21swapper/010:18:030
34289389911097,6cyclictest3464798-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		09:35:262
34289299911060,43cyclictest3525861-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		10:44:510
3428929991102,97cyclictest0-21swapper/012:15:340
3428929991101,98cyclictest0-21swapper/011:40:250
34289299910957,21cyclictest0-21swapper/011:21:190
3428929991091,96cyclictest0-21swapper/011:25:210
34289429910895,6cyclictest3446874-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		08:39:413
34289299910864,32cyclictest68950irq/527-eth0-Tx08:05:250
34289299910859,37cyclictest0-21swapper/011:09:470
34289299910859,37cyclictest0-21swapper/011:09:470
34289299910857,12cyclictest0-21swapper/007:20:300
34289299910857,12cyclictest0-21swapper/007:20:300
34289389910793,7cyclictest3675882-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		12:05:162
34289299910659,37cyclictest68950irq/527-eth0-Tx12:10:300
34289299910659,34cyclictest0-21swapper/008:15:300
34289299910645,26cyclictest0-21swapper/011:30:370
34289299910635,22cyclictest3662963-21ssh11:45:370
3428929991062,92cyclictest0-21swapper/009:35:280
369528221050,4sleep10-21swapper/112:12:121
34289429910574,7cyclictest3620106-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		11:28:133
34289389910591,7cyclictest3575143-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork		10:40:042
34289389910586,7cyclictest3666890-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		12:10:162
34289299910553,23cyclictest3474215-21grep09:00:270
34289299910462,30cyclictest69150irq/529-eth0-Tx10:33:050
34289299910453,23cyclictest0-21swapper/011:50:290
34289299910453,23cyclictest0-21swapper/011:50:290
34289299910359,35cyclictest0-21swapper/011:15:430
34289299910359,35cyclictest0-21swapper/011:15:430
34289299910352,17cyclictest3722538-21rm12:35:100
34289299910251,22cyclictest0-21swapper/008:35:270
3428929991022,72cyclictest0-21swapper/008:52:290
34289299910215,38cyclictest13-21ksoftirqd/011:00:010
34289389910188,6cyclictest3446874-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		08:54:442
34289299910148,28cyclictest0-21swapper/008:40:300
34289299910134,17cyclictest0-21swapper/012:25:000
3428929991002,93cyclictest0-21swapper/007:45:280
3428938999990,6cyclictest210-21kswapd011:00:252
3428938999990,6cyclictest210-21kswapd011:00:242
3428951999891,4cyclictest0-21swapper/510:00:005
3428947999891,3cyclictest0-21swapper/408:24:384
3428942999888,6cyclictest210-21kswapd009:25:263
342892999981,91cyclictest0-21swapper/007:10:370
342892999981,64cyclictest0-21swapper/010:20:270
342892999981,64cyclictest0-21swapper/010:20:270
3428933999787,6cyclictest210-21kswapd012:20:251
3428929999744,24cyclictest0-21swapper/010:05:410
3428929999744,24cyclictest0-21swapper/010:05:400
3428938999683,6cyclictest3605709-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork		11:25:092
3428933999675,8cyclictest3558652-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork		10:30:041
342892999961,13cyclictest3565798-21bingrep10:25:250
342892999961,13cyclictest3565798-21bingrep10:25:250
3428947999590,2cyclictest0-21swapper/409:04:484
3428938999581,6cyclictest3525861-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork		10:20:012
3428929999552,13cyclictest3469183-21latency_hist08:50:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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