You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-15 - 00:50

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #e, slot #3

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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
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.
Unexpectedly long latencies may be caused by SMIs
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 rackeslot3s.osadl.org (updated Sat Mar 14, 2026 12:45:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25510289910517,5cyclictest131rcu_preempt12:40:031
25510249910091,3cyclictest0-21swapper/009:25:020
2551024999288,2cyclictest0-21swapper/009:50:020
2551024999140,39cyclictest0-21swapper/010:25:010
2551024999140,39cyclictest0-21swapper/010:25:010
2551024997427,23cyclictest12-21ksoftirqd/010:45:010
2551024997254,13cyclictest0-21swapper/007:10:010
2551024997128,11cyclictest2628322-21ssh11:49:100
2551024997113,32cyclictest16850irq/134-800000012:15:070
255102499701,38cyclictest131rcu_preempt09:43:040
2551024996928,32cyclictest12-21ksoftirqd/011:25:010
2551024996924,13cyclictest2613806-21rm11:16:320
2551028996818,11cyclictest23-21ksoftirqd/110:35:021
2551024996829,17cyclictest12-21ksoftirqd/012:35:030
2551032996545,16cyclictest3467602-21systemd-journal10:00:002
2551028996323,7cyclictest23-21ksoftirqd/109:35:001
2551028996222,8cyclictest23-21ksoftirqd/110:40:021
2551028996213,6cyclictest131rcu_preempt07:40:001
2551024996228,23cyclictest12-21ksoftirqd/010:30:000
2551024996226,9cyclictest12-21ksoftirqd/012:05:110
2551024996130,22cyclictest12-21ksoftirqd/009:20:010
2551024996122,20cyclictest2588471-21ssh10:19:590
2551024996115,35cyclictest12-21ksoftirqd/012:15:010
2551036996028,18cyclictest37-21ksoftirqd/311:04:243
2551036996028,18cyclictest37-21ksoftirqd/311:04:243
2551028996020,5cyclictest131rcu_preempt11:52:431
2551024996028,16cyclictest2631951-21ssh11:57:080
2551024996028,16cyclictest2631951-21ssh11:57:080
2551028995918,12cyclictest23-21ksoftirqd/111:30:021
2551024995930,12cyclictest2623406-21ssh11:38:100
2551024995928,15cyclictest2601790-21ssh10:49:540
2551024995912,42cyclictest16850irq/134-800000011:15:010
2551024995912,42cyclictest16850irq/134-800000011:15:000
2551032995847,6cyclictest2572965-21kworker/2:011:51:322
2551028995822,9cyclictest23-21ksoftirqd/112:15:001
2551024995830,20cyclictest12-21ksoftirqd/011:35:000
2551028995716,6cyclictest131rcu_preempt09:15:001
2551024995740,14cyclictest16950irq/224-800000007:40:020
2551024995724,22cyclictest12-21ksoftirqd/011:52:200
2551028995615,5cyclictest131rcu_preempt09:59:231
2551028995610,6cyclictest131rcu_preempt11:33:231
2551024995638,15cyclictest16850irq/134-800000009:32:190
2551032995512,5cyclictest131rcu_preempt09:10:032
2551032995512,5cyclictest131rcu_preempt09:10:022
255102499557,3cyclictest0-21swapper/010:02:030
255102499557,3cyclictest0-21swapper/010:02:020
2551024995527,13cyclictest2583769-21ssh10:09:140
255102499551,38cyclictest131rcu_preempt12:22:090
255103299548,7cyclictest131rcu_preempt12:30:012
2551032995428,10cyclictest2550608-21kworker/2:108:55:022
2551032995428,10cyclictest2550608-21kworker/2:108:55:022
255102899548,17cyclictest131rcu_preempt09:30:011
2551028995418,10cyclictest23-21ksoftirqd/109:40:001
2551028995414,9cyclictest131rcu_preempt11:41:421
2551028995414,6cyclictest131rcu_preempt10:48:011
2551028995412,9cyclictest23-21ksoftirqd/107:55:001
2551024995427,12cyclictest2584817-21ssh10:11:230
2551032995345,5cyclictest2628622-21kworker/2:312:21:312
2551032995345,5cyclictest2572965-21kworker/2:010:47:422
255102899536,10cyclictest131rcu_preempt12:04:591
2551028995339,10cyclictest23-21ksoftirqd/110:24:511
2551028995339,10cyclictest23-21ksoftirqd/110:24:511
2551024995316,33cyclictest16850irq/134-800000010:40:010
2551024995312,35cyclictest12-21ksoftirqd/011:45:020
2551036995237,11cyclictest2644434-21cat12:25:023
255102899528,6cyclictest131rcu_preempt11:10:011
2551028995219,7cyclictest23-21ksoftirqd/107:40:281
2551028995214,6cyclictest131rcu_preempt12:33:391
2551028995211,6cyclictest131rcu_preempt10:29:371
2551024995223,14cyclictest2602544-21ssh10:51:080
2551032995143,5cyclictest2572965-21kworker/2:011:34:512
2551032995143,5cyclictest2544860-21kworker/2:210:19:162
2551032995143,5cyclictest2544860-21kworker/2:209:37:322
2551032995143,5cyclictest2544860-21kworker/2:209:13:112
2551032995142,5cyclictest2572965-21kworker/2:010:56:232
2551032995142,5cyclictest2544860-21kworker/2:209:48:222
2551028995115,5cyclictest131rcu_preempt11:00:011
2551028995114,6cyclictest131rcu_preempt12:20:001
2551028995113,9cyclictest23-21ksoftirqd/108:15:011
2551028995113,9cyclictest23-21ksoftirqd/108:15:011
2551028995112,6cyclictest131rcu_preempt10:20:011
2551028995112,5cyclictest131rcu_preempt09:43:441
255102899511,25cyclictest0-21swapper/110:05:021
255102899511,25cyclictest0-21swapper/110:05:011
2551028995110,15cyclictest131rcu_preempt10:10:271
255102499515,29cyclictest19350irq/34-mmc109:15:020
2551024995131,17cyclictest12-21ksoftirqd/012:36:560
2551024995127,16cyclictest12-21ksoftirqd/010:35:000
255102499512,5cyclictest131rcu_preempt09:38:410
2551024995113,17cyclictest131rcu_preempt11:01:530
2551024995113,17cyclictest131rcu_preempt11:01:520
255103299509,6cyclictest131rcu_preempt11:05:022
255103299509,6cyclictest131rcu_preempt11:05:022
2551032995043,4cyclictest2544860-21kworker/2:210:02:572
2551032995043,4cyclictest2544860-21kworker/2:210:02:562
2551032995042,5cyclictest2572965-21kworker/2:011:39:192
2551032995041,5cyclictest2572965-21kworker/2:011:41:122
255102899505,10cyclictest23-21ksoftirqd/109:51:241
2551028995019,19cyclictest23-21ksoftirqd/112:27:291
2551028995014,5cyclictest131rcu_preempt11:38:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional