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2026-08-05 - 11:55

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, 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 
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack7slot3s.osadl.org (updated Wed Aug 05, 2026 06:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13879918722,67cyclictest6129-21sort06:07:370
13879918722,67cyclictest6129-21sort06:07:370
1387991726,144cyclictest22644-21execl05:49:520
1387991643,139cyclictest24466-21latency_hist06:00:300
1387991642,137cyclictest4479-21tee05:42:340
1387991642,137cyclictest4479-21tee05:42:340
2655021520,11sleep2138999cyclictest06:06:562
2655021520,11sleep2138999cyclictest06:06:562
1387991513,36cyclictest11303-21sh06:11:480
1574421450,13sleep2138999cyclictest05:41:082
1574421450,13sleep2138999cyclictest05:41:082
1387991387,104cyclictest24392-21context106:00:340
13909913149,24cyclictest31715-21wc05:42:073
13909913149,24cyclictest31715-21wc05:42:073
13889912522,66cyclictest15604-21rm05:41:071
13889912522,66cyclictest15604-21rm05:41:071
13889912016,77cyclictest0-21swapper/106:06:141
13889912016,77cyclictest0-21swapper/106:06:141
13909911950,36cyclictest15620-21rm06:08:113
13909911950,36cyclictest15620-21rm06:08:113
1387991123,103cyclictest0-21swapper/005:52:240
1537121070,4sleep1871-21spawn06:03:111
1388991066,44cyclictest8050irq/56-dwc_otg_06:11:471
13899910423,19cyclictest24386-21context106:00:302
13909910041,25cyclictest22644-21execl05:49:543
138799993,76cyclictest0-21swapper/005:39:080
1389999617,18cyclictest11067-21od06:11:472
1390999436,23cyclictest24452-21apt-config06:00:303
1388999320,36cyclictest24390-21context106:00:321
1390999243,25cyclictest7950irq/56-dwc_otg_06:11:473
1389999212,30cyclictest0-21swapper/205:49:542
1390999033,17cyclictest24414-21apt-get06:00:343
138999897,16cyclictest0-21swapper/206:01:012
1388998925,27cyclictest26297-21kworker/1:205:49:091
138799893,80cyclictest0-21swapper/006:25:380
138799862,5cyclictest0-21swapper/005:25:480
138799862,5cyclictest0-21swapper/005:25:480
1390998235,27cyclictest4455-21fstime05:28:533
1390998235,27cyclictest4455-21fstime05:28:533
138799813,59cyclictest0-21swapper/005:05:310
36312800,2sleep00-21swapper/005:21:560
138799762,6cyclictest0-21swapper/005:33:500
138799762,6cyclictest0-21swapper/005:33:500
1390997548,22cyclictest23075-21fstime05:51:333
1390997533,13cyclictest18562-21multi.sh05:39:093
1390997448,21cyclictest750-21snmpd06:25:373
1387997427,27cyclictest7950irq/56-dwc_otg_05:20:290
1387996919,37cyclictest2388-21cron05:15:290
1387996919,37cyclictest2388-21cron05:15:290
260492680,2sleep20-21swapper/205:33:542
260492680,2sleep20-21swapper/205:33:542
1388996515,17cyclictest0-21swapper/105:51:331
138799652,7cyclictest0-21swapper/006:15:580
1390996429,24cyclictest3262-21execl05:20:303
1390996428,25cyclictest3262-21execl05:20:483
25522630,2sleep10-21swapper/105:40:181
12042630,10sleep01135-21latency_hist05:05:300
138999605,33cyclictest0-21swapper/206:25:392
138899604,16cyclictest24651-31find06:25:391
1390995824,15cyclictest18108-21seq05:33:483
1390995824,15cyclictest18108-21seq05:33:483
1387995810,38cyclictest0-21swapper/006:33:450
138799571,8cyclictest0-21swapper/006:41:270
138799571,40cyclictest0-21swapper/006:21:100
138799561,44cyclictest25977-21taskset06:36:200
138799561,44cyclictest25977-21taskset06:36:200
1390995525,22cyclictest26708-21chrt06:41:303
138999548,10cyclictest0-21swapper/205:53:132
1390995225,17cyclictest23329-21taskset06:16:213
1390995126,10cyclictest1487-21taskset05:06:493
1390995125,13cyclictest26338-21gpgv06:40:303
1390995125,13cyclictest26338-21gpgv06:40:303
1390995124,17cyclictest2374-21taskset05:15:203
1390995124,17cyclictest2374-21taskset05:15:203
1390995026,14cyclictest0-21swapper/306:31:283
138999501,17cyclictest0-21swapper/205:38:072
1388994818,6cyclictest4806-21latency_hist05:30:301
1388994818,6cyclictest4806-21latency_hist05:30:301
138899477,19cyclictest7950irq/56-dwc_otg_05:05:321
1390994428,13cyclictest24275-21cron06:25:293
138899436,23cyclictest5005-21pipe05:30:361
138899436,23cyclictest5005-21pipe05:30:361
36232420,24sleep28050irq/56-dwc_otg_05:21:502
138899401,25cyclictest0-21swapper/106:40:351
138999394,10cyclictest0-21swapper/205:05:322
138899392,26cyclictest0-21swapper/105:21:061
138999365,14cyclictest8050irq/56-dwc_otg_06:35:292
138999338,14cyclictest8050irq/56-dwc_otg_05:19:302
138999335,13cyclictest7950irq/56-dwc_otg_05:15:302
138999335,13cyclictest7950irq/56-dwc_otg_05:15:302
8992323,22sleep10-21swapper/105:02:481
138999311,15cyclictest4650-21pipe05:30:302
138999311,15cyclictest4650-21pipe05:30:302
138899303,9cyclictest0-21swapper/106:20:561
138899301,16cyclictest3395-21ls05:20:291
1388992911,4cyclictest23680-21sh06:20:291
1389992813,4cyclictest727-21runrttasks06:22:062
138999281,20cyclictest0-21swapper/206:20:162
138899283,17cyclictest0-21swapper/106:40:161
138899283,17cyclictest0-21swapper/106:40:161
138999271,10cyclictest7950irq/56-dwc_otg_06:41:382
138899271,17cyclictest0-21swapper/106:33:201
8902264,14sleep20-21swapper/205:02:412
138999262,13cyclictest0-21swapper/206:35:462
138999262,13cyclictest0-21swapper/206:35:462
7492254,15sleep30-21swapper/305:00:523
138899253,12cyclictest11-21rcu_preempt05:14:451
138899253,12cyclictest11-21rcu_preempt05:14:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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