You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-14 - 21:56

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 #1, slot #6

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
  Intel
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 rack1slot6s.osadl.org (updated Tue Apr 14, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2485991050,5rtkit-daemon2484-21rtkit-daemon08:15:310
3043621040,4sleep3361ktimersoftd/307:45:353
15047997421,45cyclictest7787-21diskmemload07:50:160
15047997420,46cyclictest3170-21unixbench_multi08:40:330
15047997324,27cyclictest13379-21grep06:15:390
15047997317,48cyclictest0-21swapper/008:49:540
15047997222,42cyclictest15762-21grep09:00:180
15047997222,42cyclictest15762-21grep09:00:180
248599710,6rtkit-daemon0-21swapper/005:15:230
15047997120,32cyclictest32756-21taskset08:37:360
15047997119,31cyclictest0-21swapper/007:59:530
15047997115,39cyclictest7787-21diskmemload07:25:200
15047997114,43cyclictest0-21swapper/009:19:490
15047997113,50cyclictest0-21swapper/007:30:190
15047997024,39cyclictest26406-21tail07:40:230
15047997018,45cyclictest0-21swapper/010:40:090
15047997017,36cyclictest0-21swapper/010:20:120
15047997017,36cyclictest0-21swapper/010:20:120
241772692,59sleep20-21swapper/209:12:502
171902690,4chrt17189-21sh07:26:442
15047996920,42cyclictest9144-21switchtime10:25:280
15047996920,31cyclictest27838-21sed08:30:200
15047996916,46cyclictest0-21swapper/009:10:120
15047996915,47cyclictest0-21swapper/008:00:310
15047996819,42cyclictest0-21swapper/007:20:470
15047996817,44cyclictest0-21swapper/009:48:470
15047996815,21cyclictest0-21swapper/007:17:130
1505299674,26cyclictest0-21swapper/207:52:012
15047996720,39cyclictest1419-21runrttasks06:35:050
15047996718,31cyclictest1243-21lldpd08:59:540
15047996716,35cyclictest0-21swapper/009:58:120
15047996711,36cyclictest0-21swapper/008:05:180
15047996620,39cyclictest0-21swapper/009:35:280
15047996620,38cyclictest22853-21tune2fs07:35:200
15047996620,38cyclictest22853-21tune2fs07:35:200
15047996617,43cyclictest0-21swapper/009:20:260
15047996616,43cyclictest0-21swapper/008:25:090
15047996616,43cyclictest0-21swapper/007:49:480
15047996616,32cyclictest0-21swapper/010:33:300
204362654,13sleep20-21swapper/209:06:292
197982654,12sleep20-21swapper/210:41:142
15047996518,27cyclictest4280-21kworker/0:010:35:320
15047996516,42cyclictest0-21swapper/009:25:130
15047996516,41cyclictest0-21swapper/006:55:170
15047996516,41cyclictest0-21swapper/006:55:170
15047996514,35cyclictest0-21swapper/006:10:110
15047996514,35cyclictest0-21swapper/006:10:110
15047996512,45cyclictest0-21swapper/010:15:210
15047996512,32cyclictest0-21swapper/009:33:130
15047996419,37cyclictest0-21swapper/010:05:190
15047996418,40cyclictest0-21swapper/010:00:100
15047996418,30cyclictest1683-21nscd07:05:030
15047996416,41cyclictest0-21swapper/008:25:000
280992632,9sleep10-21swapper/107:43:121
15053996333,12cyclictest0-21swapper/309:35:183
15047996319,30cyclictest0-21swapper/008:10:300
15047996317,30cyclictest0-21swapper/010:11:570
15047996317,28cyclictest8744-21munin-node08:50:150
15047996315,41cyclictest20134-21ssh09:05:330
33992613,50sleep23447-21diskstats09:30:152
15047996120,34cyclictest26003-21kworker/0:207:15:030
15047996115,30cyclictest0-21swapper/005:45:240
15047996115,29cyclictest0-21swapper/006:00:210
15047996114,30cyclictest0-21swapper/006:20:210
15047996112,33cyclictest0-21swapper/009:50:570
15047996112,33cyclictest0-21swapper/009:40:170
15047996112,33cyclictest0-21swapper/009:40:170
1505299604,49cyclictest12414-21chrt08:07:152
1505299604,48cyclictest1571-21ssh10:15:132
1505099604,34cyclictest0-21swapper/109:43:371
1505099604,34cyclictest0-21swapper/109:43:371
15047996016,38cyclictest0-21swapper/006:50:030
135812603,50sleep10-21swapper/107:21:241
15053995922,21cyclictest0-21swapper/309:18:263
15047995915,37cyclictest7202-21cpuspeed_turbos06:05:200
15053995831,13cyclictest0-21swapper/309:13:583
15053995831,13cyclictest0-21swapper/307:42:203
15053995830,12cyclictest0-21swapper/309:48:553
1505299584,47cyclictest0-21swapper/208:30:312
1505299584,47cyclictest0-21swapper/206:50:212
1505299584,47cyclictest0-21swapper/206:50:212
15052995818,34cyclictest281ktimersoftd/210:30:172
15047995817,35cyclictest1287-21snmpd05:42:110
15047995817,34cyclictest3233-21munin-node07:05:250
15047995813,37cyclictest0-21swapper/006:40:220
15047995811,39cyclictest0-21swapper/005:24:120
15047995810,34cyclictest0-21swapper/005:53:460
276252570,4sleep2281ktimersoftd/207:41:272
15053995730,13cyclictest0-21swapper/308:30:343
1505399572,20cyclictest23923-21chrt07:35:393
1505399572,20cyclictest23923-21chrt07:35:393
1505299575,45cyclictest0-21swapper/210:35:282
1505299574,46cyclictest0-21swapper/208:41:342
1505299573,46cyclictest0-21swapper/208:00:162
1505299573,45cyclictest8414-21tr07:15:162
1505099575,35cyclictest0-21swapper/108:50:281
15050995719,22cyclictest0-21swapper/108:38:021
15047995729,21cyclictest0-21swapper/005:15:070
15047995714,30cyclictest0-21swapper/005:58:470
15047995714,28cyclictest0-21swapper/006:35:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional