You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-30 - 19:23

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 #7, slot #7

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack7slot7s.osadl.org (updated Sun Aug 30, 2026 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119129481,9sleep00-21swapper/007:09:060
100028975,9sleep20-21swapper/207:06:442
93428469,10sleep30-21swapper/307:05:533
117728265,13sleep10-21swapper/107:08:551
135699250,22cyclictest0-21swapper/111:29:261
135699210,19cyclictest0-21swapper/110:10:111
135399210,21cyclictest0-21swapper/010:04:180
135399210,1cyclictest0-21swapper/011:27:340
1358992018,2cyclictest0-21swapper/211:46:332
135899200,19cyclictest0-21swapper/210:55:422
135699200,1cyclictest0-21swapper/109:31:221
1353992019,1cyclictest0-21swapper/010:42:510
135399200,1cyclictest0-21swapper/011:50:150
135899194,8cyclictest22918-21df_abs10:05:152
135899190,1cyclictest0-21swapper/211:09:162
1356991915,2cyclictest16784-21sh12:35:291
296362180,0sleep00-21swapper/009:10:500
1362991816,1cyclictest16701-21kworker/3:110:05:233
1358991813,1cyclictest32-21ksoftirqd/209:35:442
135899180,18cyclictest0-21swapper/211:27:272
135699180,1cyclictest0-21swapper/110:50:481
135399180,1cyclictest0-21swapper/012:04:410
135399180,1cyclictest0-21swapper/011:09:150
1362991716,1cyclictest0-21swapper/308:50:223
136299170,16cyclictest0-21swapper/307:25:143
135899170,17cyclictest0-21swapper/211:38:572
135699170,2cyclictest0-21swapper/111:35:501
135399170,16cyclictest0-21swapper/012:37:460
1358991615,1cyclictest0-21swapper/212:05:222
1358991615,1cyclictest0-21swapper/209:27:502
1358991611,3cyclictest0-21swapper/209:22:062
135699169,6cyclictest24421-21grep10:25:181
135699166,4cyclictest26579-21diskmemload12:02:421
135699160,16cyclictest0-21swapper/111:08:151
135699160,14cyclictest0-21swapper/110:35:141
135399164,6cyclictest16097-21awk07:40:010
135399164,6cyclictest12378-21munin-run09:40:010
136299152,12cyclictest0-21swapper/309:50:303
1362991514,1cyclictest16701-21kworker/3:111:14:243
136299151,1cyclictest2123-21ssh10:30:553
136299151,1cyclictest0-21swapper/309:26:033
1358991512,2cyclictest31323-21df10:10:142
135899151,1cyclictest141rcu_preempt11:00:262
135699153,11cyclictest26579-21diskmemload09:15:151
1356991512,2cyclictest3354-21cat11:10:261
135699151,13cyclictest26579-21diskmemload12:26:231
135699150,14cyclictest0-21swapper/109:43:001
1353991514,1cyclictest0-21swapper/010:12:370
135399150,15cyclictest0-21swapper/011:30:070
136299149,3cyclictest12827-21wc07:30:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional