You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-15 - 00:38

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 Tue Jul 14, 2026 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2549129583,8sleep20-21swapper/207:07:152
2548929267,8sleep00-21swapper/007:07:130
2564728464,16sleep10-21swapper/107:09:151
2552528471,8sleep30-21swapper/307:07:403
2579399290,29cyclictest0-21swapper/209:11:302
2578799280,1cyclictest0-21swapper/012:16:470
2579399250,25cyclictest0-21swapper/211:06:092
2579399250,24cyclictest0-21swapper/209:23:492
2579199251,22cyclictest0-21swapper/109:10:131
2579399240,22cyclictest0-21swapper/211:30:202
2579399240,1cyclictest0-21swapper/209:15:422
2579399223,17cyclictest0-21swapper/210:02:352
2579399220,21cyclictest0-21swapper/212:33:482
2579399220,21cyclictest0-21swapper/212:22:352
2579399210,4cyclictest0-21swapper/209:56:062
2579399210,1cyclictest0-21swapper/212:29:192
2579399210,1cyclictest0-21swapper/210:10:382
2578799210,1cyclictest0-21swapper/009:57:310
2579399200,19cyclictest0-21swapper/211:42:382
2579399200,19cyclictest0-21swapper/209:48:092
25791992019,1cyclictest25-21ksoftirqd/111:02:321
2579199200,2cyclictest0-21swapper/111:18:561
2578799200,3cyclictest0-21swapper/010:10:370
2579399191,18cyclictest0-21swapper/210:31:542
2579399191,16cyclictest0-21swapper/211:46:202
2579399190,0cyclictest0-21swapper/211:36:582
2579199191,1cyclictest0-21swapper/111:58:501
2578799193,12cyclictest9923-21cron11:20:000
25787991918,1cyclictest0-21swapper/010:45:160
2578799190,19cyclictest0-21swapper/010:31:540
2579799183,2cyclictest0-21swapper/309:45:113
25797991816,1cyclictest0-21swapper/311:07:213
2579399182,15cyclictest0-21swapper/210:39:242
2579399180,17cyclictest0-21swapper/210:49:112
2579199182,2cyclictest18389-21diskmemload10:10:461
25791991816,2cyclictest38150irq/131-snd_hda11:42:131
2578799180,4cyclictest0-21swapper/009:41:220
2579399170,1cyclictest0-21swapper/211:28:562
2579399170,17cyclictest0-21swapper/211:56:392
2579399170,17cyclictest0-21swapper/209:33:312
25787991717,0cyclictest0-21swapper/012:31:000
2578799170,4cyclictest0-21swapper/011:05:530
2578799170,2cyclictest0-21swapper/009:45:070
2578799170,14cyclictest0-21swapper/010:18:420
25797991615,1cyclictest0-21swapper/312:32:243
25797991614,1cyclictest0-21swapper/310:32:153
25797991613,3cyclictest0-21swapper/309:30:183
25797991612,3cyclictest14275-21turbostat.cron12:40:003
25793991615,1cyclictest0-21swapper/209:35:402
2579399160,15cyclictest0-21swapper/209:41:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional