You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-07 - 00:54

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 #4, slot #1

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.

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 rack4slot1s.osadl.org (updated Wed May 06, 2026 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2640921330,2sleep026412-21if_wlan012:07:320
2640921330,2sleep026412-21if_wlan012:07:320
2640921330,2sleep026412-21if_wlan012:07:320
1491021320,3sleep10-21swapper/110:10:021
1491021320,3sleep10-21swapper/110:10:021
119521020,1sleep00-21swapper/012:27:300
36382840,11sleep0171ktimers/012:32:360
36382840,11sleep0171ktimers/012:32:360
119312840,2chrt0-21swapper/211:27:382
119312840,2chrt0-21swapper/211:27:382
119312840,2chrt0-21swapper/211:27:382
258622780,3chrt0-21swapper/207:47:282
258622780,3chrt0-21swapper/207:47:282
141732700,1sleep014176-21fschecks_count08:42:290
141732700,1sleep014176-21fschecks_count08:42:290
197752690,3sleep119778-21fschecks_count08:57:301
197752690,3sleep119778-21fschecks_count08:57:301
197752690,3sleep119778-21fschecks_count08:57:301
212212680,3sleep20-21swapper/211:52:382
212212680,3sleep20-21swapper/211:52:382
104492660,2chrt0-21swapper/309:57:383
101812660,3sleep30-21swapper/308:32:233
121452620,3chrt0-21swapper/310:02:323
121452620,3chrt0-21swapper/310:02:323
104032620,2chrt10405-21fschecks_count08:32:291
253092580,2sleep30-21swapper/310:37:343
253092580,2sleep30-21swapper/310:37:343
65452560,2sleep20-21swapper/212:42:232
209662560,3sleep30-21swapper/307:32:383
209662560,3sleep30-21swapper/307:32:383
175262560,3chrt0-21swapper/311:42:383
175262560,3chrt0-21swapper/311:42:383
175262560,3chrt0-21swapper/311:42:383
163362510,3sleep30-21swapper/311:41:503
163362510,3sleep30-21swapper/311:41:503
163362510,3sleep30-21swapper/311:41:503
325852500,2sleep0171ktimers/012:22:390
117782500,1sleep00-21swapper/010:02:290
117782500,1sleep00-21swapper/010:02:290
248442450,3sleep00-21swapper/012:02:370
248442450,3sleep00-21swapper/012:02:370
302492430,3sleep30-21swapper/309:22:403
302492430,3sleep30-21swapper/309:22:403
302492430,3sleep30-21swapper/309:22:403
230942430,2sleep1544-21lldpd09:06:511
230942430,2sleep1544-21lldpd09:06:511
217922410,2sleep20-21swapper/210:27:372
217922410,2sleep20-21swapper/210:27:372
321472380,3chrt0-21swapper/310:57:283
321472380,3chrt0-21swapper/310:57:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional