You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-24 - 17:12

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 Jun 24, 2026 12:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1348221310,3sleep30-21swapper/310:58:163
937521240,4sleep2351rcuc/212:13:202
937521240,4sleep2351rcuc/212:13:202
937521240,4sleep2351rcuc/212:13:202
1178221220,2sleep20-21swapper/210:53:202
1178221220,2sleep20-21swapper/210:53:202
41712990,2chrt4177-21cpu09:08:140
41712990,2chrt4177-21cpu09:08:140
41712990,2chrt4177-21cpu09:08:140
104652910,2sleep110462-21cut07:58:121
104652910,2sleep110462-21cut07:58:121
197312890,2chrt0-21swapper/312:43:043
197312890,2chrt0-21swapper/312:43:043
44082870,2sleep20-21swapper/209:08:162
44082870,2sleep20-21swapper/209:08:162
44082870,2sleep20-21swapper/209:08:162
97162830,3sleep30-21swapper/309:23:083
97162830,3sleep30-21swapper/309:23:083
97162830,3sleep30-21swapper/309:23:083
243272820,4sleep30-21swapper/310:00:113
243272820,4sleep30-21swapper/310:00:113
243272820,4sleep30-21swapper/310:00:113
243272820,4sleep30-21swapper/310:00:113
94572780,3sleep20-21swapper/207:53:222
94572780,3sleep20-21swapper/207:53:222
56592770,2sleep15660-21grep07:43:241
56592770,2sleep15660-21grep07:43:241
45552690,3chrt0-21swapper/309:08:173
45552690,3chrt0-21swapper/309:08:173
45552690,3chrt0-21swapper/309:08:173
212712610,3chrt0-21swapper/309:53:153
212712610,3chrt0-21swapper/309:53:153
287062600,3chrt0-21swapper/211:38:232
287062600,3chrt0-21swapper/211:38:232
101992600,4sleep00-21swapper/010:48:240
101992600,4sleep00-21swapper/010:48:240
101992600,4sleep00-21swapper/010:48:240
198732540,3chrt0-21swapper/211:13:262
198732540,3chrt0-21swapper/211:13:262
198732540,3chrt0-21swapper/211:13:262
214102520,3sleep20-21swapper/211:18:252
214102520,3sleep20-21swapper/211:18:252
214102520,3sleep20-21swapper/211:18:252
214102520,3sleep20-21swapper/211:18:252
110912520,2chrt0-21swapper/307:58:183
251572510,3chrt0-21swapper/210:03:152
265672500,3chrt0-21swapper/211:33:162
265672500,3chrt0-21swapper/211:33:162
18122480,3chrt0-21swapper/007:33:220
18122480,3chrt0-21swapper/007:33:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional